CN111059341A - Engine piston cooling solenoid valve structure - Google Patents
Engine piston cooling solenoid valve structure Download PDFInfo
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- CN111059341A CN111059341A CN201911392748.XA CN201911392748A CN111059341A CN 111059341 A CN111059341 A CN 111059341A CN 201911392748 A CN201911392748 A CN 201911392748A CN 111059341 A CN111059341 A CN 111059341A
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- valve
- magnetic core
- engine piston
- yoke bush
- piston cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention provides an engine piston cooling solenoid valve structure applied to the technical field of automobile engine parts, one end of a valve sleeve (5) of the engine piston cooling solenoid valve structure is connected with a shell (1), a valve core (6) is movably arranged in the valve sleeve (5), the end surface of the other end of the valve sleeve (5) is provided with an oil inlet (7), the side surface of one end, close to the oil inlet (7), of the valve sleeve (5) is provided with an oil outlet (8), a magnetic core shaft (9) is arranged on a magnetic core body (4), the magnetic core shaft (9) penetrates through a through hole (10) in the valve sleeve (5) to be connected with one end of the valve core (6), the valve sleeve (5) is provided with a front yoke bush (18) which is of an integrated structure with the valve sleeve (5), and the front yoke bush (18) extends into a coil (11) from the other side of the coil (11). The oil injection time and the oil injection quantity during cooling are accurately matched with the working condition of the engine.
Description
Technical Field
The invention belongs to the technical field of automobile engine parts, and particularly relates to an engine piston cooling electromagnetic valve structure.
Background
After technologies such as supercharging and high compression ratio are applied to an engine, the combustion temperature of the engine is higher and higher, and the temperature of the environment where the engine piston is located is higher and higher. In order to solve the problem of cylinder pulling caused by overhigh temperature of the piston position of the combustion chamber of the engine, prolong the service life of the piston and the cylinder body of the engine, reduce the abrasion of the piston and the cylinder body and improve the fuel economy, a piston cooling system is used on the engine. After the piston cooling system is used on an automobile, the piston abrasion can be reduced, the service life of the piston is prolonged, and the stable operation of an engine is ensured. The control part of the piston cooling system in the prior art is mainly a pressure limiting valve, and when the pressure of an oil duct is greater than a certain value, the pressure limiting valve is opened to start oil spraying and cooling on the piston part of an engine. Such structure and technique, the cooling of only mechanical oil spout, can't carry out oil spout cooling control according to engine operating mode, consequently, can't effectively cooperate the engine operating mode to carry out the regulation of oil spout time, fuel injection quantity, consequently, can't effectively satisfy the refrigerated demand of engine piston, and the cooling effect is poor.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a simple structure, can realize control to the solenoid valve through the signal of telecommunication (PWM signal) that ECU sent, thereby can be according to the different signal modulation flow size that engine operating mode sent through ECU, thereby fuel injection time when making the cooling, fuel injection quantity and engine operating mode obtain accurate matching, improve the cooling effect, thereby the required temperature of accurate control engine piston, avoid easily causing excessive cooling, can also solve the engine combustion insufficient, the engine piston cooling solenoid valve structure of emission aggravation scheduling problem.
To solve the technical problems, the invention adopts the technical scheme that:
the invention relates to an engine piston cooling electromagnetic valve structure which comprises a shell and a solenoid assembly, wherein the solenoid assembly is connected with an ECU (electronic control Unit), the solenoid assembly is arranged in the shell, a magnetic core body is movably arranged in the solenoid assembly, one end of a valve sleeve is connected with the shell, a valve core is movably arranged in the valve sleeve, the end surface of the other end of the valve sleeve is provided with an oil inlet, the side surface of one end, close to the oil inlet, of the valve sleeve is provided with an oil outlet, a magnetic core shaft is arranged on the magnetic core body, the magnetic core shaft penetrates through a through hole in the valve sleeve to be connected with one end.
The solenoid assembly comprises a coil, a framework, a contact pin and a rear yoke bush, wherein the rear yoke bush is fixedly installed in the coil from one side of the coil, a front yoke bush which is of an integrated structure with the valve bush is arranged on the valve bush, and the front yoke bush extends into the coil from the other side of the coil.
The back yoke bush comprises a back yoke bush body and a back yoke bush end part, and the back yoke bush body and the back yoke bush end part of the back yoke bush are arranged to be of a T-shaped structure. The guide sleeve is arranged between the back yoke bush body and the coil.
The back yoke bush body of the guide bush is fixedly arranged in the coil, and the end part of the back yoke bush is simultaneously attached to the side face of one side of the coil and the framework.
The ECU is set into a structure capable of sending an electric signal to the solenoid assembly and stopping sending the electric signal, when the ECU stops sending the electric signal to the solenoid assembly, the spring is set to act on the magnetic core shaft, so that the magnetic core body is pushed to be located at the initial position through the magnetic core shaft, and when the structure of the magnetic core body located at the initial position is located at the initial position, the oil outlet is set to be located at the maximum opening.
