CN112761775A - Anti-surge gas engine pressurization system - Google Patents
Anti-surge gas engine pressurization system Download PDFInfo
- Publication number
- CN112761775A CN112761775A CN202110047010.0A CN202110047010A CN112761775A CN 112761775 A CN112761775 A CN 112761775A CN 202110047010 A CN202110047010 A CN 202110047010A CN 112761775 A CN112761775 A CN 112761775A
- Authority
- CN
- China
- Prior art keywords
- assembly
- surge
- engine
- air inlet
- connecting pipe
- 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.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/04—Antivibration arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
- F02B37/183—Arrangements of bypass valves or actuators therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/22—Control of the pumps by varying cross-section of exhaust passages or air passages, e.g. by throttling turbine inlets or outlets or by varying effective number of guide conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/14—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/23—Layout, e.g. schematics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The invention relates to the technical field of engines, in particular to an anti-surge gas engine pressurization system. Including anti-surge valve assembly, anti-surge valve gas outlet connecting pipe assembly and anti-surge valve vacuum port connecting pipe assembly, the integrated installation of anti-surge valve assembly air inlet is on engine intake pipe, anti-surge valve assembly gas outlet is connected with first intake connecting pipe through anti-surge valve gas outlet connecting pipe assembly, the vacuum port of anti-surge valve assembly is connected through the return bend that admits air behind anti-surge valve vacuum port connecting pipe assembly and the throttle body assembly. The anti-surge valve assembly is integrally assembled on the air inlet connecting pipe of the engine, so that the connecting pipeline of the air inlet of the anti-surge valve is saved, and the arrangement of the engine is more compact.
Description
Technical Field
The invention relates to the technical field of engines, in particular to an anti-surge gas engine pressurization system.
Background
The gas engine supercharging system is mainly applied to a natural gas exhaust gas turbocharging engine equipped with a throttle valve, and the existing natural gas engine supercharger usually has a surge problem.
The invention patent with the publication number of CN 1046966113 discloses a gas machine and a gas inlet device thereof, wherein a pipeline connecting pipe is provided with an anti-surge valve for controlling the conduction state of the pipeline connecting pipe, when an engine runs at a high speed and a throttle valve tends to be closed, the anti-surge valve is conducted, otherwise, the anti-surge valve is in a normally closed state, so that the occurrence of surge is prevented, and the transient response is improved on the premise of ensuring the steady-state performance of the gas machine. However, the air inlet, the air outlet and the vacuum port of the anti-surge valve with the structure are respectively communicated with the air inlet system through a pipeline, the pipeline is complex, and the actual production and application cost is high. In addition, the structure directly adopts a straight-through pipeline connection between the throttle valve and the air inlet connecting pipe of the engine, corresponding air inflow can be set manually through calibration only by depending on the opening degree of EGR, measurement and accurate control of the air inflow by the engine cannot be realized, supercharging pressure fluctuation is easily caused, and faults such as pipeline air inlet jitter and even supercharger surge are caused.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an anti-surge gas engine pressurization system which is more compact in engine arrangement, simple in pipeline and low in cost.
The technical scheme of the invention is as follows: an anti-surge gas engine pressurization system comprises a first air inlet connecting pipe, a supercharger, an engine exhaust manifold, a cooler front EGR air inlet pipe, an engine EGR cooler assembly, a cooler rear EGR air inlet pipe, an engine EGR valve assembly, a mixer assembly, an engine air inlet manifold, an engine air inlet connecting pipe, a third air inlet connecting pipe, a throttle body assembly and a second air inlet connecting pipe, and also comprises an anti-surge valve assembly, an anti-surge valve air outlet connecting pipe assembly and an anti-surge valve vacuum port connecting pipe assembly, the air inlet of the anti-surge valve assembly is integrally arranged on the air inlet connecting pipe of the engine, the air outlet of the anti-surge valve assembly is connected with the first air inlet connecting pipe through the air outlet connecting pipe assembly of the anti-surge valve, and the vacuum port of the anti-surge valve assembly is connected with the air inlet bent pipe behind the throttle body assembly through the anti-surge valve vacuum port connecting pipe assembly.
