CN104653341A - Pneumatic air valve lift adjusting device - Google Patents
Pneumatic air valve lift adjusting device Download PDFInfo
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- CN104653341A CN104653341A CN201310574259.2A CN201310574259A CN104653341A CN 104653341 A CN104653341 A CN 104653341A CN 201310574259 A CN201310574259 A CN 201310574259A CN 104653341 A CN104653341 A CN 104653341A
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- pipe
- engine
- air inlet
- runs
- connecting tube
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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
A pneumatic air valve lift adjusting device belongs to the technical field of machinery design and comprises a compressor, an engine, a turbine, connecting pipes, a valve seat, a valve body, a rotating shaft, an accommodating cavity, a fixing body, through pipes, an elastic component, a separation plate, a rotation body and a connection plate. One end of the rotation body extends into a first through pipe and has a sealed contact with the wall surface of the first through pipe; the other end of the rotation body is fixedly connected with the separation plate; one end of a third connecting pipe is communicated with an air inlet pipe of the engine; and the other end of the third connecting pipe is communicated with the accommodating cavity. When the air inlet pipe of the engine possesses high pressure, the rotating body drives valve body to clockwise rotate; large exhausting and recirculation efficiency of the engine is achieved; low engine detonation pressure is acquired; when the air inlet pipe of the engine possesses low pressure, the rotating body drives valve body to counterclockwise rotate; low exhausting and recirculation efficiency of the engine is achieved; and low engine oil consumption is acquired. The pneumatic air valve lift adjusting device is rationally designed, simply structured and suitable for exhaust recirculation system of the engine.
Description
Technical field
What the present invention relates to is a kind of exhaust gas recycling system, particularly a kind of pneumatic type valve lift controlling device of technical field of mechanical design.
Background technique
The noxious emission of motor is the main source causing 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 remains high, and the Economy of diesel-oil vehicle is outstanding day by day, and this makes diesel engine in power train in vehicle application in occupation of more and more consequence.So carry out the research of Harmful Emissions of Diesel Engine controlling method, it is the top priority of the person that is engaged in Design Technology for Diesels.Exhaust gas recycling system is that the sub-fraction of the waste gas produced by diesel engine sends cylinder back to again.Exhaust gas recirculation will retarded combustion process owing to having inertia, and that is velocity of combustion will slow down thus cause the pressure initiation process in firing chamber to slow down, main cause that oxynitrides can reduce that Here it is.In addition, improve ER EGR Rate and total extraction flow can be made to reduce, therefore total in toxic emission 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 speed operation, motor needs less exhaust gas recirculation rate, to improve the air inflow of motor.
Through finding the retrieval of prior art document, China Patent No. ZL200410063439.5, patent name: electronic EGR gas control system, this patented technology provides a kind of device controlling engine exhaust recirculation rate, can take into account high speed conditions in motor preferably; But the change of its exhaust gas recirculation rate is realized 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, provide a kind of pneumatic type valve lift controlling device, make its exhaust gas recirculation rate can self-control, take into account the middle and slow speed of revolution operating mode of motor preferably, and structure is simple, does 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, first connecting tube, second connecting tube, 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, connecting plate and fixed 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 outside thread of valve body upper end and the interior threaded hole of valve seat upper end match, 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 arc-shaped, cavity volume, fixed body, the cross section of solid of rotation is rectangular, and fixed body to be arranged in cavity volume and to be 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, second cross section running through pipe is rectangular, second cross sectional area running through pipe is greater than the cross sectional area that first runs through pipe, dividing plate is arranged on second to be run through in pipe and to seal with the second wall running through pipe and contact, one end of solid of rotation is stretched into first and to be run through in pipe and seal with the first wall running through pipe and contact, the other end and the dividing plate of solid of rotation are consolidated, the axis of valve body and the dead in line of cavity volume, solid of rotation, connecting plate, valve body, fixed plate is all consolidated, and the right wall of fixed body is linked together by elastic member and fixed plate, 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 worn and is connected with 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, the cavity volume internal pressure of dividing plate right is also higher, solid of rotation band moving valve turns clockwise and elongated elastomeric member, throat area between valve body and valve seat becomes large, engine exhaust recirculation rate increases, thus the detonation pressure of motor and maximum combustion temperature are reduced; When engine charge overpressure is less, the cavity volume internal pressure of dividing plate right is also less, be rotated counterclockwise in the stretching action following rotator of elastic member, solid of rotation band moving valve is rotated counterclockwise, throat area between valve body and valve seat diminishes, engine exhaust recirculation rate reduces, thus air input of engine by air is increased, and oil consumption reduces.
Compared with prior art, the present invention has following beneficial effect: the present invention is reasonable in design, structure is simple, be applicable to the exhaust gas recycling system with turbosupercharger, the middle and slow speed of revolution operating mode of motor can be taken into account, exhaust gas recycling system can be made again 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, 23, fixed plate.
