CN103527324A - Differential-pressure type gas valve lift adjusting mechanism - Google Patents
Differential-pressure type gas valve lift adjusting mechanism Download PDFInfo
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- CN103527324A CN103527324A CN201310476833.0A CN201310476833A CN103527324A CN 103527324 A CN103527324 A CN 103527324A CN 201310476833 A CN201310476833 A CN 201310476833A CN 103527324 A CN103527324 A CN 103527324A
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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
Abstract
The invention provides a differential-pressure type gas valve lift adjusting mechanism and belongs to the technical field of mechanical design. The differential-pressure type gas valve lift adjusting mechanism comprises a gas compressor, an engine, a turbine, connecting pipes, a valve seat, a valve body, a rotary shaft, a containing cavity, a fixed body, penetrating pipes, an elastic component, a separating board, a rotary body and a connecting board. One end of the rotary body extends into the first penetrating pipe and makes sealing contact with the wall face of the first penetrating pipe, the other end of the rotary body is fixedly connected with the separating board, one end of the third connecting pipe is communicated with an engine gas inlet pipe, and the other end of the third connecting pipe penetrates through the outer wall face of the containing cavity and then is communicated with the containing cavity. When the pressure of the engine gas inlet pipe is high, the valve body is driven by the rotary body to rotate in the clockwise direction, the exhaust gas recirculation rate of the engine is high, and the detonation pressure of the engine is low; when the pressure of the engine gas inlet pipe is low, the valve body is driven by the rotary body to rotate in the anticlockwise direction, the exhaust gas recirculation rate of the engine is low, and the fuel consumption of the engine is low. The differential-pressure type gas valve lift adjusting mechanism is reasonable in design, simple in structure and suitable for an exhaust gas recirculation system of a supercharged engine.
Description
Technical field
What the present invention relates to is the exhaust gas recycling system in a kind of mechanical designing technique field, particularly a kind of differential valve lift controlling mechanism.
Background technique
The noxious emission of motor is a main source that causes pollution of atmosphere, along with the significance of environmental protection problem increases increasingly, reduces the important directions that this target of Engine's Harmful Emission becomes development of engine in the world today.Along with the consumption of world oil goods rises year by year, international oil price is high, and the Economy of diesel-oil vehicle is outstanding day by day, this make diesel engine in power train in vehicle application in occupation of consequence more and more.So carry out the research of Harmful Emissions of Diesel Engine controlling method, it is the person's that is engaged in Design Technology for Diesels top priority.Exhaust gas recycling system is to send the sub-fraction of the waste gas of diesel engine generation back to cylinder again.Exhaust gas recirculation will retarded combustion process owing to having inertia, thereby that is to say that velocity of combustion will slow down the pressure initiation process causing in firing chamber and slow down, main cause that oxynitrides can reduce that Here it is.In addition, improve ER EGR Rate and can make total extraction flow reduce, so in toxic emission, total pollutant output quantity will reduce relatively.When middling speed operating mode, motor needs larger exhaust gas recirculation rate, to reduce row's temperature, reduces to pollute; When low speed operating mode, motor needs less exhaust gas recirculation rate, to improve the air inflow of motor.
Through the retrieval of prior art document is found, China Patent No. ZL200410063439.5, patent name: electronic EGR gas control system, this patented technology provides a kind of device of control engine exhaust gas recirculation rate, can take into account preferably motor in high rotating speed operating mode; But the variation of its exhaust gas recirculation rate is to realize by special control structure, thus the more complicated that control system is become.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, a kind of differential valve lift controlling mechanism is provided, make its exhaust gas recirculation rate can self-control, take into account preferably the middle and slow speed of revolution operating mode of motor, and simple in structure, do not need special control mechanism.
