CN2750055Y - Exhaust gas by-pass valve - Google Patents
Exhaust gas by-pass valve Download PDFInfo
- Publication number
- CN2750055Y CN2750055Y CN 200420113753 CN200420113753U CN2750055Y CN 2750055 Y CN2750055 Y CN 2750055Y CN 200420113753 CN200420113753 CN 200420113753 CN 200420113753 U CN200420113753 U CN 200420113753U CN 2750055 Y CN2750055 Y CN 2750055Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- lower cover
- exhaust gas
- loam cake
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an exhaust gas by-pass valve which comprises a valve assembly composed of a valve body, a sealing valve and a shaft sleeve, and an actuating mechanism composed of an upper and a lower covers, a support disk, a spring and a film, wherein a valve cavity is arranged in the valve body provided with an air inlet and an air outlet; the shaft sleeve is pressed in the valve body; the sealing valve supports in the shaft sleeve, and slides in the valve cavity; the lower cover is connected with the shaft sleeve and the valve body; the upper cover is arranged on the lower cover; a sealed cavity is formed between the upper cover and the lower cover; the support disk and the spring are arranged in the cavity; the support disk is connected with the upper end of the sealing valve; one end of the film is compressed on the support disk, and the other end of the film is compressed between the upper and the lower covers; the cavity between the upper and the lower covers is divided into an upper and a lower sealing chambers by the film; the upper and the lower covers are respectively provided with a negative pressure suction nozzle and a positive pressure suction nozzle. The utility model achieves the purposes of regulating the rotation speed of a supercharger, controlling the output power of an engine, meeting the air inlet requirement of the engine in various working conditions and further increasing the work efficiency of the engine and meeting various emission standards through regulating the pressure.
Description
Technical field
The utility model relates to technical field of engines, and the exhaust gas by-pass valve that pressurized machine particularly a kind of and on the petrol engine matches is further realized low emission, high efficiency to guarantee motor.
Background technique
The turbocharging technology of internal-combustion engine is that the high-temp waste gas with certain pressure that the cylinder block tracheae is discharged is flowed into expansion working in the turbosupercharger, drive the Presseseccentric impeller high speed rotating coaxial with turbine, air compression work done by cylinder of internal combustion engine increases substantially engine performance.On diesel engine, generally use pressurized machine at present, and also generally do not used pressurized machine on the petrol engine.The pressurized machine that uses on the diesel engine, its exhaust gas bypass mechanism is set directly on the pressurized machine.Also there is not at present the independent employed exhaust gas by-pass valve of pressurized machine that is applicable on the petrol engine.
Summary of the invention
Goal of the invention of the present utility model provides the employed exhaust gas by-pass valve of pressurized machine on a kind of petrol engine, during the supporting use of it and pressurized machine, can regulate supercharger speed, thereby reach control petrol engine output power, increase work efficiency, realize motor low emission, high efficiency.
In order to realize the foregoing invention purpose, the technological scheme that the utility model adopted is: exhaust gas by-pass valve, and its feature comprises valve member and actuator, described valve member comprises valve body, sealed valve, axle sleeve, locking nut; Described actuator comprises loam cake, lower cover, supporting disk, spring, diaphragm, gland nut; In valve body, be provided with a valve pocket, and on valve body, be provided with the inlet, outlet that communicates with valve pocket; Axle sleeve is pressed in the valve body from the top of valve body, and sealed valve is supported in the axle sleeve, and can be free to slide in the valve pocket of valve body; Lower cover is enclosed within on the axle sleeve, and by being spun on locking nut and axle sleeve and the valve body close-coupled on the axle sleeve; Loam cake is installed in down by fastening piece and covers, and forms an airtight cavity between the upper and lower cover; Supporting disk and spring from bottom to top are placed in this cavity, supporting disk is connected by fastening piece with the upper end of sealed valve, one end of diaphragm is pressed on the supporting disk by gland nut, the other end is pressed between the upper and lower cover, diaphragm will be separated into upper and lower two sealed chamber by the cavity that loam cake and lower cover constitute, and wherein supporting disk and spring are positioned at sealed chamber; Loam cake and under cover and the back pressure air inlet is housed respectively chews with malleation air inlet and chew.
For easy to assembly, in the bottom of valve body one seat ring is housed, the suction port on the valve body is arranged on the seat ring.
