CN101285417A - Turbo-charger possessing decompression protection gasoline car - Google Patents
Turbo-charger possessing decompression protection gasoline car Download PDFInfo
- Publication number
- CN101285417A CN101285417A CNA2008100252365A CN200810025236A CN101285417A CN 101285417 A CN101285417 A CN 101285417A CN A2008100252365 A CNA2008100252365 A CN A2008100252365A CN 200810025236 A CN200810025236 A CN 200810025236A CN 101285417 A CN101285417 A CN 101285417A
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- decompression
- compressor
- decompression valves
- turbo
- turbosupercharger
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The invention provides a turbo supercharger for a gasoline sedan with the function of pressure relief protection. A turbo and an impeller of a gas compressor are arranged coaxially, the gas inlet side of a turbo casing is communicated with an exhaust pipe of an engine, and the impeller of the gas compressor is positioned inside a gas compressor shell. The turbo supercharger is characterized in that the side wall of a flow passage of the gas compressor is provided with a by-pass venthole communicated with the flow passage; and the by-pass venthole is provided with a decompression valve. The turbo supercharger ensures that the turbo supercharger for the gasoline sedan does not form over-pressure boost and surge when the engine stops suddenly or is idled peremptorily, thereby realizing the effective protection to the supercharger and the engine.
Description
Technical field
The present invention relates to technical field of engines, a kind of exhaust-gas turbocharger that is particularly suited for being applied in the spark ignition passenger car of more specifically saying so.
Background technique
Supercharging technology is one of major measure that improves engine performance, and what be most widely used is exhaust gas turbocharge.Turbosupercharger is the critical component of supercharged engine, it need not power, the exhaust gas-driven turbine high speed rotating that utilizes motor to discharge, send in the cylinder after driving the coaxial compresses fresh air of compressor impeller constant speed rotation the gas compressor inspiration, make the interior air density of cylinder increase sharply, oil inflame is more abundant, thereby improves the power of motor, improve the condition of burning, reduce emission of automobile wastes and pollute; Because oil inflame is more abundant, make the oil consumption of motor reduce about 5%～10% simultaneously.Turbosupercharger has motor and improves power, reduces oil consumption and improve effect such as motor vehicle emission.
Present domestic diesel oil is ripe relatively with turbocharging technology, the turbine case of diesel oil vehicle turbocharger and turbine material adapt to engine exhaust temperature below 800 ℃, the working speed of pressurized machine maintains about in the of 80000 rev/mins, and is not high relatively to aspects such as the anti-surge requirement of pressurized machine.By contrast, petrolic delivery temperature is up to more than 950 ℃, the maximum speed of pressurized machine reaches 200000 rev/mins, working speed reaches 140000 rev/mins, petrolic working condition is more complicated and changeable than diesel engine, the labor aptitude of pressurized machine under different operating modes is had higher requirements, such as the detonation pinking of avoiding motor, the surge of pressurized machine etc., therefore, existing diesel oil can not be applicable to petrol engine fully with turbocharging technology.
The applying working condition of spark ignition passenger car is comparatively complicated, the turbo charger speed that is complementary with it is very high, though engine speed can in time lower when engine sudden parking or urgent idling, but turbosupercharger still can high speed rotating because of rotator inertia, continuation is compressed the fresh air that sucks in and is desired to be sent to cylinder, but this moment, because the choke valve of motor has been closed or is almost totally closed, can not be entered cylinder by the high-pressure air after the turbosupercharger compression, will make the rapid moment raising of pressure ratio of pressurized machine like this, cause the surge of pressurized machine, damage or breaking-up pressurized machine, even can cause wider breaking-up to motor since these as yet not the technical barrier of fine solution, present, the domestic relevant product that does not occur as yet, and the technology contents relative complex of external product costs an arm and a leg, and is difficult to extensive use.
Summary of the invention
The present invention is for avoiding above-mentioned existing in prior technology deficiency; a kind of spark ignition passenger car turbosupercharger that has decompression protection is provided; make it possible to satisfy spark ignition passenger car and do not form supercharging and surge when engine sudden parking or the urgent idling, and then realize effective protection pressurized machine itself and motor with turbosupercharger.
The technological scheme that technical solution problem of the present invention is adopted is:
The present invention has the spark ignition passenger car turbosupercharger of decompression protection, and its structural type is turbine and the coaxial setting of compressor impeller, and the air inlet side of turbine case is communicated with engine exhaust pipe, and compressor impeller is positioned at compressor casing.
Structural feature of the present invention is on the runner sidewall of gas compressor, and the bypass pore that communicates with runner is set; On described bypass pore, Decompression valves is set.
Structural feature of the present invention also is:
Described bypass pore is positioned on the runner exit one distolateral wall of described gas compressor.
Described Decompression valves is set to diaphragm type structure, and described diaphragm type structure is with diaphragm the Decompression valves inner chamber to be divided into control chamber and active chamber; Described control chamber is to communicate with the engine charge pipeline by the Decompression valves valve; Described active chamber is to form to be communicated with between bypass pore and compressor air inlet machine side.