The present invention is achieved through the following technical solutions, the present invention includes compressor air inlet machine pipe, gas compressor, engine air inlet tube, motor, engine exhaust pipe, turbine, turbine exhaust pipe, coupling shaft, the first connecting tube, the second connecting tube, the 3rd connecting tube, valve seat, valve body, cavity volume, fixed body, first runs through pipe, second runs through pipe, elastic member, dividing plate, solid of rotation and connecting plate, the air inlet/outlet of gas compressor respectively with the air outlet of compressor air inlet machine pipe, the suction port of engine air inlet tube is connected, the air inlet/outlet of motor respectively with the air outlet of engine air inlet tube, the suction port of engine exhaust pipe is connected, the air inlet/outlet of turbine respectively with the air outlet of engine exhaust pipe, the suction port of turbine exhaust pipe is connected, gas compressor is coaxially connected by coupling shaft with turbine, the upper end of valve seat is with interior threaded hole, the lower end of valve seat is with chamber volume, and the upper end of valve body is with outside thread, and valve body is arranged in valve seat, the interior threaded hole of the outside thread of valve body upper end and valve seat upper end matches, the lower end of valve body is arranged in chamber volume, and the longitudinal section of cavity volume is circular, fixed body, the longitudinal section of solid of rotation is circular-arc, cavity volume, fixed body, the cross section of solid of rotation is rectangular, and fixed body is arranged in cavity volume and is consolidated with the internal face of cavity volume, and first runs through pipe, second runs through pipe is arranged in fixed body, and first runs through pipe, second runs through pipe links together, and first runs through pipe, the second cross section that runs through pipe is rectangular, the second cross sectional area that runs through pipe is greater than the first cross sectional area that runs through pipe, dividing plate is arranged on second to be run through in pipe and with the second wall sealing that runs through pipe and contacts, one end of solid of rotation is stretched into first and is run through in pipe and with the first wall sealing that runs through pipe and contact, the other end and the dividing plate of solid of rotation are consolidated, the second upper wall surface that runs through pipe links together by elastic member and dividing plate, the axis of valve body and the dead in line of cavity volume, solid of rotation, connecting plate, valve body is consolidated, the two ends of the first connecting tube respectively with the suction port of chamber volume, turbine exhaust pipe is connected, the two ends of the second connecting tube respectively with the air outlet of chamber volume, compressor air inlet machine pipe is connected, and one end of the 3rd connecting tube is connected with engine air inlet tube, and the other end of the 3rd connecting tube is connected with cavity volume through after the outer wall of cavity volume.
Further, elastic member is spring in the present invention, and the first connecting tube, the 3rd connecting tube are uniform section pipe.
In working procedure of the present invention, solid of rotation can rotate freely in cavity volume; Solid of rotation, connecting plate, valve body are consolidated, and three can synchronous rotary.When engine charge overpressure is larger, cavity volume internal pressure is also larger, the pressure of dividing plate below is greater than the pressure of top, so dividing plate driven rotary body, valve body turn clockwise and pressure elasticity parts, it is large that throat area between valve body and valve seat becomes, engine exhaust recirculation rate increases, thereby the detonation pressure of motor and maximum combustion temperature are reduced; When engine charge overpressure hour, cavity volume internal pressure is also less, elastic reaction following rotator at elastic member is rotated counterclockwise, solid of rotation band moving valve is rotated counterclockwise, throat area between valve body and valve seat diminishes, engine exhaust recirculation rate reduces, thereby air input of engine by air is increased, fuel consumption reduction.
Compared with prior art, the present invention has following beneficial effect: the present invention is reasonable in design, simple in structure, be applicable to the exhaust gas recycling system with turbosupercharger, can take into account the middle and slow speed of revolution operating mode of motor, can make again exhaust gas recycling system not need special exhaust gas recirculation rate control mechanism.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of A-A section in Fig. 1;
Fig. 3 is the structural representation of B-B section in Fig. 2;
Fig. 4 is the structural representation of C-C section in Fig. 2;
