CN114592986A - Engine for vehicle and vehicle - Google Patents

Engine for vehicle and vehicle Download PDF

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Publication number
CN114592986A
CN114592986A CN202110187855.XA CN202110187855A CN114592986A CN 114592986 A CN114592986 A CN 114592986A CN 202110187855 A CN202110187855 A CN 202110187855A CN 114592986 A CN114592986 A CN 114592986A
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CN
China
Prior art keywords
water
water jacket
jacket
engine
cylinder
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Granted
Application number
CN202110187855.XA
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Chinese (zh)
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CN114592986B (en
Inventor
纪雷
马京卫
王晋林
沈小栋
胡佳佳
刘亚奇
于鹏飞
郄彦丽
金鑫
张绍然
孙彦波
赵金龙
李亚洲
张永静
高原
李民
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Great Wall Motor Co Ltd
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Great Wall Motor Co Ltd
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Priority to CN202110187855.XA priority Critical patent/CN114592986B/en
Publication of CN114592986A publication Critical patent/CN114592986A/en
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Publication of CN114592986B publication Critical patent/CN114592986B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00Cylinders; Cylinder heads 
    • F02F1/24Cylinder heads
    • F02F1/26Cylinder heads having cooling means
    • F02F1/36Cylinder heads having cooling means for liquid cooling
    • F02F1/40Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream 
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Abstract

The application discloses an engine and vehicle for vehicle, the engine includes: the water jacket of the cylinder cover main body is provided with a first water inlet and a first water outlet; the water jacket at the air inlet side and the water jacket at the air exhaust side are respectively provided with a second water inlet and a second water outlet, and the water jacket at the air exhaust side is respectively provided with a third water inlet and a third water outlet; the air inlet side small circulating water jacket is provided with a fourth water inlet and a fourth water outlet; cylinder cap water jacket cooling water confluence, cylinder cap water jacket cooling water confluence set up in the cylinder cap and respectively with first drain outlet the second drain outlet the third drain outlet with fourth water inlet intercommunication, cylinder cap water jacket cooling water confluence still with the delivery port of cylinder cap links to each other. The water jacket in the engine is reasonable in overall arrangement and water flow form, and cooling performance of the engine is effectively improved.

Description

Engine for vehicle and vehicle
Technical Field
The application relates to the technical field of vehicles, in particular to an engine for a vehicle and the vehicle.
Background
After the exhaust manifold is integrated with the cylinder head, the heat load of the cylinder head needs to be increased by at least 10% -20%, and the increased heat load needs to be cooled by a cooling water jacket, so that a serious challenge is brought to the cooling capacity of a cooling system; generally, most host plants increase the capacity of the cooling system by increasing the flow rate of the cooling water pump to reduce the thermal load of the engine, but using a high-flow cooling water pump increases the development cost and purchase cost of the water pump; meanwhile, when the flow of the water pump is increased to a certain degree, the flow is increased, the cooling efficiency cannot be improved, the cooling capacity is insufficient, local thermal stress concentration is easily caused, thermal fatigue, cracks and other hidden troubles are generated, and the normal use of the engine is influenced.
Disclosure of Invention
The present application is directed to solving at least one of the problems in the prior art. Therefore, one object of the present application is to provide an engine for a vehicle, in which the cylinder head water jacket is arranged integrally and the water flow form is reasonable, and the engine cooling performance is effectively improved.
The application also provides a vehicle with the engine.
An engine for a vehicle according to the present application includes: the water jacket of the cylinder cover main body is provided with a first water inlet and a first water outlet; the water jacket at the air inlet side and the water jacket at the air exhaust side are respectively provided with a second water inlet and a second water outlet, and the water jacket at the air exhaust side is respectively provided with a third water inlet and a third water outlet; the air inlet side small circulating water jacket is provided with a fourth water inlet and a fourth water outlet; cylinder cap water jacket cooling water confluence, cylinder cap water jacket cooling water confluence set up in the cylinder cap and respectively with first drain outlet the second drain outlet the third drain outlet with fourth water inlet intercommunication, cylinder cap water jacket cooling water confluence still with the delivery port of cylinder cap links to each other.
According to the engine for the vehicle, the cylinder cover water jacket is composed of the cylinder cover main body water jacket, the air inlet side water jacket, the exhaust side water jacket and the air inlet side small circulation water jacket, each part of water jacket is cooled or backwashed corresponding to different structures of the engine cylinder cover, the whole arrangement and the water flow form are reasonable, and the cooling performance of the engine is effectively improved.
