CN114909211A - Efficient supercharged direct injection engine general arrangement - Google Patents

Efficient supercharged direct injection engine general arrangement Download PDF

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Publication number
CN114909211A
CN114909211A CN202210658373.2A CN202210658373A CN114909211A CN 114909211 A CN114909211 A CN 114909211A CN 202210658373 A CN202210658373 A CN 202210658373A CN 114909211 A CN114909211 A CN 114909211A
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China
Prior art keywords
assembly
air inlet
air
intercooler
pipe
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Granted
Application number
CN202210658373.2A
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Chinese (zh)
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CN114909211B (en
Inventor
王玉鹏
滕红
赵兴天
王德春
刘侠
庞玉超
杨守财
刘朋
高春梅
李磊
苗秀
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Harbin Dongan Auto Engine Co Ltd
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Harbin Dongan Auto Engine Co Ltd
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Priority to CN202210658373.2A priority Critical patent/CN114909211B/en
Publication of CN114909211A publication Critical patent/CN114909211A/en
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Publication of CN114909211B publication Critical patent/CN114909211B/en
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    • 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
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/0406—Layout of the intake air cooling or coolant circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/12—Arrangements for cooling other engine or machine parts
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • 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
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • 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
    • F02M26/28—Layout, e.g. schematics with liquid-cooled heat exchangers
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

The invention provides a general arrangement of a high-efficiency supercharged direct injection engine, and belongs to the technical field of engines. The engine is compact in overall arrangement structure, saves space and is wide in application range. The engine general layout comprises a whole main cooling system, a supercharger, a water-air intercooler and auxiliary cooling system, an EGR system and a turbocharging system, and specifically comprises components such as a turbocharger, a water-air intercooler, an air inlet mixing valve, an EGR cooler, an electronic main water pump, a high-pressure oil rail and the like. The engine is arranged at an inclination angle of 0-20 degrees, and the overall dimension of the engine is reduced by mutually integrating components such as a turbocharger, a water-air intercooler, an air inlet mixing valve, an EGR cooler, an electronic main water pump, a high-pressure oil rail, a three-way catalyst assembly and the like, so that the engine can be applied to more vehicle types with compact engine cabin space.

Description

Efficient supercharged direct injection engine general arrangement
Technical Field
The invention belongs to the technical field of engines, and particularly relates to a general arrangement of a high-efficiency supercharged direct injection engine.
Background
With the wider application of gasoline engines, the arrangement of the existing supercharged gasoline engines with the displacement of 1.5L-1.6L in the vertical engine room is more and more compact, and the number of supercharged engine parts is more, so that the gasoline engines are required to arrange peripheral parts more closely under the condition of meeting the arrangement requirements of various systems of the engines, and a certain gap is required to be kept between the gasoline engines and various parts of the engine room, so that the arrangement of the supercharged engines is difficult.
Disclosure of Invention
In order to solve the problems existing in the background technology, the invention provides a novel efficient supercharged direct injection engine general arrangement which is compact in structure, saves space and can be applied to various vehicle types with compact engine cabin space.
The technical scheme adopted for solving the technical problems is as follows: a high-efficiency supercharged direct injection engine assembly comprises a valve chamber housing, a supercharger air inlet pipe assembly, a synchronous chain housing assembly, a turbocharger, an electronic main water pump, a three-way catalyst assembly, a high-pressure oil pump, a high-pressure oil rail, a water-air intercooler, a gasoline engine body, an air inlet mixing valve, an EGR cooler and an EGR valve; the gasoline engine body is arranged at an angle, the valve chamber housing is fixedly connected with the upper part of the gasoline engine body through bolts, the supercharger air inlet pipe assembly is arranged on the valve chamber housing and is connected with an air inlet system of the whole gasoline engine body through an air inlet mixing valve, the exhaust side of the gasoline engine body is connected with a turbocharger, the rear end of the turbocharger is connected with a three-way catalyst assembly, the electronic main water pump is arranged below the turbocharger, the EGR cooler is connected with the three-way catalyst assembly through an EGR valve and takes air from the middle section of the three-way catalyst assembly, the upper half part of the air inlet side of the gasoline engine body is provided with an air inlet manifold assembly and a high-pressure oil pump, the high-pressure oil pump is connected with a high-pressure oil rail, the air inlet manifold assembly is wrapped outside the high-pressure oil rail, and the lower half part of the air inlet side of the gasoline engine body is provided with a water air cooling system, the water-air intercooler of the water-air intercooler system is connected with an air inlet manifold assembly through a throttle body, a supercharger air outlet pipe assembly and an auxiliary water tank cooling pipeline for cooling the water-air intercooler and a turbocharger are arranged at the front end of the gasoline engine body, the synchronous chain cover shell assembly is arranged at the front end of the gasoline engine body and integrates a synchronous chain cover shell and an engine front suspension, and therefore the overall axial length of the engine is reduced.
The efficient supercharged direct injection engine is suitable for arrangement at an angle of 0-20 degrees, and mainly comprises an intercooler system, a supercharging system and an EGR system, wherein an intercooler cooling pipeline of the intercooler cooling system and a supercharger cooling pipeline of the supercharging system form an auxiliary cooling system together, and the auxiliary cooling system is directly connected to an auxiliary water tank of the whole vehicle.
The invention has the beneficial effects that:
1. the invention relates to a novel efficient supercharged direct injection engine assembly of 1.451L-1.649L, aiming at a compact engine cabin, an air inlet manifold, an intercooler, a turbocharger, a three-way catalyst assembly and an oil pan are reasonably designed, so that the 1.451L-1.649L gasoline engine is integrally distributed at an inclination angle of 0-20 degrees, the problem that the gasoline engine cannot be distributed in the vertical engine cabin in the width and height directions is effectively solved, and the distribution suitability is improved.
2. The gasoline engine is reasonable in structure, the water air cooling system originally arranged on the whole vehicle is arranged in the engine general arrangement, and the water air cooling system and the cooling pipeline of the turbocharger jointly form a whole vehicle auxiliary cooling system, so that the cooling effect is effectively improved.
3. The EGR cooling system is reasonably arranged, so that the air utilization rate is improved, the pollution emission is reduced, the overall size of the engine is reduced, and the overall arrangement space is saved.