Wherein: 1, compressor air inlet machine pipe, 2, gas compressor, 3, engine air inlet tube, 4, motor, 5, engine exhaust pipe, 6, turbine, 7, turbine exhaust pipe, 8, coupling shaft, 9, the first connecting tube, the 10, second connecting tube, the 11, the 3rd connecting tube, 12, valve seat, 13, valve body, 14, chamber volume, 15, cavity volume, 16, fixed body, 17, first runs through pipe, and 18, second runs through pipe, and 19, elastic member, 20, dividing plate, 21, solid of rotation, 22, connecting plate.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, the present embodiment be take technical solution of the present invention as prerequisite, provided detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment
As shown in Figures 1 to 4, the present invention includes compressor air inlet machine pipe 1, gas compressor 2, engine air inlet tube 3, motor 4, engine exhaust pipe 5, turbine 6, turbine exhaust pipe 7, coupling shaft 8, the first connecting tube 9, the second connecting tube 10, the 3rd connecting tube 11, valve seat 12, valve body 13, cavity volume 15, fixed body 16, first runs through pipe 17, second runs through pipe 18, elastic member 19, dividing plate 20, solid of rotation 21 and connecting plate 22, the air inlet/outlet of gas compressor 2 respectively with the air outlet of compressor air inlet machine pipe 1, the suction port of engine air inlet tube 3 is connected, the air inlet/outlet of motor 4 respectively with the air outlet of engine air inlet tube 3, the suction port of engine exhaust pipe 5 is connected, the air inlet/outlet of turbine 6 respectively with the air outlet of engine exhaust pipe 5, the suction port of turbine exhaust pipe 7 is connected, gas compressor 2 is coaxially connected by coupling shaft 8 with turbine 6, the upper end of valve seat 12 is with interior threaded hole, the lower end of valve seat 12 is with chamber volume 14, and the upper end of valve body 13 is with outside thread, and valve body 13 is arranged in valve seat 12, the interior threaded hole of the outside thread of valve body 13 upper ends and valve seat 12 upper ends matches, the lower end of valve body 13 is arranged in chamber volume 14, and the longitudinal section of cavity volume 15 is circular, fixed body 16, the longitudinal section of solid of rotation 21 is circular-arc, cavity volume 15, fixed body 16, the cross section of solid of rotation 21 is rectangular, and fixed body 16 is arranged in cavity volume 15 and is consolidated with the internal face of cavity volume 15, and first runs through pipe 17, second runs through pipe 18 is arranged in fixed body 16, and first runs through pipe 17, second runs through pipe 18 links together, and first runs through pipe 17, the second cross section that runs through pipe 18 is rectangular, the second cross sectional area that runs through pipe 18 is greater than first and runs through the cross sectional area of managing 17, dividing plate 20 is arranged on second to be run through in pipe 18 and runs through the sealing of pipe 18 wall and contact with second, one end of solid of rotation 21 is stretched into first and is run through in pipe 17 and run through the sealing of pipe 17 wall and contact with first, the other end of solid of rotation 21 and dividing plate 20 are consolidated, the second upper wall surface that runs through pipe 18 links together by elastic member 19 and dividing plate 20, the dead in line of the axis of valve body 13 and cavity volume 15, solid of rotation 21, connecting plate 22, valve body 13 is consolidated, the two ends of the first connecting tube 9 respectively with the suction port of chamber volume 14, turbine exhaust pipe 7 is connected, the two ends of the second connecting tube 10 respectively with the air outlet of chamber volume 14, compressor air inlet machine pipe 1 is connected, and one end of the 3rd connecting tube 11 is connected with engine air inlet tube 3, and the other end of the 3rd connecting tube 11 is connected with cavity volume 15 through after the outer wall of cavity volume 15, and elastic member 19 is spring, the first connecting tube 9, the 3rd connecting tube 11 is uniform section pipe.
In working procedure of the present invention, solid of rotation 21 can rotate freely in cavity volume 15; Solid of rotation 21, connecting plate 22, valve body 13 are consolidated, and three can synchronous rotary.When engine air inlet tube 3 internal pressures are when larger, cavity volume 15 internal pressures are also larger, the pressure of dividing plate 20 belows is greater than the pressure of top, so dividing plate 20 driven rotary bodies 21, valve body 13 turn clockwise and pressure elasticity parts 19, it is large that throat area between valve body 13 and valve seat 12 becomes, engine exhaust recirculation rate increases, thereby the detonation pressure of motor and maximum combustion temperature are reduced; When engine air inlet tube 3 internal pressures hour, cavity volume 15 internal pressures are also less, elastic reaction following rotator 21 at elastic member 19 is rotated counterclockwise, solid of rotation 21 band moving valves 13 are rotated counterclockwise, throat area between valve body 13 and valve seat 12 diminishes, engine exhaust recirculation rate reduces, thereby air input of engine by air is increased, fuel consumption reduction.