According to an embodiment of the application, the first water inlet comprises: the water jacket comprises a cylinder cover main body water jacket, a first main water inlet, a first auxiliary water inlet and a first middle water inlet, wherein the first main water inlet and the first auxiliary water inlet are arranged at the front end of the cylinder cover main body water jacket, and the first middle water inlet is arranged between two adjacent combustion chambers.
According to one embodiment of the present application, the first intermediate water inlet is configured as two spaced apart; the engine further includes: the water jacket is arranged in the cylinder body and is directly communicated with one of the two first middle water inlets, and the water jacket is communicated with the other of the two first middle water inlets through a connecting water channel.
According to one embodiment of the application, the connecting waterway comprises: the water inlet device comprises an exhaust side water channel and an air inlet side water channel, wherein one end of the exhaust side water channel is communicated with the cylinder water jacket, the other end of the exhaust side water channel is communicated with the air inlet side water channel, and the other end of the air inlet side water channel is communicated with the other of the two first middle water inlets.
According to one embodiment of the application, the side water course that admits air with the contained angle has between the side water course that exhausts, the axis of side water course that exhausts with the contained angle between the upper surface of cylinder body is a, the axis of side water course that admits air with the contained angle between the upper surface of cylinder body is b, wherein, 20 ≦ a ≦ 45, 20 ≦ b ≦ 45.
According to an embodiment of the present application, the intake-side water jacket is configured as a bar-shaped water jacket including a plurality of sequentially connected arc-shaped sections, each of which is disposed outside the corresponding cylinder bore.
According to an embodiment of the present application, the second water outlet of the intake side water jacket is communicated with the cylinder head body water jacket, and a plurality of flow dividing passages are further provided between the intake side water jacket and the cylinder head body water jacket.
According to an embodiment of the present application, the exhaust side water jacket includes: an exhaust side upper water jacket and an exhaust side lower water jacket;
the third water inlet includes: a third upper water inlet port provided at a front end of the exhaust side upper water jacket and a third lower water inlet port provided at a front end of the exhaust side lower water jacket.
According to an embodiment of the application, the engine further comprises: and one end of the warm air water taking channel is communicated with the water jacket of the cylinder cover main body.
The vehicle comprises the engine, and the engine is arranged on the vehicle, so that the cooling efficiency of the engine of the vehicle is remarkably improved, the cooling of the combustion chambers of the cylinders is uniform, the combustion consistency of the cylinders is improved, the probability of occurrence of combustion cyclic variation, detonation and the like is reduced, the power performance and the economical efficiency of the engine are improved, and the market competitiveness is improved.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic illustration of a cylinder according to an embodiment of the present application;
FIG. 2 is a schematic view of one orientation of a cylinder head water jacket according to an embodiment of the present application;
FIG. 3 is a schematic view of another orientation of a cylinder head water jacket according to an embodiment of the present application;
FIG. 4 is a schematic view of an exhaust side water jacket according to an embodiment of the present application;
FIG. 5 is a schematic view of yet another orientation of a cylinder head water jacket according to an embodiment of the present application;
FIG. 6 is a schematic view of yet another orientation of a cylinder head water jacket according to an embodiment of the present application;
FIG. 7 is a partial cross-sectional view of a cylinder head water jacket according to an embodiment of the present application;
FIG. 8 is a partial cross-sectional view of a cylinder head water jacket according to an embodiment of the present application;
FIG. 9 is a partial cross-sectional view of a cylinder block and cylinder head according to the present application.
Reference numerals:
a water jacket 100 of the cylinder cover,
a head body water jacket 110, a first water inlet 111, a first main water inlet 111a, a first auxiliary water inlet 111b, a first intermediate water inlet 111c, a first drain port 112,
an inlet side water jacket 120, a second inlet port 121, a second drain port 122, an arc-shaped section 123,
an exhaust side water jacket 130, an exhaust side upper water jacket 101, an exhaust side lower water jacket 102, a third water inlet 131, a third upper water inlet 131a, a third lower water inlet 131b, a third auxiliary water inlet 131c, a third water outlet 132, a water jacket rib 133, a connecting water jacket 103,
an intake side small circulation water jacket 140, a fourth intake port 141, a fourth drain port 142,
a cylinder cover water jacket cooling water converging part 150, a water outlet 160, a temperature sensor 170, a diversion channel 180, a warm air intake channel 190,
the cylinder cover 200, the cylinder body 300, the cylinder body water jacket 310, the exhaust side water channel 22 and the air inlet side water channel 23.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.
