CN102767424A - Communication device for circulating air course - Google Patents

Communication device for circulating air course Download PDF

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Publication number
CN102767424A
CN102767424A CN2012102462862A CN201210246286A CN102767424A CN 102767424 A CN102767424 A CN 102767424A CN 2012102462862 A CN2012102462862 A CN 2012102462862A CN 201210246286 A CN201210246286 A CN 201210246286A CN 102767424 A CN102767424 A CN 102767424A
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CN
China
Prior art keywords
cavity volume
tube
pipe
engine
moving
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.)
Pending
Application number
CN2012102462862A
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Chinese (zh)
Inventor
申昱
于沪平
梅琼风
贾敬华
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Shanghai Jiaotong University
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Shanghai Jiaotong University
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Application filed by Shanghai Jiaotong University filed Critical Shanghai Jiaotong University
Priority to CN2012102462862A priority Critical patent/CN102767424A/en
Publication of CN102767424A publication Critical patent/CN102767424A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Abstract

The invention discloses a communication device for a circulating air course in the technical field of internal combustion engines. The device comprises air compressors, an admission pipe, an engine, an exhaust pipe, turbines, a volume cavity, connecting pipes, a moving body, a spring and a through pipe, wherein the moving body is arranged in the volume cavity, and contacts the inner wall surface of the volume cavity in a sealed way; the through pipe penetrates through the left and right wall surfaces of the moving body; and the upper wall surface of the moving body is connected with the upper wall surface of the volume cavity through the spring. When the engine is under a low speed working condition, the moving body moves downwards, only the first air compressor and the first turbine work, pulse energy is fully utilized, the admission pressure of the engine is high, and the overall performance of the engine is high; and when the engine is under a high speed working condition, the moving body moves upwards, the first and second air compressors and the first and second turbines work at the same time, the pumping loss of the engine is low, and the overall performance of the engine is high. The device is rational in design, simple in structure and applicable to a turbocharging system with two turbochargers.

