CN201802477U - Double-channel turbine bypass air eliminator - Google Patents
Double-channel turbine bypass air eliminator Download PDFInfo
- Publication number
- CN201802477U CN201802477U CN2010205271990U CN201020527199U CN201802477U CN 201802477 U CN201802477 U CN 201802477U CN 2010205271990 U CN2010205271990 U CN 2010205271990U CN 201020527199 U CN201020527199 U CN 201020527199U CN 201802477 U CN201802477 U CN 201802477U
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- valve
- valve cover
- turbine
- valve seat
- flow channel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model discloses a double-channel turbine bypass air eliminator, comprising a turbine volute. The utility model is characterized in that two air inlet channels are disposed on the turbine volute and are respectively communicated with a venting channel; concave valve seats are disposed at the outlet of two venting channels and are provided with a shared valve cover. The utility model is advantageous in that the valve cover is in a sliding connection with the concave valve seat, thereby the characteristic curve of the valve flow and the valve flow area is in a lineal change; with the rack and pinion type transmission, the opening and flow area of the valve and the waste air bypass can be accurately controlled; the best matching of a supercharger and an engine can be realized.
Description
Technical field
The utility model relates to a kind of exhaust gas bypass device of turbosupercharger, specifically, relates to the double flow channel turbine by-pass means of deflation that a kind of Twin channel that is used for the double flow channel turbine is exitted simultaneously.
Background technique
Concerning vehicular engine, be to solve the low-load performance problem, more employing be high operating mode venting configuration.At this moment, the design of turbosupercharger is to make engine performance obtain Maximum Torque below being lower than medium rotating speed, and promptly pressurized machine and diesel engine are by peak torque operating mode coupling.Motor is when high rotating speed, for in allowed limits with boost pressure and maximum explosive pressure and supercharger speed restriction, the part exhaust of motor or part pressurized air are drained by bleed valve, make the one section travel line of gas compressor when high load of pressurized machine be bordering on horizontal line.
A kind of adjusting measure of exitting of generally adopting at present is to rely on the exhaust gas bypass device that is arranged on the booster turbine end to finish, not only can improve the low speed torque of motor, also can reduce the exhaust smoke of motor, reduce pollution, the working life that can also improve motor simultaneously air.During low speed, the waste gas that motor is discharged all enters the turbine acting in motor; When high engine speeds, the exhaust gas by-pass valve on the turbine volute is opened, and the part waste gas that motor is discharged is directly drained without the turbine wheel acting, thereby boost pressure is controlled in the safe scope.
Traditional double flow channel turbosupercharger exhaust gas bypass device adopts rotary valve structure, as shown in Figure 1, its working principle is: bleed valve 11a, bleed valve 11b are fastenedly connected on rocking arm 12, driving mechanism 9 drives rocking arm 12 around axis A1 rotation, thereby opens or closes the first bleed passage 1a and the bleed passage 1b that is arranged on the turbine volute 2.
During low speed, bleed valve 11a and bleed valve 11b close in motor, and the waste gas that motor is discharged all enters the turbine acting; When high engine speeds, driving mechanism 9 drives rocking arm 12 rotations, make bleed valve 11a, bleed valve 11b open and control its aperture, the part waste gas that motor is discharged is bypassed to the spiral case air outlet through the first bleed passage 1a and bleed passage 1b, realizes the venting of turbine end bypass.
Rotation gate is simple in structure, control is convenient, but its shortcoming is also more outstanding: 1, because the rotation gate Flow characteristics is very poor, flow and valve opening present nonlinear change completely in little aperture scope, flow substantially changes with valve opening in the big aperture scope, and the accurate control that realize discharge quantity is very difficult;
2, the valve opening early gate covers suffered pressure and valve opening late gate and covers suffered pressure and differ bigger, and the gas flow of valve opening late gate lid both sides changes violent, cause the suffered variation in pressure of valve cover violent, and the suffered pressure of valve opening and valve cover is directly related, and this makes the valve opening late gate cover in swing constantly.The swing of valve cover causes turbine inlet pressure and exhaust gas bypass amount instability, has influence on the working stability of turbosupercharger and even motor;
3, the continuous swing of valve cover also causes the mechanical wear aggravation of actuator and driving mechanism, and the life-span reduces, and causes the generation of abnormal sound.
