CN111878213A - High-efficient thoughtlessly moves engine cooling system - Google Patents

High-efficient thoughtlessly moves engine cooling system Download PDF

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Publication number
CN111878213A
CN111878213A CN202010718374.2A CN202010718374A CN111878213A CN 111878213 A CN111878213 A CN 111878213A CN 202010718374 A CN202010718374 A CN 202010718374A CN 111878213 A CN111878213 A CN 111878213A
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CN
China
Prior art keywords
water
engine
outlet
communicated
way valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010718374.2A
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Chinese (zh)
Inventor
冉景旭
梁德浦
毛龙归
刘益军
叶双超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangxi Yuchai Machinery Co Ltd
Original Assignee
Guangxi Yuchai Machinery Co Ltd
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 Guangxi Yuchai Machinery Co Ltd filed Critical Guangxi Yuchai Machinery Co Ltd
Priority to CN202010718374.2A priority Critical patent/CN111878213A/en
Publication of CN111878213A publication Critical patent/CN111878213A/en
Pending legal-status Critical Current

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    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/002—Cooling
    • 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
    • F01P3/18—Arrangements or mounting of liquid-to-air heat-exchangers
    • 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
    • F01P3/20—Cooling circuits not specific to a single part of engine or machine
    • 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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F01P5/12—Pump-driving arrangements
    • 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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • 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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F01P2005/105—Using two or more pumps
    • 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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F01P5/12—Pump-driving arrangements
    • F01P2005/125—Driving auxiliary pumps electrically
    • 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
    • F01P2007/143—Controlling of coolant flow the coolant being liquid using restrictions
    • 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
    • F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

The invention provides a high-efficiency hybrid engine cooling system, comprising: the engine comprises a mechanical pump, a first one-way valve, a cylinder cover water jacket, a machine body water jacket, a supercharger cooling water channel, an EGR cooler, a temperature regulator, an engine oil cooler, a radiator, an electronic water pump and a second one-way valve; the inlet of a first one-way valve at the water outlet of the mechanical pump is communicated through a pipeline, the outlet of the first one-way valve is respectively communicated with the water inlet of a cylinder cover water jacket, the water inlet of an engine oil cooler and the outlet of a second one-way valve through pipelines, and the water outlet of the cylinder cover water jacket is respectively communicated with the water inlet of a supercharger cooling water channel and the water inlet of an engine body water jacket through pipelines; the high-efficiency hybrid engine cooling system provided by the invention adopts the combination of the mechanical pump and the electronic water pump, can still run when the engine is stopped, and can still effectively cool the engine body, the cylinder cover, the supercharger and the EGR cooler, so that the engine cannot be accelerated and damaged by waste heat, and the running reliability of the engine is maintained.

