CN102808686A - Engine system with two air compressors - Google Patents

Engine system with two air compressors Download PDF

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Publication number
CN102808686A
CN102808686A CN2012103106102A CN201210310610A CN102808686A CN 102808686 A CN102808686 A CN 102808686A CN 2012103106102 A CN2012103106102 A CN 2012103106102A CN 201210310610 A CN201210310610 A CN 201210310610A CN 102808686 A CN102808686 A CN 102808686A
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CN
China
Prior art keywords
connecting tube
cavity volume
pipe
engine
turbine
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
CN2012103106102A
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Chinese (zh)
Inventor
李铁
许敏
黄伟
王家盛
高奕
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Shanghai Jiaotong University
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Shanghai Jiaotong University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Jiaotong University filed Critical Shanghai Jiaotong University
Priority to CN2012103106102A priority Critical patent/CN102808686A/en
Publication of CN102808686A publication Critical patent/CN102808686A/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 relates to an engine system with two air compressors, belonging to the technical field of internal combustion engines. The engine system comprises the two air compressors, an air inlet pipe, an engine, a gas exhaust pipe, two turbines, a volume chamber, connecting pipes, a moving body, a spring and two penetrating pipes, wherein the moving body is mounted in the volume chamber and is in sealed contact with the internal wall face of the volume chamber, both the first penetrating pipe and the second penetrating pipe penetrate through the left wall face and the right wall face of the moving body, and the lower wall face of the moving body is connected with the lower wall face of the volume chamber through the spring. When the engine is in low-speed working condition, the moving body moves upwards, only the first air compressor and the first turbine work, pulse energy is fully utilized, the inlet air pressure of the engine is higher, and the whole performance of the engine is better; and when the engine is in high-speed working condition, the moving body moves downwards, the first air compressor, the second air compressor, the first turbine and the second turbine simultaneously work, the pumping loss of the engine is less, and the whole performance of the engine is better. The engine system with the two air compressors is reasonable in design and simple in structure and is applicable to a turbocharging system with two turbochargers.

Description

The engine system that has dual-air compressor
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 engine system that has dual-air compressor.
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 engine system that has dual-air compressor 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, the right wall of cavity volume, cavity volume front face, cavity volume rear surface, spring, first connecting tube, second connecting tube, the 3rd connecting tube, the 4th connecting tube, the 5th connecting tube, first run through pipe, second and run through pipe, moving body, second gas compressor, second turbine, second sucking pipe, second steam outlet pipe, second coupling shaft and the 6th connecting tube; 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 air inlet tube, cavity volume upper 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 engine exhaust pipe, cavity volume left side wall respectively; The two ends of the 4th connecting tube are connected with the right wall of air outlet, cavity volume of second gas compressor respectively, and the two ends of the 5th connecting tube are connected with the right wall of suction port, cavity volume of second turbine respectively, and the two ends of the 6th connecting tube are connected with engine exhaust pipe, cavity volume lower wall surface respectively; The air outlet of second sucking pipe is connected with the suction port of second gas compressor; The suction port of second steam outlet pipe is connected with the air outlet of second turbine, and second gas compressor is connected through second coupling shaft with second turbine, and moving body is installed in the cavity volume and with the internal face sealing of cavity volume and contacts; First run through pipe, second run through Guan Jun run through moving body about two walls, the lower wall surface of moving body is connected with the cavity volume lower wall surface through spring.
Further; Second connecting tube, the 3rd connecting tube, the 4th connecting tube, the 5th connecting tube, first run through pipe, second and run through pipe and be the uniform section pipe and internal diameter is all identical in the present invention; The dead in line of the axis of second connecting tube and the 4th connecting tube; The axis that the axis, second that the dead in line of the axis of the 3rd connecting tube and the 5th connecting tube, the axis of the axis of second connecting tube, the 3rd connecting tube, first run through pipe runs through pipe 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 air inlet tube internal pressure was lower, and the cavity volume internal pressure of moving body top is also lower; Under the elastic reaction of spring, moving body moves up, thereby second connecting tube is cut off with the 4th connecting tube mutually; The 3rd connecting tube cuts off with the 5th 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 air inlet tube internal pressure was higher, and the cavity volume internal pressure of moving body top is also higher; Moving body moves down and pressure spring, thereby second connecting tube is connected with the 4th connecting tube, and the 3rd connecting tube is connected with the 5th 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.Be incorporated into the exhaust in the engine exhaust pipe in the cavity volume of moving body below through the 6th connecting tube, can prevent further that when high-speed working condition moving body from exceedingly moving down.
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 has the structural representation of the engine system of dual-air compressor for 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, 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, the 5th connecting tube, 22, first runs through pipe, and 23, second runs through pipe, and 24, moving body, 25, second gas compressor; 26, second turbine, 27, second sucking pipe, 28, second steam outlet pipe, 29, second coupling shaft, the 30, the 6th connecting tube.
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, the 5th connecting tube 21, first run through pipe 22, second and run through pipe 23, moving body 24, second gas compressor 25, second turbine 26, second sucking pipe 27, second steam outlet pipe 28, second coupling shaft 29 and the 6th connecting tube 30; 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 air inlet tube 3 cavity volume upper wall surfaces 10 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 engine exhaust pipe 5, cavity volume left side wall 12 respectively; The two ends of the 4th connecting tube 20 are connected with the right wall 13 of air outlet, cavity volume of second gas compressor 25 respectively; The two ends of the 5th connecting tube 21 are connected with the right wall 13 of suction port, cavity volume of second turbine 26 respectively; The two ends of the 6th connecting tube are connected with engine exhaust pipe, cavity volume lower wall surface respectively, and the air outlet of second sucking pipe 27 is connected with the suction port of second gas compressor 25, and the suction port of second steam outlet pipe 28 is connected with the air outlet of second turbine 26; Second gas compressor 25 is connected through second coupling shaft 29 with second turbine 26; Moving body 24 is installed in the cavity volume 9 and with the internal face sealing of cavity volume 9 and contact, first run through pipe 22, second run through manage 23 all run through moving body 24 about two walls, the lower wall surface of moving body 24 is connected with cavity volume lower wall surface 11 through spring 16; Second connecting tube 18, the 3rd connecting tube 19, the 4th connecting tube 20, the 5th connecting tube 21, first run through pipe 22, second and run through that pipe 23 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 4th connecting tube 20, the dead in line of the axis of the 3rd connecting tube 19 and the 5th connecting tube 21, the axis of the axis of second connecting tube 18, the 3rd connecting tube 19, first runs through axis that pipe 22 axis, second runs through pipe 23 all at grade.
In the present invention, moving body 24 can move up and down in cavity volume 9.When motor 4 was in the low speed operating mode, engine air inlet tube 3 internal pressures were lower, and the cavity volume internal pressure of moving body 24 tops is also lower; Under the elastic reaction of spring 16, moving body 24 moves up, thereby second connecting tube 18 is cut off with the 4th connecting tube 20 mutually; The 3rd connecting tube 19 cuts off with the 5th connecting tube 21 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 air inlet tube 3 internal pressures are higher, and the cavity volume internal pressure of moving body 24 tops is also higher, and moving body 24 moves down and pressure spring 16; Thereby second connecting tube 18 is connected with the 4th connecting tube 20; The 3rd connecting tube 19 is connected with the 5th connecting tube 21, and first gas compressor 2, second gas compressor 25, first turbine 6 and second turbine 26 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.Be incorporated into the exhaust in the engine exhaust pipe 5 in the cavity volume 9 of moving body 24 belows through the 6th connecting tube 30, can prevent further that when high-speed working condition moving body 24 from exceedingly moving down.Therefore, the present invention can take into account the high and low rotating speed operating mode of motor 4 preferably.

