CN110761885A - Method and device for changing cooling flow of engine piston by random oil temperature - Google Patents
Method and device for changing cooling flow of engine piston by random oil temperature Download PDFInfo
- Publication number
- CN110761885A CN110761885A CN201911217375.2A CN201911217375A CN110761885A CN 110761885 A CN110761885 A CN 110761885A CN 201911217375 A CN201911217375 A CN 201911217375A CN 110761885 A CN110761885 A CN 110761885A
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- flow
- temperature
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- 238000001816 cooling Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims description 8
- 239000003921 oil Substances 0.000 claims abstract description 118
- 230000007246 mechanism Effects 0.000 claims abstract description 112
- 239000002826 coolant Substances 0.000 claims abstract description 59
- 238000002347 injection Methods 0.000 claims abstract description 36
- 239000007924 injection Substances 0.000 claims abstract description 36
- 239000010705 motor oil Substances 0.000 claims abstract description 32
- 230000001105 regulatory effect Effects 0.000 claims abstract description 16
- 230000008859 change Effects 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims description 20
- 230000009471 action Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 description 8
- 239000001993 wax Substances 0.000 description 5
- 239000010721 machine oil Substances 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- F01P3/06—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
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/14—Indicating devices; Other safety devices
- F01P11/16—Indicating devices; Other safety devices concerning coolant temperature
-
- 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
- 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
- F01P2003/006—Liquid cooling the liquid being oil
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention is suitable for the technical field of engine cooling, and provides a piston cooling device, which comprises: the oil injection mechanism is arranged opposite to the cylinder and is used for injecting a cooling medium to the piston; the output end of the flow regulating mechanism is communicated with the oil injection mechanism and is used for movably limiting the flow of the cooling medium which is conveyed to the oil injection mechanism from the flow regulating mechanism; and the output end of the adjusting driving mechanism is connected and driven with the flow adjusting mechanism and used for sensing temperature and driving the flow adjusting mechanism to adjust the flow of the cooling medium. According to the invention, the flow of the cooling medium entering the oil injection mechanism through the flow regulating mechanism is regulated according to the temperature change, so that the flow of the engine oil can be saved, the bearings and other parts in the engine can be more fully lubricated, the piston can be better heated or run at a good temperature, the service life of the piston is prolonged, the working reliability is improved, and the stability of the engine during cold start or low-load running is effectively ensured.
Description
Technical Field
The invention belongs to the technical field of engine cooling, and particularly relates to a method and a device for changing the cooling flow of an engine piston by random oil temperature.
Background
With the increasing development of social economy, the automobile engine gradually tends to be high-speed, low-carbon and supercharged, and how to develop engine parts resistant to high mechanical load, high thermal load and high explosion pressure becomes an important problem in front. As a piston of an engine heart, the top of the piston is periodically heated by high-temperature gas while bearing huge mechanical load, and faults such as cylinder pulling, burning or cylinder explosion easily occur. Therefore, improvement of the working condition of the piston, particularly the heat receiving condition, is a necessary step for improving the reliability thereof. For a naturally aspirated engine, the heat absorbed by the piston is transferred through a piston ring, a piston skirt or splashed engine oil cooling of a connecting rod; however, for a supercharged and direct injection type, the heat load of the piston is higher, the time under high temperature and high pressure is longer, and the reliability of the work of the piston can be better ensured only by forcibly cooling the bottom of the piston. The forced cooling of the piston can be realized by adopting engine oil according to the cooling mode of the combustion chamber, and the adding of the piston cooling nozzle is the most widely applied one of the forced cooling methods of the piston.
The opening, closing and flow control of the present piston cooling nozzle is directly related to the pressure of the main oil gallery of the internal combustion engine. Adopt the spring pretightning force to make the oil feed port of steel ball closed nozzle cavity promptly, when the machine oil pressure in the main oil duct is greater than the spring pretightning force, the spring is compressed by the steel ball, and machine oil flows into the nozzle cavity, sprays the piston inside through piston cooling nozzle, because the temperature of piston is higher than the machine oil temperature far away to the effect of cooling the piston has been played.