Claims (2)
1. a differential valve lift controlling mechanism, comprise compressor air inlet machine pipe (1), gas compressor (2), engine air inlet tube (3), motor (4), engine exhaust pipe (5), turbine (6), turbine exhaust pipe (7) and coupling shaft (8), the air inlet/outlet of gas compressor (2) respectively with the air outlet of compressor air inlet machine pipe (1), the suction port of engine air inlet tube (3) is connected, the air inlet/outlet of motor (4) respectively with the air outlet of engine air inlet tube (3), the suction port of engine exhaust pipe (5) is connected, the air inlet/outlet of turbine (6) respectively with the air outlet of engine exhaust pipe (5), the suction port of turbine exhaust pipe (7) is connected, gas compressor (2) is coaxially connected by coupling shaft (8) with turbine (6), it is characterized in that, also comprise the first connecting tube (9), the second connecting tube (10), the 3rd connecting tube (11), valve seat (12), valve body (13), cavity volume (15), fixed body (16), first runs through pipe (17), second runs through pipe (18), elastic member (19), dividing plate (20), solid of rotation (21) and connecting plate (22), the upper end of valve seat (12) is with interior threaded hole, the lower end of valve seat (12) is with chamber volume (14), the upper end of valve body (13) is with outside thread, valve body (13) is arranged in valve seat (12), the interior threaded hole of the outside thread of valve body (13) upper end and valve seat (12) upper end matches, the lower end of valve body (13) is arranged in chamber volume (14), the longitudinal section of cavity volume (15) is circular, fixed body (16), the longitudinal section of solid of rotation (21) is circular-arc, cavity volume (15), fixed body (16), the cross section of solid of rotation (21) is rectangular, fixed body (16) is arranged in cavity volume (15) and is consolidated with the internal face of cavity volume (15), first runs through pipe (17), second runs through pipe (18) is arranged in fixed body (16), first runs through pipe (17), second runs through pipe (18) links together, first runs through pipe (17), the second cross section that runs through pipe (18) is rectangular, the second cross sectional area that runs through pipe (18) is greater than the first cross sectional area that runs through pipe (17), dividing plate (20) is arranged on second to be run through in pipe (18) and with the second wall that runs through pipe (18) and seals and contact, one end of solid of rotation (21) is stretched into first and is run through in pipe (17) and with the first wall that runs through pipe (17) and seal and contact, the other end of solid of rotation (21) and dividing plate (20) are consolidated, the second upper wall surface that runs through pipe (18) links together by elastic member (19) and dividing plate (20), the dead in line of the axis of valve body (13) and cavity volume (15), solid of rotation (21), connecting plate (22), valve body (13) is consolidated, the two ends of the first connecting tube (9) respectively with the suction port of chamber volume (14), turbine exhaust pipe (7) is connected, the two ends of the second connecting tube (10) respectively with the air outlet of chamber volume (14), compressor air inlet machine pipe (1) is connected, one end of the 3rd connecting tube (11) is connected with engine air inlet tube (3), the other end of the 3rd connecting tube (11) is connected with cavity volume (15) through after the outer wall of cavity volume (15).
2. differential valve lift controlling mechanism according to claim 1, is characterized in that, elastic member (19) is spring, and the first connecting tube (9), the 3rd connecting tube (11) are uniform section pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310476833.0A CN103527324A (en) | 2013-10-13 | 2013-10-13 | Differential-pressure type gas valve lift adjusting mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310476833.0A CN103527324A (en) | 2013-10-13 | 2013-10-13 | Differential-pressure type gas valve lift adjusting mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN103527324A true CN103527324A (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310476833.0A Pending CN103527324A (en) | 2013-10-13 | 2013-10-13 | Differential-pressure type gas valve lift adjusting mechanism |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019964A (en) * | 2015-06-08 | 2015-11-04 | 上海交通大学 | Segmented air inlet valve device of engine |
| CN105019962A (en) * | 2015-06-08 | 2015-11-04 | 上海交通大学 | Differential pressure type air inflow amount control device |
| CN108915882A (en) * | 2018-04-28 | 2018-11-30 | 第拖拉机股份有限公司 | A kind of calculation method of achievable internal exhaust gas recirculation system |
| CN109139308A (en) * | 2015-03-19 | 2019-01-04 | 常州科普动力机械有限公司 | The working method of internal combustion engine EGR check valve |
-
2013
- 2013-10-13 CN CN201310476833.0A patent/CN103527324A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139308A (en) * | 2015-03-19 | 2019-01-04 | 常州科普动力机械有限公司 | The working method of internal combustion engine EGR check valve |
| CN105019964A (en) * | 2015-06-08 | 2015-11-04 | 上海交通大学 | Segmented air inlet valve device of engine |
| CN105019962A (en) * | 2015-06-08 | 2015-11-04 | 上海交通大学 | Differential pressure type air inflow amount control device |
| CN108915882A (en) * | 2018-04-28 | 2018-11-30 | 第拖拉机股份有限公司 | A kind of calculation method of achievable internal exhaust gas recirculation system |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140122 |
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| WD01 | Invention patent application deemed withdrawn after publication |