WO2021115448A1 - Culasse pour moteur et moteur comprenant celle-ci - Google Patents

Culasse pour moteur et moteur comprenant celle-ci Download PDF

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Publication number
WO2021115448A1
WO2021115448A1 PCT/CN2020/135871 CN2020135871W WO2021115448A1 WO 2021115448 A1 WO2021115448 A1 WO 2021115448A1 CN 2020135871 W CN2020135871 W CN 2020135871W WO 2021115448 A1 WO2021115448 A1 WO 2021115448A1
Authority
WO
WIPO (PCT)
Prior art keywords
cylinder head
cooling channel
thermostat
cooling
head body
Prior art date
Application number
PCT/CN2020/135871
Other languages
English (en)
Chinese (zh)
Inventor
张珍源
蒋旭东
Original Assignee
赛格威科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 赛格威科技有限公司 filed Critical 赛格威科技有限公司
Publication of WO2021115448A1 publication Critical patent/WO2021115448A1/fr

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Classifications

    • 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
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • 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
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • 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 
    • F02F1/24—Cylinder heads
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/28—Cylinder heads having cooling means for air cooling
    • F02F1/30—Finned cylinder heads
    • F02F1/34—Finned cylinder heads with means for directing or distributing cooling medium 
    • 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 
    • F02F1/24—Cylinder heads
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream 
    • 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 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads

Definitions

  • the present disclosure relates to the field of engine technology, and in particular to a cylinder head of an engine and an engine having the same.
  • the cylinder head is installed on the cylinder block to seal the cylinder from the upper part and form a combustion chamber.
  • the cylinder head is often in contact with high-temperature and high-pressure gas, so the cylinder head bears a great thermal load and mechanical load.
  • the temperature around the combustion chamber of the engine is very low.
  • the coolant is directly flowed to the radiator and all the coolant is heated to the normal operating temperature range of the engine, the heating time will be very long. Therefore, the engine is generally equipped with cooling channels, but the overall cooling channels are complicated and the layout is chaotic.
  • an object of the present disclosure is to provide a cylinder head of an engine, which has a compact structure and a reasonable layout of cooling channels, thereby facilitating the flow of coolant in the cooling channels.
  • the present disclosure also proposes an engine with the above cylinder head.
  • the cylinder head of an engine includes a cylinder head body provided with a first cooling passage and a second cooling passage, the first cooling passage is provided inside the cylinder head body, and the first cooling passage is provided inside the cylinder head body.
  • the two cooling channels are arranged outside the cylinder head body, the first cooling channel and the second cooling channel are in communication, and an installation space with an opening is provided at the connection place, a thermostat, the thermostat is arranged in the The installation space; a thermostat cover, the thermostat cover is installed at the opening.
  • the cooling liquid can flow from the first cooling channel to the second cooling channel, thereby speeding up the warm-up of the engine.
  • the cooperation of the thermostat, the first cooling channel, the second cooling channel and the thermostat cover can make the structure of the cylinder head compact, can integrate the second cooling channel, can make the layout of the cooling channel reasonable, and facilitate the flow of the coolant in the cooling channel .
  • the cylinder head body has an intake side and an exhaust side, the intake side is provided with an intake hole, the exhaust side is provided with an exhaust passage, and the second cooling passage Set on the intake side.
  • the second cooling channel is disposed below the air inlet hole.
  • the cylinder head body is formed with a chain cavity
  • the second cooling channel has a liquid outlet
  • the chain cavity and the liquid outlet are provided at one end of the cylinder head body, so The installation space is arranged at the other end of the cylinder head body.
  • the thermostat includes: a main valve and an auxiliary valve, the main valve and the auxiliary valve are selectively opened, and the auxiliary valve is used to open or close the first cooling passage And the flow path between the second cooling channel.
  • the thermostat cover is provided with a channel interface, the channel interface communicates with the radiator, and the main valve is used to open or close the channel interface and the radiator. Flow path.
  • the thermostat further includes: a housing, the main valve and the auxiliary valve are provided in the housing, a mounting plate is formed on the outer periphery of the housing, and the mounting space A groove is formed, and the mounting plate is accommodated in the groove.
  • the thermostat cover is detachably installed in the installation space.
  • the thermostat cover and the installation space are correspondingly provided with a plurality of installation holes through which fasteners pass.
  • the cylinder head of the engine according to the present disclosure includes a cylinder head body provided with a first cooling passage and a second cooling passage, the first cooling passage is provided inside the cylinder head body, and the second cooling The channel is arranged outside the cylinder head body, the first cooling channel and the second cooling channel are in communication; a thermostat, the thermostat is arranged in the first cooling channel and the second cooling channel ’S connectivity.
  • the cylinder head body has an intake side and an exhaust side, the intake side is provided with an intake hole, the exhaust side is provided with an exhaust passage, and the second cooling passage Set on the intake side.
  • the second cooling channel is disposed below the air inlet hole.
  • the cylinder head body is formed with a chain cavity
  • the second cooling channel has a liquid outlet
  • the chain cavity and the liquid outlet are provided at one end of the cylinder head body, so
  • the thermostat is arranged at the other end of the cylinder head body.
  • the thermostat includes: a main valve and an auxiliary valve, the main valve and the auxiliary valve are selectively opened, and the auxiliary valve is used to open or close the first cooling passage And the flow path between the second cooling channel.
  • the cylinder head of the engine includes the embodiment of the first aspect.
  • Figure 1 is a front cross-sectional view of a cylinder head according to an embodiment of the present disclosure
  • Fig. 2 is a schematic diagram of a fully opened auxiliary valve of a cylinder head according to an embodiment of the present disclosure
  • Fig. 3 is a schematic diagram of a main valve of a cylinder head being fully opened according to an embodiment of the present disclosure.
  • 100 cylinder head; 10: cylinder head body; 11: second cooling channel; 111: liquid outlet; 12: first cooling channel; 13: installation space; 14: groove; 20: chain cavity; 30: air intake Side; 31: air inlet; 40: exhaust side; 41: exhaust channel; 50: thermostat; 51: auxiliary valve; 52: shell; 53: mounting plate; 54: main valve; 60: thermostat ⁇ ; 61: Channel interface.
  • the cylinder head 100 of an engine according to an embodiment of the present disclosure is described below with reference to FIGS. 1 to 3, and the cylinder head 100 may be applied to an engine of a vehicle.
  • the cylinder head 100 of the engine includes: a cylinder head body 10, a thermostat 50 and a thermostat cover 60.