Therefore, wish the design novel bypass means of deflation door that a kind of discharge quantity can accurately be controlled, valve opening is not influenced by the valve cover pressure, solve the problem that common rotary bypass means of deflation exists.
The model utility content
Problem to be solved in the utility model provides the double flow channel turbine by-pass means of deflation that a kind of valve opening and bypass discharge quantity can accurately be controlled, and improves the working stability of pressurized machine and even motor, improves the working life of turbosupercharger.
For addressing the above problem, the utility model by the following technical solutions:
A kind of double flow channel turbine by-pass means of deflation, comprise turbine volute, described turbine volute is provided with two gas-entered passageways, these two gas-entered passageways are communicated with bleed passage respectively, be provided with the spill valve seat in the outlet port of two bleed passages, be provided with shared valve cover on the spill valve seat, described valve cover and spill valve seat are slidingly connected.
Below be further improvement of these options:
The both sides of described spill valve seat are respectively equipped with the valve cover pressing plate, form guide groove respectively between described valve cover pressing plate and the spill valve seat, and the both sides of described valve cover are positioned at guide groove.
Further improve:
The cross section of described spill valve seat and two bleed passages is rectangle, and two bleed passages are the symmetrical parallel setting.
Further improve:
Described valve cover and Power Drive Unit are in transmission connection.
Further improve:
Described Power Drive Unit comprises the actuator that is installed on the turbine volute, described actuator is connected with driving mechanism, driving mechanism comprises driving gearshaft, on the described driving gearshaft driving gear is installed, the driving rack that is meshed with driving gear is installed in the upper middle position of valve cover.
Working principle of the present utility model is: under actuator and driving mechanism drive, driving gear and driving gearshaft rotate, and promote to slide in the guide groove of valve cover between spill valve seat and valve cover pressing plate.
The utility model adopts such scheme, has the following advantages:
1, valve cover adopts the mode of sliding to open and close, make the flow of valve and the characteristic curve of valve circulation area be linear change substantially, adopt the aperture and the circulation area of pinion and-rack transmission late gate can accomplish accurate control again, therefore can accurately control the exhaust gas bypass amount, realize the optimum Match of pressurized machine and motor;
2, the aperture of valve cover is not subjected to the influence of pressure on the valve cover, its aperture is fully by actuating mechanism controls, avoid the valve cover both sides because the valve opening that the pressure surge that flowing instability causes causes constantly changes, improved the working stability of pressurized machine and even motor;
3, valve cover is limited in the guide groove that spill valve seat and valve cover pressing plate form and moves, the continuous dancing of valve cover of similar rotary type valve can not take place, avoided the irregular wear of driving mechanism and actuator, improved the working life of these parts and eliminated the abnormal sound that brings owing to the valve cover swing.
4, the utility model is simple in structure, can adopt existing pressurized machine production technology and equipment to carry out processing, on the basis that keeps lower cost, realized the accurate control of turbosupercharger bypass venting, effectively improve the working stability of pressurized machine and motor, improved the working life of pressurized machine.The utility model is applicable to the motor of state's four dischargings, has vast market prospect and good social benefit.
Below in conjunction with drawings and Examples the utility model patent is described further:
Description of drawings
Accompanying drawing 1 is a double flow channel turbosupercharger exhaust gas bypass structural representation traditional in the background technique;
Accompanying drawing 3 is the structural representation when double flow channel turbine by-pass means of deflation is opened among the utility model embodiment.
Among the figure: 1a-first bleed passage; 1b-second bleed passage; The 2-turbine volute; The 3a-first spiral case gas-entered passageway; The 3b-second spiral case gas-entered passageway; 4-spill valve seat; 5a-left hand valve door closure pressing plate; 5b-right hand valve door closure pressing plate; The 6-valve cover; The 7-driving gear; The 8-driving gearshaft; The 9-driving mechanism; 10-actuator; The 11-rocking arm; 11a, 11b-valve cover; The 12-rocking arm; The 13-driving rack.