Described Decompression valves is to be fixedly installed on the compressor casing by attachment screw with its Decompression valves valve gap.
Compared with prior art, beneficial effect of the present invention is embodied in:
When 1, enforcement of the present invention made the motor proper functioning, Decompression valves was in closed condition, and the bypass pore in the blower outlet runner is by shutoff, and pressurized air all enters cylinder, realized turbosupercharging; Stopping in emergency or during urgent idling; the engine throttle valve is closed or is almost totally closed; blower outlet place air pressure raises rapidly; moment forms high-pressure air opens Decompression valves; bypass pore in the blower outlet runner is by open-minded, and the high-pressure air that the blower outlet place is formed is released, and pressurized machine does not produce high pressure ratio; avoid pressurized machine to cross the generation of supercharging and surging phenomenon, protected the proper functioning of pressurized machine and motor effectively.
2, the present invention is simple in structure, easy to implement, can not bring increase bigger on the cost.
Description of drawings:
Fig. 1 is a turbosupercharger internal structure schematic representation of the present invention.
Fig. 2 is Decompression valves rigging position of the present invention and structural representation.
Number in the figure: support in 1 turbine case, 2 turbines, 3 engine charge pipelines, 4 compressor air inlet machine sides, 18 compressor impellers, 20 compressor casings, 21 bypass pores, 22 Decompression valvess, 30 attachment screws, 31 Decompression valves valves, 32 Decompression valves springs, 33 diaphragms, 34 diaphragms, 35 diaphragms support outward, 36 valve gaps.
Below pass through embodiment, and the invention will be further described in conjunction with the accompanying drawings.
Embodiment:
Referring to Fig. 1, form routinely, turbine 2 and compressor impeller 18 coaxial settings, the air inlet side of turbine case 1 is communicated with engine exhaust pipe, and compressor impeller 18 is arranged in compressor casing 20.Exhaust gas-driven turbine 2 high speed rotating that motor is discharged, drive coaxial compressor impeller 18 constant speed rotation, send into cylinder after gas compressor one side inhaled air compressed, make that air density increases exponentially in the cylinder, and then obtain the effect of supercharging.
In the present embodiment, be on the runner sidewall of gas compressor, the bypass pore 21 that communicates with runner is set; Decompression valves 22 is set on bypass pore 21.
During the motor proper functioning, Decompression valves is in closed condition, and the bypass pore in the blower outlet runner is by shutoff, and pressurized air all enters cylinder, realizes turbosupercharging; Stopping in emergency or during urgent idling; the engine throttle valve is closed or is almost totally closed; blower outlet place air pressure raises rapidly; moment forms high-pressure air opens Decompression valves; bypass pore in the blower outlet runner is by open-minded, and the high-pressure air that the blower outlet place is formed is released, and pressurized machine does not produce high pressure ratio; avoid pressurized machine to cross the generation of supercharging and surging phenomenon, protected the proper functioning of pressurized machine and motor effectively.
Referring to Fig. 1, Fig. 2, in the present embodiment, bypass pore 21 is positioned on the runner exit one distolateral wall of compressor casing 20.Decompression valves 22 specifically is set is diaphragm type structure, diaphragm type structure is with diaphragm 34 the Decompression valves inner chamber to be divided into control chamber and active chamber, and control chamber is to communicate with engine charge pipeline 3 by Decompression valves valve 31; Active chamber is to form to be communicated with between bypass pore 21 and compressor air inlet machine side 4; Decompression valves is fixedlyed connected with compressor casing 20 by attachment screw 30 with Decompression valves valve gap 36.
In concrete the enforcement, in the control chamber of Decompression valves, be provided with in Decompression valves spring 2 and the diaphragm and support 33, in the Decompression valves active chamber, be provided with diaphragm and support 35 outward.
In the motor normal working, the elastic force acting in conjunction of gas pressure and Decompression valves spring 32 has overcome compressed-air actuated active force in the compressor casing runner in the engine charge pipeline 3, make Decompression valves diaphragm 34 cover on the bypass pore 21, formation is to the shutoff of bypass pore 21, and the pressurized air of gas compressor all enters in the engine cylinder; When engine sudden parking or urgent idling, 31 li of Decompression valves valves are vacuum or vacuum almost, pressurized air in the compressor passage to Decompression valves outer support 35 and the active force of the diaphragm 34 air effect power that overcomes 31 li of spring 32 and Decompression valves valves make Decompression valves diaphragm 34 break away from the shutoff of bypass pores 21, pressurized air in the gas compressor flows into compressor air inlet machine side 4 by active chamber in the Decompression valves, prevented that effectively pressurized machine from crossing the surge that supercharging causes, guaranteed the proper functioning of pressurized machine and motor.
In concrete the enforcement,, require 240 ℃ of Decompression valves diaphragm heatproofs, do not produce breakage, crackle and distortion through after the action 500,000 times according to the operating mode of motor; The Decompression valves spring is in 260 ℃ temperature, and the parameters and the performance of working after 1,000,000 times still remain within the allowed band.