When ECU sends the signal of telecommunication to solenoid assembly, the coil sets up to can promote the magnetic core body to move to being close to oil inlet one side to through the structure that the magnetic core axle promotes the case and moves to being close to oil inlet direction.
When the valve core moves towards the direction close to the oil inlet, the valve core is set to gradually block the oil outlet, so that the opening of the oil outlet is gradually reduced.
The outer surface of the valve sleeve is provided with a valve sleeve sealing groove which is arranged along the circumference of the outer surface of the valve sleeve, and a valve sleeve O-shaped sealing ring is sleeved in the valve sleeve sealing groove.
The outer surface of the front yoke bush of the valve sleeve is provided with a front yoke bush sealing groove which is arranged along the periphery of the outer surface of the front yoke bush, and a front yoke bush O-shaped sealing ring is sleeved in the front yoke bush sealing groove.
The valve sleeve in be close to oil inlet one end inside set up the spring holder, set up circlip between spring holder and the valve sleeve terminal surface that sets up the oil inlet, the spring sets up to can extend to in the spring holder to support and lean on the structure on the spring holder.
By adopting the technical scheme of the invention, the following beneficial effects can be obtained:
according to the engine piston cooling electromagnetic valve structure, the solenoid assembly and the valve sleeve are simultaneously installed on the shell, the magnetic core body is arranged in the solenoid assembly, the valve core is arranged in the valve sleeve, and the ECU is connected with the solenoid assembly. Therefore, the ECU sends signals to control the magnetic core body to move in the solenoid assembly, so that the correlation is established between the solenoid assembly and the valve core, the valve core moves at different positions to control the opening size of the oil outlet, and the flow control purpose is achieved. Therefore, when the engine works, the engine is in different working conditions, the ECU (engine ECU) can transmit electric signals with different sizes to the solenoid assembly, the magnetic core body is pushed under the action of electromagnetic force, the magnetic core shaft connected with the magnetic core body can push the valve core to move in the valve sleeve, the valve core blocks the size of the oil outlet, so that the oil outlet serving as a flow hole can generate different-size opening degrees to control the flow size of the piston cooling valve, and when the valve core completely blocks the oil outlet, the cooling is completely closed. When the solenoid assembly does not receive an electric signal, the valve core and the valve sleeve opening reach the maximum state, and the cooling opening is carried out at the moment; when the solenoid assembly receives an electric signal, the oil outlet is gradually reduced along with the increase of the electric signal along with the movement of the valve core in the valve sleeve until the valve core is closed, and the process from cooling to cooling is carried out at the moment, so that the aim of cooling the engine piston is fulfilled. Above-mentioned structure for the flow size and the switching of the oil-out of engine piston cooling solenoid valve structure, the operating mode suits with the engine during operation, carry out oil spout cooling control according to engine operating mode, effectively cooperate the engine operating mode to carry out the regulation of oil spout time, fuel injection quantity, consequently, effectively satisfy the refrigerated demand of engine piston, effectively improve the cooling effect, improve the operational environment of engine piston, thereby improve the engine piston so that the life of engine, reduce the engine maintenance cost, improve engine performance. The engine piston cooling electromagnetic valve structure is simple in structure and control, and can control the electromagnetic valve through an electric signal (PWM signal) sent by the ECU, so that the flow can be adjusted through different signals sent by the ECU according to the working condition of the engine, and the oil injection time during cooling is shortened. The oil injection quantity is accurately matched with the working condition of the engine, the cooling effect is improved, the temperature required by the engine piston is accurately controlled, excessive cooling is avoided, and the problems of insufficient combustion, emission deterioration and the like of the engine can be solved.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
FIG. 1 is a schematic structural diagram of an engine piston cooling solenoid valve structure according to the present invention;
in the drawings are labeled: 1. a housing; 2. a solenoid assembly; 3. a guide sleeve; 4. a magnetic core body; 5. a valve housing; 6. a valve core; 7. an oil inlet; 8. an oil outlet; 9. a magnetic core shaft; 10. a through hole; 11. a coil; 12. a framework; 13. inserting a pin; 14. a rear yoke bush; 15. a rear yoke bush body; 16. a back yoke bush end; 17. a spring; 18. a front yoke bush; 19. a valve sleeve sealing groove; 20. a valve sleeve O-shaped sealing ring; 21. a front yoke bush seal groove; 22. the front yoke is sleeved with an O-shaped sealing ring; 23. a circlip; 24. a spring seat; 25. and (7) a gasket.