An engine for a vehicle according to an embodiment of the present application is described below with reference to fig. 1 to 9.
The engine includes a cylinder head water jacket 100, and the cylinder head water jacket 100 includes a cylinder head main body water jacket 110, an intake side water jacket 120, an exhaust side water jacket 130, and an intake side small-circulation water jacket 140.
The head body water jacket 110 is mainly used for cooling the combustion chamber, and therefore it is necessary for the head body water jacket 110 to have a sufficient cooling effect, and the head body water jacket 110 is also a portion where the most cooling water flows through. The intake side water jacket 120 is used for cooling the intake side portion of the cylinder head, the intake side water jacket 120 may be disposed at the intake side bottom portion of the cylinder head, the exhaust side water jacket 130 is mainly used for cooling the exhaust side region of the cylinder head, and the intake side small circulation water jacket 140 may return a part of the mixed water after the above three water jacket cooling water passages into the block water jacket.
The head body water jacket 110 is provided with a first water inlet 111 and a first water discharge port 112, the intake side water jacket 120 is provided with a second water inlet 121 and a second water discharge port 122, the exhaust side water jacket 130 is provided with a third water inlet 131 and a third water discharge port 132, and the intake side small circulation water jacket 140 is provided with a fourth water inlet 141 and a fourth water discharge port 142.
The cylinder cover is also provided with a cylinder cover jacket cooling water converging part 150, the cylinder cover jacket cooling water converging part 150 is respectively communicated with the first water outlet 112, the second water outlet 122, the third water outlet 132 and the fourth water inlet 141, and the cylinder cover jacket cooling water converging part 150 is also connected with a water outlet 160 of the cylinder cover.
The cooling water discharged from the head body water jacket 110, the intake side water jacket 120, and the exhaust side water jacket 130 may be mixed in the head jacket cooling water junction 150, and then the mixed cooling water is discharged partly from the water outlet of the head and partly from the fourth water inlet 141 into the intake side small circulation water jacket 140.
A temperature sensor 170 may be provided in the cylinder head jacket cooling water junction 150, and the temperature sensor may detect a temperature of the mixed water in the cylinder head jacket cooling water junction 150. Therefore, the actual water temperature of the engine can be accurately reflected, the ECU can accurately control the oil injection system conveniently, the combustion of each cylinder is in a better state, and the economical efficiency of products is improved.
The fourth drain port 142 may communicate with a cylinder jacket in the cylinder, and a part of the mixed water in the cylinder jacket cooling water junction 150 may flow back into the cylinder jacket.
Specifically, when the engine load is small, the cooling system is in a small circulation state, and at this time, the small circulation water jacket takes water from the fourth water inlet 141 and returns to the front of the thermostat through the intake side small circulation water jacket 140 to complete small circulation; when the load of the engine is increased and the cooling system needs to be switched to a large circulation state, the thermostat closes the small circulation water return passage, the large circulation is started, and the small circulation water jacket stops working.
Alternatively, the head jacket cooling water junction 150 is communicated with the head warm air intake hole, whereby a part of the mixed cooling water in the head jacket cooling water junction 150 can participate in engine heating.
According to the engine 100 for the vehicle, the cylinder cover water jacket 100 is included, the cylinder cover water jacket 100 is composed of four parts, namely a cylinder cover main body water jacket 110, an air inlet side water jacket 120, an air outlet side water jacket 130 and an air inlet side small circulation water jacket 140, each part of water jacket is cooled or backwashed corresponding to different structures of the cylinder cover of the engine, the whole arrangement and the water flow form are reasonable, and the cooling performance of the engine is effectively improved.
According to the cylinder cover water jacket 100, the temperature of the combustion chamber of the cylinder cover is reduced by at least 50 ℃, the structural temperature of other parts is reduced by 10-60 ℃ and the like, so that the thermal stress and thermal deformation of the engine are effectively reduced, and the reliability of the engine is improved; meanwhile, the temperature field of the combustion chambers of the cylinders of the cylinder cover is uniformly distributed in a temperature gradient manner, and the combustion chambers of the cylinders are uniformly cooled, so that the combustion consistency of the cylinders is good, the probability of occurrence of combustion cyclic variation, detonation and the like is reduced, the dynamic property and the economical efficiency of the engine are improved, and the market competitiveness is improved.