Claims (4)
1, the spark ignition passenger car turbosupercharger that has decompression protection, turbine (2) and the coaxial setting of compressor impeller (18), the air inlet side of turbine case (1) is communicated with engine exhaust pipe, and compressor impeller (18) is positioned at compressor casing (20); It is characterized in that on the runner sidewall of gas compressor, the bypass pore (21) that communicates with described runner is set; Decompression valves (22) is set on described bypass pore (21).
2, the spark ignition passenger car turbosupercharger that has decompression protection according to claim 1 is characterized in that described bypass pore (21) is positioned on the runner exit one distolateral wall of described gas compressor.
3, the spark ignition passenger car turbosupercharger that has decompression protection according to claim 1 is characterized in that described Decompression valves (22) is set to diaphragm type structure, and described diaphragm type structure is with diaphragm (34) the Decompression valves inner chamber to be divided into control chamber and active chamber; Described control chamber is to communicate with engine charge pipeline (3) by Decompression valves valve (31); Described active chamber is to form to be communicated with between bypass pore (21) and compressor air inlet machine side (4).
4, the spark ignition passenger car turbosupercharger that has decompression protection according to claim 1 is characterized in that described Decompression valves is to be fixedly installed on the compressor casing (20) by attachment screw (30) with its Decompression valves valve gap (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100252365A CN101285417A (en) | 2008-04-30 | 2008-04-30 | Turbo-charger possessing decompression protection gasoline car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100252365A CN101285417A (en) | 2008-04-30 | 2008-04-30 | Turbo-charger possessing decompression protection gasoline car |
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| CN101285417A true CN101285417A (en) | 2008-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100252365A Pending CN101285417A (en) | 2008-04-30 | 2008-04-30 | Turbo-charger possessing decompression protection gasoline car |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678276A (en) * | 2012-05-21 | 2012-09-19 | 上海交通大学 | Volume cavity type surge adjusting mechanism of gas compressor |
| CN102748123A (en) * | 2012-06-27 | 2012-10-24 | 北京航空航天大学 | Anti-surge control device of turbocharger of aviation piston engine |
| CN103527310A (en) * | 2013-09-17 | 2014-01-22 | 东风南充汽车有限公司 | Automobile supercharger integrated anti-surge valve |
| CN103670673A (en) * | 2012-09-26 | 2014-03-26 | 重庆长安汽车股份有限公司 | Small-displacement gasoline engine supercharger assembly |
| CN105065109A (en) * | 2015-08-06 | 2015-11-18 | 中国北方发动机研究所(天津) | Wide-flow-range turbocharger |
| CN103835998B (en) * | 2012-11-21 | 2016-05-18 | 株式会社Ihi | Booster |
| WO2016082111A1 (en) * | 2014-11-25 | 2016-06-02 | 浙江吉利汽车研究院有限公司 | Noise reduction structure of supercharger |
| CN108979844A (en) * | 2018-09-07 | 2018-12-11 | 厦门锡恩重卡科技有限公司 | Turbo charging installation and its application method |
| CN111577446A (en) * | 2020-06-08 | 2020-08-25 | 常州环能涡轮动力股份有限公司 | Turbocharger |
-
2008
- 2008-04-30 CN CNA2008100252365A patent/CN101285417A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678276A (en) * | 2012-05-21 | 2012-09-19 | 上海交通大学 | Volume cavity type surge adjusting mechanism of gas compressor |
| CN102748123B (en) * | 2012-06-27 | 2014-07-30 | 北京航空航天大学 | Anti-surge control device of turbocharger of aviation piston engine |
| CN102748123A (en) * | 2012-06-27 | 2012-10-24 | 北京航空航天大学 | Anti-surge control device of turbocharger of aviation piston engine |
| CN103670673B (en) * | 2012-09-26 | 2016-03-02 | 重庆长安汽车股份有限公司 | A kind of small-displacement gasoline engine supercharger assembly |
| CN103670673A (en) * | 2012-09-26 | 2014-03-26 | 重庆长安汽车股份有限公司 | Small-displacement gasoline engine supercharger assembly |
| CN103835998B (en) * | 2012-11-21 | 2016-05-18 | 株式会社Ihi | Booster |
| US9494163B2 (en) | 2012-11-21 | 2016-11-15 | Ihi Corporation | Turbocharger |
| CN103527310A (en) * | 2013-09-17 | 2014-01-22 | 东风南充汽车有限公司 | Automobile supercharger integrated anti-surge valve |
| WO2016082111A1 (en) * | 2014-11-25 | 2016-06-02 | 浙江吉利汽车研究院有限公司 | Noise reduction structure of supercharger |
| CN105065109A (en) * | 2015-08-06 | 2015-11-18 | 中国北方发动机研究所(天津) | Wide-flow-range turbocharger |
| CN108979844A (en) * | 2018-09-07 | 2018-12-11 | 厦门锡恩重卡科技有限公司 | Turbo charging installation and its application method |
| CN108979844B (en) * | 2018-09-07 | 2024-04-19 | 厦门锡恩重卡科技有限公司 | Turbocharger device and method of using the same |
| CN111577446A (en) * | 2020-06-08 | 2020-08-25 | 常州环能涡轮动力股份有限公司 | Turbocharger |
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Open date: 20081015 |