JP2504249B2 - Butterfly type supercharger - Google Patents

Description

The present invention relates to a supercharger used for an automobile engine or the like.

[Conventional technology]

Examples of conventional superchargers used in engines for automobiles include various types as shown in FIGS. 18, 19, 20, and 21, and those shown in FIG. 18 are roots type superchargers. Denotes a housing, 2 denotes a rotary piston, and two eyebrow type rotors 3 and 4 rotate as indicated by thin arrows. FIG. 19 shows a sliding vane type supercharger, 1 is a housing, 2 is a rotor, 3 is a vane, 4 is a pin, and 5 is an outlet edge A. FIG. 20 shows a spiral type supercharger, 1 is an air inlet to the second working chamber, 2 is a drive shaft, 3 is a displacer guide, 4 is an air inlet to the first working chamber, and 5 is a housing. ,
6 is a displacer. 21 shows a rotary piston supercharger, 1 is a housing, 2 is an out rotor, 3 is an inner rotor, 4 is an outlet edge A, 5 is a chamber III, 6 is a chamber II, 7 is a chamber I, and the rotor is a rotor. Rotates as shown by the thin arrow. In each of the drawings, the thick arrow shown in the drawing indicates the flow of air. Air is taken in from the intake port of the engine, discharged from the discharge port, and connected to the intake pipe.

[Problems to be Solved by the Invention]

In the conventional supercharger described above, the intake amount of air during the rotation of the rotary shaft 1 (in the case of the spiral type shown in FIG. 20, one cycle of the center of gravity) is taken as the charge amount, and the volume of the entire mechanism is set. The charge amount / volume ratio is approximately 50% when the (root-type shown in FIG. 18 is the volume of the eyebrows type part) is the volume, and therefore the charge amount is proportional to the volume ratio. It is not large, and there is a problem that the device becomes large in order to increase its capacity. In addition, some of them have complicated structures and are not easy to manufacture.

In view of the above problems, it is an object of the present invention to obtain a supercharger having a simple structure, a high charge amount / volume ratio, a small size, and a large capacity.

[Means for solving the problem]

In order to achieve the above object, in the present invention, an outer shell that surrounds a rotating body, and an appropriate number of sets of suction ports and discharge ports that are arranged at appropriate intervals in the circumferential direction of the outer shell, A space which is arranged at an appropriate interval in the circumferential direction in the rotating body and communicates with the suction port and the discharge port, a partition wall body which divides the space arranged in the space, and a planetary gear of the rotating body. The rotation center of rotation is fixed, and a planetary gear mechanism in which the gear fixed to the outer shell and the planetary gear mesh with each other are provided, and the movement is performed in the circumferential direction with respect to the rotation center of rotation of the planetary gear. The volume is increased at a position where the space communicates with the suction port, and the volume contracts at a position where the space communicates with the discharge port. A grasshopper characterized by being provided to To provide a line type supercharger.

In the planetary gear speed change mechanism, an internal gear type stationary gear provided in the outer shell and a moving gear that is a small gear are meshed by a moving gear arm attached to the main rotating shaft, When the main rotation shaft rotates, the moving gear revolves around the main rotation shaft while meshing with the stationary gear and rotates about its axis, and the moving gear has a predetermined center from its center. A pin is projected upright at a position separated by a distance, a sliding sleeve is picked up from the pin, and a runners arm is slidably penetrated with respect to the sliding sleeve, and the runners arm is attached to the sub-rotating shaft. The moving gear is provided in the outer shell by being directly connected and the sub-rotating shaft is directly connected to the partition body. It is preferable that the partition member is reciprocated by rolling on the stationery Li gear that.

[Work]

