CN112177812A - Automobile exhaust gas recirculation valve - Google Patents
Automobile exhaust gas recirculation valve Download PDFInfo
- Publication number
- CN112177812A CN112177812A CN202011001659.0A CN202011001659A CN112177812A CN 112177812 A CN112177812 A CN 112177812A CN 202011001659 A CN202011001659 A CN 202011001659A CN 112177812 A CN112177812 A CN 112177812A
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- CN
- China
- Prior art keywords
- damping
- valve
- motor
- sliding sleeve
- exhaust gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/52—Systems for actuating EGR valves
- F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
- F02M26/54—Rotary actuators, e.g. step motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/66—Lift valves, e.g. poppet valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/66—Lift valves, e.g. poppet valves
- F02M26/67—Pintles; Spindles; Springs; Bearings; Sealings; Connections to actuators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/74—Protection from damage, e.g. shielding means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Power Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention relates to the technical field of automobile accessories, in particular to an automobile exhaust gas recirculation valve which comprises a valve body and a motor connected with the valve body, wherein the valve body is provided with a valve cavity and a valve shaft, a bearing is arranged at an air inlet in the valve cavity, the valve shaft penetrates through the bearing to be linked with the motor, the motor is connected with the valve body through a mounting seat, the mounting seat comprises a mounting part and a connecting part, the motor is arranged in the mounting part, the connecting part is fixedly connected with the valve body, a damping mechanism is arranged on the mounting end surface between the mounting part and the motor, and a gap sealing device is arranged between the valve shaft and the bearing, and the: reduce the motor resonance, guarantee the leakproofness of valve shaft.
Description
Technical Field
The invention relates to the technical field of automobile accessories, in particular to an automobile exhaust gas recirculation valve.
Background
An exhaust gas circulation valve is a main component of an automobile exhaust gas circulation system, and is mainly a small internal combustion engine for an automobile that circulates exhaust gas after combustion and reduces nitrogen oxides in the exhaust gas, thereby improving fuel economy at partial load.
The traditional exhaust gas circulating valve mainly comprises a valve body and a motor connected with the valve body, wherein the valve body is provided with a valve cavity, a circulating inlet and a circulating outlet which are arranged in parallel along the valve cavity, a valve shaft and a valve shaft lever are arranged in the valve cavity, the valve shaft lever is used for driving the circulating inlet to be communicated or blocked with the circulating outlet, and the motor is linked with the valve shaft lever to drive the valve shaft to slide in the valve cavity.
The motor and the valve body are fixed through the fastening piece, and after the motor is used for a long time, the linkage between the motor and the valve shaft rod can deviate due to the fact that the motor has large resonance, and the concentricity between the valve shaft rod and the motor output shaft deviates, so that the sealing performance of the valve shaft is enabled to be out of order.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an automobile exhaust gas recirculation valve aiming at the defects of the prior art, so that the resonance of a motor is reduced, and the sealing performance of a valve shaft is ensured.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an automobile exhaust gas recirculation valve, includes the valve body and the motor of being connected with the valve body, the valve body has valve pocket, valve shaft, the bearing is installed to air inlet department in the valve pocket, the valve shaft passes bearing and motor linkage, its characterized in that: the motor is connected with the valve body through the mounting seat, the mounting seat comprises a mounting portion and a connecting portion, the motor is arranged in the mounting portion, the connecting portion is fixedly connected with the valve body, a damping mechanism is arranged on the mounting end face between the mounting portion and the motor, and a gap sealing device is arranged between the valve shaft and the bearing.
The present invention having the above features: the valve body is connected with the motor through the mounting seat, the resonance of the motor in operation can be effectively eliminated by arranging the damping mechanism on the mounting end face between the mounting part of the mounting seat and the motor, so that leakage of sealing between the valve shaft and the valve body caused by the resonance is prevented, meanwhile, gap sealing is arranged between the valve shaft and the bearing, and the gap between the valve shaft and the bearing is blocked, so that the sealing performance is further ensured, and the guarantee is provided for the normal operation of the valve body.
The invention further comprises the following steps: the damping mechanism comprises a guide pillar and a damping sliding sleeve, one end of the guide pillar is connected with the bottom of the motor, the other end of the guide pillar is arranged in the damping sliding sleeve and is in sliding connection with the damping sliding sleeve, a first damping spring is sleeved outside the guide pillar, two ends of the first damping spring are fixedly connected with the guide pillar and the damping sliding sleeve respectively, and a limiting structure for preventing the guide pillar from being separated from the damping sliding sleeve is arranged in the damping sliding sleeve.
The present invention having the above features: when the motor works, the guide pillar slides up and down in the damping sliding sleeve to compress the first damping spring for damping, the damping mechanism can eliminate axial vibration of the motor, and the damping sliding sleeve is fixedly connected with the mounting end face to ensure that the guide pillar slides stably.
The invention further comprises the following steps: the clearance sealing device comprises a guide plate, a sealing ring, a high-temperature spring and a support plate are sequentially arranged between the guide plate and the valve shaft, the support plate is arranged around the valve shaft and is fixedly connected with the valve shaft, and the guide plate is fixedly connected with the bearing.
