JP6722538B2 - Fuel injection valve with cylinder pressure sensor - Google Patents

Description

The present invention relates to a fuel injection valve with a cylinder pressure sensor, which is used in a direct injection type internal combustion engine that directly injects into a combustion chamber of an internal combustion engine and has a sensor capable of detecting a cylinder pressure inside the combustion chamber.

2. Description of the Related Art Conventionally, an internal pressure sensor is attached to the tip of a fuel injection valve for the purpose of detecting the in-cylinder pressure of a combustion chamber in an internal combustion engine. Patent Document 1 discloses a fuel injection valve with an in-cylinder pressure sensor that transmits a signal detected by a sensor to a signal terminal via a signal transmission portion formed along the housing and outputs the signal to the outside. ing.

JP, 2014-118824, A

In the technique disclosed in Patent Document 1, a signal transmission unit is formed near a coil that drives a fuel injection valve. Therefore, stray capacitance is generated between the coil and the signal transmission unit. A voltage is applied to the coil at the time of fuel injection, and the voltage application affects the stray capacitance, which causes noise in the signal transmission unit. If the sensor detection signal is affected by noise, the accuracy of the sensor detection value may decrease.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a fuel injection valve with an in-cylinder pressure sensor that suppresses a decrease in the accuracy of a sensor detection signal.

In order to achieve the above-mentioned object, the present invention provides a fuel with an in-cylinder pressure sensor having a sensor for detecting an in-cylinder pressure in a combustion chamber at an end of a fuel injection valve that directly injects fuel into a combustion chamber of an internal combustion engine. In the injection valve,
A valve housing disposed inside the combustion chamber, the valve housing having therein a valve body for switching the injection state of the fuel;
A sensor mounted on the tip of the valve housing,
A first signal transmitting member connected to the sensor; and a second signal transmitting member connected to the first signal transmitting member and connected to a signal terminal for outputting a signal based on the in-cylinder pressure to the outside. A signal transmission part having
Equipped with
The second signal transmitting member includes a conductor and an insulator, and the conductor is exposed at an end of the insulator and is electrically connected to the first signal transmitting member. A conductive portion and a second conductive portion which is exposed outside and is electrically connected to the signal terminal,
A shield layer covering the conductor is formed on the insulator.

According to the present invention, since the conductor that transmits the sensor detection signal is covered with the shield layer, the stray capacitance between the coil that drives the fuel injection valve and the conductor can be reduced. Then, even when a voltage is applied to the coil, noise is less likely to occur in the sensor detection signal flowing through the conductor near the coil. Therefore, the accuracy of the sensor detection value can be improved. As a result, the resolution of combustion control is improved and fuel economy is improved.

Further, the shield layer is grounded. According to this configuration, the shield layer is grounded, so that the influence of various external noises can be reduced. Therefore, the accuracy of the sensor detection value can be further improved. As a result, the resolution of combustion control is further improved, and fuel economy is further improved.

According to the present invention, since the conductor that transmits the sensor detection signal is covered with the shield layer, the stray capacitance between the coil that drives the fuel injection valve and the conductor can be reduced. Therefore, noise is less likely to occur in the sensor detection signal flowing through the conductor when the voltage is applied to the coil. Therefore, the accuracy of the sensor detection value can be improved. As a result, the resolution of combustion control is improved and fuel economy is improved.

FIG. 1 is a partial cross-sectional front view of a fuel injection valve with an in-cylinder pressure sensor according to an embodiment of the present invention. FIG. 2 is an enlarged cross-sectional view showing the vicinity of the connecting portion of the first signal transmitting portion and the second signal transmitting portion in the fuel injection valve with the in-cylinder pressure sensor of FIG. 3A is an exploded perspective view of a circuit member and a ground member, and FIG. 3B is a perspective view of a second signal transmission unit. FIG. 4 is a perspective view of the first signal transmitting portion, the first flange portion, and the second signal transmitting portion.

A preferred embodiment of a fuel injection valve with an in-cylinder pressure sensor according to the present invention will be described below in detail with reference to the accompanying drawings. In FIG. 1, reference numeral 10 indicates a fuel injection valve with an in-cylinder pressure sensor according to an embodiment of the present invention.

