CN201187373Y

CN201187373Y - Locomotive exhaust gas recycling and purifying structure

Info

Publication number: CN201187373Y
Application number: CNU2007203091370U
Authority: CN
Inventors: 林静华
Original assignee: CPI Motor Co Ltd
Current assignee: CPI Motor Co Ltd
Priority date: 2007-12-27
Filing date: 2007-12-27
Publication date: 2009-01-28
Anticipated expiration: 2017-12-27

Abstract

A kind of locomotive exhaust gas recycles the purifying structure, there are two vent holes and covers a gas control valve device on a engine body, it is through the installation of the gas control valve device, make the inside of the engine body increase a gas passage, when the locomotive exhaust gas is discharged from the exhaust pipe of the engine body with the positive pressure, some can lead back through the gas control valve device inlet port communicating with its vent hole, lead back through the gas control valve device, and by a piston device in the gas control valve device, control a few waste gases to pass through the inside of the gas control valve device, the waste gas is led back to the vent hole of the engine body finally, and lead back to the vent hole and communicate with intake pipe connecting carburetor, the waste gas will be sucked back to the engine interior again by the intake pipe with the negative pressure; thereby achieving the effect of controlling the recycling and purification of the locomotive exhaust gas to the main body.

Description

The locomotive waste gas treatment facilities that is recycled

Technical field

The utility model relates to the locomotive engine field, refers to a kind of locomotive waste gas treatment facilities that is recycled especially.

Background technique

The modern means of communication, the general problem that the discharging large quantity of exhaust gas is all arranged, air ambient is caused very big threat, and locomotive is commonly the employed traffic tool of working, and its usage quantity has the trend that day by day increases, that is need be its exhaust gas discharged, do further processing, just be enough to adapt to the trend of environmental protection, and show rare application creation now at the locomotive waste gas treatment, as starting point of the present utility model, develop the relevant apparatus that the locomotive waste gas treatment by this reason.

Known techniques also has with catalyst device handles NO in the locomotive waste gas _XThe composition of (nitrogen oxide); Or fall the mode of exhausting waste gas with motor and filtered, and the latter's application mode is comparatively common.

The utility model people is by the research of being engaged in association area for many years and manufacturing development experience, after design in detail and scrupulous assessment, creates a kind of comparatively simple and easy and have more the innovation structure of desirable practicability finally.

Summary of the invention

The purpose of this utility model is, a kind of locomotive waste gas treatment facilities that is recycled is provided, and to overcome the technological deficiency of drive mechanism, utilization simple principle and precise construction are led back utilization again with gas.

A kind of locomotive waste gas of the utility model treatment facilities that is recycled is characterized in that, comprises:

One engine body has a logical exhaust port that communicates with outlet pipe and a logical inlet hole that communicates with the suction tude of Carburetor on this engine body;

One gas control valve device, this gas control valve device is located at engine body one side, and this gas control valve device is provided with an air input part, an exhaust portion and a piston apparatus putting chamber, this air input part communicates with logical exhaust port on the engine body, this exhaust portion communicates with logical inlet hole on the engine body, and this piston apparatus holding part communicates with air input part and exhaust portion;

One piston apparatus, this piston apparatus comprises a piston only, an elastic element and a drag-line, piston only is provided with a conducting portion, piston apparatus is mounted in the piston apparatus putting chamber, and piston only be for can compeling block the elastic element that air input part communicates with exhaust portion by pushing up, and the piston only conducting portion aligns with air input part, exhaust portion with can making air input part and exhaust portion conducting.

Wherein, the conducting portion of this piston only is a ring groove.

Wherein, the conducting portion of this piston only is a through hole.

Wherein, this piston apparatus more is provided with one and sets firmly the spiral shell that plate and is used to guide drag-line and establish group, set firmly plate and be closed in the piston apparatus putting chamber, and spiral shell is established group and is fixed in and sets firmly on the plate.

Wherein, this piston apparatus putting chamber more is provided with two perforation of moving the required air pressure flowing space as piston only, and this two is bored a hole and communicate in the gas control valve device.

Wherein, this elastic element is a spring.

