CN201874673U - Air circulating valve of gasoline engine turbocharger - Google Patents
Air circulating valve of gasoline engine turbocharger Download PDFInfo
- Publication number
- CN201874673U CN201874673U CN2010206175863U CN201020617586U CN201874673U CN 201874673 U CN201874673 U CN 201874673U CN 2010206175863 U CN2010206175863 U CN 2010206175863U CN 201020617586 U CN201020617586 U CN 201020617586U CN 201874673 U CN201874673 U CN 201874673U
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- China
- Prior art keywords
- air
- air circulating
- circulating valve
- spring
- locating support
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- Expired - Fee Related
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Abstract
The utility model discloses an air circulating valve of a gasoline engine turbocharger, which consists of an end cover, a positioning bracket of the air circulating valve, an air circulating valve diaphragm, a spring seat, a spring and an air tap arranged on the end cover, wherein the spring, the spring seat, the air circulating valve diaphragm and the positioning bracket of the air circulating valve are sequentially arranged in the end cover; one end of the spring is contacted with the inner end surface of the end cover; the other end of the spring is supported against the inner end surface of the spring seat; the air circulating valve diaphragm is arranged on the outer end surface of the spring seat; and the positioning bracket of the air circulating valve is pressed on the air circulating valve diaphragm. A circle of arc lug boss is arranged on a contacted sealing end surface of the air circulating valve diaphragm and the positioning bracket of the air circulating valve. A circle of multiple air current holes are uniformly arranged on the circumference of the positioning bracket of the air circulating valve. The air circulating valve is arranged at a gas outlet of a gas compressor by bolts; and the positioning bracket of the air circulating valve is supported against the gas outlet of the gas compressor under the action of the spring.
Description
Technical field
The utility model relates to a kind of air recycle valve of petrol engine, particularly a kind of air recycle valve of using on the petrol engine turbosupercharger.
Background technique
Along with the development of technology, turbosupercharger reduces toxic emission because it improves engine power, and is energy-saving and cost-reducing, more and more is applied on the petrol engine.Petrolic working condition is more complicated and changeable than diesel engine, and the job requirement under different operating modes also has very big difference to turbosupercharger.Existing diesel turbocharging device can not be applicable to petrol engine, stops suddenly or during urgent idling at petrol engine, and turbosupercharger still can high speed rotating because of rotator inertia, continues the fresh air that sucks in is compressed and desires to be sent to cylinder.At this moment,, cause the surge of pressurized machine because the closure of motor can make the rapid moment raising of the pressure ratio of pressurized machine, damage or breaking-up pressurized machine, even can cause wider breaking-up to motor.In order to address this problem, on the petrol engine turbosupercharger, all is furnished with an air recycle valve.
There are the following problems for existing petrol engine turbosupercharger air recycle valve: one, the air circulation valve film directly contacts with fuel gas mixture, and existing air circulation valve film oil resistance is poor, and long-term work will be difficult to guarantee its performance; Two, the part that contacts with the air recycle valve locating support of existing air circulation valve film is a plane structure, can not play good seal action; Three, existing air recycle valve locating support has only respectively been opened an airflow hole in the both sides of correspondence, make the gas after pressurizeing in the blower outlet place after the air circulation valve film is opened, flow back to compressor inlet, but this two hole structures make air-flow can form lateral force in the process that flows back to, and influence the working stability of air recycle valve locating support.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art and a kind of novel air circulating valve that uses on the petrol engine turbosupercharger is provided; make the petrol engine turbosupercharger when engine sudden parking or urgent idling, not form supercharging and surge, and then realize effective protection pressurized machine itself and motor.
The technical solution of the utility model is: a kind of petrol engine turbosupercharger air recycle valve, it is made up of end cap, air recycle valve locating support, air circulation valve film, spring seat, spring and the valve that is installed on the end cap.On air circulation valve film and seal face that the air recycle valve locating support contacts, be provided with the boss of a circle circular arc, when air recycle valve is fastened on the gas compressor with screw, not only the area of contact of the boss of circular arc and air recycle valve locating support increases, can play good seal action, and increase the mechanical strength of air circulation diaphragm.On the circumference of air recycle valve locating support, be provided with a plurality of airflow holes of a circle, airflow hole is arranged on the circumference of air recycle valve locating support equably, when the air circulation valve film is opened, gas after the pressurization can flow back into compressor inlet by the airflow hole on the air recycle valve locating support circumference more equably, reduce the suffered lateral force of air recycle valve, guaranteed the stability of air recycle valve locating support work.
Spring, spring seat, air circulation valve film and air recycle valve locating support are installed in the end cap successively, one end of spring contacts with the interior edge face of end cap, the other end withstands on the interior edge face of spring seat, the air circulation valve film is installed on the exterior edge face of spring seat, and the air recycle valve locating support is pressed on the air circulation valve film.
Petrol engine turbosupercharger air recycle valve is installed on the gas compressor by bolt, and the air recycle valve locating support withstands on the gas compressor gas outlet under the effect of spring.