As shown in FIG. 1, a fuel injection valve 10 with an in-cylinder pressure sensor (hereinafter, simply referred to as the fuel injection valve 10) includes a housing 12, a resin mold portion 14 provided on the outer peripheral side of the housing 12, and the housing. A fuel supply unit 16 provided at the base end of the fuel supply unit 12 for supplying fuel, a fuel injection unit 18 provided at the front end of the housing 12, a sensor 20 mounted at the front end of the fuel injection unit 18, and an electronic device (not shown). A signal transmission unit 24 that electrically connects the signal terminal 22 connected to a control unit (ECU) and the sensor 20 to transmit an output signal is included.

In the following description, the fuel supply unit 16 side of the fuel injection valve 10 will be referred to as the base end side (arrow A direction), and the fuel injection unit 18 side will be referred to as the tip end side (arrow B direction).

The housing 12 is configured, for example, as a solenoid portion that drives the fuel injection valve 10, a fixed core 26 provided at the center thereof, a bobbin 30 provided on the outer peripheral side of the fixed core 26 and holding a coil 28, and the bobbin. It has a cylindrical holder 32 provided further on the outer peripheral side of the distal end of 30, and a movable core (not shown) that is displaced under the excitation of the coil 28.

The fixed core 26 further extends toward the base end side (direction of arrow A) of the housing 12 with respect to the base end of the holder 32, is arranged at the center of a resin mold portion 14 described later, and has a peripheral surface thereof. An annular first groove portion 34 to be engaged with the resin mold portion 14 described later is formed. Further, the fuel supply unit 16 is provided on the base end side of the fixed core 26.

The bobbin 30 is formed, for example, in a cylindrical shape, is provided between the fixed core 26 and the holder 32, and an engagement pin 36 that is engaged with the amplification member 48 is formed on the base end side (direction of arrow A) of the bobbin 30. To be done. Further, the coil 28 is wound around the outer peripheral side of the bobbin 30 in a region recessed inward in the radial direction, and the second signal transmitting member 68 constituting the signal transmitting section 24 described later is held on the outer peripheral side of the coil 28. To be done. The engagement pin 36 is provided at a position on the coupler portion 44 side of the resin mold portion 14 described later in the circumferential direction of the cylindrical bobbin 30.

The coil 28 has its end portion extending toward the base end side (direction of arrow A) of the bobbin 30 and connected to the end portions of a pair of drive terminals 38 incorporated in the resin mold portion 14 described later. Then, by energizing the coil 28 from the connector (not shown) through the drive terminal 38, the coil 28 is excited to generate a magnetic force. As a result, in the housing 12, the movable core is displaced inside the bobbin 30 under the excitation of the coil 28, and the valve element (not shown) provided in the fuel injection unit 18 is suctioned and opened.

Further, an annular second groove portion 40 that is recessed radially inward is formed on the outer peripheral surface of the base end of the holder 32, and the resin mold portion 14 described later is engaged with the second groove portion 40.

The resin mold portion 14 is formed, for example, from a resin material on the outer peripheral side of the housing 12 by molding, and a main body portion 42 formed in a cylindrical shape, and a coupler portion 44 protruding laterally from the base end of the main body portion 42. And a connecting portion 46 for connecting the main body portion 42 and the coupler portion 44. Then, by molding the resin mold portion 14 from a resin material, the first groove portion 34 of the fixed core 26 provided at the center of the main body portion 42 and the first groove portion 34 of the holder 32 provided at the tip end side of the main body portion 42. The molten resin material enters the two groove portions 40, and the housing 12 is fixed to the center and the tip of the resin mold portion 14.

The coupler portion 44 is formed, for example, in a rectangular cross section, and protrudes obliquely upward so as to be inclined by a predetermined angle with respect to the axial direction of the main body portion 42 (directions of arrows A and B). Further, the coupler section 44 has an internal space with an open end, and has a signal terminal 22 and a power supply terminal 52 of an amplification member 48, which will be described later, and a pair of drive terminals 38 for energizing the coil 28. Are provided so as to be exposed.

The amplifying member 48 is provided, for example, inside the resin mold portion 14 and has a rectangular cross section, a signal terminal 22 and a power supply terminal 52 electrically connected to the substrate 50, and the substrate 50. And a sealing portion 54 formed so as to cover the whole of the above, and is provided for the purpose of amplifying the detection value detected by the sensor 20 and outputting it from the signal terminal 22 to the outside.

The signal terminal 22 and the power supply terminal 52 are electrically connected to one end of the substrate 50 by soldering or the like, while the other end of the substrate 50 has a second signal transmitting member of a signal transmitting unit 24 described later. A connection hole (not shown) connected to 68 is formed.