The role who plays the part of a gas valve by piston only, and piston only is that elastic element top is compeled to block air input part and communicated with exhaust portion, and when drag-line pulling piston only, piston only conducting portion alignment air input part and exhaust portion, make air input part and exhaust portion conducting and recycle purifying exhaust air, whether control gaseous circulates between inside configuration, forms a gas passageway.

The effect of contrast prior art: a kind of locomotive waste gas recycling treatment facilities is provided, the utlity model has following advantage:

One, the utility model can be controlled locomotive waste gas body by in the gas control valve device by easy structure, and forms an exhaust passageway with the vent (promptly logical exhaust port, logical inlet hole) of engine body; The utility model be the EGR technological applications on locomotive, it leads back waste gas, in addition mixed combustion again reduces the gaseous combustion amount, reduces toxic substance NO in the waste gas _XThe generation of (nitrogen oxide), the burden of reduction ambient air.

The technology that relevant the utility model adopted, means and effect thereof after lifting a preferred embodiments now and cooperating graphic being described in more detail in, are believed the above-mentioned purpose of the utility model, structure and feature, when can by one deeply and concrete understanding.

Description of drawings

Fig. 1: be schematic perspective view of the present utility model.

Fig. 2: be perspective exploded view of the present utility model.

Fig. 3: be the piston apparatus of gas control valve device illustrative view not.

Fig. 4: be the generalized section of gas control valve device.

Fig. 5: be the piston apparatus illustrative view of gas control valve device.

Fig. 6: be the generalized section of gas control valve device.

Embodiment

As shown in Figure 1, the locomotive waste gas of the present utility model treatment facilities that is recycled, it comprises an engine body 10 and a gas control valve device 20, and this gas control valve device 20 is incorporated into engine body 10 one sides, and it is provided with and sets firmly plate 34 thereon.

See also simultaneously shown in the STRUCTURE DECOMPOSITION figure of Fig. 2, this engine body 10 comprises:

Vent, this vent are divided into logical exhaust port 121 and logical inlet hole 122;

Please consult Fig. 2 and shown in Figure 3 simultaneously, wherein, this gas control valve device 20 comprises:

One air input part 21, this air input part 21 be also corresponding to the logical exhaust port 121 of engine body 10, and should logical exhaust port 121 and outlet pipe on the engine body 10 (not shown) that interlinks;

One exhaust portion 22, this exhaust portion 22 be also corresponding to the logical inlet hole 122 of engine body 10, and should logical inlet hole 122 with engine body 10 on be connected Carburetor the suction tude (not shown) that communicates;

One piston apparatus 30, this piston apparatus 30 comprises piston only 31, elastic element 32, spiral shell is established group 33, set firmly a plate 34 and a drag-line 35, wherein, this drag-line 35 is worn and is passed through through piston only 31, elastic element 32, spiral shell is established group 33 and is set firmly the inside center of plate 34, be stuck in piston only 31 front ends one groove by the sheathed pad 36 of drag-line 35 front ends, make drag-line 35 front ends form the holding effect, with piston only 31, elastic element 32, spiral shell is established group 33 and is set firmly plate 34 and connect into a piston apparatus 30, and sets firmly plate 34 by this piston apparatus 30 is fixedly arranged in the gas control valve device 20 piston apparatus putting chambers 23; Spiral shell is established group 33, and then the bolt group is in setting firmly on the plate 34, and the elastic element 32 when forming piston apparatus 30 starts is against body; And piston only 31 and spiral shell establish group 33 inside be one just can ccontaining drag-line 35 the space, partly established group 33 inner institutes by drag-line 35 and firmly reach locating effect by piston only 31 and spiral shell, more stable when making piston apparatus 30 starts.

Above-mentioned elastic element 32 is a spring.

Please consult Fig. 2 and figure simultaneously

, a piston apparatus putting chamber 23 its internal configurations one piston apparatus 30, this piston apparatus putting chamber 23 and with air input part 21 and exhaust portion 22 place's (as shown in Figure 6) that all communicates.