Embodiment
Embodiment, as shown in Figure 2, a kind of valve opening of double flow channel turbosupercharger and double flow channel turbine by-pass means of deflation that the bypass discharge quantity can accurately be controlled of being used for, comprise turbine volute 2, described turbine volute 2 is provided with the spiral case first gas-entered passageway 3a, the spiral case second gas-entered passageway 3b, the described spiral case first gas-entered passageway 3a is communicated with the first bleed passage 1a, the spiral case second gas-entered passageway 3b is communicated with the second bleed passage 1b, the described first bleed passage 1a, the outlet port of the second bleed passage 1b is provided with spill valve seat 4, on spill valve seat 4, be provided with shared valve cover 6, described valve cover 6 is slidingly connected with spill valve seat 4, and valve cover 6 is in transmission connection with Power Drive Unit.
Described spill valve seat 4 and valve cover 6 are rectangle, the both sides of described spill valve seat 4 are provided with left hand valve door closure pressing plate 5a, the right hand valve door closure pressing plate 5b that is fastenedly connected on turbine volute 3, form guide groove respectively between described left hand valve door closure pressing plate 5a, right hand valve door closure pressing plate 5b and the spill valve seat 4, the both sides of described valve cover 6 are positioned at guide groove, slide to open and close the first bleed passage 1a and the second bleed passage 1b for valve cover 6 front and back.
The described first bleed passage 1a, the second bleed passage 1b cross section are rectangle, and are the symmetrical parallel distribution, adopt a valve cover 6 to control the discharge quantity of the described first bleed passage 1a, the second bleed passage 1b simultaneously.
Described Power Drive Unit comprises the actuator 10 that is installed on the turbine volute 2, described actuator 10 is connected with driving mechanism 9, driving mechanism 9 comprises driving gearshaft 8, on the described driving gearshaft 8 driving gear 7 is installed, the driving rack 13 that is meshed with driving gear 7 is installed in the upper middle position of valve cover 6.
Valve cover 6 is in the drive lower slider of driving gear 7.Described driving gear 7 rotates around axis A1 under the drive of driving mechanism 9 and actuator 10, promote to move in the guide groove of valve cover 6 between spill valve seat 4 and left hand valve door closure pressing plate 5a, right hand valve door closure pressing plate 5b, thus the open and close first bleed passage 1a and the second bleed passage 1b.
During low engine speed, described sliding type bypass means of deflation is in closed condition, and all exhausts of motor at this moment all enter the turbine acting.Under the high rotating speed, described sliding type bypass means of deflation is in opening state in motor.
As shown in Figure 3, under actuator 10 and driving mechanism 9 drives, driving gear 7 and driving gearshaft 8 rotate, and promote to slide in the guide groove of valve cover 6 between spill valve seat 4 and left hand valve door closure pressing plate 5a, right hand valve door closure pressing plate 5b.Because the flow and the valve opening of sliding type valve are the linear changing relation substantially, and suffered pressure does not influence the aperture of valve on the valve cover of sliding type valve, actuator can accurately determine the aperture of valve according to the operating mode of motor, reaches the accurate control of bypass discharge quantity and boost pressure.At this moment, the bypass discharge quantity is only relevant with the aperture of the exhaust pressure of motor and valve, eliminated the influence of the astable mobile pressure surge that brings of valve cover both sides fully, eliminate rotation gate and opened the turbine inlet pressure surge influence that the swing of late gate lid brings, improve the stability of turbine work, improved the working life of moving elements such as actuator, driving mechanism.
We have been described in detail model utility according to the national patent method now, can discern the improvement or the replacement of specific embodiment disclosed herein for those skilled in the art.These modifications are in spirit and scope of the present utility model.
Claims (5)
1. double flow channel turbine by-pass means of deflation, comprise turbine volute (2), described turbine volute (2) is provided with two gas-entered passageways, these two gas-entered passageways are communicated with bleed passage respectively, be provided with spill valve seat (4) in the outlet port of two bleed passages, spill valve seat 4 (on) be provided with shared valve cover (6), it is characterized in that: described valve cover (6) and spill valve seat (4) are slidingly connected.
2. a kind of double flow channel turbine by-pass means of deflation according to claim 1, it is characterized in that: the both sides of described spill valve seat (4) are respectively equipped with the valve cover pressing plate, form guide groove respectively between described valve cover pressing plate and the spill valve seat (4), the both sides of described valve cover (6) are positioned at guide groove.
3. a kind of double flow channel turbine by-pass means of deflation according to claim 2, it is characterized in that: the cross section of described spill valve seat (4) and two bleed passages is rectangle, and two bleed passages are the symmetrical parallel setting.