Preferably, the air flow sensor assembly is arranged on the Venturi tube, and a data output end of the air flow sensor assembly is electrically connected with a data input end of an engine EECU.
Preferably, the anti-surge valve assembly is arranged on the inner side of an air inlet connecting pipe of the engine. The anti-surge valve is arranged on one side, close to the inside, of the air inlet connecting pipe instead of the upper side or other positions, so that the space of an engine can be better saved, and more arrangement spaces can be avoided for chassis body pipelines and the like.
Preferably, the air inlet of the anti-surge valve assembly is connected with the air inlet connecting pipe of the engine through a flange.
Preferably, the air outlet of the anti-surge valve assembly is connected with a bent connector through a flange, a bulge structure is arranged at the end part of the bent connector, and the bulge structure is connected with the connecting pipe assembly of the air outlet of the anti-surge valve. The anti-surge valve outlet adopts a bulge-type elbow joint with one end flange to be connected with an anti-surge valve outlet pipe assembly, the flange joint is adopted near the anti-surge valve end, and on the basis that the pipe diameter is not changed, the pipeline is enabled to protrude forward as far as possible to be shorter, the structure is simple, and the sealing is reliable and stable in the using process. The other end of the pipeline is processed simply by adopting a bulge type structure, is convenient to clamp and connect with the rubber tube, and has lower clamp assembly cost.
Preferably, the anti-surge valve gas outlet connecting pipe assembly comprises silica gel pipe sections located at two ends and steel pipe sections used for connecting the silica gel pipe sections at the two ends. Compare in pure steel pipe design, weight is lighter to the risk of shattering when effectively reducing the engine vibration, the shock resistance is better.
Preferably, the steel pipe section is provided with two movable pipe clamps in a sliding manner. The steel pipe section is provided with two movable pipe clamps, so that the transverse position can be adjusted during assembly, and the assembly operation is convenient.
Preferably, the third air inlet connecting pipe comprises a hose section connected with the air outlet of the venturi tube and a steel pipe section connected with the throttle body assembly, and the hose section is connected with the throttle body assembly through a flange. Venturi tube and throttle valve body adopt one section hose plus with the flanged steel pipe connection, the hose is connected with Venturi tube and does benefit to the installation convenience, flanged steel pipe and throttle valve connection can better guarantee in the assembly and the leakproofness of throttle valve.
Preferably, the cooler rear EGR inlet pipe is a bellows. The EGR intake pipe bypasses the front end of the engine from the EGR cooler assembly behind the cooler, and the pipeline structure adopts a form of short ripples at the middle section, so that the ripples are slightly adjustable on the premise of ensuring the reliability of the steel pipe, and the on-site assembly is convenient.
Preferably, the engine EGR valve assembly is fixed to the mixer assembly by a flange. The EGR valve assembly can be directly assembled on the mixer flange, so that the connection of intermediate pipelines is reduced, the arrangement space is saved, and the cost is reduced.
The invention has the beneficial effects that: the anti-surge valve assembly is integrally assembled on the air inlet connecting pipe of the engine, so that the connecting pipeline of the air inlet of the anti-surge valve is saved, the arrangement of the engine is more compact, and meanwhile, the production and assembly cost is reduced. Adopt integrated air flowmeter's venturi structure between throttle body assembly and engine intake takeover, can feed back differential pressure to EECU through integrated air flow sensor in real time, carry out intelligent accurate control through EECU to the air input of engine, effectively promote the combustion efficiency of engine.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a first angular connection of an anti-surge valve assembly of the present invention to an engine intake nozzle;
FIG. 3 is a schematic view of a second angular connection of the anti-surge valve assembly of the present invention to the intake air connection of the engine;
FIG. 4 is a schematic view of the working principle of the anti-surge valve of the present invention;
fig. 5 is a schematic structural diagram of the venturi tube of the present invention.