Description

High-efficient thoughtlessly moves engine cooling system
Technical Field
The invention belongs to the technical field of engine cooling, and particularly relates to a high-efficiency hybrid engine cooling system.
Background
The cooling system is an important component of the engine. During engine operation, the parts in contact with the hot gases or exhaust gases are heated strongly, requiring cooling systems to dissipate the excess heat from these parts, which can have various undesirable consequences, such as: deterioration of the lubricating oil and damage of a normal oil film; the heated parts expand to destroy the normal clearance of the kinematic pair; the part is reduced in thermal mechanical property and even fails, and the like. In addition, the cooling cannot be excessive, otherwise, poor combustion and increased emission can be caused, and the fuel economy is reduced; the viscosity of the engine oil is increased, the friction loss of a kinematic pair is aggravated, the engine works roughly, the power of the engine is reduced, and the service life is shortened.
For example, chinese patent publication No. CN109910592A discloses a cooling system for integrated heat dissipation of a hybrid vehicle and a control method thereof, which comprises a high-temperature cooling circuit, a low-temperature cooling circuit and a control circuit, the high-temperature cooling loop comprises a high-temperature radiator, a first electronic water pump, an engine, a gearbox oil heat exchanger and a temperature-saving valve, one end of the high-temperature radiator is connected with an inlet of a first electronic water pump, an outlet of the first electronic water pump is connected with an engine, the gearbox oil heat exchanger is connected with a first interface of the thermostatic valve, the other end of the high-temperature heat exchanger is connected with a second interface of the thermostatic valve, the third interface of the temperature-saving valve is connected with the inlet of the first electronic water pump, the front end of the high-temperature radiator is provided with a cooling fan, the low-temperature cooling loop comprises a low-temperature radiator, a second electronic water pump, a battery heat exchanger, an air-conditioning water-cooled condenser, an inter-cooling water-cooled heat exchanger and a motor heat exchanger.
Chinese invention patent CN 110067633A;
chinese invention patent CN 109209606A;
chinese invention patent CN 108343500A;
chinese invention patent CN 108930587A;
as described above, the cooling system in the related art does not consider the connection of the components such as the supercharger and the EGR cooler to the large and small cycles, and therefore, the cooling efficiency is low, and the problem of cooling after the engine is stopped cannot be solved.
Disclosure of Invention
The invention aims to provide a high-efficiency hybrid engine cooling system, which aims to solve the problems of low cooling efficiency and cooling after an engine is stopped in the prior art.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
the invention provides a high-efficiency hybrid engine cooling system, which comprises:
the engine comprises a mechanical pump, a first one-way valve, a cylinder cover water jacket, a machine body water jacket, a supercharger cooling water channel, an EGR cooler, a temperature regulator, an engine oil cooler, a radiator, an electronic water pump and a second one-way valve;
the inlet of a first one-way valve at the water outlet of the mechanical pump is communicated through a pipeline, the outlet of the first one-way valve is respectively communicated with the water inlet of a cylinder cover water jacket, the water inlet of an engine oil cooler and the outlet of a second one-way valve through pipelines, and the water outlet of the cylinder cover water jacket is respectively communicated with the water inlet of a supercharger cooling water channel and the water inlet of an engine body water jacket through pipelines;
the water outlet of the supercharger cooling water channel and the water outlet of the engine body water jacket are communicated with the water inlet of the EGR cooler through pipelines; the water outlet of the EGR cooler, the water outlet of the engine oil cooler and the water inlet of the electronic water pump are communicated with the water inlet of the thermostat through pipelines, and the water outlet of the electronic water pump is communicated with the inlet of the second one-way valve through a pipeline;
the small circulation water outlet of the temperature regulator is communicated with the water inlet of the mechanical pump through a pipeline, the large circulation water outlet of the temperature regulator is communicated with the water inlet of the radiator through a pipeline, and the water outlet of the radiator is also communicated with the water inlet of the mechanical pump through a pipeline.
Preferably, the thermostat is a corrugated tube thermostat or a wax thermostat.
Preferably, a fan is further disposed on the heat sink.
The invention has the advantages that:
the high-efficiency hybrid engine cooling system provided by the invention designs a large and small circulating cooling system structure, has high cooling efficiency, adopts the combination of the mechanical pump and the electronic water pump, can still run when the engine is stopped, can still effectively cool the engine body, the cylinder cover, the supercharger and the EGR cooler, can not be accelerated and damaged by waste heat, and keeps the running reliability of the engine.
Drawings
Fig. 1 is a block diagram illustrating a cooling system for a high efficiency hybrid engine according to the present invention.
FIG. 2 is a schematic diagram of a cooling circuit of the present invention during operation of the mechanical pump;
fig. 3 is a schematic structural diagram of a cooling circuit of the electronic water pump according to the present invention.