Then, when the resin molding portion 14 is molded, the amplifying member 48 is integrally molded while the engagement pin 36 of the bobbin 30 is inserted and positioned in the engagement hole of the sealing portion 54. An end portion of the power supply terminal 52 opposite to the connected end portion is connected to the signal transmitting portion 24.

By connecting a connector (not shown) to the coupler section 44, power is supplied to the amplification member 48 and the sensor 20 through the power terminal 52, and the detection value detected by the sensor 20 through the signal terminal 22 is converted into an electric signal. While being output to the outside, electricity is supplied from the drive terminal 38 to the coil 28 of the housing 12.

As shown in FIG. 1, the fuel supply unit 16 has, for example, a supply passage (not shown) through which fuel is supplied inside the fixed core 26, and the fuel supply unit 16 has a base end side (direction of arrow A) of the fuel injection valve 10. ), a fuel pipe (not shown) is connected to the end of the supply passage opened in (). Then, the fuel supplied through the fuel pipe is supplied through the supply passage to the fuel injection portion 18 side (direction of arrow B) provided on the tip side.

The fuel injection unit 18 includes a valve housing 60 connected to the tip of the housing 12 and a valve body (not shown) built in the tip of the valve housing 60. Fuel is supplied from the fuel supply unit 16 to the inside of the valve housing 60, and the valve body moves toward the base end side (direction of arrow A) under the excitation of the coil 28, so that the fuel has a predetermined pressure from the tip. Is injected into the combustion chamber.

The valve housing 60 is formed of, for example, a metal material, and extends in a straight line from a first flange portion 62 that closes the tip of the housing 12 and from the first flange portion 62 toward the tip side (arrow B direction). There is a cylindrical portion 64 that is present, and the cylindrical sensor 20 is press-fitted and fitted on the outer peripheral side of the distal end of the cylindrical portion 64.

The sensor 20 includes, for example, a piezoelectric element (not shown) inside thereof, and a connection terminal connected to the piezoelectric element is exposed at the base end side (direction of arrow A). Further, a holding portion 80 of a cover member 82, which will be described later, contacts the outer peripheral surface of the sensor 20. The sensor 20 is joined to the valve housing 60 by welding the entire circumference on the inner circumference side of the tip.

The signal transmission part 24 is housed in the holder 32 of the housing 12 and the first signal transmission member 66 provided on the outer peripheral side of the valve housing 60 and connected to the sensor 20, and the first signal transmission member 66 and the signal terminal 22. And a second signal transmission member 68 for connecting the.

The first signal transmission member 66 is formed of, for example, a resin material into a cylindrical shape, and has an insulator 70 provided on the outer peripheral side of the tubular portion 64 of the valve housing 60, and a first conductive material provided inside the insulator 70. And layer 72. Then, the first conductive layer 72 is electrically connected to the connection terminal of the sensor 20 with, for example, solder or the like.

The insulator 70 is formed of, for example, a resin material such as a heat-resistant resin, and has a second flange whose base end side is expanded so as to cover the first flange portion 62 corresponding to the shape of the valve housing 60. The part 74 is formed.

As shown in FIGS. 1 and 2, the second flange portion 74 is disposed below the first flange portion 62 and is formed in a convex shape toward the second signal transmission member 68 side (arrow A direction). It has a convex connecting portion 76. The convex connection portion 76 is formed in a cylindrical shape protruding by a predetermined height so as to be substantially orthogonal to the second flange portion 74, and a storage portion 76 a into which the solder 78 can be loaded is formed therein.

In addition, a first conductive layer 72 made of, for example, a plating layer is formed in the center of the thickness of the insulator 70 along the radial direction, and the first conductive layer 72 has a substantially constant thickness. Is formed in a cylindrical shape or a strip shape along the. The tip end of the insulator 70 is inserted into the sensor 20 together with the tubular portion 64 of the valve housing 60, and the base end is exposed to the inner peripheral surface of the convex connecting portion 76.

On the other hand, as shown in FIG. 1, on the outer peripheral side of the insulator 70, for example, a cover member 82 formed in a cylindrical shape from a metal material is attached so as to cover the insulator 70. Corresponds to the shape of the valve housing 60, and is formed such that the diameter of the base end side (direction of arrow A) is expanded so as to cover the cylindrical portion 64 and the first flange portion 62. A holding portion 80 that holds the outer peripheral surface of the sensor 20 on the base end side is formed at the tip of the cover member 82.