However, in the control method of the above configuration, the pressure of the main gallery is mainly related to the rotation speed, and the higher the rotation speed, the higher the oil pressure of the main gallery, and the larger the flow rate of the piston cooling nozzle. However, when the engine is started, especially in winter or during low-speed and low-load operation, the starting performance and the low-speed operation stability are relatively important, the working temperature of the piston is relatively low, the reliability is high, if the cooling nozzle is opened to work, most of oil flow is consumed, the establishment of system lubrication at the initial starting stage of the engine is slowed down, the piston and the cylinder wall are supercooled, the initial emission and oil consumption of the whole engine are not facilitated, and the low-load operation stability is also reduced.
Disclosure of Invention
The embodiment of the invention aims to provide a piston cooling device, and aims to solve the problems that engine oil waste is caused by controlling the opening of an oil nozzle through pressure, the supercooling of a piston and a cylinder wall is not beneficial to the initial discharge and oil consumption of a whole machine, and the stability of low-load operation is reduced.
The embodiment of the invention is realized in such a way that a piston cooling device comprises:
the oil injection mechanism is arranged opposite to the cylinder and is used for injecting a cooling medium to the piston;
the output end of the flow regulating mechanism is communicated with the oil injection mechanism and is used for movably limiting the flow of the cooling medium which is conveyed to the oil injection mechanism from the flow regulating mechanism;
and the output end of the adjusting driving mechanism is connected and driven with the flow adjusting mechanism and used for sensing temperature and driving the flow adjusting mechanism to adjust the flow of the cooling medium.
It is another object of an embodiment of the present invention that the flow rate adjustment mechanism includes:
the cooling medium accommodating structure is communicated with the oil injection mechanism, and one end of the cooling medium accommodating structure, which is far away from the oil injection mechanism, is also communicated with a main oil duct;
and the movable limiting structure is movably connected in the cooling medium accommodating structure and is used for controlling the communication area of the cooling medium accommodating structure and the oiling mechanism.
Another objective of the embodiments of the present invention is that the movement limiting structure is controlled and driven by the adjustment driving mechanism, and the communication area between the cooling medium accommodating structure and the oil injection mechanism changes along with the temperature change of the cooling medium.
It is another object of an embodiment of the present invention that the movement restriction structure includes:
the plugging assembly is arranged in the cooling medium accommodating structure and communicated with the oiling mechanism, is connected with the adjusting driving mechanism for transmission, and is used for adjusting the communication area of the cooling medium accommodating structure and the oiling mechanism in a moving plugging mode;
the supporting assembly is connected with the plugging assembly and the cooling medium accommodating structure and used for assisting the plugging assembly to elastically recover after the adjusting driving mechanism drives the plugging assembly to adjust the communication area.
It is another object of an embodiment of the present invention that the thrust of the adjustment drive mechanism is greater than the sum of the restoring force of the support assembly and the friction force of the movement of the blocking assembly within the cooling medium accommodating structure, and the restoring force of the support assembly is greater than the sum of the oil pressure within the cooling medium accommodating structure and the friction force of the movement of the blocking assembly within the cooling medium accommodating structure.
Another objective of the embodiment of the present invention is that the oil injection mechanism includes an auxiliary oil pipe communicated with the cooling medium accommodating structure, and a nozzle connected to the auxiliary oil pipe, where the nozzle is opposite to the cylinder at an end away from the auxiliary oil pipe.
It is another object of an embodiment of the present invention that the adjustment drive mechanism comprises:
the temperature sensing driving assembly is used for sensing the temperature of the engine oil in the main oil duct and realizing driving action according to temperature change;
and one end of the linkage component is connected and arranged on the temperature sensing driving component, and the other end of the linkage component is connected and driven with the plugging component and is used for transmitting the driving action generated by the temperature sensing of the temperature sensing driving component to the plugging component.