  • the cylinder head body 10 is provided with a first cooling channel 12 and a second cooling channel 11, the first cooling channel 12 is provided inside the cylinder head body 10, and the second cooling channel 11 is provided in the cylinder head.
  • the first cooling channel 12 and the second cooling channel 11 can be communicated, and an installation space 13 with an opening is provided at the connection between the two.
  • a space is formed in the installation space 13 and other components can be installed in the installation space 13.
  • the second cooling channel 11 is a part of the cooling channel.
  • Both the first cooling channel 12 and the second cooling channel 11 can circulate cooling liquid.
  • the direction of the cooling liquid in the first cooling channel 12 is from left to right, and the direction of cooling liquid in the second cooling channel 11 is from the right.
  • the cooling liquid can flow from the first cooling channel 12 to the second cooling channel 11.
  • the first cooling channel 12 and the second cooling channel 11 can circulate the cooling liquid, which is beneficial to the uniform heating and cooling of the engine, can speed up the process of heating and cooling the engine, and can also save the starting time of the car.
  • the thermostat 50 can be arranged in the installation space 13.
  • the thermostat 50 can be arranged in the installation space 13 to prevent the thermostat 50 from being damaged by foreign substances.
  • the thermostat 50 can help switch between the two This kind of coolant circulation method, in this way, the thermostat 50 can help speed up the warm-up of the engine, and also speed up the cooling process of the engine.
  • the thermostat cover 60 is installed at the opening, and the thermostat cover 60 is provided on the outer periphery of the thermostat 50.
  • the thermostat 50 is an inner layer part
  • the thermostat cover 60 is an outer layer part
  • the thermostat cover 60 is a protective layer of the thermostat 50.
  • the thermostat cover 60 can protect the thermostat 50, and can also prevent the structure of the thermostat 50 from loosening and falling off. In this way, the thermostat cover 60 can ensure the normal operation of the thermostat 50.
  • the thermostat cover 60 provided in this way can ensure the installation reliability of the thermostat 50.
  • the structure of the cylinder head 100 can be made compact, and the layout of the cooling channel is reasonable and simple, which can facilitate the flow of the coolant in the cooling channel.
  • the cylinder head body 10 has an intake side 30 and an exhaust side 40, the intake side 30 is provided with an intake hole 31, and the exhaust side 40 is provided with an exhaust
  • the passage 41 and the second cooling passage 11 are arranged on the intake side 30.
  • Combustible gas can enter the cylinder from the intake port 31 provided on the intake side 30. After that, the piston in the cylinder will compress the gas, the spark plug will ignite the combustible gas, and the burned exhaust gas will get the exhaust channel from the exhaust side 40. 41 leads to the outside world.
  • the cooperation of the intake hole 31 and the exhaust passage 41 can prevent exhaust gas from being left in the cylinder, and can also ensure that the engine has a steady stream of power.
  • the second cooling passage 11 By arranging the second cooling passage 11 on the intake side 30, the space on the intake side 30 of the cylinder head body 10 can be reasonably used, and the second cooling passage 11 and the exhaust passage 41 can be separated, which can avoid exhaust.
  • the high-temperature exhaust gas in the passage 41 affects the second cooling passage 11, so that the cylinder head body 10 has a reasonable structure layout and a long service life.
  • the second cooling passage 11 is arranged below the intake hole 31, the second cooling passage 11 can warm up the engine, and the second cooling passage 11 is arranged below the intake hole 31, which can help The combustible gas that is about to enter the cylinder heats up, thereby preventing the combustible gas from being unable to be ignited in the cylinder. Therefore, the second cooling channel 11 is arranged below the intake hole 31 to ensure that the power of the engine will not be interrupted, and it can be normal for the engine. The operation is escorted, and the second cooling channel 11 arranged in this way can make reasonable use of the space below the air intake hole, which can make the layout of the air intake side 30 of the cylinder head body 10 reasonable.
  • the cylinder head body 10 is formed with a chain cavity 20 in which a chain can be arranged.
  • the second cooling channel 11 has a liquid outlet 111.
  • the liquid outlet 111 is adjacent to the chain cavity 20, and the installation space 13 is far away from the chain cavity. 20.
  • the liquid outlet 111 and the chain cavity 20 are provided at one end (left end) of the cylinder head body 10, and the installation space 13 is provided at the other end (right end) of the cylinder head body 10.
  • the thermostat 50 can be kept away from the chain cavity 20, which can prevent the thermostat 50 and the chain from being concentrated on one side of the cylinder head body 10, and can reduce the complexity of the structure of the cylinder head body 10 To a certain extent, the chain and the thermostat 50 can be prevented from interfering with each other, thereby ensuring the rationality of the structural arrangement of the cylinder head 100.
  • the thermostat 50 includes: a main valve 54 and an auxiliary valve 51, the main valve 54 and the auxiliary valve 51 are selectively opened, and the auxiliary valve 51 is used to open or close the first cooling passage 12 and the second cooling passage 12
  • the flow path between the two cooling channels 11, in other words, the auxiliary valve 51 is used to communicate and disconnect the first cooling channel 12 and the second cooling channel 11.
  • the main valve 54 of the thermostat 50 When the temperature of the coolant flowing in the first cooling channel 12 has not reached the initial opening temperature of the main valve 54 of the thermostat 50, the main valve 54 of the thermostat 50 is completely closed, the auxiliary valve 51 is completely opened, and the coolant only flows from the auxiliary valve 51 flows out, and then flows out from the liquid outlet 111 through the second cooling channel 11 of the cylinder head 100 and flows to the water pump. At this time, the coolant only flows in the second cooling channel 11, which is beneficial to the rapid warm-up of the engine.