When the main rotating shaft rotates, the rotating body directly connected to the main rotating shaft rotates at the same constant speed as the main rotating shaft. Further, rotation is transmitted from the main rotary shaft to the sub rotary shaft through the moving gear arm, the moving gear, the pin, the sliding sleeve, and the runners arm, and the sub rotary shaft performs a non-constant speed motion,
The partition body directly connected to this performs a butterfly-type swinging motion that reciprocally rotates within a predetermined angle range while rotating with the rotating body, whereby the space (chamber) sandwiched between the rotating body and the partition body while rotating. Influx of fluid by utilizing the increase or decrease of
Discharge.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings. 1st to 11th
The first embodiment is shown in the figure. FIG. 1 is a vertical sectional view showing an example of a butterfly type supercharger 30 according to the present invention,
Figure 2 is an external view. 3 is a sectional view taken along the line III-III in FIG. 1, and FIG. 4 is a sectional view taken along the line IV-IV in FIG. An outer shell (hereinafter referred to as a housing) 10 is provided with a suction port 6 and a discharge port 8 for the fluid from the outside, and the main part is housed inside. The main part inside this is a partition wall (hereinafter referred to as runner's wing) 1 and a rotating body (hereinafter referred to as Chaser's wing) 2
Chaser's wing 2 composed of two types of blades (see Figs. 3 and 4) is directly driven by a main rotating shaft 3 driven by an engine and rotates at a constant speed equal to that of the main rotating shaft.
The runners wing 1 is driven by the sub-rotating shaft 4 via the speed change mechanism (mechanical device) 20 driven by the main rotating shaft 3, and is reciprocally rotated within a predetermined angle range around the shaft center (butterfly motion). Performs inconstant rotational motion with. This action creates a volume change in the chamber 9 which causes fluid to be drawn into the chamber 9 when the gap between the two wings opens and expelled out of the chamber 9 when closed. The structural functions of each part of the device will be described in detail below with reference to the drawings.

As shown in FIG. 3, the wings of the runners wing 1 and the chaser wings 2 are alternately arranged, and these two kinds of wings are combined to form a pair of structures. Also, Laners Wing 1 can move freely within a range of 22.5 degrees with respect to Chaser's Wing 2. This figure shows the details of the inlet of the fluid F to the supercharger, and the intakes of the fluid F communicate with the inlet 6 to the supercharger housing 10 to take in the fluid between the blades. A port 5 is provided, and the opening angle of the intake port 5 is approximately equal to the angle (45 degrees) of the solid portion of the chaser wing 2 and is about 45 degrees.

FIG. 4 shows details of the outlet of the fluid F from the supercharger. There are provided four discharge ports 7 at equal intervals in order to discharge the fluid F from between the blades, and the opening angle is about 22.5 degrees. The fluid flowing out of the discharge port 7 is discharged from the discharge port 8 of the supercharger housing 10 to the outside of the machine.

The structure of the Laners wing 1 is shown in FIGS. Fifth
The figure is the vertical cross-sectional view, and the V-V vertical cross-sectional view of FIG.
FIG. 6 is a view taken along line VI-VI in FIG. 5, and is composed of four blades arranged at equal intervals.
It is 22.5 degrees (π / 8). Chaser's wing 2 is shown in FIGS. FIG. 7 is its sectional view, and
8 is a sectional view taken along line VII-VII in FIG. 8, and FIG. 8 is taken along line VIII-VIII in FIG.
In the view, it consists of four blades arranged at equal intervals, and each blade has a solid part angle of 45 degrees (π / 4). Hereinafter, the mechanism that combines the angles of both wings will be referred to as a four-wing supercharger. This combination allows the Laners Wing 1 to move freely within a range of 22.5 degrees with respect to the Chaser's Wing 2 (see Figures 3 and 4).

FIG. 9 is a cross-sectional view taken along the line IX-IX in FIG. 1 and shows a plan view of the speed change mechanism 20 provided between the main rotary shaft 3 and the sub rotary shaft 4. A longitudinal sectional view of this transmission mechanism is shown in FIG. housing
An internal gear type stationary gear 21 having an inner diameter D is provided along the inner wall of 10, and the stationary gear 21 is mainly provided with a moving gear 23, which is a small gear (pinion gear) having an outer diameter d, which meshes with the stationary gear 21. A moving gear arm attached to the rotary shaft 3 (this is a chaser wing 2 as described later).
The rotating gear 24, which rotates in synchronism with the main rotation shaft 3, rotates around the main rotation shaft axis O ₀ while meshing with the stationary gear 21 when the main rotation shaft 3 rotates. Rotate around the axis O ₁ . Moving gear 23
In terms of the mechanism, one may be provided, but in this case, two are provided in order to improve the rotational balance. Each moving gear 23 has a pin 25 at a position O ₂ separated from the center O ₁ thereof by a predetermined distance r.
Is erected so as to stand upright, a sliding sleeve 26 is attached to the pin 25, and the sliding sleeve 26 is shared by the runners arms 27, and both slide with each other. The runners arm 27 is connected to the auxiliary rotary shaft 4, and the auxiliary rotary shaft 4 is connected to the runners wing 1 (see FIG. 1) and drives this.