The embodiment of the invention is realized by the following steps of a method for changing the cooling flow of the engine piston by random oil temperature, based on the piston cooling device, comprising the following steps: the adjusting and driving mechanism senses the temperature of the engine oil and drives the flow adjusting mechanism to move when the temperature of the engine oil rises, the flow of the engine oil is increased along with the movement of the flow adjusting mechanism based on the rise of the temperature of the oil, and the engine oil passes through the flow adjusting mechanism and then is injected into a piston in a cylinder through the oil injecting mechanism.
According to the piston cooling device provided by the embodiment of the invention, the flow of the cooling medium entering the oil injection mechanism through the flow regulating mechanism is regulated according to the temperature change, so that the flow of the engine oil can be saved, a bearing and other parts in the engine can be more fully lubricated, the piston can be better heated or run at a good temperature, the service life of the piston is prolonged, the working reliability is improved, and the stability of the engine in cold start or low-load running is effectively ensured.
Drawings
Fig. 1 is a schematic structural diagram of a piston cooling device according to an embodiment of the present invention.
In the drawings: 1. a main oil gallery; 2. a piston; 3. an oil chamber; 4. a wax thermostat; 5. a spring; 6. an engine oil nozzle; 7. a secondary oil gallery; 8. and a cylinder.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1, a piston cooling device according to an embodiment of the present invention includes:
the oil injection mechanism is arranged opposite to the cylinder and is used for injecting a cooling medium to the piston;
the output end of the flow regulating mechanism is communicated with the oil injection mechanism and is used for movably limiting the flow of the cooling medium which is conveyed to the oil injection mechanism from the flow regulating mechanism;
and the output end of the adjusting driving mechanism is connected and driven with the flow adjusting mechanism and used for sensing temperature and driving the flow adjusting mechanism to adjust the flow of the cooling medium.
In the embodiment of the invention, preferably, the cylinder is a cylinder 8, the cooling medium is preferably engine oil, one end of the oil injection mechanism is communicated with the flow regulating mechanism, the other end of the oil injection mechanism is opposite to the cylinder, the cooling medium enters the oil injection mechanism through the flow regulating mechanism, thereby spraying the cooling medium into the piston in the cylinder 8 for cooling, the flow regulating mechanism can realize the regulation of the flow of the cooling medium under the operation control of the regulating driving mechanism, thereby realizing the adjustment of the flow rate of the cooling medium entering the oiling mechanism through the flow rate adjusting mechanism according to the temperature change, the mode can save the flow of the engine oil, so that the bearings and other parts in the engine can be more fully lubricated, the piston can be better heated or run at a good temperature, the service life of the piston is prolonged, the working reliability is improved, and the stability of the engine in cold start or low-load running is effectively ensured.
As shown in fig. 1, as a preferred embodiment of the present invention, the flow rate adjustment mechanism includes:
the cooling medium accommodating structure is communicated with the oil injection mechanism, and one end of the cooling medium accommodating structure, which is far away from the oil injection mechanism, is also communicated with a main oil duct;
and the movable limiting structure is movably connected in the cooling medium accommodating structure and is used for controlling the communication area of the cooling medium accommodating structure and the oiling mechanism.
The movable limiting structure is controlled and driven by the adjusting driving mechanism, and the communication area of the cooling medium accommodating structure and the oil injection mechanism is changed along with the temperature change of the cooling medium.
In the embodiment of the invention, preferably, the cooling medium accommodating structure adopts the oil cavity 3, one end of the oil cavity 3 is communicated with the oil injection mechanism, the other end of the oil cavity is communicated with the main oil gallery 1, engine oil enters the oil cavity 3 through the main oil gallery 1, the oil cavity 3 can be movably assembled and is convenient to disassemble, a movable limiting structure is connected to one side of a joint far away from the main oil gallery 1 in the oil cavity 3, and the movable limiting structure and the oil injection mechanism are arranged opposite to the joint of the main oil gallery 1.
In the embodiment of the present invention, preferably, the movement limiting structure is driven by the adjusting driving mechanism to control the flow rate by adjusting the blocking area of the connection between the oil injecting mechanism and the oil chamber 3.