In some embodiments of the present application, the first water inlet 111 includes a first main water inlet 111a provided at a front end of the head-body water jacket 110, a first auxiliary water inlet 111b, and a first intermediate water inlet 111c provided between the adjacent two combustion chambers. The cooling water in the head-body water jacket 110 mainly enters from the first water inlet 111, and partially enters from the first auxiliary water inlet 111b and the first intermediate water inlet 111 c.
In some embodiments of the present application, the first intermediate water inlet 111c is configured as two spaced apart, the engine further comprising: a block water jacket 310 provided in the block 300, the block water jacket 310 being in direct communication with one of the two first intermediate water inlets 111c, the block water jacket 310 being in communication with the other of the two first intermediate water inlets 111c through a connecting water passage.
That is, a part of the coolant in the block water jacket 310 may directly enter the head-body water jacket 110 through the one of the two first intermediate water inlets 111c, and a part of the coolant in the block water jacket 310 may also indirectly enter the head-body water jacket 110 through the connecting water passage.
The connecting waterway includes: an exhaust side water passage 22 and an intake side water passage 23, one end of the exhaust side water passage 22 communicating with the block water jacket 310, the other end of the exhaust side water passage 22 communicating with the intake side water passage 23, the other end of the intake side water passage 23 communicating with the other of the two first intermediate water inlets 111 c.
Specifically, the cooling water in the block water jacket 310 may be directly supplied to the one of the two first intermediate water inlets 111c or supplied to the other of the two first intermediate water inlets 111c through the exhaust side water passage 22 and the intake side water passage 23 to cool the cylinder head, and the cooling water in the block water jacket 310 flows from the high pressure region to the low pressure region, so that the portions in the head body water jacket 110 uniformly flow into the cooling water at the same time as much as possible, thereby ensuring the cooling effect of the head body water jacket 110 and effectively cooling the cylinder head.
Further, it can be understood that the exhaust side water channel 22 and the intake side water channel 23 are located between the adjacent cylinder bores during the circulation of the cooling water in the exhaust side water channel 22 and the intake side water channel 23, so that the cylinder block is cooled by the cooling water in the intake side water channel 23 and the exhaust side water channel 22 during the supply of the cooling water to the cylinder head body water jacket 110 by the cylinder block water jacket 310, and the cooling effect of the cylinder block can be improved, the temperature between the adjacent cylinders can be effectively reduced, the thermal deformation of the cylinder head can be further avoided, and the operation stability of the engine 100 can be improved.
An included angle is formed between the air inlet side water channel 23 and the air exhaust side water channel 22, an included angle between the axis of the air exhaust side water channel 22 and the upper surface of the cylinder body 300 is a, an included angle between the axis of the air inlet side water channel 23 and the upper surface of the cylinder body 300 is b, wherein a is more than or equal to 20 degrees and less than or equal to 45 degrees, and b is more than or equal to 20 degrees and less than or equal to 45 degrees.
Thus, the intake side water channel 23 and the exhaust side water channel 22 both satisfy the above angle range, and the connecting line of the intake side water channel 23 and the exhaust side water channel 22 is "V" shaped, so that the cooling area of the exhaust side water channel 22 and the intake side water channel 23 can be increased, the cooling effect is improved, and the intake side water channel 23 and the exhaust side water channel 22 have better cooling effect.
The capacity of the cooling water of the head body water jacket 110 is 2 to 3 times the capacity of the cooling water of the exhaust side water jacket 130, both of which are much larger than the capacity of the intake side water jacket 120, and at the same time, the area of the first water inlet 111 of the head body water jacket 110 is 4 to 5 times the area of the third water inlet 131 of the exhaust side water jacket 130, and the area of the third water inlet 131 of the exhaust side water jacket 130 is 2 to 3 times the area of the second water inlet 121 of the intake side water jacket 120, that is, the cooling water flowing through the head body water jacket cooling water junction 150 is mainly the cooling water of the head body water jacket 110.
In some embodiments of the present application, the intake-side water jacket 120 is configured as a bar-shaped water jacket including a plurality of sequentially connected arc-shaped sections 123, each arc-shaped section 123 being disposed outside the corresponding cylinder bore. Therefore, the air inlet side of the cylinder cover can be cooled by the cylinder cover main body water jacket 110 and can also be cooled by the strip-shaped water jacket, and the strip-shaped water jacket is set to be arc-shaped, so that the air inlet side of the cylinder cover can be cooled more uniformly and effectively.