As shown in FIGS. 1 and 2, the second signal transmission member 68 is fixed to the bobbin 30 in the vicinity of the substantially central portion along the axial direction thereof. As shown in FIGS. 2, 3A, and 3B, the second signal transmission member 68 includes a plate-shaped circuit member 100, a ground member 110 that houses the circuit member 100, and an insulating member 120 that covers the ground member 110. Have.

The circuit member 100 includes a circuit-side insulator 102 extending in the axial direction of the second signal transmission member 68 (directions of arrows A and B), and a second conductive layer 104 formed on the circuit-side insulator 102. The circuit-side insulator 102 is formed of, for example, a resin material such as a heat-resistant resin, has an insulator tip portion 102 a facing the convex connection portion 76 on the tip portion 106 side of the circuit member 100, and has a circuit member 100. Has an insulator base end portion 102b to be inserted into the substrate 50 on the base end portion 108 side. The second conductive layer 104 is formed of, for example, a plating layer, and has a substantially constant thickness over a part of the surface or the entire surface of the circuit-side insulator 102 so as to extend from the front end portion 106 to the base end portion 108. cover. A conductive layer front end portion 104a is formed on the surface of the front end portion 106, and a conductive layer base end portion 104b is formed on the peripheral surface of the base end portion 108. 2 and 3A, the second conductive layer 104 that covers a part of the surface of the circuit-side insulator 102 (the outer radial surface and the front end surface of the fuel injection valve 10) is shown. The second conductive layer 104 may be formed inside instead of on the surface of the circuit-side insulator 102.

The ground member 110 includes a ground side insulator 112 that houses the circuit member 100, and a shield layer 114 formed on the ground side insulator 112. The ground-side insulator 112 is formed of, for example, a resin material such as heat-resistant resin, and has a through hole 110a formed in parallel with the axial direction of the second signal transmission member 68 (arrow A, B direction). The shape of the through hole 110a on the inner peripheral side substantially matches the outer peripheral shape of the circuit member 100. The circuit member 100 is inserted into the through hole 110a from the base end portion 108 side, and is arranged from the tip side (arrow B direction) of the through hole 110a toward the base end side (arrow A direction).

Furthermore, the ground-side insulator 112 has an extending portion 116 that extends along the circumferential direction of the inner peripheral surface of the holder 32. The extending portion 116 has a ground connection portion 118 on a part of the tip side (arrow B direction).

The shield layer 114 is formed of, for example, a plated layer and covers the surface of the ground side insulator 112. As shown in FIG. 3A, the shield layer 114 may be formed on the entire surface excluding the tip side surface (excluding the ground connection portion 118) and the base end side surface, or the entire surface of the ground side insulator 112 ( It may be formed in the extending portion 116). On the other hand, since the shield layer 114 needs to be insulated from the second conductive layer 104, it is not formed around the opening of the through hole 110a. The shield layer 114 may be formed inside instead of the surface of the ground side insulator 112.

As shown in FIG. 4, a ground hole 132 is formed in the first flange portion 62, and the annular brass 130 is press-fitted into the ground hole 132 in advance. The ground connection 118 is inserted into the brass 130, and the shield layer 114 formed on the ground connection 118 and the brass 130 are electrically connected by soldering. With such a configuration, the shield layer 114 is electrically connected to the housing 60 via the first flange portion 62 and grounded.

As shown in FIGS. 2 and 3B, the insulating member 120 is formed of, for example, a resin material such as a heat resistant resin, and is formed on the outer peripheral surface of the ground member 110. On the tip end side of the insulating member 120, a concave connecting portion 122 is formed which protrudes in a radial inward direction orthogonal to the axis. The concave connecting portion 122 is formed so as to face the base end of the first signal transmitting member 66, and has a concave portion 124 into which the convex connecting portion 76 of the first signal transmitting member 66 can be inserted. The recessed portion 124 opens toward the first signal transmission member 66 side (direction of arrow B), and the tip end portion 106 of the circuit member 100 is arranged at the bottom portion of the recessed portion 124. The conductive layer tip portion 104a is exposed on the tip side (direction of arrow A). With the convex connecting portion 76 inserted in the concave portion 124, clearances C are formed at predetermined intervals along the axial direction (arrows A and B directions).

The convex connecting portion 76 of the first signal transmitting member 66 is inserted into the concave portion 124 of the concave connecting portion 122, and the conductive layer tip portion 104a exposed in the concave portion 124 and the first conductive layer 72 of the first signal transmitting member 66 are separated from each other. It is electrically connected by the solder 78. In this way, the first signal transmitting member 66 and the second signal transmitting member 68 are electrically connected.