As shown in fig. 1, as a preferred embodiment of the present invention, the movement restriction structure includes:
the plugging assembly is arranged in the cooling medium accommodating structure and communicated with the oiling mechanism, is connected with the adjusting driving mechanism for transmission, and is used for adjusting the communication area of the cooling medium accommodating structure and the oiling mechanism in a moving plugging mode;
the supporting assembly is connected with the plugging assembly and the cooling medium accommodating structure and used for assisting the plugging assembly to elastically recover after the adjusting driving mechanism drives the plugging assembly to adjust the communication area.
The thrust of the adjusting driving mechanism is larger than the sum of the restoring force of the supporting component and the friction force of the plugging component moving in the cooling medium containing structure, and the restoring force of the supporting component is larger than the sum of the oil pressure in the cooling medium containing structure and the friction force of the plugging component moving in the cooling medium containing structure.
In the embodiment of the invention, preferably, the blocking component adopts a piston 2, the piston 2 is arranged in the oil cavity 3 in a sliding fit manner, one end of the piston 2 is elastically connected with the inner wall of the oil cavity 3 through a supporting component, the other end of the piston 2 is connected with an adjusting driving mechanism for transmission, the edge of the piston 2 blocks the communication position of the oil injection mechanism and the oil cavity 3, when the piston 2 moves, the piston 2 gradually breaks away from the blocking of the communication position, and after engine oil enters the oil cavity 3 through the main oil gallery 1, the engine oil can enter the oil injection mechanism through the communication position where the piston 2 breaks away from the blocking.
In the embodiment of the invention, preferably, the spring 5 is adopted as the support component, after the piston 2 is driven and compressed by the adjusting and driving mechanism, the elastic restoring force of the spring 5 is greater than the sum of the oil pressure generated by the engine oil entering the oil cavity 3 through the main oil duct 1 and the friction force of the inner walls of the piston 2 and the oil cavity 3, so that after the thrust of the adjusting and driving mechanism is removed, the spring 5 can push the piston 2 to restore the communication position of the blocking and filling mechanism and the oil cavity 3, and the thrust of the adjusting and driving mechanism is greater than the sum of the restoring force of the spring 5 and the friction force of the piston 2 moving in the oil cavity 3, so that the adjusting and driving mechanism can push the piston 2 to be separated from the blocking of the communication position, and through the cooperation, the oil injection of the oil filling mechanism can.
As shown in fig. 1, as a preferred embodiment of the present invention, the oil injection mechanism includes a secondary oil pipe disposed in the cooling medium accommodating structure in a communicating manner, and a nozzle connected to the secondary oil pipe, the nozzle being disposed opposite to the cylinder at an end away from the secondary oil pipe.
In the embodiment of the invention, preferably, one end of an auxiliary oil pipe 7 in the oil injection mechanism is communicated with the oil chamber 3, the communication position is opposite to the piston 2, a plurality of groups of nozzles 6 are further communicated with the auxiliary oil passage 7, the nozzles 6 are opposite to the cylinder 8, and when the piston 2 is separated from the sealing of the communication position of the auxiliary oil passage 7 and the oil chamber 3, the engine oil in the oil chamber 3 is sprayed out through the auxiliary oil passage 7 and the nozzles 6.
As shown in fig. 1, as a preferred embodiment of the present invention, the adjustment drive mechanism includes:
the temperature sensing driving assembly is used for sensing the temperature of the engine oil in the main oil duct and realizing driving action according to temperature change;
and one end of the linkage component is connected and arranged on the temperature sensing driving component, and the other end of the linkage component is connected and driven with the plugging component and is used for transmitting the driving action generated by the temperature sensing of the temperature sensing driving component to the plugging component.