Description

Circulation gas circuit communication apparatus
Technical field
What the present invention relates to is a kind of turbo charge system of field of internal combustion engine, particularly a kind of circulation gas circuit communication apparatus.
Background technique
Along with the development of society and the raising of environmental requirement, the engine booster The Application of Technology more and more widely, in powerful motor mostly adopt turbocharging technology, to improve power and to reduce fuel consumption rate.Two kinds of basic patterns of turbo charge system are constant pressure charging system and impulse pressure charging system.Constant pressure charging system; The shared outlet pipe that volume is bigger of each cylinder; Exhaust piping is relatively simple for structure, and turbine equivalent circulation area is bigger, and it is constant that the outlet pipe internal pressure keeps basically; The pressure size is only relevant with the load and the rotating speed of motor, and the pressurization system that different cylinders are counted diesel engine can be designed for uniformity.Constant pressure charging system is when high-speed working condition, and pumping loss is less, and turbine efficiency is higher, and performance is more excellent; But when the low speed operating mode, can not make full use of the exhaust pulses energy.Impulse pressure charging system; According to each cylinder firing order; Two cylinders or three cylinders that exhaust is not disturbed are connected with same outlet pipe, and the exhaust piping caliber is less, and turbine equivalent circulation area is also less; The exhaust pulses energy can make full use of, low speed operating mode and instantaneous conditions better performances; But when high-speed working condition, pumping loss is bigger.This shows, if the turbine equivalent circulation area of a motor can change along with the conversion of operating mode, make turbine equivalent circulation area become big during high-speed working condition, turbine equivalent circulation area is diminished, this is comparatively desirable.
Retrieval through to the existing technology document is found; Chinese patent ZL200820226936.6; Patent name: a kind of gas compressor parallel connection supercharging device of turbosupercharger, this patented technology provides a kind of compressor housings variable device, can take into account the high and low rotating speed operating mode of motor preferably; But the variation of its housing needs the special control mechanism of a cover, thereby the more complicated that the pressurization system structure is become.
Summary of the invention
The present invention is directed to the deficiency of above-mentioned existing technology, a kind of circulation gas circuit communication apparatus is provided, make the pressurization system can self-control, take into account the high and low rotating speed operating mode of motor preferably, and simple in structure, do not need special control mechanism.
The present invention realizes through following technological scheme; The present invention includes: first sucking pipe, first gas compressor, engine air inlet tube, motor, engine exhaust pipe, first turbine, first steam outlet pipe, first coupling shaft, cavity volume, cavity volume upper wall surface, cavity volume lower wall surface, cavity volume left side wall, cavity volume right wall, cavity volume front face, cavity volume rear surface, spring, first connecting tube, second connecting tube, the 3rd connecting tube, the 4th connecting tube, run through pipe, moving body, second gas compressor, second turbine, second sucking pipe, second steam outlet pipe and second coupling shaft; The air inlet/outlet of first gas compressor is connected with the air outlet of first sucking pipe, the suction port of engine air inlet tube respectively; The air inlet/outlet of motor is connected with the air outlet of engine air inlet tube, the suction port of engine exhaust pipe respectively; The air inlet/outlet of first turbine is connected with the air outlet of engine exhaust pipe, the suction port of first steam outlet pipe respectively; First gas compressor is connected through first coupling shaft with first turbine; The cross section of cavity volume is a rectangular; Cavity volume upper wall surface, cavity volume lower wall surface, cavity volume left side wall, the right wall of cavity volume, cavity volume front face, cavity volume rear surface fix as one; The two ends of first connecting tube are connected with engine exhaust pipe, cavity volume lower wall surface respectively; The two ends of second connecting tube are connected with engine air inlet tube, cavity volume left side wall respectively; The two ends of the 3rd connecting tube are connected with the right wall of air outlet, cavity volume of second gas compressor respectively; The two ends of the 4th connecting tube are connected with the right wall of suction port, cavity volume of second turbine respectively, and the air outlet of second sucking pipe is connected with the suction port of second gas compressor, and the suction port of second steam outlet pipe is connected with the air outlet of second turbine; Second gas compressor is connected through second coupling shaft with second turbine; Moving body is installed in the cavity volume and with the internal face sealing of cavity volume and contact, run through manage run through moving body about two walls, the upper wall surface of moving body is connected with the cavity volume upper wall surface through spring.
Further; In the present invention second connecting tube, the 3rd connecting tube, run through pipe and be the uniform section pipe and internal diameter is all identical; The dead in line of the axis of second connecting tube and the 3rd connecting tube, the axis of the axis of second connecting tube, the 3rd connecting tube, run through pipe axis all at grade.
In the present invention, moving body can move up and down in cavity volume.When motor was in the low speed operating mode, the engine exhaust pipe internal pressure was lower, and the cavity volume internal pressure of moving body below is also lower; Under the elastic reaction of spring, moving body moves down, thereby first connecting tube is cut off with the 4th connecting tube mutually; Second connecting tube cuts off with the 3rd connecting tube mutually; First gas compressor and first turbine are only arranged in work in whole pressurization system, turbine equivalent inlet area is less, and pulse energy can make full use of; Engine charge pressure is bigger, and motor complete machine performance is more excellent; When motor was in high-speed working condition, the engine exhaust pipe internal pressure was higher, and the cavity volume internal pressure of moving body below is also higher; Moving body moves up and pressure spring, thereby first connecting tube is connected with the 4th connecting tube, and second connecting tube is connected with the 3rd connecting tube; First gas compressor, second gas compressor, first turbine and second turbine are all simultaneously in work in whole pressurization system; Turbine equivalent inlet area is bigger, and the motor pumping loss is less, and motor complete machine performance is more excellent.