In the four-blade supercharger having the above structure, the diameter d of the moving gear 23 is equal to the diameter D of the stationary gear 21.
It is a quarter (1/4). Moving gear 23
The relative movement of the moving gear arm 24 and the Lanners arm 27, where r is the distance between the center O ₁ of the pin and the center O _{2 of the} pin 25, that is, the relative movement of the main rotary shaft 3 and the sub rotary shaft 4. An example of such movement is shown.

FIG. 10 (a) schematically shows the relative positions of the elements of the transmission mechanism shown in FIG. 9 during operation. The moving gear arm 24 rotating together with the main rotating shaft 3 is used as a starting point, and the auxiliary rotation is performed. A case in which the narrow angle with the runners arm 27 that rotates the shaft 4, that is, the opening angle α of both arms swings negatively to the maximum and becomes −α, the moving gear arm 24 starts from this position, and its main rotation axis The rotation angle of 3 indicates the case of zero. FIG. 10 (b) shows the case where the rotation angle of the main rotation shaft 3, that is, the rotation angle of the moving gear arm 24 is 45 °, in which case the runners arm 27 swings to the maximum and the opening angle of both arms becomes + α. There is. Then, Figure 10 (c)
Then, if the rotation angle of the moving gear arm 24 is 90 °,
At this time, the runner's arm 27 again swings to the maximum negative, and the narrow angle becomes -α, and the same state as in the initial FIG. 10 (a) is obtained. The same operation is repeated thereafter, and while the moving gear arm 24, that is, the main rotating shaft 3 makes one round of the circumference, the Lanners arm 27, that is, the sub rotating shaft 4, reciprocates at an angle within a certain range. While making a butterfly movement, it goes around the circumference. At this time, by adjusting the distance r between the center O ₁ of the moving gear 23 and the center O ₂ of the pin 25, the value of the narrow angle α increases or decreases, and the value of this α determines the degree of deflection of the butterfly motion. The diameter of the moving gear 23 is d
Then, when r = 0, there is no shake, and when r = d / 2, the shake is maximum. By adjusting the position of this pin 25, the clearance between the two blades becomes zero when the main rotation axis is 0 degree, the clearance is 22.5 degrees (maximum) at the main rotation axis 45 degrees, and the main rotation axis At 90 degrees, the gap can be reduced to zero again. In the four-blade supercharger shown in this embodiment, the position of the pin 25 projecting from the moving gear 23 is arranged at a point separated from the center O ₁ of the moving gear 23 by 0.57 × [d / 2].

The flow of the fluid F through the operation of the four-blade spark charger having the above structure will be described below. In Fig. 11, the main rotary shaft 3, that is, the chaser wing 2 is 90 degrees from 0 degree.
The movement of the chaser's wing 2 and the runner's wing 1 during the rotation up to a degree, and the accompanying state of the fluid F coming in and out are shown. The intake port 5 and the discharge port 7 are actually divided into upper and lower parts as shown in FIG. 1, but in this figure, they are drawn on the same plane for the sake of explanation. When the main rotation axis is 0 degree, as shown in FIG. 11 (a),
Chaser's wing 2a and Lanner's wing 1a are in contact. At this time, the space between the runners wing 1a and the chaser wing 2b opens to a maximum of 22.5 degrees, and the fluid that has flowed into the inter-blade chamber 9a from the intake port 5a.
F _A is full. When the main rotation shaft 3 rotates from this state, the runners wing 1a rotates faster than the chaser wing 2a accordingly. Next, when the main rotation shaft rotates 16 degrees, the fluid F _A has two blade runners wings 1a, chaser wings 2b and partition walls as shown in FIG. 11 (b).
It is stored between W _a and at the same time, the fluid F _B is sucked between the wings of the Laners wing 1a and the chaser wing 2a. When the main rotation shaft rotates 37 degrees, the fluid F _A is discharged to the discharge port 7a as shown in FIG. 11 (c). The volume of the fluid F _{A at} this time is about 0.04 V {V = ₁ l (R ₁ ²
-R a ₂ ^2)} (found). Here, R ₁ is the maximum radius of the chaser wing 2 or the runners wing 1, R ₂ is the minimum radius thereof, and l is the axial length of the main axis of the blade.
Then, as the main rotation shaft rotates 48 degrees, 56 degrees, 68 degrees, and 90 degrees (Figs. 11 (d), (e), (f), and (g)), the fluid F _B is discharged to the discharge port 7a. The volume of the fluid F _{B at} this time is about 0.06 V (measured value). By rotating the main rotating shaft 90 degrees in this way, there are four inlet ports 5 and four discharge ports 7 (5a, 5b, 5c, 5d, 7a, 7b, 7c, 7d). Is rotated 90 degrees, a fluid of 4 × (0.04 + 0.06) V = 0.4V is discharged. Furthermore, if the main rotation shaft makes one rotation, 4 ×
0.4V = 1.6V, that is, 160% of fluid is discharged as the charge amount / volume ratio.