In order to strengthen sealing effect, between axle sleeve, lower cover, locking nut, be provided with an O RunddichtringO.
The utility model can be realized adjusting to supercharger speed by following three kinds of modes, and the output power of control motor improves efficiency of engine.
1, motor is being set under the operating mode, and the back pressure air inlet on the utility model upper and lower cover is chewed with malleation air inlet and chewed and be in open state, spring pressure decision systems pressure, and system is under the nominal situation.
2, motor requires less output power, pressure is regulated through the back pressure air inlet and is chewed the back pressure minimizing that makes in the upward sealed chamber of the present utility model, pressure adjusting is simultaneously chewed to lower seal chamber of the present utility model through the malleation air inlet suitable malleation is provided, when malleation and valve body suction port air pressure sum add the spring pressure sum greater than back pressure, sealed valve moves upward, sealed valve of the present utility model is opened, waste gas is discharged from the air outlet on the valve body, make the air pressure that enters worm wheel pressure booster reduce, the air pressure of system is regulated automatically, thereby reach the reduction supercharger speed, make the purpose of the automatic coupling of air that enters motor.
3, motor requires to improve output power, the pressure adjusting is chewed to the utility model through the back pressure air inlet and is increased the back pressure that goes up in the sealed chamber, pressure is regulated through the malleation air inlet and is chewed the malleation minimizing that makes in the lower seal chamber of the present utility model simultaneously, when making back pressure and spring pressure pressure sum greater than valve body suction port air pressure and malleation sum, sealed valve moves downward, sealed valve of the present utility model is in closed condition, make the air pressure that enters worm wheel pressure booster raise, the air pressure of system is regulated automatically, thereby reach the increase supercharger speed, make the purpose of the automatic coupling of air that enters motor.
Owing to adopted design proposal as above, the utility model reaches the adjusting supercharger speed by the adjusting of air pressure, and then reach control petrol engine output power, improve the purpose of engine operation efficient, it and Matching of Turbocharger, power character, the Economy of motor are significantly improved, satisfy various emission standards.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Exhaust gas by-pass valve as shown in Figure 1 comprises valve member and actuator, and valve member comprises valve body 2, sealed valve 3, axle sleeve 4, locking nut 14 and O RunddichtringO 15; Actuator comprises loam cake 8, lower cover 6, supporting disk 11, spring 9, diaphragm 13, gland nut 16.In valve body 2, be provided with a valve pocket 17, and on valve body 2, be provided with the inlet, outlet 18,19 that communicates with valve pocket 17; Easy to assembly for sealed valve 3, in the bottom of valve body 2 seat ring 1 is housed, the suction port on the valve body 2 18 is arranged on the seat ring 1.Unload bottom race 1, just sealed valve 3 can be taken out in valve body 2.
In order to strengthen the radiating effect of valve body 2, on valve body 2, be provided with radiating fin 23.
Supporting disk 11 and spring 9 from bottom to top are placed in this airtight cavity, and supporting disk 11 is a pagoda shape structure, and its top is connected by fastening piece Cock screw 12 with the upper end of sealed valve 3, and spring 9 is pressed between supporting disk 11 and the loam cake 8.
One end of diaphragm 13 is pressed on the bottom of supporting disk 11 by gland nut 16, the other end is pressed between the upper and lower cover 8,6, diaphragm 13 will be separated into upper and lower two sealed chamber 21,22 by the cavity that loam cake 8 and lower cover 6 constitute, and wherein supporting disk 11 and spring 9 are positioned at sealed chamber 21; On loam cake 8 and lower cover 6, be equipped with respectively the back pressure air inlet chew 10 and the malleation air inlet chew 5, wherein the back pressure air inlet is chewed 10 and will be gone up sealed chamber 21 and link up with extraneous, the malleation air inlet is chewed 5 lower seal chamber 22 is linked up with extraneous.Certainly, the back pressure air inlet chew 10 and the malleation air inlet chew 5 and also can replace with hollow screw.