Compared with prior art, the present invention has following beneficial effect and is: the present invention is reasonable in design, and is simple in structure, can take into account the high and low rotating speed operating mode of motor, can make pressurization system not need special control mechanism again.
Description of drawings
Fig. 1 is the circulate structural representation of gas circuit communication apparatus of the present invention;
Fig. 2 is the structural representation of A-A section among Fig. 1;
Wherein: 1, first sucking pipe, 2, first gas compressor, 3, engine air inlet tube, 4, motor, 5, engine exhaust pipe, 6, first turbine; 7, first steam outlet pipe, 8, first coupling shaft, 9, cavity volume, 10, the cavity volume upper wall surface, 11, the cavity volume lower wall surface, 12, cavity volume left side wall; 13, the right wall of cavity volume, 14, the cavity volume front face, 15, the cavity volume rear surface, 16, spring, 17, first connecting tube; 18, second connecting tube, the 19, the 3rd connecting tube, the 20, the 4th connecting tube, 21, run through pipe, 22, moving body; 23, second gas compressor, 24, second turbine, 25, second sucking pipe, 26, second steam outlet pipe, 27, second coupling shaft.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, present embodiment is a prerequisite with technological scheme of the present invention, provided detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment
As depicted in figs. 1 and 2; The present invention includes: first sucking pipe 1, first gas compressor 2, engine air inlet tube 3, motor 4, engine exhaust pipe 5, first turbine 6, first steam outlet pipe 7, first coupling shaft 8, cavity volume 9, cavity volume upper wall surface 10, cavity volume lower wall surface 11, cavity volume left side wall 12, the right wall 13 of cavity volume, cavity volume front face 14, cavity volume rear surface 15, spring 16, first connecting tube 17, second connecting tube 18, the 3rd connecting tube 19, the 4th connecting tube 20, run through pipe 21, moving body 22, second gas compressor 23, second turbine 24, second sucking pipe 25, second steam outlet pipe 26 and second coupling shaft 27; The air inlet/outlet of first gas compressor 2 is connected with the air outlet of first sucking pipe 1, the suction port of engine air inlet tube 3 respectively; The air inlet/outlet of motor 4 is connected with the air outlet of engine air inlet tube 3, the suction port of engine exhaust pipe 5 respectively; The air inlet/outlet of first turbine 6 is connected with the air outlet of engine exhaust pipe 5, the suction port of first steam outlet pipe 7 respectively; First gas compressor 2 is connected through first coupling shaft 8 with first turbine 6; The cross section of cavity volume 9 is a rectangular; Cavity volume upper wall surface 10, cavity volume lower wall surface 11, cavity volume left side wall 12, the right wall 13 of cavity volume, cavity volume front face 14, cavity volume rear surface 15 fix as one; The two ends of first connecting tube 17 are connected with engine exhaust pipe 5, cavity volume lower wall surface 11 respectively; The two ends of second connecting tube 18 are connected with engine air inlet tube 3, cavity volume left side wall 12 respectively; The two ends of the 3rd connecting tube 19 are connected with the right wall 13 of air outlet, cavity volume of second gas compressor 23 respectively; The two ends of the 4th connecting tube 20 are connected with the right wall 13 of suction port, cavity volume of second turbine 24 respectively; The air outlet of second sucking pipe 25 is connected with the suction port of second gas compressor 23, and the suction port of second steam outlet pipe 26 is connected with the air outlet of second turbine 24, and second gas compressor 23 is connected through second coupling shaft 27 with second turbine 24; Moving body 22 is installed in the cavity volume 9 and with the internal face sealing of cavity volume 9 and contacts; Run through pipe 21 run through moving body 22 about two walls, the upper wall surface of moving body 22 is connected with cavity volume upper wall surface 10 through spring 16, second connecting tube 18, the 3rd connecting tube 19, runs through and manages 21 and be the uniform section pipe and internal diameter is all identical; The dead in line of the axis of second connecting tube 18 and the 3rd connecting tube 19, runs through pipe 21 axis all at grade at the axis of the axis of second connecting tube 18, the 3rd connecting tube 19.
In the present invention, moving body 22 can move up and down in cavity volume 9.When motor 4 was in the low speed operating mode, engine exhaust pipe 5 internal pressures were lower, and cavity volume 9 internal pressures of moving body 22 belows are also lower; Under the elastic reaction of spring 16, moving body 22 moves down, thereby first connecting tube 17 is cut off with the 4th connecting tube 20 mutually; Second connecting tube 18 cuts off with the 3rd connecting tube 19 mutually; First gas compressor 2 and first turbine 6 are only arranged in work in whole pressurization system, turbine equivalent inlet area is less, and pulse energy can make full use of; Motor 4 suction pressures are bigger, and the complete machine performance of motor 4 is more excellent; When motor 4 is in high-speed working condition; Engine exhaust pipe 5 internal pressures are higher, and cavity volume 9 internal pressures of moving body 22 belows are also higher, and moving body 22 moves up and pressure spring 16; Thereby first connecting tube 17 is connected with the 4th connecting tube 20; Second connecting tube 18 is connected with the 3rd connecting tube 19, and first gas compressor 2, second gas compressor 23, first turbine 6 and second turbine 24 are all simultaneously in work in whole pressurization system, and turbine equivalent inlet area is bigger; The pumping loss of motor 4 is less, and motor 4 complete machine performances are more excellent.Therefore, the present invention can take into account the high and low rotating speed operating mode of motor 4 preferably.