The utility model compared with prior art has following characteristics:
1, set up the boss of a circle circular arc at air circulation valve film top, on the boss of this circle circular arc and the seal face that the air recycle valve locating support contacts, when air recycle valve is fastened on the gas compressor with screw, the surface of contact of the boss of circular arc and air recycle valve locating support can be fitted fully, not can because of the air recycle valve locating support owing to the surface of contact slight deformation that reasons such as foozle cause influences sealing effect, in the working procedure that circulation is opened, closed, improve the reliability of sealing.
2, on the circumference of air recycle valve locating support, set up a circle airflow hole, airflow hole is arranged on the circumference of air recycle valve locating support equably, when the air circulation valve film is opened, gas after the pressurization can flow back into compressor inlet by the airflow hole on the air recycle valve locating support circumference more equably, reduce the suffered lateral force of air recycle valve, guaranteed the stability of air recycle valve locating support work.
Below in conjunction with the drawings and specific embodiments detailed structure of the present utility model is further described.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is an air recycle valve diaphragm structure schematic representation;
Accompanying drawing 3 is an air recycle valve locating support structural representation;
Accompanying drawing 4 is installed and used schematic representation for air recycle valve.
Embodiment
A kind of petrol engine turbosupercharger air recycle valve, it is made up of end cap 1, air recycle valve locating support 2, air circulation valve film 3, spring seat 4, spring 5 and the valve 6 that is installed on the end cap 1.On air circulation valve film 3 and seal face that air recycle valve locating support 2 contacts, be provided with the boss 3-1 of a circle circular arc, when air recycle valve is fastened on the gas compressor with screw, not only the area of contact of the boss 3-1 of circular arc and air recycle valve locating support 2 increases, can play good seal action, and increase the mechanical strength of air circulation diaphragm.On the circumference of air recycle valve locating support 2, be provided with eight airflow hole 2-1, eight airflow hole 2-1 are arranged on the circumference of air recycle valve locating support 2 equably, when the air circulation valve film is opened, gas after the pressurization can flow back into compressor inlet by the airflow hole 2-1 on air recycle valve locating support 2 circumference more equably, reduce the suffered lateral force of air recycle valve, guaranteed the stability of air recycle valve locating support work.
Petrol engine turbosupercharger air recycle valve is installed on the gas compressor 7 by bolt 8, and air recycle valve locating support 2 withstands on gas compressor 7 gas outlets under the effect of spring 5.
Claims (1)
1. petrol engine turbosupercharger air recycle valve, it is by end cap, the air recycle valve locating support, the air circulation valve film, spring seat, spring and the valve that is installed on the end cap are formed, spring, spring seat, air circulation valve film and air recycle valve locating support are installed in the end cap successively, one end of spring contacts with the interior edge face of end cap, the other end withstands on the interior edge face of spring seat, the air circulation valve film is installed on the exterior edge face of spring seat, the air recycle valve locating support is pressed on the air circulation valve film, it is characterized in that: the boss that is provided with a circle circular arc on air circulation valve film and seal face that the air recycle valve locating support contacts; Be provided with a plurality of airflow holes of a circle on the circumference of air recycle valve locating support, airflow hole is arranged on the circumference of air recycle valve locating support equably.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206175863U CN201874673U (en) | 2010-11-13 | 2010-11-13 | Air circulating valve of gasoline engine turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206175863U CN201874673U (en) | 2010-11-13 | 2010-11-13 | Air circulating valve of gasoline engine turbocharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201874673U true CN201874673U (en) | 2011-06-22 |
Family
ID=44162594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206175863U Expired - Fee Related CN201874673U (en) | 2010-11-13 | 2010-11-13 | Air circulating valve of gasoline engine turbocharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201874673U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351078A (en) * | 2014-08-18 | 2016-02-24 | 比亚迪股份有限公司 | Control method and control device for turbocharging air circulation valve of engine |
| WO2018149162A1 (en) * | 2017-02-17 | 2018-08-23 | 广西玉柴机器股份有限公司 | Electrically controlled pneumatic surge protection device and control method |
-
2010
- 2010-11-13 CN CN2010206175863U patent/CN201874673U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351078A (en) * | 2014-08-18 | 2016-02-24 | 比亚迪股份有限公司 | Control method and control device for turbocharging air circulation valve of engine |
| CN105351078B (en) * | 2014-08-18 | 2018-06-26 | 比亚迪股份有限公司 | The control method and control device of the turbo charged air circulating valve of engine |
| WO2018149162A1 (en) * | 2017-02-17 | 2018-08-23 | 广西玉柴机器股份有限公司 | Electrically controlled pneumatic surge protection device and control method |
| US11060467B2 (en) | 2017-02-17 | 2021-07-13 | Guangxi Yuchai Machinery Co., Ltd. | Electrically controlled pneumatic surge prevention device and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20181113 |