  • the thermostat cover 60 is also formed with a channel interface 61, the channel interface 61 is connected to the radiator, and the main valve 54 is used to open or close the flow path between the first cooling channel 12 and the channel interface 61, in other words In other words, the main valve 54 is used to connect and disconnect the first cooling channel 12 and the channel interface 61.
  • the main valve 54 of the thermostat 50 When the temperature of the coolant reaches or exceeds the full opening temperature of the main valve 54 of the thermostat 50, the main valve 54 of the thermostat 50 is completely opened and the auxiliary valve 51 is completely closed, and the coolant only flows out from the main valve 54 of the thermostat 50 After that, the coolant flows to the water tank through the channel interface 61 of the thermostat cover 60, and the coolant flows to the water pump after being cooled by the water tank and the radiator. At this time, the coolant only flows in the channel interface 61, which is conducive to the rapid heat dissipation of the engine. , The passage interface 61 can reduce the thermal load of the cylinder head 100, thereby prolonging the service life of the cylinder head 100. By integrating the channel interface 61 on the thermostat cover 60, the degree of integration of the cylinder head 100 can be improved, and the number of parts of the cylinder head 100 can be reduced.
  • the main valve 54 of the thermostat 50 is opened but not fully opened, The auxiliary valve 51 of the thermostat 50 is not completely closed, and the coolant will pass through the main valve 54 of the thermostat 50 and the auxiliary valve 51 of the thermostat 50.
  • the coolant is in the channel interface 61 of the engine and the second Flow in the cooling channel 11.
  • the thermostat 50 also includes: a housing 52, the main valve 54 and the auxiliary valve 51 are arranged in the housing 52, the housing 52 is a water-leaking structure, the cooling liquid can continue through the housing 52 Flow down.
  • a mounting plate 53 is formed on the outer periphery of the housing 52, a groove 14 is formed in the mounting space 13, and the mounting plate 53 is accommodated in the groove 14.
  • the groove 14 is a strip groove formed by the cooperation of the mounting space 13 and the thermostat cover 60 14.
  • the mounting plate 53 can be placed in the groove 14, and the mounting plate 53 will not shake left and right in the groove 14.
  • the cooperation of the mounting plate 53 and the groove 14 can ensure the reliability of the thermostat 50, and further Ensure that the thermostat 50 can be firmly fixed on the installation space 13.
  • the setting of the housing 52 can ensure the continued circulation of the cooling liquid, and can also enhance the stability of the thermostat 50 in operation.
  • the thermostat cover 60 can be detachably installed in the installation space 13. When the thermostat cover 60 fails and needs to be repaired, it can be repaired only by removing the thermostat cover 60; when it is installed in the thermostat cover When the thermostat 50 in 60 fails, the maintenance personnel can remove the thermostat cover 60 first, and then take out the thermostat 50 to repair the thermostat 50.
  • the thermostat cover 60 is detachably installed on the installation space 13 to greatly increase the convenience of device maintenance and save maintenance time and cost.
  • the thermostat cover 60 and the installation space 13 are correspondingly provided with a plurality of installation holes for the fasteners to pass through.
  • the upper and lower ends of the installation space 13 and the thermostat cover 60 are both provided with installation holes, and the fasteners can be First, pass the installation hole of the thermostat cover 60 to the installation hole provided on the installation space 13 corresponding to the installation hole of the thermostat cover 60, and then install the thermostat cover 60 in the installation space 13.
  • the cooperation of the fasteners and the mounting holes can strengthen the connection between the thermostat cover 60 and the mounting space 13, and can increase the reliability of the structure of the cylinder head 100.
  • the mounting holes can be set to one or more.
  • the cooperation of the multiple mounting holes and the multiple fasteners can further enhance the stability of the connection between the thermostat cover and the mounting space 13.
  • the specific number of mounting holes can be determined according to the specific number of mounting holes. Examples to determine.
  • the engine according to the embodiment of the second aspect of the present disclosure includes the cylinder head 100 according to the embodiment of the first aspect of the present disclosure.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne une culasse (100) destinée à un moteur, la culasse (100) comprenant : un corps de culasse (10), qui est pourvu d'un premier canal de refroidissement (12) ménagé à l'intérieur du corps de culasse (10) et d'un second canal de refroidissement (11) ménagé à l'extérieur du corps de culasse (10), le premier canal de refroidissement (12) étant en communication avec le second canal de refroidissement (11), et un espace de montage (13) pourvu d'une ouverture étant ménagé au niveau de la position dans laquelle le premier canal de refroidissement est en communication avec le second canal de refroidissement; un thermostat (50), qui est disposé dans l'espace de montage (13); et un couvercle de thermostat (60), qui est monté au niveau de l'ouverture. Ainsi, le thermostat (50), le premier canal de refroidissement (12) et le second canal de refroidissement (11) correspondent au couvercle de thermostat (60), et le second canal de refroidissement (11) peut être intégré sur la culasse (100), de telle sorte que la culasse (100) a une structure compacte et est raisonnable dans la disposition du canal de refroidissement et facilite l'écoulement d'un liquide de refroidissement dans les canaux de refroidissement.
PCT/CN2020/135871 2019-12-13 2020-12-11 Culasse pour moteur et moteur comprenant celle-ci WO2021115448A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201922262605 2019-12-13
CN201922262605.9 2019-12-13