Claims (9)
1, exhaust gas by-pass valve, its feature comprises valve member and actuator, described valve member comprises valve body, sealed valve, axle sleeve, locking nut; Described actuator comprises loam cake, lower cover, supporting disk, spring, diaphragm, gland nut; In valve body, be provided with a valve pocket, and on valve body, be provided with the inlet, outlet that communicates with valve pocket; Axle sleeve is pressed in the valve body from the top of valve body, and sealed valve is supported in the axle sleeve, and can be free to slide in the valve pocket of valve body; Lower cover is enclosed within on the axle sleeve, and by being spun on locking nut and axle sleeve and the valve body close-coupled on the axle sleeve; Loam cake is installed in down by fastening piece and covers, and forms an airtight cavity between the upper and lower cover; Supporting disk and spring from bottom to top are placed in this cavity, supporting disk is connected by fastening piece with the upper end of sealed valve, one end of diaphragm is pressed on the supporting disk by gland nut, the other end is pressed between the upper and lower cover, diaphragm will be separated into upper and lower two sealed chamber by the cavity that loam cake and lower cover constitute, and wherein supporting disk and spring are positioned at sealed chamber; Loam cake and under cover and the back pressure air inlet is housed respectively chews with malleation air inlet and chew.
2, exhaust gas by-pass valve according to claim 1 is characterized in that: in the bottom of valve body one seat ring is housed, the suction port on the valve body is arranged on the seat ring.
3, exhaust gas by-pass valve according to claim 1 and 2 is characterized in that: be provided with an O RunddichtringO between axle sleeve, lower cover, locking nut.
4, exhaust gas by-pass valve according to claim 1 and 2 is characterized in that: be provided with radiating fin on valve body.
5, exhaust gas by-pass valve according to claim 3 is characterized in that: be provided with radiating fin on valve body.
6, exhaust gas by-pass valve according to claim 1 and 2 is characterized in that: what the loam cake profile adopted is that cylinder adds the smooth connection shape of arc, and the lower cover profile adopts cylinder and the smooth shape that is connected of circular cone.
7, exhaust gas by-pass valve according to claim 3 is characterized in that: what the loam cake profile adopted is that cylinder adds the smooth connection shape of arc, and the lower cover profile adopts cylinder and the smooth shape that is connected of circular cone.
8, exhaust gas by-pass valve according to claim 4 is characterized in that: what the loam cake profile adopted is that cylinder adds the smooth connection shape of arc, and the lower cover profile adopts cylinder and the smooth shape that is connected of circular cone.
9, exhaust gas by-pass valve according to claim 5 is characterized in that: what the loam cake profile adopted is that cylinder adds the smooth connection shape of arc, and the lower cover profile adopts cylinder and the smooth shape that is connected of circular cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420113753 CN2750055Y (en) | 2004-12-21 | 2004-12-21 | Exhaust gas by-pass valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420113753 CN2750055Y (en) | 2004-12-21 | 2004-12-21 | Exhaust gas by-pass valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2750055Y true CN2750055Y (en) | 2006-01-04 |
Family
ID=35823442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420113753 Expired - Fee Related CN2750055Y (en) | 2004-12-21 | 2004-12-21 | Exhaust gas by-pass valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2750055Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678285A (en) * | 2012-05-07 | 2012-09-19 | 上海交通大学 | Exhaust back pressure and environmental pressure self-adaption type mechanical regulation device |
| CN104265445A (en) * | 2014-01-02 | 2015-01-07 | 汪永康 | Exhaust gas valve |
| CN105909428A (en) * | 2016-06-29 | 2016-08-31 | 广西玉柴机器股份有限公司 | Novel EGR valve structure |
-
2004
- 2004-12-21 CN CN 200420113753 patent/CN2750055Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678285A (en) * | 2012-05-07 | 2012-09-19 | 上海交通大学 | Exhaust back pressure and environmental pressure self-adaption type mechanical regulation device |
| CN104265445A (en) * | 2014-01-02 | 2015-01-07 | 汪永康 | Exhaust gas valve |
| CN104265445B (en) * | 2014-01-02 | 2019-04-30 | 汪永康 | A kind of exhaust gas valve |
| CN105909428A (en) * | 2016-06-29 | 2016-08-31 | 广西玉柴机器股份有限公司 | Novel EGR valve structure |
| CN105909428B (en) * | 2016-06-29 | 2018-06-12 | 广西玉柴机器股份有限公司 | A kind of EGR valve structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060104 Termination date: 20100121 |