4. The air inlet mixing valve is arranged on a valve chamber cover shell at the rear end of the engine and is connected to an air inlet of the supercharger through a supercharger air inlet pipeline arranged above the valve chamber cover shell, so that the size of the air inlet mixing valve is large.
5. The front suspension of the gasoline engine adopts a scheme of integrating with a synchronous chain cover shell, so that the whole structure is compact and the installation is convenient.
Drawings
In the drawings:
FIG. 1 is a schematic rear end view of the present invention;
FIG. 2 is a schematic diagram of the front end structure of the present invention;
FIG. 3 is a schematic illustration of an EGR cooler configuration of the present invention;
FIG. 4 is a schematic view of a water-air intercooler of the present invention;
FIG. 5 is a schematic view of the supercharger intake duct configuration of the present invention;
FIG. 6 is a schematic view of the three-way catalyst assembly of the present invention;
in the figure:
1. a valve chamber housing; 2. a supercharger air inlet pipe assembly; 3. a synchronous chain cage assembly; 4. a turbocharger; 5. a supercharger heat shield assembly; 6. a supercharger water return pipe assembly; 7. a supercharger cooling oil pipe assembly; 8. a front lifting lug of the engine; 9. the water inlet of the supercharger is connected with a rubber pipe assembly; 10. a water return steel pipe assembly of the intercooler; 11. a supercharger air outlet rubber pipe assembly; 12. a supercharger air outlet pipe assembly; 13. an electronic main water pump; 14. a water inlet steel pipe of the supercharger; 15. a three-way catalyst assembly; 16. the water inlet of the supercharger is connected with a rubber pipe; 17. an intercooler water inlet steel pipe assembly; 18. an oil pan assembly; 19. a high-pressure oil pump; 20. an electromagnetic coil; 21. a rear lifting lug of the engine; 22. an intake manifold assembly; 23. a high pressure oil rail; 24. a water return rubber pipe assembly of the intercooler; 25. a throttle body; 26. a canister control valve; 27. a water air intercooler; 28. an electrically controlled nozzle valve; 29. an engine oil pressure sensor; 30. a gasoline engine body; 31. an intercooler water inlet rubber pipe; 32. a cylinder body; 33. an intake mixing valve; 34. a cylinder cover; 35. a supercharger air inlet pipe bracket; 36. a high pressure fuel pipe assembly; 37. an intake air temperature pressure sensor; 38. a coolant temperature sensor; 39. an intercooler bracket; 40. a water outlet steel pipe assembly; 41. an EGR return water rubber pipe; 42. an EGR cooler; 43. an EGR temperature sensor; 44. an EGR valve; 45. the EGR valve is connected with the hose assembly; 2-1, installing the air inlet pipe bracket; 2-2, connecting a mixing valve with a flange; 2-3, an EGR differential pressure sensor mounting seat; 2-4, fixing points; 2-5, connecting the EGR valve with a hose filler neck; 2-6, connecting a rubber pipe; 2-7, connecting the high-pressure oil-gas desorption pipeline with a first nozzle; 2-8, connecting a flange with an air inlet; 2-9, an air inlet pipe body; 15-1, a three-way catalyst heat shield; 15-2, an EGR system gas taking flange; 15-3, a heat exhaust sensor mounting table; 15-4, fixing a three-way catalytic converter bracket; 15-5, a rear flange of the three-way catalyst; 15-6, a GPF gas taking pipe mounting table; 15-7, an oxygen sensor mounting table; 15-8, GPF gas taking steel pipe; 15-9, GPF gas taking steel pipe support; 15-10 parts of GPF air outlet nozzle; 15-11, a three-way catalyst air inlet flange; 27-1, an air outlet flange; 27-2, an intercooler air chamber; 27-3, connecting a high-pressure oil-gas desorption pipeline with a second nozzle; 27-4, intercooler bracket fixing holes; 27-5, a cooling liquid water inlet pipe nozzle; 27-6, an intercooler body; 27-7 of an intercooler fixing support; 27-8 parts of an air inlet flange; 27-9, a cooling liquid outlet pipe nozzle; 42-1, a cooler fixing bracket; 42-2, a cooling liquid water taking pipe; 42-3, a gas taking corrugated pipe; 42-4, taking an air pipe by a differential pressure sensor; 42-5, an EGR valve connecting flange; 42-6, an EGR temperature sensor mounting seat; 42-7, a cooling liquid outlet pipe; 42-8, a cooler body; 42-9, a cooler gas taking flange; 42-10, a cooler air chamber.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
A high-efficiency supercharged direct injection engine assembly arrangement comprises a valve chamber housing 1, a supercharger air inlet pipe assembly 2, a synchronous chain housing assembly 3, a turbocharger 4, an electronic main water pump 13, a three-way catalyst assembly 15, a high-pressure oil pump 19, a high-pressure oil rail 23, a water air cooler 27, a gasoline engine body 30, an air inlet mixing valve 33, an EGR cooler 42 and an EGR valve 44; the gasoline engine body 30 is arranged at an angle of 0 degree, the valve chamber housing 1 is arranged above the gasoline engine body 30 through a bolt fixed connection, the supercharger air inlet pipe assembly 2 is arranged on the valve chamber housing 1, the supercharger air inlet pipe assembly 2 is connected with an air inlet system of the whole vehicle through an air inlet mixing valve, the exhaust side of the gasoline engine body 30 is connected with a turbocharger 4, the rear end of the turbocharger 4 is connected with a three-way catalyst assembly 15, the electronic main water pump 13 is arranged below the turbocharger 4, the EGR cooler 42 is connected with the three-way catalyst assembly 15 through an EGR valve 44 and takes air from the middle section of the three-way catalyst assembly 15, the upper half oil pump part of the air inlet side of the gasoline engine body 30 is provided with an air inlet manifold assembly 22 and a high pressure oil pump 19, the high pressure oil rail 23 is connected with the high pressure oil rail 23, and the air inlet manifold assembly 22 is wrapped outside the high pressure oil rail 23, the lower half of the air inlet side of the gasoline engine body 30 is provided with a water air cooling system, a water air cooler 27 of the water air cooling system is connected with an air inlet manifold assembly 22 through a throttle body 25, the front end of the gasoline engine body 30 is provided with a supercharger air outlet pipe assembly 12 and an auxiliary water tank cooling pipeline for cooling the water air cooler 27 and a turbocharger 4, the synchronous chain cover shell assembly 3 is installed at the front end of the gasoline engine body 30, and the synchronous chain cover shell assembly 3 integrates a synchronous chain cover shell and an engine front suspension, so that the overall axial length of the engine is reduced.