In the embodiment of the invention, preferably, the temperature sensing driving component adopts a wax type thermostat 4, the linkage component adopts a central rod with one end movably extending into the wax type thermostat 4, one end of the central rod far away from the wax type thermostat 4 is fixedly connected with the piston 2, when the temperature of the engine oil in the main oil duct 1 exceeds 90 ℃, the paraffin in the wax type thermostat 4 is heated to melt and the volume of the paraffin is increased, the central rod pushes the piston 2 by overcoming the reaction force of the spring 5, so that the oil cavity 3 is communicated with the auxiliary oil duct 7, and after the engine oil in the auxiliary oil duct 7 is accumulated, the nozzle 6 starts to spray oil when the pressure is higher than a certain value; when the temperature of engine oil exceeds 95 ℃, the volume of paraffin reaches the maximum, the piston 2 is pushed to the most lateral side of the oil cavity 3 by the central rod, and the communication area between the oil cavity 3 and the auxiliary oil duct 7 reaches the maximum; when the temperature of the engine oil is lower than 90 ℃, the piston 2 seals the auxiliary oil duct 7, the oil pressure in the auxiliary oil duct 7 is very low and is not enough to open the nozzle 6, and the nozzle 6 stops injecting oil, so that the stability and the reliability of the engine during cold start or low-load operation are ensured.
One embodiment of the invention provides a method for changing cooling flow of an engine piston by random oil temperature, which comprises the following steps: the adjusting and driving mechanism senses the temperature of the engine oil and drives the flow adjusting mechanism to move when the temperature of the engine oil rises, the flow of the engine oil is increased along with the movement of the flow adjusting mechanism based on the rise of the temperature of the oil, and the engine oil passes through the flow adjusting mechanism and then is injected into a piston in a cylinder through the oil injecting mechanism.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A piston cooling arrangement, comprising:
the oil injection mechanism is arranged opposite to the cylinder and is used for injecting a cooling medium to the piston;
the output end of the flow regulating mechanism is communicated with the oil injection mechanism and is used for movably limiting the flow of the cooling medium which is conveyed to the oil injection mechanism from the flow regulating mechanism;
and the output end of the adjusting driving mechanism is connected and driven with the flow adjusting mechanism and used for sensing temperature and driving the flow adjusting mechanism to adjust the flow of the cooling medium.
2. The piston cooling arrangement as set forth in claim 1, wherein said flow adjustment mechanism includes:
the cooling medium accommodating structure is communicated with the oil injection mechanism, and one end of the cooling medium accommodating structure, which is far away from the oil injection mechanism, is also communicated with a main oil duct;
and the movable limiting structure is movably connected in the cooling medium accommodating structure and is used for controlling the communication area of the cooling medium accommodating structure and the oiling mechanism.
3. The piston cooling device as claimed in claim 2, wherein the movement limiting structure is controlled and driven by the adjusting driving mechanism, and the communication area of the cooling medium accommodating structure and the oil injection mechanism is changed along with the temperature change of the cooling medium.
4. A piston cooling arrangement as set forth in claim 3, wherein said movement restricting structure includes:
the plugging assembly is arranged in the cooling medium accommodating structure and communicated with the oiling mechanism, is connected with the adjusting driving mechanism for transmission, and is used for adjusting the communication area of the cooling medium accommodating structure and the oiling mechanism in a moving plugging mode;
the supporting assembly is connected with the plugging assembly and the cooling medium accommodating structure and used for assisting the plugging assembly to elastically recover after the adjusting driving mechanism drives the plugging assembly to adjust the communication area.
5. The piston cooling device as claimed in claim 4, wherein the thrust force of the actuator is greater than the sum of a restoring force of the support member and a frictional force of the plug member moving in the cooling medium accommodating structure, and the restoring force of the support member is greater than the sum of a pressure of oil pressure in the cooling medium accommodating structure and the frictional force of the plug member moving in the cooling medium accommodating structure.
6. The piston cooling device as claimed in claim 4, wherein the oil injection mechanism comprises a secondary oil pipe communicated with the cooling medium accommodating structure and a nozzle connected to the secondary oil pipe, and the nozzle is arranged opposite to the cylinder away from one end of the secondary oil pipe.