The present invention having the above features: the sealing ring, the high-temperature spring and the supporting plate which are positioned between the guide plate and the valve shaft form a gap sealing mechanism, so that the sealing ring always seals a gap between the valve shaft and the bearing, the supporting plate moves along with the movement of the valve shaft, the high-temperature spring is used for ensuring the acting force of the sealing ring, and the guide plate is used for strengthening and stabilizing the structure among the supporting plate, the sealing ring and the spring, so that a better sealing effect is ensured.
The invention further comprises the following steps: the limiting structure comprises a limiting sliding groove formed in the side wall of the damping sliding sleeve and a limiting sliding rod arranged inside the limiting sliding groove, the limiting sliding groove is connected with the limiting sliding rod in a sliding mode, one end of the limiting sliding rod is connected with the damping sliding sleeve, and the other end of the limiting sliding rod is provided with a limiting disc and a limiting sliding groove notch in a clamping mode.
The present invention having the above features: set up limit structure in damper, can prevent on the one hand that the guide pillar from breaking away from the shock attenuation sliding sleeve, on the other hand can restrict the upper and lower slip of guide pillar, makes it can be in shock attenuation sliding sleeve stable slip, guarantees the shock attenuation effect.
The invention further comprises the following steps: the damping mechanism comprises a damping support column arranged inside the damping sliding sleeve, one end of the damping support column is connected with the guide column in an inserting mode, the other end of the damping support column is connected with a second damping spring in a sleeved mode, a buffering pad is arranged at the bottom of the damping sliding sleeve, and the buffering pad and the damping support column are arranged oppositely.
The present invention having the above features: the shock absorption support column is provided with a buffer pad below, the shock between the shock absorption support column and the shock absorption support column is converted into elastic shock, and the shock absorption performance is further improved.
The invention further comprises the following steps: and a heat absorption layer is arranged on the inner side of the sealing ring.
The present invention having the above features: absorbing heat from the exhaust gas.
The invention further comprises the following steps: the inner side of the supporting plate is provided with a water absorbing layer.
The present invention having the above features: for treating moisture in the gas.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of the damper mechanism.
Fig. 3 is a side view of the damper mechanism.
Fig. 4 is a schematic structural view of the gap sealing device.
Detailed Description
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
As shown in fig. 1-4, an automobile exhaust gas recirculation valve comprises a valve body 1 and a motor 2 connected with the valve body 1, the valve body 1 has a valve cavity and a valve shaft 3, a bearing 12 is installed at an air inlet 11 in the valve cavity, the valve shaft 3 passes through the bearing 12 to be linked with the motor 2, the motor 2 is connected with the valve body 1 through a mounting seat 4, the mounting seat 4 comprises a mounting part 41 and a connecting part 42, the motor 2 is arranged in the mounting part 41, the connecting part 42 is fixedly connected with the valve body 1, a damping mechanism 5 is arranged on a mounting end face between the mounting part 41 and the motor 2, and a gap sealing device 6 is arranged between the valve shaft 3 and the bearing 12.
The damping mechanism 5 comprises a guide pillar 51 and a damping sliding sleeve 52, one end of the guide pillar 51 is connected with the bottom of the motor 2, the other end of the guide pillar 51 is arranged in the damping sliding sleeve 52 and is in sliding connection with the same, a first damping spring 53 is sleeved outside the guide pillar 51, two ends of the first damping spring 53 are respectively fixedly connected with the guide pillar 51 and the damping sliding sleeve 52, a limiting structure 54 for preventing the guide pillar 51 from being separated is arranged in the damping sliding sleeve 52, a damping abutting column 55 inside the damping sliding sleeve 52 is inserted into the guide pillar 51, one end of the damping abutting column 55 is inserted into the guide pillar 51, the other end of the damping abutting column is sleeved with a second damping spring 56, a cushion.
The limiting structure 54 comprises a limiting sliding groove 541 formed in the side wall of the shock-absorbing sliding sleeve 52 and a limiting sliding rod 542 arranged inside the limiting sliding groove 541, the limiting sliding groove 541 is slidably connected with the limiting sliding rod 542, one end of the limiting sliding rod 542 is connected with the shock-absorbing sliding sleeve 52, and the other end of the limiting sliding rod 542 is provided with a limiting disc 543 which is clamped with a notch of the limiting sliding groove 541.
The gap sealing device 6 comprises a guide plate 61, a sealing ring 62, a high-temperature spring 63 and a support plate 64 are sequentially arranged between the guide plate 61 and the valve shaft 3, the support plate 64 is arranged around the valve shaft 3 and fixedly connected with the valve shaft 3, the guide plate 61 is fixedly connected with the bearing 12, a heat absorbing layer 65 is arranged on the inner side of the sealing ring 62, and a water absorbing layer 66 is arranged on the inner side of the support plate 64.