In the figure: 1-first intake connection pipe, 2-supercharger, 3-engine exhaust manifold, 4-engine EGR cooler assembly, 5-anti-surge valve outlet connection pipe assembly, 6-cooler rear EGR intake pipe, 7-anti-surge valve assembly, 8-engine intake connection pipe, 9-venturi pipe, 10-anti-surge valve vacuum port connection pipe assembly, 11-engine intake manifold, 12-throttle body assembly, 13-mixer assembly, 14-engine EGR valve assembly, 15-second intake connection pipe, 16-third intake connection pipe, 17-cooler front EGR intake pipe, 18-air flow sensor assembly
Detailed Description
The invention will be further described in detail with reference to the following drawings and specific examples, which are not intended to limit the invention, but are for clear understanding.
As shown in fig. 1, an anti-surge gas engine supercharging system comprises a first air inlet connecting pipe 1, a supercharger 2, an engine exhaust manifold 3, a cooler front EGR air inlet pipe 17, an engine EGR cooler assembly 4, a cooler rear EGR air inlet pipe 6, an engine EGR valve assembly 14, a mixer assembly 13, an engine air inlet manifold 11, an engine air inlet connecting pipe 8, a third air inlet connecting pipe 16, a throttle body assembly 12 and a second air inlet connecting pipe 15, and further comprises an anti-surge valve assembly 7, an anti-surge valve air outlet connecting pipe assembly 5, an anti-surge valve vacuum port connecting pipe assembly 10, a venturi tube 9 and an air flow sensor assembly 18.
The inlet of a compressor of the supercharger 2 is connected with the air inlet connecting pipe 1, the inlet of a turbine of the supercharger 2 is connected with the exhaust manifold 3, the exhaust manifold 3 is connected with the engine body, the EGR cooler assembly 4 of the engine is connected with the position between five cylinders and six cylinders of the exhaust manifold 3 through the EGR inlet pipe 17 in front of the cooler, and the EGR cooler assembly 4 is connected with the EGR valve assembly 14 of the engine through the EGR inlet pipe 6 behind the cooler. The anti-surge valve assembly 7 is arranged on the inner side of an engine air inlet connecting pipe 8, an air inlet of the anti-surge valve assembly 7 is integrally installed on the engine air inlet connecting pipe 8, and the air inlet of the anti-surge valve assembly 7 is connected with the engine air inlet connecting pipe 8 through a flange. The air outlet of the anti-surge valve assembly 7 is connected with the first air inlet connecting pipe 1 through an air outlet connecting pipe assembly 5 of the anti-surge valve, and the vacuum port of the anti-surge valve assembly 7 is connected with an air inlet bent pipe behind the throttle body assembly 12 through a vacuum port connecting pipe assembly 10 of the anti-surge valve. The pressure detected at the vacuum port of the anti-surge valve assembly 7 is the gas pressure at the engine intake manifold 11. The air inlet of the Venturi tube 9 is connected with the air inlet connecting tube 8 of the engine, the air outlet of the Venturi tube 9 is connected with the throttle body assembly 12 through the third air inlet connecting tube 16, the air flow sensor assembly 18 is arranged on the Venturi tube 9, and the data output end of the air flow sensor assembly 18 is electrically connected with the data input end of the EECU of the engine. The throttle body assembly 12 is connected with the mixer assembly 13 through an air inlet elbow. The mixer assembly 13 is connected with the engine intake manifold 11 through a second intake connecting pipe 15. The EGR valve assembly 14 and the throttle body assembly 12 are electrically connected with the engine EECU.