Embodiment
Elaborate to embodiments of the invention below in conjunction with accompanying drawing, the present embodiment, premised on technical solution of the present invention, give 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, first connecting tube 9, second connecting tube 10, 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, connecting plate 22 and fixed plate 23, 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 outside thread of valve body 13 upper end and the interior threaded hole of valve seat 12 upper end match, 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 arc-shaped, cavity volume 15, fixed body 16, the cross section of solid of rotation 21 is rectangular, and fixed body 16 to be arranged in cavity volume 15 and to be 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, second cross section running through pipe 18 is rectangular, second cross sectional area running through pipe 18 is greater than the cross sectional area that first runs through pipe 17, dividing plate 20 is arranged on second to be run through in pipe 18 and seals with the second wall running through pipe 18 and contact, one end of solid of rotation 21 is stretched into first and to be run through in pipe 17 and seal with the first wall running through pipe 17 and contact, the other end and the dividing plate 20 of solid of rotation 21 are consolidated, the axis of valve body 13 and the dead in line of cavity volume 15, solid of rotation 21, connecting plate 22, valve body 13, fixed plate 23 is all consolidated, and the right wall of fixed body 16 is linked together by elastic member 19 and fixed plate 23, 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, and elastic member 19 is spring, the first connecting tube 9, 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 pressure is larger, cavity volume 15 internal pressure of dividing plate 20 right is also higher, solid of rotation 21 is with moving valve 13 to turn clockwise and elongated elastomeric member 19, throat area between valve body 13 and valve seat 12 becomes large, engine exhaust recirculation rate increases, thus the detonation pressure of motor and maximum combustion temperature are reduced; When engine air inlet tube 3 internal pressure is less, cavity volume 15 internal pressure of dividing plate 20 right is also less, be rotated counterclockwise in the stretching action following rotator 21 of elastic member 19, solid of rotation 21 is with moving valve 13 to be rotated counterclockwise, throat area between valve body 13 and valve seat 12 diminishes, engine exhaust recirculation rate reduces, thus air input of engine by air is increased, and oil consumption reduces.
Claims (2)
1. a pneumatic type valve lift controlling device, comprises 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, and gas compressor (2) is coaxially connected by coupling shaft (8) with turbine (6), it is characterized in that, also comprises the first connecting tube (9), second connecting tube (10), 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), connecting plate (22) and fixed plate (23), 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), and the outside thread of valve body (13) upper end and the interior threaded hole of valve seat (12) upper end match, and 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 arc-shaped, cavity volume (15), fixed body (16), the cross section of solid of rotation (21) is rectangular, and fixed body (16) to be arranged in cavity volume (15) and to be 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), second cross section running through pipe (18) is rectangular, second cross sectional area running through pipe (18) is greater than the cross sectional area that first runs through pipe (17), dividing plate (20) is arranged on second to be run through in pipe (18) and to run through the wall of managing (18) and seal with second and contact, one end of solid of rotation (21) is stretched into first and to be run through in pipe (17) and to run through the wall of managing (17) and seal with first and contact, the other end and the dividing plate (20) of solid of rotation (21) are consolidated, the axis of valve body (13) and the dead in line of cavity volume (15), solid of rotation (21), connecting plate (22), valve body (13), fixed plate (23) is all consolidated, and the right wall of fixed body (16) is linked together by elastic member (19) and fixed plate (23), 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).
2. pneumatic type valve lift controlling device 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 |
|---|---|---|---|
| CN201310574259.2A CN104653341A (en) | 2013-11-17 | 2013-11-17 | Pneumatic air valve lift adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310574259.2A CN104653341A (en) | 2013-11-17 | 2013-11-17 | Pneumatic air valve lift adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104653341A true CN104653341A (en) | 2015-05-27 |
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ID=53244876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310574259.2A Pending CN104653341A (en) | 2013-11-17 | 2013-11-17 | Pneumatic air valve lift adjusting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104653341A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929723A (en) * | 2015-06-08 | 2015-09-23 | 上海交通大学 | Three-section type inlet valve mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1275833A1 (en) * | 2001-06-26 | 2003-01-15 | Iveco Motorenforschung AG | IC engine-turbocharger unit for a motor vehicle, in particular an industrial vehicle, with turbine power control |
| CN103291470A (en) * | 2013-05-28 | 2013-09-11 | 上海交通大学 | Pneumatic-control valve lift regulating mechanism |
| CN103291471A (en) * | 2013-05-28 | 2013-09-11 | 上海交通大学 | Air valve throat area control system |
| CN103291469A (en) * | 2013-05-24 | 2013-09-11 | 上海交通大学 | Rotary gas valve control mechanism |
| CN103382887A (en) * | 2013-07-25 | 2013-11-06 | 上海交通大学 | Chain transmission system with double-arc structure |
| CN103382886A (en) * | 2013-07-25 | 2013-11-06 | 上海交通大学 | Double through pipe type rotation mechanism |
-
2013
- 2013-11-17 CN CN201310574259.2A patent/CN104653341A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1275833A1 (en) * | 2001-06-26 | 2003-01-15 | Iveco Motorenforschung AG | IC engine-turbocharger unit for a motor vehicle, in particular an industrial vehicle, with turbine power control |
| CN103291469A (en) * | 2013-05-24 | 2013-09-11 | 上海交通大学 | Rotary gas valve control mechanism |
| CN103291470A (en) * | 2013-05-28 | 2013-09-11 | 上海交通大学 | Pneumatic-control valve lift regulating mechanism |
| CN103291471A (en) * | 2013-05-28 | 2013-09-11 | 上海交通大学 | Air valve throat area control system |
| CN103382887A (en) * | 2013-07-25 | 2013-11-06 | 上海交通大学 | Chain transmission system with double-arc structure |
| CN103382886A (en) * | 2013-07-25 | 2013-11-06 | 上海交通大学 | Double through pipe type rotation mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929723A (en) * | 2015-06-08 | 2015-09-23 | 上海交通大学 | Three-section type inlet valve mechanism |
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| PB01 | Publication | ||
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Application publication date: 20150527 |