Publications (1)

Publication Number Publication Date
WO2021115448A1 true WO2021115448A1 (fr) 2021-06-17

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PCT/CN2020/135871 WO2021115448A1 (fr) 2019-12-13 2020-12-11 Culasse pour moteur et moteur comprenant celle-ci

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CN (1) CN212985386U (fr)
WO (1) WO2021115448A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS601358A (ja) * 1983-06-20 1985-01-07 Yanmar Diesel Engine Co Ltd 垂直軸型内燃機関のシリンダヘツド
JPH10212946A (ja) * 1997-01-29 1998-08-11 Daihatsu Motor Co Ltd 内燃機関における冷却装置
GB2335483A (en) * 1998-03-19 1999-09-22 Ford Global Tech Inc Method and apparatus for cooling an engine using exhaust gas
US20020020366A1 (en) * 2000-08-11 2002-02-21 Honda Giken Kogyo Kabushiki Kaisha Water-cooled outboard marine engine
EP2110536A1 (fr) * 2008-02-15 2009-10-21 Peugeot Citroën Automobiles S.A. Architecture de collecteur d'échappement intégré à la culasse d'un moteur de véhicule automobile
CN206845302U (zh) * 2017-06-21 2018-01-05 浙江春风动力股份有限公司 发动机及其缸盖组件
CN207178048U (zh) * 2017-09-05 2018-04-03 广西玉柴机器股份有限公司 一种柴油机气缸盖

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS601358A (ja) * 1983-06-20 1985-01-07 Yanmar Diesel Engine Co Ltd 垂直軸型内燃機関のシリンダヘツド
JPH10212946A (ja) * 1997-01-29 1998-08-11 Daihatsu Motor Co Ltd 内燃機関における冷却装置
GB2335483A (en) * 1998-03-19 1999-09-22 Ford Global Tech Inc Method and apparatus for cooling an engine using exhaust gas
US20020020366A1 (en) * 2000-08-11 2002-02-21 Honda Giken Kogyo Kabushiki Kaisha Water-cooled outboard marine engine
EP2110536A1 (fr) * 2008-02-15 2009-10-21 Peugeot Citroën Automobiles S.A. Architecture de collecteur d'échappement intégré à la culasse d'un moteur de véhicule automobile
CN206845302U (zh) * 2017-06-21 2018-01-05 浙江春风动力股份有限公司 发动机及其缸盖组件
CN207178048U (zh) * 2017-09-05 2018-04-03 广西玉柴机器股份有限公司 一种柴油机气缸盖

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