Due to the above operation, according to the present embodiment, the charge amount / volume ratio of the conventional supercharger is about 50%, but it is about 160%, which is more than the conventional product. Fluid F sent from the outlet to the outlet
Can be made larger than that of the supercharger. Therefore, it is possible to make a small-sized and large-capacity supercharger. In addition, the sealability is higher than that of the conventional product, and the structure is simple. In addition, the amount of charge can be changed by a simple adjustment (by changing the distance r between the center O _{1 of the} moving gear and the center O ₂ of the pin).

Next, FIG. 12 shows a second embodiment. This embodiment is the first
The structure and the principle are the same as those of the embodiment, but the inflow and outflow directions of the fluid are parallel to the main rotation axis, and the sectional view taken along the line AA of FIG. 12 (a) (FIG. 12 (b )) And BB sectional view (FIG. 12 (c)), holes (intake port 5 and discharge port 7) are appropriately formed on the inflow and outflow surfaces. The fluid F flows like the arrow shown in FIG.

Next, a third embodiment is shown in FIG. In this case, the Laners wing 1 and the chaser wing 2 do not interpose like the above-mentioned structure, and the chaser wing 2 has a cylinder structure. The structure is simple and easy to make with Laners Wing 1. In this case, like the fluid introduced in the second embodiment, the fluid is suitable to flow in and out in the axial direction. This structure is also mechanically stable.

Next, a fourth embodiment is shown in FIG. This is a three-blade supercharger in which the angles of each of the three blades of the Laners Wing 1 and the Chaser Wing 2 are set to 30 degrees and 60 degrees. The charge volume ratio in this case is the same as that of the 4-blade supercharger. In this case, the structure of the speed change mechanism 20 and each blade and its intake port and discharge port is basically the same as that of the first embodiment.

Next, a fifth embodiment is shown in FIGS. In this case the 15th
As shown in the figure, each of the runners wing 1 and the chaser wing 2 is composed of two wings. This is called a 2-wing supercharger. In the case of these two wings, as shown in Fig. 16, the chaser's wing 2 has an angle of 68 degrees and the runners' wing has an angle of 68 degrees, and the narrow angle by both wings is 45 degrees. Is good. Also,
In this case, if the stationary gear 21 as shown in the first embodiment is of the internal gear type, the moving gear 23 interferes with the elements in the apparatus, so that the transmission mechanism 20 is shown in FIG. The stationary gear 21 is of an external gear type, and a timing belt 22 is stretched between the stationary gear 21 and the moving gear 23 to perform transmission. The other mechanism is basically the same as that of the first embodiment, and each element having the same function is denoted by the same reference numeral as in FIG. 1 and its detailed description is omitted. In this case, as shown in the drawing, the pin 25 projecting from the moving gear 23 and the sliding sleeve 26 and the sliding runners arm 27 are slightly shifted in phase of the rotation angle without being matched with each other as in the case of FIG. Even in this structure, the basics of the relative movements of the main and sub rotary shafts with respect to the swing motion of the runners arm (butterfly motion of the runners wing) remain unchanged.

Although various embodiments have been described above, generally, the charge amount / volume ratio increases as the number of blades increases, and the outline is theoretically about 1 time for two blades and 3 blades. About 1.5
It is doubled with 4 blades and 4 times with 8 blades. However, if the number of blades is increased, a surge phenomenon tends to occur. Therefore, in order to avoid this, it is generally good to increase the number of blades with a low rotational speed and decrease the number of high rotational speeds. Further, the blade angle and the like are not limited to the angles shown in the above embodiment, and can be freely selected.

〔The invention's effect〕

 The following effects are achieved by implementing the present invention.

(1) Since the charge amount (volume of fluid delivered per revolution) is larger than the volume of the supercharger as compared with the conventional product, a small-sized and large-capacity supercharger can be obtained.