Consult shown in Figure 5, piston apparatus putting chamber 23 is provided with two perforation 371,372, and two perforation 371,372 are set as in gas control valve device 20 and communicate, with conducting piston only 31 both sides, the air pressure flowing space avoids causing pull of vacuum or compressed-air actuated resistance during as piston only 31 starts.

The above-mentioned locomotive waste gas treatment facilities that is recycled, wherein, cover a gas control valve device 20 on the engine body 10, and engine body 10 is provided with logical inlet hole 122 and logical exhaust port 121, this two vent all with the air input part 21 and exhaust portion 22 corresponding the communicating of gas control valve device 20 inside.

By above-mentioned described locomotive waste gas recycling treatment facilities, that is application surface of the present utility model is as follows:

As shown in Figures 3 and 4, Fig. 3 is that gas control valve device sectional drawing and Fig. 4 are the part of the A among Fig. 3 generalized section, it shows works as not actuator state of piston apparatus 30, if the waste gas that locomotive reclaims is again led back behind the logical exhaust port 121 (showing as Fig. 2) on the engine body 10, at first enter the air input part 21 of gas control valve device 20 inside, then come air input part 21 place that communicates with piston apparatus putting chamber 23, by stopping of piston only 31, gas just can't be by coming exhaust portion 22, and this control waste gas is by the pattern of normal exhaust discharge of pipes; As Fig. 5 and shown in Figure 6, Fig. 5 is that gas control valve device sectional drawing and Fig. 6 are the B partial section view schematic representation among Fig. 5, it shows that working as drag-line 35 is pulled, and make piston apparatus 30 starts, during its piston only 31 reaches, be to make air input part 21 and exhaust portion 22 conductings, if gas is come air input part 21 place that communicates with piston apparatus putting chamber 23, establish a conducting portion (this conducting portion can be a diameter less ring groove 311 or through hole) by the middle section of piston only 31 and form path (as Fig. 5), please consult Fig. 2 simultaneously, gas just can be smoothly by and enter into engine body 10 logical inlet holes 122 through exhaust portion 22, and suck recycling once more and purify by the suction tude that connects Carburetor on the engine body 10, reach the locomotive waste gas purifying functions that is recycled.In this, the utility model is played the part of the role of a gas valve by a piston apparatus 30, and whether the circulation of control gaseous.

Claims

1. A locomotive exhaust gas recycling and purification structure, characterized in that it comprises:

An engine main body, which has a ventilation hole communicated with the exhaust pipe and a ventilation hole communicated with the intake pipe of the carburetor on the engine body;

A gas control valve device, the gas control valve device is located on one side of the engine main body, and the gas control valve device is provided with an air intake part, an exhaust part and a piston device accommodating chamber, the air intake part and the engine main body The exhaust hole is communicated, the exhaust portion is communicated with the air intake hole on the engine main body, and the piston device accommodating portion is communicated with the air intake portion and the exhaust portion;

A piston device, the piston device includes a piston body, an elastic element and a cable, the piston body is provided with a conduction part, the piston device is assembled in the piston device accommodation chamber, and the piston body can be blocked by pressing The air intake part and the exhaust part communicate with the elastic element, and the conducting part of the piston body can make the air intake part and the exhaust part conductively aligned with the air intake part and the exhaust part.

2. The locomotive exhaust gas recycling and purification structure as claimed in claim 1, characterized in that the conducting portion of the piston body is a ring groove.

3. The locomotive exhaust gas recycling and purification structure as claimed in claim 1, wherein the conducting portion of the piston body is a through hole.

4. The locomotive exhaust gas recycling and purification structure as shown in claim 1, wherein the piston device is further provided with a fixed plate and a screw set for guiding the cable, and the fixed plate is closed to the piston device The accommodating chamber, and the screw set is fixed on the fixed plate.

5. The locomotive exhaust gas recycling and purification structure as claimed in claim 1, wherein the piston device accommodation chamber is further provided with two perforations as the air pressure flow space required for the movement of the piston body, and the two perforations are used for gas control. The valve device communicates with each other.

6. The vehicle exhaust gas recycling and purification structure as claimed in claim 1, wherein the elastic element is a spring.