In some embodiments of the present application, the second water discharge port 102 of the intake side water jacket 120 communicates with the head body water jacket 110, that is, the second water discharge port 102 of the intake side water jacket 120 does not directly communicate with the head jacket cooling water merging portion 140, but indirectly communicates with the head jacket cooling water merging portion 140 through the head body water jacket 110, and the cooling water in the intake side water jacket 120 may first enter the head body water jacket 110 through the second water discharge port 102 and then enter the head jacket cooling water merging portion 140 through the first water discharge port 101.
Further, in the present invention, a plurality of flow dividing passages 180 are further provided between the intake side water jacket 120 and the head body water jacket 110, so that the cooling water in the intake side water jacket 120 can enter the head body water jacket 110, the cooling water in the head body water jacket 110 can also enter the intake side water jacket 120, and finally the cooling water in the intake side water jacket 120 and the head body water jacket 110 both enter the head jacket cooling water junction portion 140 through the first water discharge port 101, thereby improving the cooling efficiency and the cooling uniformity of the cylinder head.
In some embodiments of the present application, the exhaust side water jacket 130 includes an exhaust side upper water jacket 101 and an exhaust side lower water jacket 102, the exhaust side upper water jacket 101 and the exhaust side lower water jacket 102 communicate with each other, and the exhaust side upper water jacket 101 and the exhaust side lower water jacket 102 are directly opposed in the up-down direction, whereby the drain side of the cylinder head can be cooled better.
Further, a plurality of connecting water jackets 103 are provided between the exhaust side upper water jacket 101 and the exhaust side lower water jacket 102, each connecting water jacket 103 serving to communicate the exhaust side upper water jacket 101 and the exhaust side lower water jacket 102. Thereby, the cooling water in the exhaust-side upper water jacket 101 and the exhaust-side lower water jacket 102 can meet each other, further enhancing the cooling efficiency of the exhaust side of the cylinder head.
The third water inlet 131 includes: a third upper water inlet 131a provided at the front end of the exhaust side upper water jacket 101 and a third lower water inlet 131b provided at the front end of the exhaust side lower water jacket 102. That is, the exhaust side upper water jacket 101 and the exhaust side lower water jacket 102 are each provided with an independent water inlet, and the cooling water entering from the respective water inlets may meet each other through the intermediate connecting water jacket 103.
Further, a first cylinder bore adjacent to the front end and a plurality of second cylinder bores located on the rear side of the first cylinder bore are provided in the cylinder. The third lower water inlets 131b are disposed at the front side of the first cylinder bores, the third water inlets 131 further include third auxiliary water inlets 131c disposed between the adjacent first and second cylinder bores and between the adjacent two second cylinder bores, and the number of the third lower water inlets 131b is less than the number of the third auxiliary water inlets 131 c.
The reason for this arrangement is that the third lower water inlet 131b is provided near the first cylinder bore and the flow rate of the water flow is fast, and has an auxiliary cooling effect on the exhaust side lower water jacket 102 near the first cylinder bore, so that only one water inlet needs to be provided at a position near the first cylinder bore to satisfy the cooling requirement.
The water jacket rib plates 133 are arranged on the exhaust side upper water jacket 101 and the exhaust side lower water jacket 102, so that the flow speed and the flow direction of cooling liquid in the exhaust water jacket can be effectively adjusted, better cooling efficiency is achieved, the temperature of the exhaust side of a cylinder cover is effectively reduced, the uniformity of cooling the cylinder cover is guaranteed to the maximum extent, and the probability of thermal deformation of the cylinder cover is reduced.
According to an embodiment of the present application, a plurality of water jacket ribs 133 are provided on each of the exhaust side upper water jacket 101 and the exhaust side lower water jacket 102; wherein the included angle between at least part of the plurality of water jacket ribs 133 on the exhaust-side upper water jacket 101 or the exhaust-side lower water jacket 102 and the outer end face of the connecting water jacket 103 is different.
The plurality of water jacket ribs 133 are arranged at different angles, specifically, at different angles from the outer end face of the connection water jacket 103. The water jacket rib 133 is at different positions, and different effects are also shown due to different included angles with the outer end face of the connecting water jacket 103.
According to an embodiment of the present application, at least part of the plurality of water jacket ribs 133 on the exhaust side upper water jacket 101 or the exhaust side lower water jacket 102 is different in shape. The water jacket rib 133 is at different positions, and the shape of the water jacket rib 133 affects the flow direction and the flow rate of the coolant.