As shown in figure 2, a flange with the same size as the air inlet of the anti-surge valve assembly is designed on the air inlet connecting pipe 8 of the engine, the flange and the air inlet connecting pipe 8 of the engine are integrally cast, the anti-surge valve assembly 7 is fixed on the flange through two bolts, connecting pipelines of the air inlet of the anti-surge valve are saved, the arrangement of the engine is more compact, and meanwhile, the production and assembly cost is reduced. The air outlet of the anti-surge valve assembly 7 is connected with an elbow connector through a flange, the end part of the elbow connector is provided with a bulge structure, and the bulge structure is connected with the anti-surge valve air outlet connecting pipe assembly 5. The anti-surge valve gas outlet connecting pipe assembly 5 comprises silica gel pipe sections located at two ends and a steel pipe section used for connecting the silica gel pipe sections at the two ends, and two movable pipe clamps are arranged on the steel pipe section in a sliding mode.
As shown in fig. 3, the basic operation of the anti-surge valve assembly 7 is as follows:
when the engine body is in a steady state working condition or an acceleration working condition, the upper side of a membrane of the anti-surge valve assembly 7 is the pressure (MAP) of an engine intake manifold 11, the lower side is the pressure (TIP) of a supercharging rear throttle body assembly 12, the pressure difference between the two sides is very small, and the valve is in a closed state under the action of the elastic force of a spring; when the engine is suddenly decelerated, the throttle body assembly 12 is suddenly closed, the flow of gas flowing through the throttle is suddenly reduced, the supercharger 2 is still at a higher rotating speed due to the inertia effect, and the pressure is suddenly increased after the supercharging, so that the pressure ratio of the supercharger 2 exceeds the surging boundary, and surging occurs. After the anti-surge valve assembly 7 is installed, when the throttle valve is suddenly closed, MAP drops rapidly, so that the pressure above the diaphragm drops rapidly, the pressure difference between two sides overcomes the spring force to open the valve, the pressure in front of the throttle valve is released to the pressure before the pressure is boosted, the TIP drops rapidly, the pressure ratio of the supercharger is below the surge limit, the supercharger is prevented from surging, and the reliability of the supercharger is improved.
As shown in FIG. 4, the invention adopts a Venturi tube 9 (Venturi tube-PFM) structure of an integrated air flow meter between a throttle body assembly 12 and an engine air inlet connecting tube 8, the pipeline is basically composed of a throat section, a straight tube section, a flared section and an air flow sensor mounting flange, the Venturi air flow meter is a differential pressure type flow meter, the differential pressure can be fed back to an EECU in real time through the integrated air flow sensor based on a flow measurement method of Bernoulli equation and a flow continuity equation, and the air inlet quantity of the engine can be intelligently and accurately controlled through the EECU, so that the combustion efficiency of the engine is effectively improved. The Venturi tube 9 needs to be arranged at the downstream of the anti-surge valve assembly 7 and at the upstream of the throttle body assembly, so that the phenomenon that the air inflow measured by the air flow sensor assembly 18 is inconsistent with the air inflow actually entering the engine air inlet manifold 11 after the anti-surge valve assembly 7 discharges the pressurized gas is avoided, the accuracy of the air inflow data received by the EECU can be effectively avoided, and the problem of air inlet pipeline shaking caused by pressure fluctuation is avoided. The third air inlet connecting pipe 16 comprises a hose section connected with the air outlet of the venturi tube 9 and a steel pipe section connected with the throttle body assembly 12, and the hose section is connected with the throttle body assembly 12 through a flange.
In addition, the EGR valve assembly adopts electric control to accurately control the size of the recirculation quantity, so that the exhaust emission is reduced; the mixer assembly inlet is matched and arranged according to the size of the EGR valve assembly flange outlet, and the EGR valve assembly can be directly assembled on the mixer flange. The EGR air inlet pipe 6 behind the cooler bypasses the front end of the engine from the EGR cooler assembly, and the pipeline structure adopts a form of middle-section short ripples.
The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are included in the scope of the claims of the present invention which are filed as the application.