In the figure, 101 denotes a mechanical pump, 102 denotes a first check valve, 103 denotes a cylinder head water jacket, 104 denotes a supercharger cooling water passage, 105 denotes a body water jacket, 106 denotes an EGR cooler, 107 denotes an oil cooler, 108 denotes a thermostat, 109 denotes a radiator, 110 denotes an electric water pump, and 111 denotes a second check valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In an embodiment of the present invention, there is provided a high efficiency hybrid engine cooling system, as shown in fig. 1, comprising: a mechanical pump 101 for conveying cooling water, a first check valve 102 for conveying the cooling water in a single direction, a cylinder head water jacket 103 for cooling a cylinder head of an engine, a body water jacket 105 for cooling an engine body, a supercharger cooling water channel 104 for cooling a supercharger, an EGR cooler 106 for cooling EGR, a thermostat 108 for controlling small circulation or large circulation according to the temperature of the cooling water, an oil cooler 107 for cooling engine lubricating oil, a radiator 109 for providing cooling water for heat dissipation, an electronic water pump 110 for continuing conveying the cooling water after the engine is stopped, and a second check valve 111 for conveying the cooling water in a single direction;
the water outlet of the mechanical pump 101 is communicated with the inlet of the first check valve 102 through a pipeline, the outlet of the first check valve 102 is respectively communicated with the water inlet of the cylinder cover water jacket 103, the water inlet of the oil cooler 107 and the outlet of the second check valve 111 through pipelines, and cooling water is input into the cylinder cover water jacket 103 and the oil cooler 107; the water outlet of the cylinder cover water jacket 103 is respectively communicated with the water inlet of the supercharger cooling water channel 104 and the water inlet of the engine body water jacket 105 through pipelines, and cooling water flows into the supercharger cooling water channel 104 and the engine body water jacket 105 through the cylinder cover water jacket 103; the water outlet of the supercharger cooling water channel 104 and the water outlet of the engine body water jacket 105 are both communicated with the water inlet of the EGR cooler 106 through pipelines, and cooling water is collected into the EGR cooler 106 from the supercharger cooling water channel 104 and the engine body water jacket 105; the water outlet of the EGR cooler 106, the water outlet of the engine oil cooler 107 and the water inlet of the electronic water pump 110 are communicated with the water inlet of the thermostat 108 through pipelines, and cooling water is gathered into the thermostat 108 from the EGR cooler 106 and the engine oil cooler 107 to enter circulation; the water outlet of the electronic water pump 110 is communicated with the inlet of the second one-way valve 111 through a pipeline;
the small circulation water outlet of the temperature regulator 108 is communicated with the water inlet of the mechanical pump 101 through a pipeline, when the temperature of cooling water is at the initial opening threshold of the temperature regulator 108, the cooling water flows back to the mechanical pump 101 through the temperature regulator 108 to realize small circulation after being output by the mechanical pump 101, the large circulation water outlet of the temperature regulator 108 is communicated with the water inlet of the radiator 109 through a pipeline, when the temperature of the cooling water is at the full opening threshold of the temperature regulator 108, the cooling water in the temperature regulator 108 flows through the water inlet of the radiator 109, the water outlet of the radiator 109 is also communicated with the water inlet of the mechanical pump 101 through a pipeline, the cooling water flows back to the mechanical pump 101 through the radiator 109 after being output by the mechanical pump 101 to realize large circulation, and the;
when the engine works, the electronic water pump 110 is not started, the mechanical pump 101 is used for conveying cooling water required by circulation, and a cooling loop of the electronic water pump is shown in FIG. 2; after the engine is stopped, the electronic water pump 110 can be inserted, the working state of the electronic water pump 110 is independent of the engine, a cooling loop of the electronic water pump 110 is shown in fig. 3, and the electronic water pump 110, the second check valve 111 and the engine oil cooler form a small circulation; the electronic water pump 110, the second one-way valve 111, the cylinder head water jacket 103, the engine body water jacket 105, the supercharger cooling water channel 104 and the EGR cooler 106 form a large circulation; therefore, no matter whether the engine is started or stopped, the electronic water pump 110 can be in a working state and still can operate when the engine is stopped, the engine body, the cylinder cover, the supercharger and the EGR cooler can still be effectively cooled, the engine body, the cylinder cover, the supercharger and the EGR cooler cannot be accelerated and damaged due to waste heat, and the operation reliability of the engine is kept.
In one embodiment, the thermostat 108 is a bellows thermostat or a wax thermostat.
In some embodiments, a fan is also disposed on the heat sink 109.
Reference in the specification to "some embodiments," "one embodiment," or "an embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in some embodiments," "in one embodiment," or "in an embodiment," or the like, in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Thus, a particular feature, structure, or characteristic illustrated or described in connection with one embodiment may be combined, in whole or in part, with a feature, structure, or characteristic of one or more other embodiments without limitation, as long as the combination is not logical or operational. Additionally, the various elements of the drawings of the present application are merely schematic illustrations and are not drawn to scale.
Having thus described several aspects of at least one embodiment of this invention, it is to be appreciated various alterations, modifications, and improvements will readily occur to those skilled in the art. Such alterations, modifications, and improvements are intended to be within the spirit and scope of the invention.