Claims (2)

1. engine system that has dual-air compressor; 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 that 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), the 5th connecting tube (21), first run through pipe (22), second and run through pipe (23), moving body (24), second gas compressor (25), second turbine (26), second sucking pipe (27), second steam outlet pipe (28), second coupling shaft (29) and the 6th connecting tube (30); 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 air inlet tube (3), cavity volume upper wall surface (10) 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 engine exhaust pipe (5), cavity volume left side wall (12) respectively; The two ends of the 4th connecting tube (20) are connected with air outlet, the right wall of cavity volume (13) of second gas compressor (25) respectively; The two ends of the 5th connecting tube (21) are connected with suction port, the right wall of cavity volume (13) of second turbine (26) respectively; The two ends of the 6th connecting tube (30) are connected with engine exhaust pipe (5), cavity volume lower wall surface (11) respectively; The air outlet of second sucking pipe (27) is connected with the suction port of second gas compressor (25); The suction port of second steam outlet pipe (28) is connected with the air outlet of second turbine (26); Second gas compressor (25) is connected through second coupling shaft (29) with second turbine (26); Moving body (24) is installed in the cavity volume (9) and with the internal face sealing of cavity volume (9) and contacts; First run through pipe (22), second run through pipe (23) all run through moving body (24) about two walls, the lower wall surface of moving body (24) is connected with cavity volume lower wall surface (11) through spring (16).
2. the engine system that has dual-air compressor according to claim 1; It is characterized in that said second connecting tube (18), the 3rd connecting tube (19), the 4th connecting tube (20), the 5th connecting tube (21), first run through pipe (22), second and run through that pipe (23) 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 4th connecting tube (20); The axis that the axis, second that the dead in line of the axis of the 3rd connecting tube (19) and the 5th connecting tube (21), the axis, first of the axis of second connecting tube (18), the 3rd connecting tube (19) run through pipe (22) runs through pipe (23) all at grade.
CN2012103106102A 2012-08-28 2012-08-28 Engine system with two air compressors Pending CN102808686A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012103106102A CN102808686A (en) 2012-08-28 2012-08-28 Engine system with two air compressors

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Application Number Priority Date Filing Date Title
CN2012103106102A CN102808686A (en) 2012-08-28 2012-08-28 Engine system with two air compressors

Publications (1)

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CN102808686A true CN102808686A (en) 2012-12-05

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61190121A (en) * 1985-02-18 1986-08-23 Nissan Motor Co Ltd Exhaust turbo-supercharger
JPH02181023A (en) * 1989-01-06 1990-07-13 Hitachi Ltd Exhaust turbine supercharging device
US20090301590A1 (en) * 2008-05-29 2009-12-10 Mfb Investments, Llc Fuel shutoff slide valve
CN202349272U (en) * 2011-12-05 2012-07-25 铜陵市兴达阀门总厂 Double gate valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61190121A (en) * 1985-02-18 1986-08-23 Nissan Motor Co Ltd Exhaust turbo-supercharger
JPH02181023A (en) * 1989-01-06 1990-07-13 Hitachi Ltd Exhaust turbine supercharging device
US20090301590A1 (en) * 2008-05-29 2009-12-10 Mfb Investments, Llc Fuel shutoff slide valve
CN202349272U (en) * 2011-12-05 2012-07-25 铜陵市兴达阀门总厂 Double gate valve

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Application publication date: 20121205