Claims (10)
1. The utility model provides an anti-surge's gas engine turbocharging system, including first air inlet connecting pipe (1), booster (2), engine exhaust manifold (3), EGR intake pipe (17) before the cooler, engine EGR cooler assembly (4), EGR intake pipe (6) behind the cooler, engine EGR valve assembly (14), mixer assembly (13), engine air inlet manifold (11), engine air inlet takes over (8), third air inlet connecting pipe (16), throttle body assembly (12) and second air inlet connecting pipe (15), its characterized in that: still include anti-surge valve assembly (7), anti-surge valve gas outlet connecting pipe assembly (5) and anti-surge valve vacuum port connecting pipe assembly (10), integrated the installing on engine intake pipe (8) of anti-surge valve assembly (7) air inlet, anti-surge valve assembly (7) gas outlet is connected with first intake connecting pipe (1) through anti-surge valve gas outlet connecting pipe assembly (5), the vacuum port of anti-surge valve assembly (7) is connected through the return bend of admitting air behind anti-surge valve vacuum port connecting pipe assembly (10) and throttle body assembly (12).
2. The anti-surge gas engine pressurization system according to claim 1, characterized in that: the air inlet of the Venturi tube (9) is connected with an air inlet connecting tube (8) of the engine, the air outlet of the Venturi tube (9) is connected with a throttle body assembly (12) through a third air inlet connecting tube (16), the air flow sensor assembly (18) is arranged on the Venturi tube (9), and the data output end of the air flow sensor assembly (18) is electrically connected with the data input end of the EECU.
3. The anti-surge gas engine pressurization system according to claim 1, characterized in that: the anti-surge valve assembly (7) is arranged on the inner side of an air inlet connecting pipe (8) of the engine.
4. The anti-surge gas engine pressurization system according to claim 1, characterized in that: the air inlet of the anti-surge valve assembly (7) is connected with the air inlet connecting pipe (8) of the engine through a flange.
5. The anti-surge gas engine pressurization system according to claim 1, characterized in that: the gas outlet of the anti-surge valve assembly (7) is connected with a bent connector through a flange, the end part of the bent connector is provided with a bulge structure, and the bulge structure is connected with the gas outlet connecting pipe assembly (5) of the anti-surge valve.
6. The anti-surge gas engine pressurization system according to claim 1, characterized in that: and the anti-surge valve gas outlet connecting pipe assembly (5) comprises silica gel pipe sections positioned at two ends and steel pipe sections used for connecting the silica gel pipe sections at the two ends.
7. The anti-surge gas engine pressurization system according to claim 6, characterized in that: and the steel pipe section is provided with two movable pipe clamps in a sliding manner.
8. The anti-surge gas engine pressurization system according to claim 1, characterized in that: the third air inlet connecting pipe (16) comprises a hose section connected with the air outlet of the Venturi tube (9) and a steel pipe section connected with the throttle body assembly (12), and the hose section is connected with the throttle body assembly (12) through a flange.
9. The anti-surge gas engine pressurization system according to claim 1, characterized in that: and the EGR air inlet pipe (6) behind the cooler is a corrugated pipe.
10. The anti-surge gas engine pressurization system according to claim 1, characterized in that: the engine EGR valve assembly (14) is fixed on the mixer assembly (13) through a flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110047010.0A CN112761775B (en) | 2021-01-14 | 2021-01-14 | Anti-surge gas engine pressurization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110047010.0A CN112761775B (en) | 2021-01-14 | 2021-01-14 | Anti-surge gas engine pressurization system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112761775A true CN112761775A (en) | 2021-05-07 |
| CN112761775B CN112761775B (en) | 2022-04-29 |
Family