The efficient supercharged direct injection engine is suitable for arrangement at an angle of 0-20 degrees, and mainly comprises an intercooler system, a supercharging system and an EGR system, wherein an intercooler cooling pipeline of the intercooler cooling system and a supercharger cooling pipeline of the supercharging system form an auxiliary cooling system together, and the auxiliary cooling system is directly connected to an auxiliary water tank of the whole vehicle.
The supercharging system comprises a turbocharger 4, a supercharger cooling oil pipe assembly 7, a supercharger air inlet pipe assembly 2, a supercharger air outlet pipe assembly 12, a supercharger air inlet pipe support 35, an air inlet mixing valve 33 and a supercharger cooling pipeline; the air inlet mixing valve 33 is arranged on a supercharger air inlet pipe support 35 at the rear end of the gasoline engine body 30 and is fixedly connected with a supercharger air inlet pipe assembly 2 through bolts, the supercharger air inlet pipe support 35 is fixedly arranged on a cylinder cover 34 through bolts, the air inlet end of the turbocharger 4 is fixedly connected with the air outlet on the side surface of the cylinder cover 34, a gasket for increasing air tightness is arranged at the joint, the air outlet end of the turbocharger 4 is sequentially connected with a supercharger air outlet rubber pipe assembly 11 and a supercharger air outlet pipe assembly 12, the air outlet end of the supercharger air outlet pipe assembly 12 is connected with the air inlet end of the water air intercooler 27, the oil inlet end of the supercharger cooling oil pipe assembly 7 is fixedly connected to the oil way of the cylinder cover 34 through hollow bolts and takes oil from the oil way of the cylinder cover 34, a supercharger oil return pipe is communicated with the main oil way of the cylinder body 32 and returns oil to the main oil way, and the supercharging cooling pipeline and the intercooler cooling pipeline together form an auxiliary cooling system, and be connected to whole car expansion tank, the booster cooling pipeline includes that the booster is intake and is connected rubber tube 16, booster water inlet steel pipe 14, booster wet return assembly 6, the intercooler cooling pipeline sets up the nozzle on the road and links to each other with the booster one end of being intake and being connected rubber tube 16, the booster is intake and is connected the other end of rubber tube 16 and connect on the booster water inlet steel pipe 14 of fixed setting on the synchronous chain housing assembly 3, booster wet return assembly 6 is intake through the booster and is connected rubber tube 16 and booster water inlet steel pipe 14 and link to each other, booster wet return assembly 6 passes through booster return rubber tube and links to each other with intercooler return steel pipe assembly 10, the exhaust end of booster heat shield assembly 5 parcel turbo charger 4, the integrated booster gasket on the booster heat shield assembly 5 for increase the leakproofness between the gas vent with cylinder cap 34.
The water-air cooling system comprises a water-air intercooler 27, an intake air temperature and pressure sensor 37, an intercooler bracket 39 and an intercooler cooling pipeline; the intake temperature and pressure sensor 37 is arranged at the air outlet end of the water-air intercooler 27, the air outlet end of the water-air intercooler 27 is connected with one end of a throttle body 25, the other end of the throttle body 25 is communicated with an intake manifold assembly 22 of an engine, the gas pressurized by a pressurization system enters the water-air intercooler 27 for cooling, the cooled gas enters the intake manifold assembly 22 through the throttle body 25 after being detected by the intake temperature and pressure sensor 37, an intercooler bracket 39 is arranged below the water-air intercooler 27 in a supporting manner, the intercooler bracket 39 is fixedly arranged on a cylinder body 32, and an intercooler cooling pipeline comprises an intercooler water inlet steel pipe, an intercooler water inlet rubber pipe, an intercooler water inlet connecting pipe nozzle, an intercooler water return steel pipe, an intercooler water return rubber pipe and an intercooler water return connecting nozzle; the intercooler steel pipe of intaking is fixed to be set up on oil pan assembly 18, and the intercooler steel pipe of intaking is linked together through intercooler intake rubber tube and the intercooler intake filler neck on the intercooler 27 of water, provides the cooling guarantee of intaking for the intercooler 27 of water, the fixed suspension below that sets up in synchronous chain housing assembly 3 of intercooler return steel pipe, intercooler return steel pipe pass through intercooler return rubber tube and the intercooler return filler neck on the intercooler 27 of water and be linked together, provide the cooling return guarantee for the intercooler 27 of water.
The EGR system comprises an EGR return water rubber pipe 41, an EGR cooler 42, an EGR temperature sensor 43, an EGR valve 44 and an EGR valve connecting hose assembly 45; the inlet end of the EGR cooler 42 is arranged at the middle section of the three-way catalyst assembly 15 and takes gas from the middle section, the EGR temperature sensor 43 is arranged on the EGR cooler 42, the measuring end of the EGR temperature sensor 43 is inserted into the EGR cooler 42 for temperature measurement, the outlet end of the EGR cooler 42 is sequentially connected with an EGR valve 44 and an EGR valve connecting hose assembly 45, the EGR valve connecting hose assembly 45 is connected with the supercharger air inlet pipe assembly 2, the gas enters the EGR cooler 42 through the middle section of the three-way catalyst assembly 15 for cooling, and enters the supercharger air inlet pipe assembly 2 through the EGR valve 44 and the EGR valve connecting hose assembly 45 after the temperature detection is carried out by the EGR temperature sensor 43, thereby completing the gas cooling circulation, the inlet end of the EGR cooler 42 is connected with the four cylinders of the cylinder body of the gasoline engine body 30 and takes cooling liquid from the inlet end, after the gas cooling of the gasoline engine cooler 42 is completed, the coolant flows back into the cooling pipeline of the whole vehicle through an EGR return water rubber pipe 41, the EGR cooler 42 is fixed through three brackets, wherein two brackets are fixed on the cylinder cover 34, and one bracket is fixed at the rear flange of the cylinder body 32.