On the other hand, the base end 108 of the circuit member 100 from which the conductive layer base end 104b is exposed is inserted into a connection hole (not shown) of the substrate 50 in the amplification member 48 and electrically connected by soldering or the like. In this way, the second signal transmission member 68 and the amplification member 48 are electrically connected.

As a result, the sensor 20, the signal terminal 22, and the power supply terminal 52 are electrically connected to each other via the first and second signal transmission members 66 and 68.

The fuel injection valve 10 with the in-cylinder pressure sensor according to the embodiment of the present invention is basically configured as described above. Next, the case where the signal transmission unit 24 is assembled will be described.

First, as shown in FIG. 3A, the circuit member 100 is inserted into the through hole 110 a of the ground member 110. Further, as shown in FIG. 3B, the ground member 110 is covered with the insulating member 120.

Next, as shown in FIG. 4, the ground connection portion 118 having the shield layer 114 formed therein is inserted into the brass 130 press-fitted into the ground hole 132 of the first flange portion 62. After the insertion, the shield layer 114 formed on the ground connection portion 118 and the brass 130 are connected by solder.

Further, the ground connection portion 118 is inserted into the ground hole 132 of the first flange portion 62. At this time, at the same time, the convex connecting portion 76 of the first signal transmitting member 66 is inserted into the concave portion 124 of the second signal transmitting member 68 forming the signal transmitting portion 24, and the circuit of the second signal transmitting member 68 is formed. The base end 108 of the member 100 is inserted into the connection hole (not shown) of the amplification member 48. In addition, in this case, the solder 78 is preliminarily loaded in the storage portion 76 a of the convex connection portion 76.

Next, by heating the first signal transmitting member 66, the second signal transmitting member 68, and the amplifying member 48 from the outside of the signal transmitting unit 24 by, for example, a heating device (not shown) in a state where they are inserted into each other and temporarily assembled, The solder 78 melts to electrically connect the first conductive layer 72 of the convex connection portion 76 and the conductive layer tip portion 104a of the second conductive layer 104, and the conductive layer base end portion of the second conductive layer 104. 104b and the substrate 50 of the amplification member 48 are electrically connected.

At this time, even when the first and second signal transmitting members 66 and 68 are thermally expanded under the heating action of a heating device (not shown), the shaft is provided between the convex connecting portion 76 and the conductive layer tip portion 104a. Since the clearance C is provided along the direction, contact is avoided even when they are deformed in a direction approaching each other due to the thermal expansion. Therefore, occurrence of stress that may be caused when the first signal transmitting member 66 and the second signal transmitting member 68 contact each other is suppressed.

The clearance C is, for example, based on the amount of heat given by the heating device and the amount of thermal expansion of the first and second signal transmission members 66 and 68 when heated by the amount of heat, so that the clearance C does not come into contact with each other. The distance to is preset.

In the procedure described above, the first signal transmitting member 66, the second signal transmitting member 68, and the amplifying member 48 are inserted into each other and temporarily assembled, and then heated by the heating device, so that the first signal transmitting member 66 is heated. And the second signal transmitting member 68 are electrically connected, and at the same time, the second signal transmitting member 68 and the amplifying member 48 are electrically connected. Separately from this, first, the second signal transmitting member 68 and the amplifying member 48 may be electrically connected, and then the first signal transmitting member 66 and the second signal transmitting member 68 may be electrically connected. Good.

Next, the operation of the fuel injection valve 10 in which the signal transmission unit 24 is assembled as described above will be described.

During operation of an internal combustion engine (not shown), a coil 28 is energized by energizing the coil 28 from the drive terminal 38 of the fuel injection valve 10 by a control signal from the electronic control unit, and the valve body of the fuel injection section 18 is opened. The high-pressure fuel that is valved and supplied to the supply passage of the fuel supply unit 16 is directly injected into the combustion chamber of the internal combustion engine through the fuel injection unit 18. At this time, when the pressure in the combustion chamber (cylinder pressure) is applied to the sensor 20, the piezoelectric element generates a voltage corresponding to the pressure and outputs the voltage as an output signal.

This detection signal is output to the amplifying member 48 via the sensor 20, the first signal transmitting member 66, and the second signal transmitting member 68, and after the detection signal is amplified in the amplifying member 48, it is passed through the signal terminal 22. Output to the electronic control unit.