7. The piston cooling arrangement as set forth in claim 5 wherein said adjustment drive mechanism includes:
the temperature sensing driving assembly is used for sensing the temperature of the engine oil in the main oil duct and realizing driving action according to temperature change;
and one end of the linkage component is connected and arranged on the temperature sensing driving component, and the other end of the linkage component is connected and driven with the plugging component and is used for transmitting the driving action generated by the temperature sensing of the temperature sensing driving component to the plugging component.
8. A method for changing the cooling flow of an engine piston according to the temperature of oil, which is characterized in that based on the piston cooling device according to any one of claims 1-7, the method comprises the following steps: the adjusting and driving mechanism senses the temperature of the engine oil and drives the flow adjusting mechanism to move when the temperature of the engine oil rises, the flow of the engine oil is increased along with the movement of the flow adjusting mechanism based on the rise of the temperature of the oil, and the engine oil passes through the flow adjusting mechanism and then is injected into a piston in a cylinder through the oil injecting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911217375.2A CN110761885A (en) | 2019-12-03 | 2019-12-03 | Method and device for changing cooling flow of engine piston by random oil temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911217375.2A CN110761885A (en) | 2019-12-03 | 2019-12-03 | Method and device for changing cooling flow of engine piston by random oil temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110761885A true CN110761885A (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911217375.2A Pending CN110761885A (en) | 2019-12-03 | 2019-12-03 | Method and device for changing cooling flow of engine piston by random oil temperature |
Country Status (1)
| Country | Link |
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| CN (1) | CN110761885A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980044457A (en) * | 1996-12-06 | 1998-09-05 | 박병재 | Piston cooling structure |
| WO2012096140A1 (en) * | 2011-01-11 | 2012-07-19 | 三菱重工業株式会社 | Cooling device for engine |
| CN203515759U (en) * | 2013-10-07 | 2014-04-02 | 潍柴动力股份有限公司 | Diesel engine piston cooling nozzle control device |
| CN204060840U (en) * | 2014-06-17 | 2014-12-31 | 上海汽车集团股份有限公司 | Engine lubrication system |
| CN104832241A (en) * | 2014-12-12 | 2015-08-12 | 北汽福田汽车股份有限公司 | Engine lubrication control device, system and control method |
| CN206503633U (en) * | 2016-12-07 | 2017-09-19 | 东风商用车有限公司 | A kind of Temperature Control Type engine piston cooling nozzle structure |
| CN109505691A (en) * | 2018-12-18 | 2019-03-22 | 安徽江淮汽车集团股份有限公司 | Piston cools down injection system, engine and fuel injection control method |
| CN211008848U (en) * | 2019-12-03 | 2020-07-14 | 吉林大学 | Piston cooling device |
-
2019
- 2019-12-03 CN CN201911217375.2A patent/CN110761885A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980044457A (en) * | 1996-12-06 | 1998-09-05 | 박병재 | Piston cooling structure |
| WO2012096140A1 (en) * | 2011-01-11 | 2012-07-19 | 三菱重工業株式会社 | Cooling device for engine |
| CN203515759U (en) * | 2013-10-07 | 2014-04-02 | 潍柴动力股份有限公司 | Diesel engine piston cooling nozzle control device |
| CN204060840U (en) * | 2014-06-17 | 2014-12-31 | 上海汽车集团股份有限公司 | Engine lubrication system |
| CN104832241A (en) * | 2014-12-12 | 2015-08-12 | 北汽福田汽车股份有限公司 | Engine lubrication control device, system and control method |
| CN206503633U (en) * | 2016-12-07 | 2017-09-19 | 东风商用车有限公司 | A kind of Temperature Control Type engine piston cooling nozzle structure |
| CN109505691A (en) * | 2018-12-18 | 2019-03-22 | 安徽江淮汽车集团股份有限公司 | Piston cools down injection system, engine and fuel injection control method |
| CN211008848U (en) * | 2019-12-03 | 2020-07-14 | 吉林大学 | Piston cooling device |
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Application publication date: 20200207 |