The front end of the synchronous chain housing assembly 3 is provided with an engine front lifting lug 8 for lifting the whole engine, one side of an engine front suspension of the synchronous chain housing assembly 3 is fixed between two electromagnetic coils 20 through a bolt, and the other end of the engine front suspension of the synchronous chain housing assembly 3 is fixed on the whole vehicle suspension through a bolt.
The high-pressure oil pump 19 is obliquely arranged at the top end of the cylinder cover 34 towards the air inlet side of the gasoline engine body 30 and located between three cylinders and four cylinders, and the high-pressure oil pump 19 and the valve chamber cover 1 are sealed through rubber strips.
The electronic main water pump 13 is an attached electronic water pump and is arranged below the turbocharger 4, the electronic main water pump 13 is supported and installed on the gasoline engine body 30 through a water pump adapter, the water inlet end of the electronic main water pump 13 is arranged at one cylinder position of the exhaust side of the gasoline engine body 30, the water outlet adapter connected with the whole vehicle cooling system is arranged below the air inlet manifold assembly 22 of the air inlet side of the gasoline engine body 30 and is located at the three cylinders of the gasoline engine body 30, and the water outlet adapter is used for installing a whole machine water outlet steel pipe.
The supercharger intake pipe assembly 2 includes: the device comprises an air inlet pipe support mounting point 2-1, a mixing valve connecting flange 2-2, an EGR differential pressure sensor mounting seat 2-3, a fixed point 2-4, an EGR valve connecting hose connecting pipe nozzle 2-5, a connecting rubber pipe 2-6, a high-pressure oil-gas desorption pipeline connecting pipe nozzle I2-7, an air inlet connecting flange 2-8 and an air inlet pipe body 2-9; the supercharger air inlet pipe assembly 2 is attached to a gasoline engine body 30 and is arranged in a bent shape, a head section, an air inlet pipe body 2-9, a connecting rubber pipe 2-6 and a tail section are sequentially arranged along the air flow direction, a mixing valve connecting flange 2-2 is arranged at an air inlet of the head section and is used for being communicated with an air inlet mixing valve 33, an air outlet of the head section is fixedly connected with an air inlet of the air inlet pipe body 2-9, an air outlet end of the air inlet pipe body 2-9 is communicated with an air inlet of the tail section through the connecting rubber pipe 2-6, an air inlet connecting flange 2-8 is arranged at an air outlet of the tail section so as to be connected with a turbocharger 4, the head section, the air inlet pipe body 2-9 and the tail section are all of hard structures, and after the connection through the flexible connecting rubber pipe 2-6, the supercharger air inlet pipe assembly 2 can be better attached to the outside the gasoline engine body 30, an air inlet pipe support mounting point 2-1 is arranged on the outer side surface of the head section, a fixed point 2-4 for mounting and fixing is arranged on each of the air inlet pipe body 2-9 and the tail section, the air inlet pipe support mounting point 2-1 and the fixed point 2-4 are matched in a coordinated mode so that the supercharger air inlet pipe assembly 2 can be mounted on the gasoline engine body 30, an EGR valve connecting hose connecting pipe nozzle 2-5 is arranged on each of the air inlet pipe body 2-9 in an inclined protruding mode so as to be connected with an EGR system, an EGR differential pressure sensor mounting seat 2-3 is arranged on the outer side of the head section in a protruding mode towards the direction of the EGR valve connecting hose connecting pipe nozzle 2-5 so as to be mounted on an EGR differential pressure sensor, the EGR differential pressure sensor is mounted on the supercharger air inlet pipe assembly 2, air is respectively taken from the front end and the rear end of the EGR valve 44 through two rubber pipes, and pressure difference measurement is completed, the outer side of the tail section is provided with a high-pressure oil-gas desorption pipeline connecting pipe nozzle I2-7 for connecting with a high-pressure oil-gas desorption pipeline,
the water-air intercooler 27 comprises an air outlet flange 27-1, an intercooler air chamber 27-2, a high-pressure oil-gas desorption pipeline connecting nozzle II 27-3, an intercooler bracket fixing hole 27-4, a cooling liquid water inlet nozzle 27-5, an intercooler body 27-6, an intercooler fixing bracket 27-7, an air inlet flange 27-8 and a cooling liquid water outlet nozzle 27-9; the intercooler body 27-6 is of a cuboid structure, an air inlet side and an air outlet side of the intercooler body 27-6 are respectively and fixedly provided with an intercooler air chamber 27-2, an air inlet flange 27-8 is arranged at the air inlet end of the intercooler air chamber 27-2 at the air inlet side, an air outlet end is connected with the intercooler body 27-6, two intercooler fixing supports 27-7 are distributed at the outer side of the intercooler air chamber 27-2 at the air inlet side up and down, a cooling liquid water inlet pipe nozzle 27-5 and a cooling liquid water outlet pipe nozzle 27-9 are respectively arranged on two opposite end faces of the intercooler body 27-6, the air inlet end of the intercooler air chamber 27-2 at the air outlet side of the intercooler body 27-6 is connected with the intercooler body 27-6, and an air outlet flange 27-1 is arranged at the air outlet end, a high-pressure oil-gas desorption pipeline connecting pipe nozzle II 27-3 is arranged on the intercooler air chamber 27-2 at the air outlet side and used for being connected with a high-pressure oil-gas desorption pipeline, an intercooler bracket fixing hole 27-4 is further arranged on the intercooler air chamber 27-2 at the air outlet side, and the intercooler bracket fixing hole 27-4 and the two intercooler fixing brackets 27-7 cooperate to install and fix the whole water air cooler 27.
The EGR cooler 42 includes: the device comprises a cooler fixing support 42-1, a cooling liquid water taking pipe 42-2, a gas taking corrugated pipe 42-3, a differential pressure sensor gas taking pipe 42-4, an EGR valve connecting flange 42-5, an EGR temperature sensor mounting seat 42-6, a cooling liquid water outlet pipe 42-7, a cooler body 42-8, a cooler gas taking flange 42-9 and a cooler gas chamber 42-10; the cooler body 42-8 is set to be a cuboid structure, the air inlet side and the air outlet side of the cooler body 42-8 are respectively provided with a cooler air chamber 42-10, the air inlet end of the cooler air chamber 42-10 positioned at the air inlet side of the cooler body 42-8 is connected with a cooler air inlet flange 42-9 through the air inlet corrugated pipe 42-3, the air outlet end is fixedly connected with the air inlet end of the cooler body 42-8, the air inlet end of the cooler air chamber 42-10 positioned at the air outlet side of the cooler body 42-8 is fixedly connected with the cooler body 42-8, the air outlet end is provided with an EGR valve connecting flange 42-5 so as to be connected with an EGR valve 44, the cooler air chamber 42-10 at the front side of the EGR valve connecting flange 42-5 is provided with an EGR temperature sensor mounting seat 42-6 and a differential pressure sensor air inlet pipe 42-4 in a matching manner, so that the EGR temperature sensor 43 can be mounted and the differential pressure sensor can perform detection, the two opposite side surfaces of the cooler body 42-8 are respectively provided with a coolant water intake pipe 42-2 and a coolant water outlet pipe 42-7, the coolant water intake pipe 42-2 and the coolant water outlet pipe 42-7 are distributed diagonally to achieve a cooling effect, and one side surface of the EGR cooler 42 is provided with a plurality of cooler fixing brackets 42-1 so as to mount and fix the EGR cooler 42.
The three-way catalyst assembly 15 comprises a three-way catalyst heat shield 15-1, an EGR system gas taking flange 15-2, a heat exhaust sensor mounting table 15-3, a three-way catalyst fixing support 15-4, a three-way catalyst rear flange 15-5, a GPF gas taking pipe mounting table 15-6, an oxygen sensor mounting table 15-7, a GPF gas taking steel pipe 15-8, a GPF gas taking steel pipe support 15-9, a GPF gas outlet nozzle 15-10 and a three-way catalyst gas inlet flange 15-11; the main body part of the three-way catalyst assembly 15 is of a cylindrical structure, one end of the three-way catalyst assembly 15 is provided with a three-way catalyst heat-insulating cover 15-1, an air inlet outlet of the three-way catalyst heat-insulating cover 15-1 is provided with a three-way catalyst air inlet flange 15-11, an oxygen sensor mounting table 15-7 is arranged on the three-way catalyst heat-insulating cover 15-1 and used for mounting an oxygen sensor, the other end of the main body of the three-way catalyst assembly 15 is provided with a three-way catalyst rear flange 15-5 so as to be connected with an exhaust system of a whole vehicle and discharge waste gas, an EGR system air intake flange 15-2 is arranged on the outer circumferential surface of the main body of the three-way catalyst assembly 15, the EGR system air intake flange 15-2 is connected with an air intake corrugated pipe 42-3 to form a gas flow passage, a heat discharge sensor mounting table 15-3 is arranged beside the EGR system air intake flange 15-2, two GPF gas taking steel pipes 15-8 are mounted on the outer side of the main body of the three-way catalyst assembly 15, one ends of the two GPF gas taking steel pipes 15-8 are mounted on the main body of the three-way catalyst assembly 15 through two GPF gas taking pipe mounting platforms 15-6 respectively, and are fixed on the outer surface of the main body of the three-way catalyst assembly 15 through GPF gas taking steel pipe supports 15-9, one GPF gas outlet nozzle 15-10 is mounted at the other end of each GPF gas taking steel pipe 15-8 respectively, and a plurality of three-way catalyst fixing supports 15-4 are arranged on the outer side of the main body of the three-way catalyst assembly 15 so that the three-way catalyst assembly 15 is integrally fixed on the gasoline engine body 30.
The working principle is as follows:
gasoline enters from the high-pressure oil pump 19, is pressurized and then sequentially passes through the high-pressure fuel pipe assembly 36 and the high-pressure oil rail 23 and then enters an engine cylinder for combustion.
Cooling water of the main cooling system enters the gasoline engine body 30 from the electronic main water pump 13, and water flows flow into the water outlet steel pipe assembly 40 through the water outlet adapter after cooling the gasoline engine body 30 and the cylinder cover 34 respectively and then enter the whole vehicle cooling system.
Cooling water of the auxiliary cooling system is divided into two paths from a intercooler water inlet steel pipe assembly 17, wherein one path enters a supercharger water inlet connecting rubber pipe 16, passes through a supercharger water inlet steel pipe 14, a supercharger water inlet connecting rubber pipe assembly 9, a supercharger water return pipe assembly 6, cools a turbocharger 4, passes through a cooled supercharger water return rubber pipe assembly and returns to an intercooler water return steel pipe assembly 10; the other path enters an intercooler water inlet rubber tube 31, the cooling water enters an air cooler 27, returns to an intercooler water return steel tube assembly 10 through an intercooler water return rubber tube assembly 24, and is collected in two paths to enter a whole vehicle cooling system.
Fresh air enters from the air inlet mixing valve 33, enters the turbocharger 4 through the supercharger air inlet pipe assembly 2 after being pressurized, enters the gasoline engine body 30 through the supercharger air outlet rubber pipe assembly 11, the supercharger air outlet pipe assembly 12, the water air cooler 27, the throttle body 25 and the air inlet manifold assembly 22, and after combustion, exhaust gas enters the three-way catalyst assembly 15 through the turbocharger 4 and then is divided into two paths, wherein one path of exhaust gas is discharged, the other path of exhaust gas enters the EGR cooler 42 at the middle section of the three-way catalyst assembly 15, and returns to the supercharger air inlet pipe assembly 2 through the EGR valve 44 and the EGR valve connecting hose assembly 45 to enter circulation again.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (12)

1. An efficient supercharged direct injection engine assembly arrangement, characterized by: the system comprises a valve chamber housing (1), a supercharger air inlet pipe assembly (2), a synchronous chain housing assembly (3), a turbocharger (4), an electronic main water pump (13), a three-way catalyst assembly (15), a high-pressure oil pump (19), a high-pressure oil rail (23), a water air cooler (27), a gasoline engine body (30), an air inlet mixing valve (33), an EGR cooler (42) and an EGR valve (44); the gasoline engine body (30) is arranged at an angle of 0 degree, the valve chamber housing (1) is arranged above the gasoline engine body (30) through bolt fixed connection, the supercharger air inlet pipe assembly (2) is arranged on the valve chamber housing (1), the supercharger air inlet pipe assembly (2) is connected with an air inlet system of the whole vehicle through an air inlet mixing valve, the exhaust side of the gasoline engine body (30) is connected with a turbocharger (4), the rear end of the turbocharger (4) is connected with a three-way catalyst assembly (15), the electronic main water pump (13) is arranged below the turbocharger (4), the EGR cooler (42) is connected with the three-way catalyst assembly (15) through an EGR valve (44) and takes gas from the middle section of the three-way catalyst assembly (15), the upper half part of the air inlet side of the gasoline engine body (30) is provided with an air inlet manifold assembly (22) and a high-pressure oil pump (19), connect on high-pressure oil pump (19) to be equipped with high-pressure oil rail (23), intake manifold assembly (22) cladding is outside high-pressure oil rail (23), the lower half of the side of admitting air of gasoline engine body (30) is provided with the water air cooling system, the water air cooler (27) of water air cooling system link to each other with intake manifold assembly (22) through throttle body (25), the front end of gasoline engine body (30) is provided with booster outlet duct assembly (12), and provides refrigerated expansion tank cooling circuit for water air cooler (27) and turbo charger (4), synchronous chain cover shell assembly (3) installation sets up the front end at gasoline engine body (30), and synchronous chain cover shell assembly (3) have integrateed and have been suspended before synchronous chain cover shell and the engine, and then have reduced the holistic axial length of engine.
2. A highly efficient supercharged direct-injection engine assembly arrangement as claimed in claim 1, characterized in that: the efficient supercharged direct injection engine is suitable for arrangement at an angle of 0-20 degrees, and mainly comprises an intercooler system, a supercharging system and an EGR system, wherein an intercooler cooling pipeline of the intercooler cooling system and a supercharger cooling pipeline of the supercharging system form an auxiliary cooling system together, and the auxiliary cooling system is directly connected to an auxiliary water tank of the whole vehicle.
3. A highly efficient supercharged direct-injection engine assembly arrangement as claimed in claim 2, characterized in that: the supercharging system comprises a turbocharger (4), a supercharger cooling oil pipe assembly (7), a supercharger air inlet pipe assembly (2), a supercharger air outlet pipe assembly (12), a supercharger air inlet pipe support (35), an air inlet mixing valve (33) and a supercharger cooling pipeline; the air inlet mixing valve (33) is arranged on a supercharger air inlet pipe support (35) at the rear end of the gasoline engine body (30) and fixedly connected with a supercharger air inlet pipe assembly (2) through bolts, the supercharger air inlet pipe support (35) is fixedly arranged on a cylinder cover (34) through bolts, the air inlet end of the turbocharger (4) is fixedly connected with the air outlet at the side surface of the cylinder cover (34), a gasket for increasing air tightness is arranged at the joint, the air outlet end of the turbocharger (4) is sequentially connected with a supercharger air outlet rubber pipe assembly (11) and a supercharger air outlet pipe assembly (12), the air outlet end of the supercharger air outlet pipe assembly (12) is connected with the air inlet end of the water air cooler (27), the oil inlet end of the supercharger cooling oil pipe assembly (7) is fixedly connected to the oil way of the cylinder cover (34) through hollow bolts and takes oil from the oil way of the cylinder cover (34), the main oil circuit intercommunication and the oil return of booster oil return pipe and cylinder body (32) give the main oil circuit, vice cooling system is together constituteed with intercooler cooling line to the pressure boost cooling line, and connect to whole car auxiliary water tank, the booster cooling line includes booster connection rubber tube (16) of intaking, booster intake steel pipe (14), booster wet return assembly (6), set up the nozzle on the intercooler cooling line and link to each other with the booster one end of intaking connection rubber tube (16), the other end of booster intake connection rubber tube (16) is connected on fixed booster intake steel pipe (14) that sets up on synchronous chain housing assembly (3), booster wet return assembly (6) are intake through the booster and are connected rubber tube (16) and are linked to each other with booster intake steel pipe (14), booster wet return assembly (6) are continuous with intercooler steel pipe assembly (10) through booster return rubber tube, the exhaust end of the turbocharger (4) is wrapped by the supercharger heat-insulating cover assembly (5), and a supercharger gasket is integrated on the supercharger heat-insulating cover assembly (5) and used for increasing the sealing performance between the supercharger heat-insulating cover assembly and the exhaust port of the cylinder cover (34).
4. A highly efficient supercharged direct-injection engine assembly arrangement as claimed in claim 3, characterized in that: the water-air cooling system comprises a water-air intercooler (27), an intake temperature and pressure sensor (37), an intercooler bracket (39) and an intercooler cooling pipeline; the inlet air temperature and pressure sensor (37) is arranged at the outlet end of the water air cooler (27), the air outlet end of the water air cooler (27) is connected with one end of a throttle body (25), the other end of the throttle body (25) is communicated with an air inlet manifold assembly (22) of the engine, the gas pressurized by the pressurization system enters the water air intercooler (27) for cooling, after the cooled gas is detected by the air inlet temperature and pressure sensor (37), enters an intake manifold assembly (22) through a throttle body (25), an intercooler bracket (39) is supported and arranged below the water air intercooler (27), the intercooler bracket (39) is fixedly arranged on the cylinder body (32), and the intercooler cooling pipeline comprises an intercooler water inlet steel pipe, an intercooler water inlet rubber pipe, an intercooler water inlet connecting pipe nozzle, an intercooler water return steel pipe, an intercooler water return rubber pipe and an intercooler water return connecting pipe nozzle; the intercooler is intake the steel pipe and is fixed to be set up on oil pan assembly (18), and the intercooler is intake the steel pipe and is intake the filler neck through the intercooler on intercooler is intake rubber tube and water air cooler (27) and be linked together, provides the cooling guarantee of intaking for water air cooler (27), intercooler return water steel pipe is fixed to be set up in the suspension below of synchronous chain cover shell assembly (3), and intercooler return water steel pipe is linked together through intercooler return water rubber tube and the intercooler return water filler neck on water air cooler (27), provides the cooling return water guarantee for water air cooler (27).
5. A highly efficient supercharged direct-injection engine assembly arrangement as claimed in claim 2, characterized in that: the EGR system comprises an EGR return water rubber pipe (41), an EGR cooler (42), an EGR temperature sensor (43), an EGR valve (44) and an EGR valve connecting hose assembly (45); the air inlet end of the EGR cooler (42) is connected with the middle section of the three-way catalyst assembly (15) and used for taking air from the middle section, the EGR temperature sensor (43) is arranged on the EGR cooler (42), the measuring end of the EGR temperature sensor (43) is inserted into the EGR cooler (42) for measuring the temperature, the air outlet end of the EGR cooler (42) is sequentially connected with an EGR valve (44) and an EGR valve connecting hose assembly (45), the EGR valve connecting hose assembly (45) is connected with the supercharger air inlet pipe assembly (2), air enters the EGR cooler (42) through the middle section of the three-way catalyst assembly (15) for cooling, is subjected to temperature detection through the EGR temperature sensor (43) and then enters the supercharger air inlet pipe assembly (2) through the EGR valve (44) and the EGR valve connecting hose assembly (45) in sequence, so that the air cooling circulation is completed, and the air inlet end of the EGR cooler (42) is connected with four cylinders of the gasoline engine body (30) and used for taking air from the middle section The cooling liquid, EGR cooler (42) accomplish gas cooling back, and the coolant liquid flows back into whole car cooling line through EGR return water rubber tube (41), EGR cooler (42) are fixed through three support, and wherein two supports are fixed on cylinder cap (34), and a support is fixed in flange department behind cylinder body (32).
6. A highly efficient supercharged direct-injection engine assembly arrangement as claimed in claim 1, characterized in that: the front end of the synchronous chain housing assembly (3) is provided with an engine front lifting lug (8) for lifting the whole engine, one side of an engine front suspension of the synchronous chain housing assembly (3) is fixed between two electromagnetic coils (20) through a bolt, and the other end of the engine front suspension of the synchronous chain housing assembly is fixed on the whole vehicle suspension through a bolt.
7. The highly efficient supercharged direct injection engine assembly arrangement of claim 1, further characterized in that: the high-pressure oil pump (19) is obliquely arranged at the top end of the cylinder cover (34) and located between the three cylinders and the four cylinders towards the air inlet side of the gasoline engine body (30), and the high-pressure oil pump (19) and the valve chamber housing (1) are sealed through rubber strips.
8. A highly efficient supercharged direct-injection engine assembly arrangement as claimed in claim 1, characterized in that: the electronic main water pump (13) is arranged below the turbocharger (4) by an attaching electronic water pump, the electronic main water pump (13) is supported by a water pump adapter and is installed on the gasoline engine body (30), the water inlet end of the electronic main water pump (13) is arranged at one cylinder position of the exhaust side of the gasoline engine body (30), the water outlet adapter connected with the whole vehicle cooling system is arranged below an air inlet manifold assembly (22) of the air inlet side of the gasoline engine body (30) and is located at the three cylinders of the gasoline engine body (30), and the water outlet adapter is used for installing a whole machine water outlet steel pipe.
9. A highly efficient supercharged direct-injection engine assembly arrangement as claimed in claim 3, characterized in that: the supercharger intake pipe assembly (2) comprises: the device comprises an air inlet pipe support mounting point (2-1), a mixing valve connecting flange (2-2), an EGR differential pressure sensor mounting seat (2-3), a fixed point (2-4), an EGR valve connecting hose connecting pipe nozzle (2-5), a connecting rubber pipe (2-6), a high-pressure oil-gas desorption pipeline connecting pipe nozzle I (2-7), an air inlet connecting flange (2-8) and an air inlet pipe body (2-9); the supercharger air inlet pipe assembly (2) is attached to a gasoline engine body (30), the shape of the supercharger air inlet pipe assembly is set to be bent, a head section, an air inlet pipe body (2-9), a connecting rubber pipe (2-6) and a tail section are sequentially arranged along the air flowing direction, a mixing valve connecting flange (2-2) is arranged at an air inlet of the head section and is used for being communicated with an air inlet mixing valve (33), an air outlet of the head section is fixedly connected with an air inlet of the air inlet pipe body (2-9), an air outlet of the air inlet pipe body (2-9) is communicated with an air inlet of the tail section through the connecting rubber pipe (2-6), an air inlet connecting flange (2-8) is arranged at an air outlet of the tail section so as to be connected with a turbocharger (4), the head section, the air inlet pipe body (2-9) and the tail section are of hard structures and are connected through a flexible connecting rubber pipe (2-6), the supercharger air inlet pipe assembly (2) can be better attached to the outside of a gasoline engine body (30), an air inlet pipe support mounting point (2-1) is arranged on the outer side surface of the head section, a fixed point (2-4) for mounting and fixing is respectively arranged on the air inlet pipe body (2-9) and the tail section, the air inlet pipe support mounting point (2-1) is matched with the fixed point (2-4) in a coordinated mode so that the supercharger air inlet pipe assembly (2) can be mounted on the gasoline engine body (30), an EGR valve connecting hose connecting pipe nozzle (2-5) is obliquely and convexly arranged on the air inlet pipe body (2-9) so as to be connected with an EGR system, an EGR differential pressure sensor mounting seat (2-3) is convexly arranged on the outer side of the head section towards the direction of the EGR valve connecting hose connecting pipe nozzle (2-5) so as to facilitate the installation of an EGR differential pressure sensor, and a high-pressure oil-gas desorption pipeline connecting pipe nozzle I (2-7) is arranged on the outer side of the tail section in a protruding mode and is used for being connected with a high-pressure oil-gas desorption pipeline.
10. A highly efficient supercharged direct-injection engine assembly arrangement as claimed in claim 4, characterized in that: the water-air intercooler (27) comprises an air outlet flange (27-1), an intercooler air chamber (27-2), a second high-pressure oil-gas desorption pipeline connecting nozzle (27-3), an intercooler bracket fixing hole (27-4), a cooling liquid water inlet pipe nozzle (27-5), an intercooler body (27-6), an intercooler fixing bracket (27-7), an air inlet flange (27-8) and a cooling liquid water outlet pipe nozzle (27-9); the intercooler body (27-6) is of a cuboid structure, an air inlet side and an air outlet side of the intercooler body (27-6) are respectively and fixedly provided with an intercooler air chamber (27-2), an air inlet flange (27-8) is arranged at the air inlet end of the intercooler air chamber (27-2) positioned at the air inlet side, the air outlet end is connected with the intercooler body (27-6), two intercooler fixing supports (27-7) are distributed at the outer side of the intercooler air chamber (27-2) at the air inlet side up and down, two opposite end faces of the intercooler body (27-6) are respectively provided with a cooling liquid water inlet pipe nozzle (27-5) and a cooling liquid water outlet pipe nozzle (27-9), the air inlet end of the intercooler air chamber (27-2) positioned at the air outlet side of the intercooler body (27-6) is connected with the intercooler body (27-6), an air outlet end is provided with an air outlet flange (27-1), a high-pressure oil-gas desorption pipeline connecting pipe nozzle II (27-3) is arranged on an intercooler air chamber (27-2) at the air outlet side and is used for being connected with a high-pressure oil-gas desorption pipeline, an intercooler support fixing hole (27-4) is further formed in the intercooler air chamber (27-2) at the air outlet side, and the intercooler support fixing hole (27-4) and two intercooler fixing supports (27-7) cooperate to integrally mount and fix the water air cooler (27).
11. A highly efficient supercharged direct-injection engine assembly arrangement as claimed in claim 5, characterized in that: the EGR cooler (42) includes: the device comprises a cooler fixing support (42-1), a cooling liquid water taking pipe (42-2), a gas taking corrugated pipe (42-3), a differential pressure sensor gas taking pipe (42-4), an EGR valve connecting flange (42-5), an EGR temperature sensor mounting seat (42-6), a cooling liquid water outlet pipe (42-7), a cooler body (42-8), a cooler gas taking flange (42-9) and a cooler gas chamber (42-10); the cooler body (42-8) is of a cuboid structure, a cooler air chamber (42-10) is arranged on the air inlet side and the air outlet side of the cooler body (42-8), the air inlet end of the cooler air chamber (42-10) located on the air inlet side of the cooler body (42-8) is connected with a cooler air inlet flange (42-9) through an air inlet corrugated pipe (42-3), the air outlet end is fixedly connected with the air inlet end of the cooler body (42-8), the air inlet end of the cooler air chamber (42-10) located on the air outlet side of the cooler body (42-8) is fixedly connected with the cooler body (42-8), an EGR valve connecting flange (42-5) is arranged at the air outlet end to be connected with an EGR valve (44), and an EGR temperature sensor mounting seat (42-6) is arranged on the cooler air chamber (42-10) on the front side of the EGR valve connecting flange (42-5) in a matching mode ) And the EGR cooler is characterized in that the EGR cooler is provided with a differential pressure sensor gas taking pipe (42-4) for facilitating installation of an EGR temperature sensor (43) and detection work of the differential pressure sensor, two opposite side surfaces of the cooler body (42-8) are respectively provided with a cooling liquid water taking pipe (42-2) and a cooling liquid water outlet pipe (42-7), the cooling liquid water taking pipe (42-2) and the cooling liquid water outlet pipe (42-7) are distributed diagonally to achieve a cooling effect, and one side surface of the EGR cooler (42) is provided with a plurality of cooler fixing supports (42-1) for facilitating installation and fixation of the EGR cooler (42).
12. The highly efficient boosted direct injection engine assembly of claim 5 further characterized in that: the three-way catalyst assembly (15) comprises a three-way catalyst heat shield (15-1), an EGR system gas taking flange (15-2), a heat exhaust sensor mounting table (15-3), a three-way catalyst fixing support (15-4), a three-way catalyst rear flange (15-5), a GPF gas taking pipe mounting table (15-6), an oxygen sensor mounting table (15-7), a GPF gas taking steel pipe (15-8), a GPF gas taking steel pipe support (15-9), a GPF gas outlet nozzle (15-10) and a three-way catalyst gas inlet flange (15-11); the main body part of the three-way catalyst assembly (15) is of a cylindrical structure, one end of the three-way catalyst assembly (15) is provided with a three-way catalyst heat-insulating cover (15-1), an air inlet outlet of the three-way catalyst heat-insulating cover (15-1) is provided with a three-way catalyst air inlet flange (15-11), an oxygen sensor mounting table (15-7) is arranged on the three-way catalyst heat-insulating cover (15-1) and used for mounting an oxygen sensor, the other end of the main body of the three-way catalyst assembly (15) is provided with a three-way catalyst rear flange (15-5) so as to be connected with an exhaust system of a whole vehicle and exhaust system to exhaust waste gas, an EGR system air taking flange (15-2) is arranged on the outer circumferential surface of the main body of the three-way catalyst assembly (15), and the EGR system air taking flange (15-2) is connected with an air taking corrugated pipe (42-3), a gas flow passage is further formed, a temperature exhaust sensor mounting table (15-3) is arranged beside the EGR system gas taking flange (15-2), two GPF gas taking steel pipes (15-8) are mounted on the outer side of the main body of the three-way catalyst assembly (15), one ends of the two GPF gas taking steel pipes (15-8) are mounted on the main body of the three-way catalyst assembly (15) through two GPF gas taking pipe mounting tables (15-6) respectively and fixed on the outer surface of the main body of the three-way catalyst assembly (15) through GPF gas taking steel pipe supports (15-9), one GPF gas outlet nozzle (15-10) is mounted at the other end of each GPF gas taking steel pipe (15-8), a plurality of three-way catalyst fixing supports (15-4) are arranged on the outer side of the main body of the three-way catalyst assembly (15), so as to fix the three-way catalyst assembly (15) on the gasoline engine body (30) integrally.
CN202210658373.2A 2022-06-10 2022-06-10 High-efficient pressure boost direct injection engine always arranges Active CN114909211B (en)

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