Claims (2)

1. circulation gas circuit communication apparatus; Comprise: first sucking pipe (1), first gas compressor (2), engine air inlet tube (3), motor (4), engine exhaust pipe (5), first turbine (6), first steam outlet pipe (7) and first coupling shaft (8); The air inlet/outlet of first gas compressor (2) is connected with the air outlet of first sucking pipe (1), the suction port of engine air inlet tube (3) respectively; The air inlet/outlet of motor (4) is connected with the air outlet of engine air inlet tube (3), the suction port of engine exhaust pipe (5) respectively; The air inlet/outlet of first turbine (6) is connected with the air outlet of engine exhaust pipe (5), the suction port of first steam outlet pipe (7) respectively; First gas compressor (2) is connected through first coupling shaft (8) with first turbine (6); It is characterized in that also comprising cavity volume (9), cavity volume upper wall surface (10), cavity volume lower wall surface (11), cavity volume left side wall (12), cavity volume right wall (13), cavity volume front face (14), cavity volume rear surface (15), spring (16), first connecting tube (17), second connecting tube (18), the 3rd connecting tube (19), the 4th connecting tube (20), run through pipe (21), moving body (22), second gas compressor (23), second turbine (24), second sucking pipe (25), second steam outlet pipe (26) and second coupling shaft (27); The cross section of cavity volume (9) is a rectangular; Cavity volume upper wall surface (10), cavity volume lower wall surface (11), cavity volume left side wall (12), the right wall (13) of cavity volume, cavity volume front face (14), cavity volume rear surface (15) fix as one; The two ends of first connecting tube (17) are connected with engine exhaust pipe (5), cavity volume lower wall surface (11) respectively; The two ends of second connecting tube (18) are connected with engine air inlet tube (3), cavity volume left side wall (12) respectively; The two ends of the 3rd connecting tube (19) are connected with air outlet, the right wall of cavity volume (13) of second gas compressor (23) respectively; The two ends of the 4th connecting tube (20) are connected with suction port, the right wall of cavity volume (13) of second turbine (24) respectively; The air outlet of second sucking pipe (25) is connected with the suction port of second gas compressor (23); The suction port of second steam outlet pipe (26) is connected with the air outlet of second turbine (24); Second gas compressor (23) is connected through second coupling shaft (27) with second turbine (24); Moving body (22) is installed in the cavity volume (9) and with the internal face sealing of cavity volume (9) and contacts; Run through pipe (21) run through moving body (22) about two walls, the upper wall surface of moving body (22) is connected with cavity volume upper wall surface (10) through spring (16).
2. circulation gas circuit communication apparatus according to claim 1; It is characterized in that said second connecting tube (18), the 3rd connecting tube (19), run through that pipe (21) is the uniform section pipe and internal diameter is all identical; The dead in line of the axis of second connecting tube (18) and the 3rd connecting tube (19), the axis of the axis of second connecting tube (18), the 3rd connecting tube (19), run through pipe (21) axis all at grade.
CN2012102462862A 2012-07-16 2012-07-16 Communication device for circulating air course Pending CN102767424A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012102462862A CN102767424A (en) 2012-07-16 2012-07-16 Communication device for circulating air course

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Application Number Priority Date Filing Date Title
CN2012102462862A CN102767424A (en) 2012-07-16 2012-07-16 Communication device for circulating air course

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102966427A (en) * 2012-11-12 2013-03-13 上海交通大学 Opposed double-gas-compressor and double-turbine device
CN103670678A (en) * 2013-12-09 2014-03-26 浙江大学 Inlet pressure control device of charging turbine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4388802A (en) * 1980-12-12 1983-06-21 Mtu Motoren-Und Turbinen-Union Friedrichshafen Gmbh Internal combustion engine
DE19816840A1 (en) * 1998-04-16 1999-10-21 Mtu Friedrichshafen Gmbh Internal combustion engine with several exhaust gas turbochargers which can be optionally switched on and off
DE102005053977A1 (en) * 2005-11-11 2007-05-16 Volkswagen Ag Internal combustion engine e.g. petrol engine, for e.g. passenger car, has compressors driven by turbine, where outlet side of compressor is connected with fresh air inlet of engine by air supply pipe that has adjustable butterfly valve
CN2924201Y (en) * 2006-05-30 2007-07-18 宝山钢铁股份有限公司 Automatic cutoff and pressure release plunger valve for pressure meter
CN101403442A (en) * 2007-12-27 2009-04-08 奇瑞汽车股份有限公司 Valve and system used for turbosupercharger recirculation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4388802A (en) * 1980-12-12 1983-06-21 Mtu Motoren-Und Turbinen-Union Friedrichshafen Gmbh Internal combustion engine
DE19816840A1 (en) * 1998-04-16 1999-10-21 Mtu Friedrichshafen Gmbh Internal combustion engine with several exhaust gas turbochargers which can be optionally switched on and off
DE102005053977A1 (en) * 2005-11-11 2007-05-16 Volkswagen Ag Internal combustion engine e.g. petrol engine, for e.g. passenger car, has compressors driven by turbine, where outlet side of compressor is connected with fresh air inlet of engine by air supply pipe that has adjustable butterfly valve
CN2924201Y (en) * 2006-05-30 2007-07-18 宝山钢铁股份有限公司 Automatic cutoff and pressure release plunger valve for pressure meter
CN101403442A (en) * 2007-12-27 2009-04-08 奇瑞汽车股份有限公司 Valve and system used for turbosupercharger recirculation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102966427A (en) * 2012-11-12 2013-03-13 上海交通大学 Opposed double-gas-compressor and double-turbine device
CN103670678A (en) * 2013-12-09 2014-03-26 浙江大学 Inlet pressure control device of charging turbine
CN103670678B (en) * 2013-12-09 2016-01-20 浙江大学 A kind of suction pressure control gear of charging turbine

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Application publication date: 20121107