CN113356991A - Piston cooling system with pressure detection function and filtering function - Google Patents

Piston cooling system with pressure detection function and filtering function Download PDF

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Publication number
CN113356991A
CN113356991A CN202010142102.2A CN202010142102A CN113356991A CN 113356991 A CN113356991 A CN 113356991A CN 202010142102 A CN202010142102 A CN 202010142102A CN 113356991 A CN113356991 A CN 113356991A
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CN
China
Prior art keywords
piston cooling
piston
lubricating oil
cooling nozzle
control valve
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CN202010142102.2A
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Chinese (zh)
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CN113356991B (en
Inventor
王宏
李鹏
倪松伟
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FAW Jiefang Automotive Co Ltd
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FAW Jiefang Automotive Co Ltd
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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
    • F01P3/06—Arrangements for cooling pistons
    • F01P3/08—Cooling of piston exterior only, e.g. by jets
    • 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
    • F01M1/00—Pressure lubrication
    • F01M1/16—Controlling lubricant pressure or quantity
    • 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
    • F01M1/00—Pressure lubrication
    • F01M1/18—Indicating or safety devices
    • F01M1/20—Indicating or safety devices concerning lubricant pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means

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

Abstract

The invention discloses a piston cooling system with a filtering function and capable of detecting pressure, belongs to the technical field of internal combustion engine control, and aims to solve the problems that a piston cooling nozzle is directly arranged on an oil duct of an engine cylinder block at present and a piston is cooled by spraying lubricating oil.

Description

Piston cooling system with pressure detection function and filtering function
Technical Field
The invention belongs to the technical field of internal combustion engine control.
Background
With the increasing strengthening degree of the diesel engine, the power per liter and the explosion pressure of the diesel engine are increased, the piston reciprocates in the cylinder at a high speed, the heat load of the piston is increased, and therefore lubricating oil needs to be injected to cool the inner cavity of the piston.
In order to meet the requirement of piston cooling, a piston cooling nozzle is directly arranged on an oil passage of an engine cylinder block, and lubricating oil is injected to cool a piston. The valve body of the piston cooling nozzle and the space of the oil spraying pipe are narrow, if the lubricating oil contains foreign matters and enters the oil spraying pipe, the oil spraying pipe is blocked, so that the oil spraying amount is reduced, when the blockage is serious, the oil spraying pipe does not spray oil, the piston cannot be cooled, carbon deposits in the head part of the piston and an annular groove are increased, the piston can be seriously expanded due to excessive heat, the cylinder is pulled, and the engine fails.
The invention provides a method and a device for controlling a piston cooling system, which are disclosed by patent document 1(CN 105952520A), and solve the problem that unreasonable injection is caused by injection of a mechanical piston nozzle under the working condition that oil injection is not needed in the prior art; the control of the piston cooling system is more accurate, so that the emission and the oil consumption are saved; the engine warming speed is improved, the friction loss of the engine under the working conditions of high speed and low load is reduced, and the idle piston knocking noise of the engine is reduced.
Patent document 2(CN204677273U) the utility model discloses an automatically controlled formula piston cooling device locates among the automobile engine lubricating system, the utility model discloses can provide appropriate amount lubricating oil and carry out the piston cooling according to the actual cooling demand of piston under each operating mode during the engine operation, the oil pressure of accurate control through piston cooling nozzle reduces the redundant waste of unnecessary simultaneously, and can prolong piston cooling device working life.
Disclosure of Invention
The invention aims to provide a piston cooling system with a filtering function and capable of detecting pressure, which comprises a pressure control valve 1, a filter screen 2 and a piston cooling nozzle 3;
the oil passage passing through the pressure control valve 1 is divided into two branches, one branch is directly connected to the piston cooling nozzle 3, and the other branch is connected to the piston cooling nozzle 3 after passing through the filter screen 2;
the pressure control valve 1 is used to implement the following steps:
1. when the signal is lower than the set value (preferably but not limited to 3bar), the lubricating oil directly flows to the piston cooling nozzle 3 to cool the piston without passing through the filter screen 2;
2. when the signal is higher than the set value (preferably but not limited to 3bar), the lubricating oil flows through the filter screen 2, the lubricating oil is filtered, impurity particles are filtered, the lubricating oil flows to the piston cooling nozzle 3, and the piston is cooled;
3. and when the pressure control valve is in fault, outputting a fault code.
The invention has the beneficial effects that:
according to the invention, the pressure control valve and the filter screen device are additionally arranged on the main oil duct, and by monitoring the pressure of the lubricating oil in the main oil duct, the mode of filtering the lubricating oil is started when the pressure of the lubricating oil is greater than the limit value, and the mode of bypassing the lubricating oil is started when the pressure of the lubricating oil is less than the limit value, so that the phenomenon that impurities in the lubricating oil block an oil injection pipe is avoided, and meanwhile, the sufficient oil injection flow is ensured to cool the piston.
Drawings
FIG. 1 is a schematic diagram of a piston cooling system with filtering function capable of detecting pressure
FIG. 2 is a flow chart of a piston cooling system with filtering function capable of detecting pressure
Detailed Description
The technical scheme of the invention is explained in detail in the following with the accompanying drawings.
As shown in fig. 1, a piston cooling system with a filtering function, which can detect pressure, comprises a pressure control valve 1, a filter screen 2 and a piston cooling nozzle 3; the oil passage passing through the pressure control valve 1 is divided into two branches, one branch is directly connected to the piston cooling nozzle 3, and the other branch is connected to the piston cooling nozzle 3 after passing through the filter screen 2;
the pressure control valve 1 mainly has the functions of monitoring the pressure of lubricating oil in the main oil gallery, determining the flow direction of the lubricating oil in the main oil gallery according to the pressure of the lubricating oil, and ensuring that the lubricating oil with enough flow rate flows into the piston cooling nozzle;
the filter screen 2 mainly has the functions of filtering impurity particles in the lubricating oil, and the filtered lubricating oil enters the piston cooling nozzle 3;
the pressure control valve 1 mainly functions to determine the flow direction of lubricating oil in the main oil gallery, and controls the pressure control valve 1 to work according to the following logic so as to ensure that the pressure and the flow of the lubricating oil passing through the piston cooling nozzle are within a reasonable range:
1. when the signal is lower than the set value (preferably but not limited to 3bar), the lubricating oil directly flows to the piston cooling nozzle 3 to cool the piston without passing through the filter screen 2;
2. when the signal is higher than the set value (preferably but not limited to 3bar), the lubricating oil flows through the filter screen 2, the lubricating oil is filtered, impurity particles are filtered, the lubricating oil flows to the piston cooling nozzle 3, and the piston is cooled;
3. and when the pressure control valve is in fault, outputting a fault code.
The pressure control valve and the filter screen device are additionally arranged on the main oil duct, the mode of filtering lubricating oil is started when the pressure of the lubricating oil is greater than the limit value and the mode of bypassing the lubricating oil is started when the pressure of the lubricating oil is less than the limit value by monitoring the pressure of the lubricating oil in the main oil duct, so that the phenomenon that impurities in the lubricating oil block an oil injection pipe is avoided, and meanwhile, the enough oil injection flow is ensured to cool the piston.