Then, for example, in the electronic control unit, the pressure of the combustion chamber is calculated from the amplified output signal and is used for combustion control and the like based on the pressure.

The shield layer 114 not only reduces the stray capacitance between the second conductive layer 104 and the coil 28, but also bypasses the current due to various noises to the housing 60. Therefore, the sensor detection signal output from the sensor 20 is transmitted to the signal terminal 22 without being affected by noise or the like.

As described above, the fuel injection valve 10 according to the present embodiment is mounted in the housing (valve housing) 60 having the valve body inside which is arranged in the combustion chamber and switches the fuel injection state, and at the tip of the housing 60. Connected to the sensor 20, the first signal transmitting member 66 connected to the sensor 20, the first signal transmitting member 66, and the signal terminal 22 for outputting a signal based on the in-cylinder pressure to the outside. The signal transmission unit 24 having the second signal transmission member 68. The second signal transmission member 68 includes a second conductive layer (conductor) 104, a circuit-side insulator (insulator) 102, a ground-side insulator (insulator) 112, and an insulating member 120. At the end of 102, a second conductive layer 104 and a conductive layer front end (first conductive portion) 104a where the second conductive layer 104 is exposed to the outside and is electrically connected to the first signal transmission member 66 are provided. A conductive layer base end portion (second conductive portion) 104b exposed to the outside and electrically connected to the signal terminal 22 is provided. Further, a shield layer 114 that covers the second conductive layer 104 is formed on the ground-side insulator 112.

According to the fuel injection valve 10 of the present invention, the second conductive layer 104 that transmits the sensor detection signal is covered with the shield layer 114. Therefore, between the coil 28 that drives the fuel injection valve 10 and the second conductive layer 104. The stray capacitance of can be reduced. Then, even when a voltage is applied to the coil 28, noise is less likely to occur in the sensor detection signal flowing through the second conductive layer 104 near the coil 28. Therefore, the accuracy of the sensor detection value can be improved. As a result, the resolution of combustion control is improved and fuel economy is improved.

Further, the shield layer 114 is grounded. According to this configuration, the shield layer 114 is grounded, so that the influence of various external noises can be reduced. Therefore, the accuracy of the sensor detection value can be further improved. As a result, the resolution of combustion control is further improved, and fuel economy is further improved.

The fuel injection valve with an in-cylinder pressure sensor according to the present invention is not limited to the above-described embodiment, and can of course have various configurations without departing from the gist of the present invention.

10... Fuel injection valve with cylinder pressure sensor 12... Housing 20... Sensor 22... Signal terminal 24... Signal transmission part 66... First signal transmission member 68... Second signal transmission member
104... Second conductive layer (conductor)
104a... Conductive layer tip (first conductive portion)
104b... Conductive layer base end portion (second conductive portion)
112... Ground-side insulator 114... Shield layer

Claims (2)

In a fuel injection valve with an in-cylinder pressure sensor having a sensor for detecting the in-cylinder pressure in the combustion chamber at the end of the fuel injection valve that directly injects fuel into the combustion chamber of the internal combustion engine,
A valve housing disposed inside the combustion chamber, the valve housing having therein a valve body for switching the injection state of the fuel;
A solenoid portion having a coil for driving the valve body,
A sensor mounted on the tip of the valve housing,
A cover member formed by expanding the diameter of the tubular portion in accordance with the shape of the valve housing,
A holder provided on the outer peripheral side of the coil,
A first signal transmitting member arranged in the cover member and connected to the sensor, and a signal arranged in the solenoid portion and connected to the first signal transmitting member and outputting a signal based on the cylinder pressure to the outside. And a second signal transmission member connected to the signal terminal,
Equipped with
The second signal transmitting member disposed in the holder, the conductor being connected to the first signal transmitting member and transmitting a signal based on the in-cylinder pressure; an insulator accommodating the conductor; A resin member covering the insulator, and a first conductive portion at the end of the insulator, the conductor being exposed to the outside and electrically connected to the first signal transmission member; And a second conductive portion having a conductor exposed to the outside and electrically connected to the signal terminal,
The insulator is formed with a shield layer covering the conductor,
The in-cylinder pressure sensor-equipped fuel injection valve, wherein the shield layer is covered with the resin member. The fuel injection valve with a cylinder pressure sensor according to claim 1,
A fuel injection valve with an in-cylinder pressure sensor, wherein the shield layer is grounded.

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