ID=75701698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110047010.0A Active CN112761775B (en) | 2021-01-14 | 2021-01-14 | Anti-surge gas engine pressurization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112761775B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5133646A (en) * | 1990-11-09 | 1992-07-28 | Sundstrand Corporation | Antisurge apparatus for eliminating surges in compressed air output by a compressor |
| US6722128B1 (en) * | 2002-09-30 | 2004-04-20 | John Adrian | Blow-off valve |
| CN103527310A (en) * | 2013-09-17 | 2014-01-22 | 东风南充汽车有限公司 | Automobile supercharger integrated anti-surge valve |
| KR101543158B1 (en) * | 2014-04-28 | 2015-08-07 | 현대자동차주식회사 | Expanded Chamber type Anti Surge Valve and Vehicle Turbo Charger System thereby |
| CN206448870U (en) * | 2017-02-17 | 2017-08-29 | 广西玉柴机器股份有限公司 | A kind of ecp anti-surge installation |
| CN109826730A (en) * | 2019-03-25 | 2019-05-31 | 安徽华菱汽车有限公司 | A kind of automobile and its inlet duct |
| CN209228506U (en) * | 2019-01-03 | 2019-08-09 | 广西玉柴机器股份有限公司 | A kind of gas engine inlet pipe connection |
-
2021
- 2021-01-14 CN CN202110047010.0A patent/CN112761775B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5133646A (en) * | 1990-11-09 | 1992-07-28 | Sundstrand Corporation | Antisurge apparatus for eliminating surges in compressed air output by a compressor |
| US6722128B1 (en) * | 2002-09-30 | 2004-04-20 | John Adrian | Blow-off valve |
| CN103527310A (en) * | 2013-09-17 | 2014-01-22 | 东风南充汽车有限公司 | Automobile supercharger integrated anti-surge valve |
| KR101543158B1 (en) * | 2014-04-28 | 2015-08-07 | 현대자동차주식회사 | Expanded Chamber type Anti Surge Valve and Vehicle Turbo Charger System thereby |
| CN206448870U (en) * | 2017-02-17 | 2017-08-29 | 广西玉柴机器股份有限公司 | A kind of ecp anti-surge installation |
| CN209228506U (en) * | 2019-01-03 | 2019-08-09 | 广西玉柴机器股份有限公司 | A kind of gas engine inlet pipe connection |
| CN109826730A (en) * | 2019-03-25 | 2019-05-31 | 安徽华菱汽车有限公司 | A kind of automobile and its inlet duct |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112761775B (en) | 2022-04-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS60259722A (en) | Multi-cylinder internal combustion engine equipped with two exhaust turbo overchargers | |
| WO2018149162A1 (en) | Electrically controlled pneumatic surge protection device and control method | |
| CN101749093B (en) | Exhaust system of an internal combustion engine | |
| CN112761775B (en) | Anti-surge gas engine pressurization system | |
| CN112524080A (en) | Adjustable two-stage turbocharging system test platform | |
| CN201092891Y (en) | Assembly throttle valve of motorcycle | |
| CN102061981A (en) | Turbocharger and anti-surge device thereof | |
| CN201908717U (en) | Turbocharger with electronic control mechanical valve | |
| CN202832776U (en) | Gasoline engine air inlet bypass valve | |
| CN103670837B (en) | A kind of twin turbocharged engine air inlet pipeline | |
| CN214007314U (en) | Engine | |
| CN115045780A (en) | Arrangement structure for increasing low-pressure EGR (exhaust gas recirculation) coverage working condition | |
| CN207598376U (en) | A kind of diesel engine exhaust heat management system | |
| CN210948939U (en) | Venturi tube integrated with EGR valve seat | |
| CN203081571U (en) | Turbocharger vent valve control device | |
| CN115292934B (en) | Design method for eccentric intersecting of bypass branch and main pipe of two-stage turbocharging system | |
| CN111946444A (en) | Three-stage variable-section turbine two-stage sequential supercharging system and control method | |
| CN215409358U (en) | Adjustable two-stage turbocharging system test platform | |
| CN209990547U (en) | Engine turbocharger waste gas bypass valve working condition detection device | |
| CN219654961U (en) | Inlet backflow structure of turbocharger | |
| CN217999748U (en) | Turbocharged air inlet unit, engine, hybrid assembly and vehicle | |
| CN205064144U (en) | Engine air intake manifold of integrated intercooler | |
| CN217538881U (en) | Integrated supercharger air inlet connecting pipe structure | |
| CN216518267U (en) | Turbocharger waste gas bypass valve control mechanism and turbocharger | |
| CN211397738U (en) | Carbon tank desorption system and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |