CN115539236A - Engine assembly and warming system - Google Patents
Engine assembly and warming system Download PDFInfo
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- CN115539236A CN115539236A CN202211341139.3A CN202211341139A CN115539236A CN 115539236 A CN115539236 A CN 115539236A CN 202211341139 A CN202211341139 A CN 202211341139A CN 115539236 A CN115539236 A CN 115539236A
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- cylinder
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- cooling channel
- cylinder body
- egr cooler
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- 238000010792 warming Methods 0.000 title description 17
- 238000001816 cooling Methods 0.000 claims abstract description 88
- 239000007788 liquid Substances 0.000 claims abstract description 55
- 239000002826 coolant Substances 0.000 claims abstract description 33
- 230000001105 regulatory effect Effects 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 238000007789 sealing Methods 0.000 claims 1
- 239000003344 environmental pollutant Substances 0.000 abstract description 7
- 231100000719 pollutant Toxicity 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 30
- 239000002912 waste gas Substances 0.000 description 15
- 239000003921 oil Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Classifications
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- 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
- F02F1/00—Cylinders; Cylinder heads
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
- F02F1/14—Cylinders with means for directing, guiding or distributing liquid stream
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- 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
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
- F02N19/04—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines
- F02N19/10—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines by heating of engine coolants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The invention discloses an engine assembly and a warming-up system, which comprise a cylinder block body and an EGR cooler, wherein the cylinder block body is provided with a cylinder hole and a cylinder block cooling channel, the cylinder block cooling channel is used for regulating the flow direction of a cooling medium, and the cooling medium surrounds the cylinder hole; the cylinder body is also provided with a functional hole communicated with the cylinder body cooling channel, and the EGR cooler is used for hermetically arranging one end, far away from the cylinder body cooling channel, of the functional hole in the cylinder body cooling channel; the cylinder body cooling channel is provided with a liquid inlet and a liquid outlet which are positioned at the air inlet side of the engine cylinder; the functional hole is positioned on the exhaust side of the engine cylinder; the engine assembly structure can be optimized and improved, so that the engine warm-up time can be shortened, and the oil consumption and the pollutant emission of the engine can be effectively reduced.
Description
Technical Field
The invention relates to the field of engines, in particular to an engine assembly and a warming system.
Background
With the stricter and stricter fuel consumption regulations of the whole vehicle, the high heat efficiency of the engine becomes the most important development target, wherein the application of the EGR technology is particularly important; the waste gas in the exhaust pipe is introduced into the cylinder again, so that the knocking of the gasoline engine can be effectively inhibited, the compression ratio of the engine is greatly improved, and the waste gas introduced into the cylinder can reduce the combustion temperature and reduce the heat transfer loss, so that the heat efficiency of the engine is obviously improved; in the existing engine assembly, an EGR system is arranged by using an EGR inlet pipe, an EGR cooler, an EGR valve, an EGR outlet pipe and the like, all parts are arranged at the periphery of an engine, the EGR cooler occupies a large part of space, so that the overall size of the engine is increased, the adaptability of a cabin is reduced, and the cost of the engine is increased by using the EGR cooler; in addition, the vehicle is started under the condition of low-temperature and severe cold environment, and the engine warming time is longer; the engine warming-up refers to the process from the cold start of the engine to the time when the temperature of the engine coolant and the lubricating oil reaches the normal working temperature; the engine has the advantages that the amount of pollutants discharged during cold start and idling of the engine is large, the oil consumption is also large, the requirements for the emission and the oil consumption of the engine are continuously improved along with the continuous development of the automobile industry, the engine is rapidly warmed up, and the oil consumption of the engine and the emission of the pollutants can be effectively reduced.
Therefore, in order to solve the above problems, an engine assembly and a warming-up system are needed, which can optimize and improve the engine assembly and the warming-up system, so that the engine warming-up time can be shortened, and the oil consumption of the engine and the emission of pollutants can be effectively reduced.
Disclosure of Invention
In view of this, the present invention provides an engine assembly and a warming-up system, which can optimize and improve the structure of the engine assembly, so as to shorten the warming-up time of the engine, and effectively reduce the oil consumption of the engine and the emission of pollutants.
The engine assembly comprises a cylinder block body and an EGR cooler, wherein the cylinder block body is provided with a cylinder hole and a cylinder block cooling channel, the cylinder block cooling channel is used for regulating the flow direction of a cooling medium, and the cooling medium surrounds the cylinder hole; the cylinder body is also provided with a functional hole communicated with the cylinder body cooling channel, and the EGR cooler hermetically arranges one end of the functional hole, which is far away from the cylinder body cooling channel, in the cylinder body cooling channel.
Further, the cylinder body cooling channel is provided with a liquid inlet and a liquid outlet which are simultaneously positioned on the air inlet side of the engine cylinder; the functional holes are positioned on the exhaust side of the engine cylinder.
Furthermore, the cylinder holes penetrate through the cylinder block body along the height direction, and the cylinder holes are transversely arranged; the cylinder block cooling channel surrounds the plurality of cylinder bores in the circumferential direction of the cylinder bores.
Furthermore, the functional hole is longitudinally provided with a cooling channel communicated with the cylinder body.
Further, the opening direction of the liquid inlet, the opening direction of the liquid outlet and the opening direction of the functional hole are parallel; the liquid inlet is close to one of the cylinder holes in the front end in the transverse direction, the liquid outlet is close to one of the cylinder holes in the rear end in the transverse direction, and the functional hole is located between the liquid inlet and the liquid outlet in the transverse direction.
Further, cylinder body cooling channel is cyclic annular in the projection of direction of height, the inlet intercommunication is at the horizontal front end of cylinder body cooling channel, the liquid outlet intercommunication is at the horizontal rear end of cylinder body cooling channel, the functional hole intercommunication is at the horizontal middle part of cylinder body cooling channel.
Further, a front water jacket pin is arranged in the cylinder body cooling channel, the front water jacket pin is arranged on the transverse rear side of the liquid inlet, a front circulation gap is formed between the front water jacket pin and the cylinder body cooling channel, and the cross section size of the front circulation gap is smaller than that of the cylinder body cooling channel; the cylinder body cooling channel is internally provided with a rear water jacket pin which is arranged at the transverse rear side of the liquid outlet, a rear circulation gap is formed between the rear water jacket pin and the cylinder body cooling channel, and the cross section size of the rear circulation gap is smaller than that of the cylinder body cooling channel.
Further, back water jacket round pin is located between function hole and the liquid outlet, the inlet is located between preceding water jacket round pin and the function hole, preceding water jacket round pin is located between inlet and the liquid outlet.
Furthermore, the cylinder body cooling channel is provided with a flow guide bend, the flow guide bend protrudes towards the central axis of the cylinder hole along the longitudinal direction, and the flow guide bend is formed between the cylinder holes which are adjacent along the transverse direction.
Further, the periphery of the function hole protrudes outwards to form a mounting seat, and the EGR cooler is mounted on the mounting seat to form a seal for one end, far away from the cylinder body cooling channel, of the function hole.
The scheme also discloses an engine warming system based on the engine assembly, and the engine assembly further comprises an air inlet manifold communicated with an air inlet of the cylinder body and an exhaust manifold communicated with an air outlet of the cylinder body; exhaust manifold passes through valve A and EGR cooler intercommunication, the EGR cooler passes through valve B and intake manifold intercommunication, valve A connects the inlet end at the EGR cooler, valve B connects the end of giving vent to anger at the EGR cooler, valve A is used for adjusting exhaust manifold and discharges the gas output to the EGR cooler, valve B is used for adjusting the gas output that the EGR cooler discharged to intake manifold.
Further, the device also comprises a valve C connected with the exhaust manifold, wherein the valve C is used for adjusting the gas output of the exhaust manifold to the external environment;
or the valve A is provided with a valve A gas outlet I and a valve A gas outlet II, the valve A gas outlet I is communicated with the gas inlet end of the EGR cooler, the valve A gas outlet II is communicated with the external environment, and the valve A is also used for adjusting the gas output quantity of the exhaust manifold discharged to the external environment.
Further, the device also comprises a valve D connected with the EGR cooler, wherein the valve D is used for adjusting the gas output discharged by the EGR cooler to the external environment;
or the valve B is provided with a valve B air outlet I and a valve B air outlet II, the valve B air outlet I is communicated with the air inlet end of the air inlet manifold, the valve B air outlet II is communicated with the external environment, and the valve B is also used for adjusting the air output of the EGR cooler discharged to the external environment.
The invention has the beneficial effects that: according to the engine assembly and the warming-up system disclosed by the invention, the EGR cooler is integrated on the cylinder body, the heat of the exhaust gas can be concentrated to the EGR cooler when the engine is in cold start, and the heat is transferred to the cooling medium, and the cooling medium is in an internal circulation state in the cylinder body when the engine is in cold start, so that the heat of the engine in cold start is utilized by the cooling medium, the warming-up time of the engine can be shortened, and the oil consumption of the engine and the emission of pollutants are effectively reduced; the utilization efficiency of the waste gas heat passing through the EGR cooler can be improved, and the efficiency of increasing the temperature of the cooling medium in the cylinder block can be improved, so that the aim of quickly warming up is fulfilled; meanwhile, the structure of the engine is more compact, the use of parts is reduced, and the failure rate is reduced.
Drawings
The invention is further described below with reference to the following figures and examples:
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic front view of the present invention;
FIG. 4 isbase:Sub>A schematic view of the structure of FIG. 3 taken along line A-A;
FIG. 5 is a schematic flow chart of an engine warm-up system based on the engine assembly.
Detailed Description
Fig. 1 is a schematic structural view of the present invention, and as shown in the figure, an engine assembly in the present embodiment includes a cylinder block body 1 and an EGR cooler 2, the cylinder block body 1 has a cylinder bore 3 and a block cooling passage 4, the block cooling passage 4 is used for specifying a flow direction of a cooling medium, and the cooling medium forms an enclosure for the cylinder bore 3; the cylinder block body 1 is also provided with a functional hole communicated with the cylinder block cooling channel 4, and the EGR cooler 2 is arranged on the cylinder block cooling channel 4 in a manner that one end of the functional hole, which is far away from the cylinder block cooling channel 4, is sealed. The EGR cooler is provided with an air inlet and an air outlet, the air inlet is connected with an exhaust manifold in the engine, the air outlet is used for discharging gas after heat exchange to a preset position, the preset position can be an air inlet manifold or an external environment or a purification system, and the like, and the details are not repeated, the air outlet is connected with a two-way valve, the near air end of the two-way valve is communicated with the air outlet, one air outlet end of the two-way valve is communicated with the EGR valve, the other air outlet end of the two-way valve is communicated with the external environment, a valve port of the two-way valve is adjusted according to using conditions, so that the air outlet can meet the utilization of EGR circulating waste gas and has an exhaust function, and the use of parts is reduced, the EGR cooler 2 is integrated on the engine body 1, the heat of the waste gas can be concentrated to the EGR cooler when the engine is in cold starting, and is transferred to the cooling medium, and the cooling medium is in an internal circulation state when the engine is in cold starting, so that the cylinder body is utilized by the cooling medium, the warm-up time of the engine can be shortened, and the oil consumption of the engine and the emission of pollutants can be effectively reduced; the utilization efficiency of the waste gas heat passing through the EGR cooler can be improved, and the efficiency of increasing the temperature of the cooling medium in the cylinder block can be improved, so that the aim of quickly warming up is fulfilled; meanwhile, the structure of the engine is more compact, the use of parts is reduced, and the failure rate is reduced.
In this embodiment, the cylinder block cooling channel 4 has a liquid inlet 5 and a liquid outlet 6 which are both located on the air inlet side of the engine cylinder; the functional hole is positioned on the exhaust side of the engine cylinder; the heating efficiency of the warming machine is improved, and the utilization rate of waste gas heat is improved; the fully flowing warming-up under the self-circulation condition of the cooling medium in the cylinder body cooling channel 4 is ensured, the temperature of the cooling medium is further maintained, the temperature influence of the external environment on the cooling medium is reduced, and meanwhile, the engine can be conveniently assembled with other parts of the vehicle body when being carried on the vehicle.
In this embodiment, the cylinder holes 3 penetrate through the cylinder block body 1 in the height direction, and the cylinder holes 3 are arranged in the transverse direction; the block cooling channel 4 surrounds several cylinder bores 3 in the circumferential direction of the cylinder bores 3. As shown in the drawing, the cylinder holes 3 are opened in parallel to the height direction, and the cylinder holes 3 are four arranged on the cylinder block body 1 at equal intervals in the lateral direction.
In the embodiment, the functional holes are longitudinally communicated with the cylinder body cooling channel 4; the opening direction of the liquid inlet 5, the opening direction of the liquid outlet 6 and the opening direction of the functional hole are parallel; liquid inlet 5 is close to one of cylinder holes 3 located at the front end in the transverse direction among cylinder holes 3, and liquid outlet 6 is close to one of cylinder holes 3 located at the rear end in the transverse direction among cylinder holes 3, and the functional hole is located between liquid inlet 5 and liquid outlet 6 in the transverse direction. As shown in the figure, the projection of the cylinder cooling channel 4 in the height direction is annular, the annular shape forms a circumferential enclosure for the four cylinder holes 3, the liquid inlet 5 is communicated with the transverse front end of the cylinder cooling channel 4, and the liquid outlet 6 is communicated with the transverse rear end of the cylinder cooling channel 4; the functional hole is communicated with the transverse middle part of the cylinder body cooling channel 4, so that the flow direction of a cooling medium can be specified, and the temperature rise requirement of a preset position is met.
In this embodiment, the projection of the cylinder cooling channel 4 in the height direction is annular, the liquid inlet 5 is communicated with the transverse front end of the cylinder cooling channel 4, the liquid outlet 6 is communicated with the transverse rear end of the cylinder cooling channel 4, and the functional hole is communicated with the transverse middle of the cylinder cooling channel 4. As shown in the figure, cylinder body cooling channel 4 encircles in four cylinder hole axial direction's circumference, improves heat exchange efficiency to reach anticipated intensification demand, and inlet 5 and liquid outlet 6 are kept away from on horizontal, can avoid the direct derivation by liquid outlet 6 of coolant through inlet 5, improve the warm-up effect.
In this embodiment, a front water jacket pin 7 is arranged in the cylinder body cooling channel 4, the front water jacket pin 7 is arranged on the transverse rear side of the liquid inlet 5, a front flow gap is formed between the front water jacket pin 7 and the cylinder body cooling channel 4, and the cross section size of the front flow gap is smaller than that of the cylinder body cooling channel 4; a rear water jacket pin 8 is arranged in the cylinder body cooling channel 4, the rear water jacket pin 8 is arranged on the transverse rear side of the liquid outlet 6, a rear circulation gap is formed between the rear water jacket pin 8 and the cylinder body cooling channel 4, and the cross section size of the rear circulation gap is smaller than that of the cylinder body cooling channel 4. The cross section is the cross section shown in the drawing A, namely the cross section dimension of the cylinder cooling channel 4 is the width dimension of the cylinder cooling channel 4, and the nearest dimension of the front water jacket pin/the rear water jacket pin adjacent to the cylinder cooling channel 4 is the cross section dimension of the corresponding part (front circulation gap/rear circulation gap), so that the flow direction of the cooling medium can be specified more, and the cooling requirement is met; the liquid inlet 5 and the liquid outlet 6 are far away from each other in the transverse direction, so that a weak cooling channel close to the air inlet side of an engine cylinder and a strong cooling channel close to the exhaust side of the engine cylinder are formed between the front water jacket pin 7 and the rear water jacket pin 8; most of the cooling medium entering from the liquid inlet 5 is filled in the strong cooling channel and then discharged through the liquid outlet 6 after passing through the rear water jacket pin, and a small part of the cooling medium entering from the liquid inlet 5 is filled in the weak cooling channel and then discharged through the liquid outlet 6 after passing through the rear water jacket pin.
In this embodiment, back water jacket round pin 8 is located between function hole and liquid outlet 6, inlet 5 is located between preceding water jacket round pin 7 and the function hole, preceding water jacket round pin 7 is located between inlet 5 and liquid outlet 6. So that the flow direction of the cooling medium is further defined, i.e. the cooling medium entering through the inlet port 4 is mostly filled in the strong cooling channel near the exhaust side of the engine cylinder and then discharged to the outlet port 6 through the rear water jacket pin 8; the small part of the cooling medium entering through the liquid inlet 5 is discharged to the liquid outlet 6 through the front water sleeve pin 7, so that the detention of the cooling medium in the cooling channel is improved, and the warming effect is improved.
In this embodiment, the cylinder block cooling passage 4 has a flow guide bend that is protruded in the longitudinal direction toward the central axis of the cylinder bores 3, and the flow guide bend is formed between the cylinder bores 3 adjacent in the lateral direction. As shown in the figure, two flow guiding bends oppositely arranged in the longitudinal direction are arranged between each two adjacent cylinder bores 3, so that the flow speed of the cooling medium in the cooling channel can be reduced, and the warming-up efficiency of the cooling medium can be further increased.
In this embodiment, the periphery of the function hole protrudes outward to form a mounting seat, and the EGR cooler 2 is mounted to the mounting seat to form a seal against the end of the function hole away from the block cooling passage 4. As shown in the figure, the longitudinal outer side of the functional hole forms a mounting seat, namely, the longitudinal direction is away from the central axis of the cylinder hole, the EGR cooler 2 is mounted in the mounting seat, and the EGR cooler 2 has a heat exchange section built in the cylinder cooling passage 4, so that when the EGR cooler 2 cools the exhaust gas, heat can be transferred to the cooling medium, and the effect of quick warm-up is achieved.
The scheme also discloses an engine warming system based on the engine assembly, and the engine assembly further comprises an air inlet manifold communicated with an air inlet of the cylinder body and an exhaust manifold communicated with an air outlet of the cylinder body; the exhaust manifold is communicated with the EGR cooler through a valve A, the EGR cooler is communicated with the intake manifold through a valve B, the valve A is connected to the air inlet end of the EGR cooler, the valve B is connected to the air outlet end of the EGR cooler, the valve A is used for adjusting the air outlet amount of the exhaust manifold discharged to the EGR cooler, and the valve B is used for adjusting the air outlet amount of the EGR cooler discharged to the intake manifold; the valve C is connected to the exhaust manifold and is used for adjusting the gas output of the exhaust manifold to the external environment; or the valve A is provided with a valve A air outlet I and a valve A air outlet II, the valve A air outlet I is communicated with the air inlet end of the EGR cooler, the valve A air outlet II is communicated with the external environment, and the valve A is also used for adjusting the air output quantity of the exhaust manifold discharged to the external environment; the system also comprises a valve D connected with the EGR cooler, wherein the valve D is used for adjusting the air output discharged to the external environment by the EGR cooler; or the valve B is provided with a valve B air outlet I and a valve B air outlet II, the valve B air outlet I is communicated with the air inlet end of the air inlet manifold, the valve B air outlet II is communicated with the external environment, and the valve B is also used for adjusting the air output of the EGR cooler discharged to the external environment. As shown in the figure, the scheme comprises a valve C connected with an exhaust manifold, wherein the valve C is used for adjusting the gas output discharged to the external environment by the exhaust manifold; the valve B is provided with a valve B air outlet I and a valve B air outlet II, and any one of two-channel valves in the prior art can be selected as the valve B so as to realize the exhaust function of the EGR cooling gas in a preset mode, and the details are not repeated; the air outlet I of the valve B is communicated with the air inlet end of the air inlet manifold, the air outlet II of the valve B is communicated with the external environment, and the valve B is also used for adjusting the air output quantity discharged to the external environment by the EGR cooler; the structure compactness, the control accuracy and the convenience are improved; of course, the valve C in this embodiment may not be used, so that the part of the exhaust gas entering the EGR cooler from the valve a may be controlled, and will not be described in detail herein.
The engine assembly also comprises an air filter, a supercharger, an intercooler, a throttle valve, a catalyst and the like belonging to an air intake and exhaust system, wherein during air intake, fresh air is introduced into a pressure wheel end of the supercharger through the air filter, when an EGR valve is controlled to be opened, EGR circulating waste gas is introduced into the pressure wheel end of the supercharger through an air outlet I of a valve B and is mixed with the fresh air, the mixed gas sequentially passes through the intercooler and the throttle valve to reach an air intake manifold, when the EGR valve is controlled to be closed, the fresh air and the EGR circulating waste gas continuously enter the air intake manifold in a set mode, during exhaust, the waste gas enters the catalyst through a turbine end of the supercharger through an exhaust manifold, and then is directly discharged to the external environment or enters an EGR cooler to be discharged to the external environment, or part of the waste gas is directly discharged to the external environment and part of the waste gas is recycled through the EGR cooler; according to the scheme, due to the use of the valve C and the valve A, when the engine is warmed up, the valve C is controlled to be closed, the valve A is controlled to be opened, and the air outlet II of the valve B is controlled to be opened, all waste gas discharged by the exhaust manifold is used for warming up in the state, and the waste gas is discharged to the external environment through the air outlet II of the valve B after warming up; when the valve C is controlled to be opened, part of gas passing through the catalyst is directly discharged to the external environment; when the EGR valve is opened, the exhaust gas from the air outlet I of the valve B is recycled and enters an intake manifold according to a set amount, the combination of the valve A and the valve C is matched to control the amount of the exhaust gas entering an EGR cooler, the combination of the valve B and the EGR valve is matched to control the amount of the recycled exhaust gas, in this state, the valve A, the valve B or the valve C can be controlled to discharge redundant exhaust gas to the external environment in any one or any combination mode, in the scheme, the set amount of the exhaust gas passing through the EGR valve is controlled at the valve A, namely the amount of the exhaust gas entering the EGR cooler through the valve A is the set amount of the exhaust gas passing through the EGR valve, in this state, the air outlet II of the valve B is completely closed, the valve A and the valve C guide the set amount of the exhaust gas into the EGR cooler according to a set opening degree, the effectiveness of the use of the EGR cooler is improved, the load of the cooling system after warming up is reduced, the air intake and exhaust system, the valve A, the valve B and the valve C are controlled by an ECU of a vehicle, the control mode and a communication mode belong to the prior art, and are not repeated;
in this embodiment, the function of quickly warming up the engine can be realized through the adjustment of the valve a, the valve B and the valve C, and meanwhile, the structure of the engine is more compact, the use of parts is reduced, and the failure rate is reduced. According to the scheme, the EGR cooler 2 is integrated on the cylinder body 1, so that the utilization efficiency of the heat of EGR waste gas can be improved, the efficiency of increasing the temperature of a cooling medium in the cylinder body can be improved, and the aim of quickly warming up is fulfilled; meanwhile, the structure of the engine is more compact, the use of parts is reduced, and the failure rate is reduced; the working principle of the engine air inlet system is as follows: air is filtered to remove impurities by an air filter, flows through an air flow meter, enters an air inlet manifold through an air inlet channel, is mixed with gasoline sprayed by an oil nozzle to form oil gas with a proper proportion, and is sent into a cylinder by an air inlet valve to ignite and burn to generate power; in an exhaust system, exhaust gas after combustion in an engine cylinder is exhausted out of the engine through an exhaust manifold, the engine is quickly warmed up by utilizing the part of heat energy when the engine is in cold start, an EGR cooler installation chamber and a flange are integrated on the exhaust side of a cylinder block, the EGR cooler is installed on the exhaust side of the cylinder block, a radiating fin of the EGR cooler extends into a cylinder block cooling channel 4, the EGR exhaust gas is directly cooled by cooling liquid in the cylinder block cooling channel 4, the temperature rise of the cooling liquid is accelerated in the cold start process of the engine, and the effect of quickly warming up the engine can be achieved; the EGR cooler fins are arranged in a water jacket cavity integrated with the cylinder body, so that the arrangement of cooling water pipelines is reduced; when the engine is started in a cold state, the cooling liquid is quickly heated, so that the effect of quick warming is achieved; in the normal operation process of the engine, when the EGR valve is closed, the valve A is controlled to be directly closed, so that the exhaust gas is prevented from entering the EGR cooler, the EGR can continue to work according to a set mode after the engine reaches the set temperature, and the load of an engine cooling system is reduced.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (10)
1. An engine assembly, characterized in that: the EGR cooler comprises a cylinder block body and an EGR cooler, wherein the cylinder block body is provided with a cylinder hole and a cylinder block cooling channel, the cylinder block cooling channel is used for regulating the flow direction of a cooling medium, and the cooling medium forms an enclosure for the cylinder hole; the cylinder body is also provided with a functional hole communicated with the cylinder body cooling channel, and one end of the functional hole, which is far away from the cylinder body cooling channel, of the EGR cooler is hermetically arranged in the cylinder body cooling channel; the cylinder body cooling channel is provided with a liquid inlet and a liquid outlet which are positioned at the air inlet side of the engine cylinder; the functional holes are located on the exhaust side of the engine cylinder.
2. The engine assembly of claim 1, wherein: the cylinder holes penetrate through the cylinder block body along the height direction, and the number of the cylinder holes is a plurality of the cylinder holes which are arranged along the transverse direction; the cylinder block cooling channel surrounds the plurality of cylinder bores in the circumferential direction of the cylinder bores.
3. The engine assembly of claim 2, wherein: the functional hole is longitudinally provided with a cooling channel communicated with the cylinder body; the opening direction of the liquid inlet, the opening direction of the liquid outlet and the opening direction of the functional hole are parallel; the liquid inlet is close to one of the cylinder holes in the front transverse end, the liquid outlet is close to one of the cylinder holes in the rear transverse end, and the functional hole is located between the liquid inlet and the liquid outlet in the transverse direction.
4. An engine warming-up system according to claim 3, wherein: the projection of the cylinder body cooling channel in the height direction is annular, the liquid inlet is communicated with the transverse front end of the cylinder body cooling channel, the liquid outlet is communicated with the transverse rear end of the cylinder body cooling channel, and the functional hole is communicated with the transverse middle part of the cylinder body cooling channel; a front water jacket pin is arranged in the cylinder body cooling channel, the front water jacket pin is arranged on the transverse rear side of the liquid inlet, a front circulation gap is formed between the front water jacket pin and the cylinder body cooling channel, and the cross section size of the front circulation gap is smaller than that of the cylinder body cooling channel; the cylinder body cooling channel is internally provided with a rear water jacket pin which is arranged on the transverse rear side of the liquid outlet, a rear circulation gap is formed between the rear water jacket pin and the cylinder body cooling channel, and the cross section size of the rear circulation gap is smaller than that of the cylinder body cooling channel.
5. The engine assembly of claim 4, wherein: the back water jacket round pin is located between function hole and the liquid outlet, the inlet is located between preceding water jacket round pin and the function hole, preceding water jacket round pin is located between inlet and the liquid outlet.
6. The engine assembly of claim 1, wherein: the periphery of the function hole protrudes outwards to form a mounting seat, and the EGR cooler is mounted on the mounting seat to form sealing for one end, far away from the cylinder body cooling channel, of the function hole.
7. The engine warming-up system according to claim 1, characterized in that: the cylinder body cooling channel is provided with a flow guide bend, the flow guide bend protrudes towards the central axis of the cylinder hole along the longitudinal direction, and the flow guide bend is formed between the cylinder holes which are adjacent along the transverse direction.
8. An engine warming-up system based on the engine assembly according to any one of claims 1 to 7, characterized in that: the engine assembly also comprises an air inlet manifold communicated with an air inlet of the cylinder body and an exhaust manifold communicated with an air outlet of the cylinder body; the exhaust manifold passes through valve A and EGR cooler intercommunication, the EGR cooler passes through valve B and intake manifold intercommunication, valve A connects the inlet end at the EGR cooler, valve B connects the end of giving vent to anger at the EGR cooler, valve A is used for adjusting the gas output that exhaust manifold discharged to the EGR cooler, valve B is used for adjusting the gas output that the EGR cooler discharged to intake manifold.
9. The engine warming-up system according to claim 8, characterized in that: the valve C is connected with the exhaust manifold and is used for adjusting the gas output of the exhaust manifold to the external environment;
or the valve A is provided with a valve A gas outlet I and a valve A gas outlet II, the valve A gas outlet I is communicated with the gas inlet end of the EGR cooler, the valve A gas outlet II is communicated with the external environment, and the valve A is also used for adjusting the gas output quantity of the exhaust manifold discharged to the external environment.
10. The engine warming-up system according to claim 8, characterized in that: the system also comprises a valve D connected with the EGR cooler, wherein the valve D is used for adjusting the gas output discharged by the EGR cooler to the external environment;
or the valve B is provided with a valve B gas outlet I and a valve B gas outlet II, the valve B gas outlet I is communicated with the gas inlet end of the gas inlet manifold, the valve B gas outlet II is communicated with the external environment, and the valve B is also used for adjusting the gas output quantity of the EGR cooler discharged to the external environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211341139.3A CN115539236A (en) | 2022-10-30 | 2022-10-30 | Engine assembly and warming system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211341139.3A CN115539236A (en) | 2022-10-30 | 2022-10-30 | Engine assembly and warming system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115539236A true CN115539236A (en) | 2022-12-30 |
Family
ID=84718856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211341139.3A Pending CN115539236A (en) | 2022-10-30 | 2022-10-30 | Engine assembly and warming system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115539236A (en) |
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2022
- 2022-10-30 CN CN202211341139.3A patent/CN115539236A/en active Pending
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Application publication date: 20221230 Assignee: Luzhou Rongda Intelligent Transmission Co.,Ltd. Assignor: Celes Group Co.,Ltd. Contract record no.: X2023500000006 Denomination of invention: Engine assembly and warm-up system License type: Exclusive License Record date: 20230608 |