Claims (3)

1. A high efficiency hybrid engine cooling system, comprising:
the engine comprises a mechanical pump, a first one-way valve, a cylinder cover water jacket, a machine body water jacket, a supercharger cooling water channel, an EGR cooler, a temperature regulator, an engine oil cooler, a radiator, an electronic water pump and a second one-way valve;
the inlet of a first one-way valve at the water outlet of the mechanical pump is communicated through a pipeline, the outlet of the first one-way valve is respectively communicated with the water inlet of a cylinder cover water jacket, the water inlet of an engine oil cooler and the outlet of a second one-way valve through pipelines, and the water outlet of the cylinder cover water jacket is respectively communicated with the water inlet of a supercharger cooling water channel and the water inlet of an engine body water jacket through pipelines;
the water outlet of the supercharger cooling water channel and the water outlet of the engine body water jacket are communicated with the water inlet of the EGR cooler through pipelines; the water outlet of the EGR cooler, the water outlet of the engine oil cooler and the water inlet of the electronic water pump are communicated with the water inlet of the thermostat through pipelines, and the water outlet of the electronic water pump is communicated with the inlet of the second one-way valve through a pipeline;
the small circulation water outlet of the temperature regulator is communicated with the water inlet of the mechanical pump through a pipeline, the large circulation water outlet of the temperature regulator is communicated with the water inlet of the radiator through a pipeline, and the water outlet of the radiator is also communicated with the water inlet of the mechanical pump through a pipeline.
2. The high efficiency hybrid engine cooling system of claim 1, wherein: the temperature regulator is a corrugated pipe temperature regulator or a wax temperature regulator.
3. The high efficiency hybrid engine cooling system according to claim 1 or 2, wherein: a fan is also disposed on the heat sink.
CN202010718374.2A 2020-07-23 2020-07-23 High-efficient thoughtlessly moves engine cooling system Pending CN111878213A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN202010718374.2A CN111878213A (en) 2020-07-23 2020-07-23 High-efficient thoughtlessly moves engine cooling system

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CN111878213A true CN111878213A (en) 2020-11-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114046200A (en) * 2021-11-09 2022-02-15 上海柴油机股份有限公司 Anti-overheating cooling system of hybrid power engine and control method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160258341A1 (en) * 2015-03-02 2016-09-08 Hyundai Motor Company Engine cooling system having thermostat
CN106437995A (en) * 2016-10-26 2017-02-22 奇瑞汽车股份有限公司 Automobile supercharged engine cooling system and control method thereof
CN212671920U (en) * 2020-07-23 2021-03-09 广西玉柴机器股份有限公司 High-efficient thoughtlessly moves engine cooling system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160258341A1 (en) * 2015-03-02 2016-09-08 Hyundai Motor Company Engine cooling system having thermostat
CN106437995A (en) * 2016-10-26 2017-02-22 奇瑞汽车股份有限公司 Automobile supercharged engine cooling system and control method thereof
CN212671920U (en) * 2020-07-23 2021-03-09 广西玉柴机器股份有限公司 High-efficient thoughtlessly moves engine cooling system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114046200A (en) * 2021-11-09 2022-02-15 上海柴油机股份有限公司 Anti-overheating cooling system of hybrid power engine and control method thereof
CN114046200B (en) * 2021-11-09 2023-02-17 上海新动力汽车科技股份有限公司 Anti-overheating cooling system of hybrid power engine and control method thereof

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