Claims (2)

1. A piston cooling system with a filtering function and capable of detecting pressure comprises a pressure control valve (1), a filter screen (2) and a piston cooling nozzle (3);
the oil passage passing through the pressure control valve (1) is divided into two branches, one branch is directly connected to the piston cooling nozzle (3), and the other branch is connected to the piston cooling nozzle (3) after passing through the filter screen (2);
the pressure control valve (1) is used for realizing the following steps:
1) when the signal is lower than the set value, the lubricating oil directly flows to the piston cooling nozzle (3) without passing through the filter screen (2) to cool the piston;
2) when the signal is higher than the set value, the lubricating oil flows through the filter screen (2), the lubricating oil is filtered to remove impurity particles, and the lubricating oil flows to the piston cooling nozzle (3) to cool the piston;
3) and when the pressure control valve (1) is in fault, outputting a fault code.
2. The piston cooling system with a filtering function capable of detecting pressure according to claim 1, wherein the set value is 3 bar.
CN202010142102.2A 2020-03-04 2020-03-04 Piston cooling system with pressure detection function Active CN113356991B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010142102.2A CN113356991B (en) 2020-03-04 2020-03-04 Piston cooling system with pressure detection function

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Application Number Priority Date Filing Date Title
CN202010142102.2A CN113356991B (en) 2020-03-04 2020-03-04 Piston cooling system with pressure detection function

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CN113356991A true CN113356991A (en) 2021-09-07
CN113356991B CN113356991B (en) 2022-07-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114592963A (en) * 2022-03-17 2022-06-07 潍柴动力股份有限公司 Piston cooling system monitoring method and device and engine

Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114571A (en) * 1975-10-16 1978-09-19 Max Ruf Means for controlling the oil cooling of the piston of a piston engine
JPH04318215A (en) * 1991-04-16 1992-11-09 Mitsubishi Motors Corp Oil-cooled multiple cylinder engine
US5483928A (en) * 1993-07-27 1996-01-16 Klockner-Humboldt-Duetz Ag Liquid cooled internal combustion engine
JP2003343350A (en) * 2002-05-24 2003-12-03 Toyota Motor Corp Piston cooling apparatus
JP2008280969A (en) * 2007-05-14 2008-11-20 Nippon Soken Inc Oil supply device
CN101871381A (en) * 2010-06-02 2010-10-27 奇瑞汽车股份有限公司 Electronically-controlled piston cooling nozzle structure
CN101963079A (en) * 2010-10-31 2011-02-02 无锡开普动力有限公司 Engine oil filter component for diesel engine
CN102352786A (en) * 2011-06-30 2012-02-15 福建科雷诺机械有限公司 Water sucking type pressurized ultramicro hydraulic oil filter controller system
US20140091161A1 (en) * 2012-09-29 2014-04-03 Toyota Jidosha Kabushiki Kaisha Piston cooling jet
CN204082252U (en) * 2014-09-22 2015-01-07 江铃汽车股份有限公司 A kind of engine lubrication system structure
CN204126745U (en) * 2014-08-11 2015-01-28 上汽通用五菱汽车股份有限公司 A kind of internal combustion engine cylinders
CN105888773A (en) * 2014-10-31 2016-08-24 卞永平 Crankcase pressure reducing and piston crankshaft lubricating and cooling device and method
CN105952520A (en) * 2016-06-22 2016-09-21 上汽通用汽车有限公司 Method and device for controlling piston cooling system
EP3150821A1 (en) * 2015-09-29 2017-04-05 FPT Motorenforschung AG Internal combustion engine provided of a piston cooling system
CN206495703U (en) * 2017-02-14 2017-09-15 黄冈职业技术学院 Environment-friendly and energy-efficient oil pressure of automobile engine presetter device
CN107208632A (en) * 2015-02-06 2017-09-26 日立汽车系统株式会社 Variable displacement pump
CN207064087U (en) * 2017-07-01 2018-03-02 重庆长安汽车股份有限公司 A kind of engine cylinder-body oil duct structure
CN109723566A (en) * 2019-02-28 2019-05-07 一汽解放汽车有限公司 A kind of link assembly reducing piston heat load
WO2020001908A1 (en) * 2018-06-25 2020-01-02 Vhit S.P.A. Societa Unipersonal Multi-purpose hydraulic system

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114571A (en) * 1975-10-16 1978-09-19 Max Ruf Means for controlling the oil cooling of the piston of a piston engine
JPH04318215A (en) * 1991-04-16 1992-11-09 Mitsubishi Motors Corp Oil-cooled multiple cylinder engine
US5483928A (en) * 1993-07-27 1996-01-16 Klockner-Humboldt-Duetz Ag Liquid cooled internal combustion engine
JP2003343350A (en) * 2002-05-24 2003-12-03 Toyota Motor Corp Piston cooling apparatus
JP2008280969A (en) * 2007-05-14 2008-11-20 Nippon Soken Inc Oil supply device
CN101871381A (en) * 2010-06-02 2010-10-27 奇瑞汽车股份有限公司 Electronically-controlled piston cooling nozzle structure
CN101963079A (en) * 2010-10-31 2011-02-02 无锡开普动力有限公司 Engine oil filter component for diesel engine
CN102352786A (en) * 2011-06-30 2012-02-15 福建科雷诺机械有限公司 Water sucking type pressurized ultramicro hydraulic oil filter controller system
US20140091161A1 (en) * 2012-09-29 2014-04-03 Toyota Jidosha Kabushiki Kaisha Piston cooling jet
CN204126745U (en) * 2014-08-11 2015-01-28 上汽通用五菱汽车股份有限公司 A kind of internal combustion engine cylinders
CN204082252U (en) * 2014-09-22 2015-01-07 江铃汽车股份有限公司 A kind of engine lubrication system structure
CN105888773A (en) * 2014-10-31 2016-08-24 卞永平 Crankcase pressure reducing and piston crankshaft lubricating and cooling device and method
CN107208632A (en) * 2015-02-06 2017-09-26 日立汽车系统株式会社 Variable displacement pump
EP3150821A1 (en) * 2015-09-29 2017-04-05 FPT Motorenforschung AG Internal combustion engine provided of a piston cooling system
CN105952520A (en) * 2016-06-22 2016-09-21 上汽通用汽车有限公司 Method and device for controlling piston cooling system
CN206495703U (en) * 2017-02-14 2017-09-15 黄冈职业技术学院 Environment-friendly and energy-efficient oil pressure of automobile engine presetter device
CN207064087U (en) * 2017-07-01 2018-03-02 重庆长安汽车股份有限公司 A kind of engine cylinder-body oil duct structure
WO2020001908A1 (en) * 2018-06-25 2020-01-02 Vhit S.P.A. Societa Unipersonal Multi-purpose hydraulic system
CN109723566A (en) * 2019-02-28 2019-05-07 一汽解放汽车有限公司 A kind of link assembly reducing piston heat load

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
霍文浩: "超超临界汽轮机高压缸旁路冷却系统冷却特性研究", 《西安交通大学学报》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114592963A (en) * 2022-03-17 2022-06-07 潍柴动力股份有限公司 Piston cooling system monitoring method and device and engine
CN114592963B (en) * 2022-03-17 2023-05-23 潍柴动力股份有限公司 Piston cooling system monitoring method and device and engine

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