In some embodiments of the present application, the engine further includes a warm air intake passage 190, one end of the warm air intake passage 190 is in communication with the cylinder head body water jacket 110, and the other end of the warm air intake passage 190 may be connected to an air conditioner radiator in the cabin. Thus, the warm air intake passage 190 can directly take water from the cylinder head main body water jacket 110, and the high-temperature coolant can enter the air conditioner radiator in the cabin, thereby effectively utilizing the heat generated by the engine to heat the cabin.
The vehicle of the embodiment of the present application is briefly described below.
The vehicle comprises the engine of the embodiment, and the engine is arranged on the vehicle according to the embodiment, so that the cooling efficiency of the engine of the vehicle is remarkably improved, the cooling of the combustion chambers of the cylinders is uniform, the combustion consistency of the cylinders is promoted to be good, the occurrence probability of combustion cyclic variation, detonation and the like is reduced, the power performance and the economical efficiency of the engine are favorably improved, and the market competitiveness is improved.
In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An engine for a vehicle, comprising:
the water jacket of the cylinder cover main body is provided with a first water inlet and a first water outlet;
the water jacket at the air inlet side and the water jacket at the air exhaust side are respectively provided with a second water inlet and a second water outlet, and the water jacket at the air exhaust side is respectively provided with a third water inlet and a third water outlet;
the air inlet side small circulating water jacket is provided with a fourth water inlet and a fourth water outlet;
cylinder cap water jacket cooling water confluence, cylinder cap water jacket cooling water confluence set up in the cylinder cap and respectively with first drain outlet the second drain outlet the third drain outlet with fourth water inlet intercommunication, cylinder cap water jacket cooling water confluence still with the delivery port of cylinder cap links to each other.
2. The engine for a vehicle of claim 1, wherein said first water inlet port comprises: the water jacket comprises a cylinder cover main body water jacket, a first main water inlet, a first auxiliary water inlet and a first middle water inlet, wherein the first main water inlet and the first auxiliary water inlet are arranged at the front end of the cylinder cover main body water jacket, and the first middle water inlet is arranged between two adjacent combustion chambers.
3. The engine for a vehicle according to claim 1, wherein the first intermediate water inlet port is configured as two spaced apart;
the engine further includes: the water jacket is arranged in the cylinder body and is directly communicated with one of the two first middle water inlets, and the water jacket is communicated with the other of the two first middle water inlets through a connecting water channel.
4. The engine for a vehicle of claim 3, wherein said connecting waterway comprises: the water jacket of the cylinder body is communicated with the water jacket of the cylinder body, the other end of the water jacket of the cylinder body is communicated with the water jacket of the cylinder body, and the other end of the water jacket of the cylinder body is communicated with the water jacket of the cylinder body.
5. The engine for a vehicle according to claim 4, characterized in that an angle is provided between the intake side water passage and the exhaust side water passage, an angle between an axis of the exhaust side water passage and an upper surface of the block is a, and an angle between an axis of the intake side water passage and an upper surface of the block is b, wherein a is 20 ° or more and 45 ° or less, and b is 20 ° or more and 45 ° or less.
6. The engine for a vehicle according to claim 1, characterized in that the intake-side water jacket is configured as a bar-shaped water jacket including a plurality of sequentially connected arc-shaped sections, each of which is disposed outside a corresponding cylinder bore.
7. The engine for a vehicle according to claim 6, characterized in that the second water discharge port of the intake-side water jacket is in communication with the head-body water jacket, and a plurality of branch passages are further provided between the intake-side water jacket and the head-body water jacket.
8. The engine for a vehicle according to claim 1, characterized in that the exhaust side water jacket includes: an exhaust side upper water jacket and an exhaust side lower water jacket;
the third water inlet includes: a third upper water inlet port provided at a front end of the exhaust side upper water jacket and a third lower water inlet port provided at a front end of the exhaust side lower water jacket.
9. The engine for a vehicle according to claim 1, characterized by further comprising: and one end of the warm air water taking channel is communicated with the water jacket of the cylinder cover main body.
10. A vehicle comprising an engine as claimed in any one of claims 1 to 9.
CN202110187855.XA 2021-02-09 2021-02-09 Engine for vehicle and vehicle Active CN114592986B (en)

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CN202110187855.XA CN114592986B (en) 2021-02-09 2021-02-09 Engine for vehicle and vehicle

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CN114592986A true CN114592986A (en) 2022-06-07
CN114592986B CN114592986B (en) 2023-01-13

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