(2) Higher sealing performance than conventional products.

(3) The structure is simple, and the charge amount can be changed by simple adjustment.

[Brief description of drawings]

1 to 8 show a first embodiment, FIG. 1 is a vertical sectional view of a butterfly type supercharger, FIG. 2 is an external view thereof, and FIG. 3 is a sectional view taken along line III-III of FIG. 4 is a sectional view taken along the line IV-IV of FIG. 1, FIG. 5 is a longitudinal sectional view of the runners wing, FIG. 6 is a view taken along line VI-VI of FIG. 5, and FIG. 7 is a longitudinal section of the chaser wing. Fig.8, Fig.8 is VIII-VI of Fig.7
II view, FIG. 9 is a sectional view taken along line IX-IX of FIG. 1, a plan view of the speed change mechanism, and FIG. 10 show operating states according to rotation angles of respective elements of the speed change mechanism, and FIG. ) Is the case where the rotation angle of the main rotation axis is zero, and Fig. 10 (b) is the same as above when the rotation angle is 45 degrees.
FIG. 10 (c) shows the same case where the angle is 90 degrees. FIG. 11 shows the operation of each wing (wing) according to the rotation of the main rotating shaft of the supercharger, and FIG. 11 (a), (b),
Figures (c), (d), (e), (f), and (g) show that the rotation angles of the main rotation axis are 0 degree, 16 degrees, 37 degrees, 48 degrees, 56 degrees,
The case of 68 degrees and 90 degrees is shown. FIG. 12 shows a second embodiment, (a) is a longitudinal sectional view thereof, (b) is a sectional view taken along line AA of (a), and (c) is a sectional view taken along line BB of (a). Indicates. Thirteenth
The figure shows a cross-sectional view of the wing portion of the third embodiment, FIG. 14 shows the wing of the fourth embodiment, (a) is a runner's wing, and (b) is a chaser wing. 15 to 17 show the fifth embodiment, FIG. 15 (a) shows the runners wing, (b) shows the chaser wing, and FIG. 16 shows a preferable shape in the case of two blades. The figure shows a plan view of the speed change mechanism. (A) figure is the longitudinal cross-sectional view, (b) figure is C of (a) figure
-C view is shown. 18 to 21 show examples of conventional superchargers. Fig. 18 shows a roots type, Fig. 19 shows a sliding vane type, Fig. 20 shows a spiral type, and Fig. 21 shows a rotary piston type supercharger. . 1 ... Partition body (laners wing), 2 ... Rotating body (chaser wing), 3 ... Main rotary shaft, 4 ... Sub rotary shaft, 6 ... Suction port, 8 ... Discharge port, 10 ... … Outer shell (housing), 21… Stationary gear, 23… Moving gear, 24… Moving gear arm, 25… Pin, 26… Sliding sleeve, 27… Lanners arm.

Claims (2)

(57) [Claims] 1. An outer shell surrounding a rotating body, a proper number of inlets and outlets arranged at appropriate intervals in the circumferential direction of the outer shell, and an appropriate circumference in the rotating body. A space arranged at a distance and communicating with the suction port and the discharge port, a partition body dividing the space arranged in the space, and a rotation center of rotation of the planetary gear fixed to the rotating body, A gear fixed to the outer shell and a planetary gear mechanism in which the planetary gear meshes with each other are provided, and the divided space communicates with the suction port by utilizing the circumferential motion of the planetary gear with respect to the rotation center. The volume is increased at the position, and the partition is provided so as to reciprocate relative to the rotation direction of the rotating body so that the volume contracts at the position communicating with the discharge port. Characteristic butterfly type supercharger. 2. In the planetary gear speed change mechanism, an internal gear type stationary gear provided on the outer shell and a moving gear, which is a small gear, mesh with each other by a moving gear arm attached to the main rotary shaft. When the main rotation shaft rotates, the moving gear revolves around the main rotation shaft while meshing with the stationary gear and rotates about its axis, and the moving gear has its center. A pin is erected at a position more distant by a predetermined distance, a sliding sleeve is attached to the pin, and the runners arm penetrates the sliding sleeve in a mutually slidable manner. The moving gear is directly connected to the shaft, and the sub-rotating shaft is directly connected to the partition body, so that the moving gear is connected to the outer shell. Butterfly type supercharger according to claim 1, characterized in that the partition body is configured to reciprocate by rolling on the Institut conditioner Li gear provided.