Claims (7)
1. The utility model provides an automobile exhaust gas recirculation valve, includes the valve body and the motor of being connected with the valve body, the valve body has valve pocket, valve shaft, the bearing is installed to air inlet department in the valve pocket, the valve shaft passes bearing and motor linkage, its characterized in that: the motor is connected with the valve body through the mounting seat, the mounting seat comprises a mounting portion and a connecting portion, the motor is arranged in the mounting portion, the connecting portion is fixedly connected with the valve body, a damping mechanism is arranged on the mounting end face between the mounting portion and the motor, and a gap sealing device is arranged between the valve shaft and the bearing.
2. The automotive exhaust gas recirculation valve according to claim 1, wherein: the damping mechanism comprises a guide pillar and a damping sliding sleeve, one end of the guide pillar is connected with the bottom of the motor, the other end of the guide pillar is arranged in the damping sliding sleeve and is in sliding connection with the damping sliding sleeve, a first damping spring is sleeved outside the guide pillar, two ends of the first damping spring are fixedly connected with the guide pillar and the damping sliding sleeve respectively, and a limiting structure for preventing the guide pillar from being separated from the damping sliding sleeve is arranged in the damping sliding sleeve.
3. The automotive exhaust gas recirculation valve according to claim 1, wherein: the clearance sealing device comprises a guide plate, a sealing ring, a high-temperature spring and a support plate are sequentially arranged between the guide plate and the valve shaft, the support plate is arranged around the valve shaft and is fixedly connected with the valve shaft, and the guide plate is fixedly connected with the bearing.
4. An automotive exhaust gas recirculation valve according to claim 2, characterized in that: the limiting structure comprises a limiting sliding groove formed in the side wall of the damping sliding sleeve and a limiting sliding rod arranged inside the limiting sliding groove, the limiting sliding groove is connected with the limiting sliding rod in a sliding mode, one end of the limiting sliding rod is connected with the damping sliding sleeve, and the other end of the limiting sliding rod is provided with a limiting disc and a limiting sliding groove notch in a clamping mode.
5. An automotive exhaust gas recirculation valve according to claim 2, characterized in that: the damping mechanism comprises a damping support column arranged inside the damping sliding sleeve, one end of the damping support column is connected with the guide column in an inserting mode, the other end of the damping support column is connected with a second damping spring in a sleeved mode, a buffering pad is arranged at the bottom of the damping sliding sleeve, and the buffering pad and the damping support column are arranged oppositely.
6. An automotive exhaust gas recirculation valve according to claim 3, characterized in that: and a heat absorption layer is arranged on the inner side of the sealing ring.
7. An automotive exhaust gas recirculation valve according to claim 3, characterized in that: the inner side of the supporting plate is provided with a water absorbing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011001659.0A CN112177812A (en) | 2020-09-22 | 2020-09-22 | Automobile exhaust gas recirculation valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011001659.0A CN112177812A (en) | 2020-09-22 | 2020-09-22 | Automobile exhaust gas recirculation valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112177812A true CN112177812A (en) | 2021-01-05 |
Family
ID=73956717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011001659.0A Pending CN112177812A (en) | 2020-09-22 | 2020-09-22 | Automobile exhaust gas recirculation valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112177812A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776491A (en) * | 2022-03-02 | 2022-07-22 | 温州市温纳汽车配件有限公司 | High-sealing exhaust gas recirculation valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865676A (en) * | 2012-09-26 | 2013-01-09 | 庞准 | Heat absorbing device |
| CN108468604A (en) * | 2018-05-17 | 2018-08-31 | 瑞安市立安汽车部件有限公司 | Waste gas circulating valve |
| CN208564809U (en) * | 2018-04-16 | 2019-03-01 | 瑞安市立安汽车部件有限公司 | A kind of durable exhaust gas recirculation valve |
| CN209637909U (en) * | 2019-03-25 | 2019-11-15 | 温州市温纳汽车配件有限公司 | A kind of exhaust gas recirculation valve |
| CN210033966U (en) * | 2018-12-27 | 2020-02-07 | 江西省保捷通风设备有限公司 | Centrifugal fan with damper |
-
2020
- 2020-09-22 CN CN202011001659.0A patent/CN112177812A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865676A (en) * | 2012-09-26 | 2013-01-09 | 庞准 | Heat absorbing device |
| CN208564809U (en) * | 2018-04-16 | 2019-03-01 | 瑞安市立安汽车部件有限公司 | A kind of durable exhaust gas recirculation valve |
| CN108468604A (en) * | 2018-05-17 | 2018-08-31 | 瑞安市立安汽车部件有限公司 | Waste gas circulating valve |
| CN210033966U (en) * | 2018-12-27 | 2020-02-07 | 江西省保捷通风设备有限公司 | Centrifugal fan with damper |
| CN209637909U (en) * | 2019-03-25 | 2019-11-15 | 温州市温纳汽车配件有限公司 | A kind of exhaust gas recirculation valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776491A (en) * | 2022-03-02 | 2022-07-22 | 温州市温纳汽车配件有限公司 | High-sealing exhaust gas recirculation valve |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210105 |
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| RJ01 | Rejection of invention patent application after publication |