4. a kind of double flow channel turbine by-pass means of deflation according to claim 1 is characterized in that: described valve cover (6) is in transmission connection with Power Drive Unit.
5. a kind of double flow channel turbine by-pass means of deflation according to claim 4, it is characterized in that: described Power Drive Unit comprises the actuator (10) that is installed on the turbine volute (2), described actuator (10) is connected with driving mechanism (9), driving mechanism (9) comprises driving gearshaft (8), driving gear (7) is installed on the described driving gearshaft (8), the driving rack (13) that is meshed with driving gear (7) is installed on valve cover (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205271990U CN201802477U (en) | 2010-09-14 | 2010-09-14 | Double-channel turbine bypass air eliminator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205271990U CN201802477U (en) | 2010-09-14 | 2010-09-14 | Double-channel turbine bypass air eliminator |
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| Publication Number | Publication Date |
|---|---|
| CN201802477U true CN201802477U (en) | 2011-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205271990U Expired - Lifetime CN201802477U (en) | 2010-09-14 | 2010-09-14 | Double-channel turbine bypass air eliminator |
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| CN (1) | CN201802477U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975105A (en) * | 2010-09-14 | 2011-02-16 | 康跃科技股份有限公司 | Double-channel turbine bypass bleeding device |
| CN104879211A (en) * | 2015-06-16 | 2015-09-02 | 潍柴动力股份有限公司 | Device and method for controlling turbocharger with asymmetric runners |
| CN104895667A (en) * | 2015-02-25 | 2015-09-09 | 康跃科技股份有限公司 | Variable-section exhaust gas bypass turbine for meeting demand of EGR (exhaust gas recirculation) recirculation |
| CN109154229A (en) * | 2016-05-12 | 2019-01-04 | 大陆汽车有限公司 | The turbine with double volute turbine cylinder and with the valve gear for improving outflow for exhaust-driven turbo-charger exhaust-gas turbo charger |
| CN109505695A (en) * | 2018-12-30 | 2019-03-22 | 江西腾勒动力有限公司 | A kind of exhaust gas bypass device for protecting turbocharger of motor |
| US10662870B2 (en) | 2015-02-25 | 2020-05-26 | Kangyue Technology Co., Ltd. | Variable geometry wastegate turbine |
-
2010
- 2010-09-14 CN CN2010205271990U patent/CN201802477U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975105A (en) * | 2010-09-14 | 2011-02-16 | 康跃科技股份有限公司 | Double-channel turbine bypass bleeding device |
| CN101975105B (en) * | 2010-09-14 | 2012-08-22 | 康跃科技股份有限公司 | Double-channel turbine bypass bleeding device |
| CN104895667A (en) * | 2015-02-25 | 2015-09-09 | 康跃科技股份有限公司 | Variable-section exhaust gas bypass turbine for meeting demand of EGR (exhaust gas recirculation) recirculation |
| US10662870B2 (en) | 2015-02-25 | 2020-05-26 | Kangyue Technology Co., Ltd. | Variable geometry wastegate turbine |
| CN104879211A (en) * | 2015-06-16 | 2015-09-02 | 潍柴动力股份有限公司 | Device and method for controlling turbocharger with asymmetric runners |
| CN104879211B (en) * | 2015-06-16 | 2017-12-05 | 潍柴动力股份有限公司 | The control device and control method of asymmetric path turbocharger |
| CN109154229A (en) * | 2016-05-12 | 2019-01-04 | 大陆汽车有限公司 | The turbine with double volute turbine cylinder and with the valve gear for improving outflow for exhaust-driven turbo-charger exhaust-gas turbo charger |
| US10767554B2 (en) | 2016-05-12 | 2020-09-08 | Continental Automotive Gmbh | Turbine for an exhaust gas turbocharger with a two-volute turbine housing and a valve arrangement having improved outflow |
| CN109154229B (en) * | 2016-05-12 | 2021-01-15 | 大陆汽车有限公司 | Turbine for an exhaust-gas turbocharger |
| CN109505695A (en) * | 2018-12-30 | 2019-03-22 | 江西腾勒动力有限公司 | A kind of exhaust gas bypass device for protecting turbocharger of motor |
| CN109505695B (en) * | 2018-12-30 | 2024-05-31 | 江西腾勒动力有限公司 | Waste gas bypass device for protecting engine turbocharger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110420 Effective date of abandoning: 20120822 |