Detailed Description
The following detailed description of the embodiments of the present invention, such as the shapes and structures of the components, the mutual positions and connection relations among the components, the functions and operation principles of the components, will be made by referring to the accompanying drawings and the description of the embodiments:
as shown in fig. 1, the present invention is an engine piston cooling solenoid valve structure, which comprises a housing 1, the solenoid assembly 2, the solenoid assembly 2 is connected with the ECU, the solenoid assembly 2 is installed in the casing 1, the magnetic core 4 is movably installed in the solenoid assembly 2, further, the solenoid assembly further comprises a guide sleeve 3, the guide sleeve 3 is installed in the solenoid assembly 2, the solenoid assembly 2 is installed in the casing 1, the magnetic core 4 is movably installed in the guide sleeve 3, one end of the valve sleeve 5 is connected with the casing 1, the valve core 6 is movably installed in the valve sleeve 5, the oil inlet 7 is formed in the end face of the other end of the valve sleeve 5, the side face, close to the oil inlet 7, of the valve sleeve 5 is provided with the oil outlet 8, the magnetic core shaft 9 is installed on the magnetic core 4, the magnetic core shaft 9 penetrates through a through hole 10 in the valve sleeve 5 to be connected with. Above-mentioned structure, to the unable great operating condition of engine change that uses of engine piston cooling system among the prior art, improve the structure of engine piston cooling solenoid valve structure. Thus, the housing is simultaneously provided with the solenoid assembly 2 and the valve housing 5, the solenoid assembly 2 is provided with the magnetic core 4, the valve housing 5 is provided with the valve core 6, and the ECU is connected with the solenoid assembly 2. Thus, the ECU sends signals to control the magnetic core body to move in the solenoid assembly 2, so that the correlation is established between the solenoid assembly 2 and the valve core, the valve core moves at different positions, the opening size of the oil outlet is controlled, and the flow control purpose is achieved. Therefore, when the engine works, the engine is in different working conditions, the ECU (engine ECU) can transmit electric signals with different sizes to the solenoid assembly, the magnetic core body is pushed under the action of electromagnetic force, the magnetic core shaft connected with the magnetic core body can push the valve core to move in the valve sleeve, the valve core blocks the size of the oil outlet, so that the oil outlet serving as a flow hole can generate different-size opening degrees to control the flow size of the piston cooling valve, and when the valve core completely blocks the oil outlet, the cooling is completely closed. When the solenoid assembly does not receive an electric signal, the valve core and the valve sleeve opening reach the maximum state, and the cooling opening is carried out at the moment; when the solenoid assembly receives an electric signal, the oil outlet is gradually reduced along with the increase of the electric signal along with the movement of the valve core in the valve sleeve until the valve core is closed, and the process from cooling to cooling is carried out at the moment, so that the aim of cooling the engine piston is fulfilled. Above-mentioned structure for the flow size and the switching of the oil-out of engine piston cooling solenoid valve structure suit with the operating mode of engine during operation, carry out oil spout cooling control according to engine operating mode, effectively cooperate the engine operating mode to carry out the regulation of oil spout time, fuel injection quantity, consequently, effectively satisfy the refrigerated demand of engine piston, effectively improve the cooling effect, improve the engine piston so that the life of engine, reduce engine maintenance cost, improve engine performance. The engine piston cooling electromagnetic valve structure is simple in structure and control, the electromagnetic valve can be controlled through an electric signal (PWM signal) sent by the ECU, so that the flow can be adjusted through different signals sent by the ECU according to the working condition of an engine, the oil injection time and the oil injection quantity during cooling are accurately matched with the working condition of the engine, the cooling effect is improved, the temperature required by the engine piston is accurately controlled, excessive cooling is avoided, and the problems of insufficient combustion, poor emission and the like of the engine can be solved.
The solenoid assembly 2 comprises a coil 11, a framework 12, a pin 13 and a rear yoke bush 14, wherein the guide bush 3 is fixedly arranged in the coil 11 from one side of the coil 11, a front yoke bush 18 which is in an integral structure with the valve bush 5 is arranged on the valve bush 5, and the front yoke bush 18 extends into the coil 11 from the other side of the coil 11. With the above structure, the front yoke bush 18 is put into the coil, and when the solenoid assembly 2 is operated, the magnetic flux leakage can be reduced, and the electromagnetic force can be improved. The so-called electromagnetic field and the circuit are the same to form a circularly closed circuit/magnetic circuit, and the magnetic energy realizes the so-called circuit/magnetic circuit.
The guide sleeve 3 comprises a back yoke bush body 15 and a back yoke bush end 16, and the back yoke bush body 15 and the back yoke bush end 16 of the back yoke bush 14 are arranged to be of a T-shaped structure. The back yoke bush body 15 of the back yoke bush 14 is fixedly installed in the coil 11, and the back yoke bush end 16 is simultaneously attached to one side surface of the coil 11 and the framework 12. According to the structure, the rear yoke bush is fixedly arranged at the end part of the rear yoke bush in the coil and is fixed with the axial position of the coil, and the rear yoke bush body is fixed with the radial position of the coil, so that the automobile is suitable for the environment with large vibration during the work of an automobile and is not easy to loosen. Therefore, the overall performance of the electromagnetic valve is effectively improved.
The ECU is set to be in a structure capable of sending an electric signal to the solenoid assembly 2 and stopping sending the electric signal, when the ECU stops sending the electric signal to the solenoid assembly 2, the spring 17 is set to act on the magnetic core shaft 9, so that the magnetic core body 4 is pushed to be located at the initial position through the magnetic core shaft 9, and when the magnetic core body 4 is located at the initial position, the oil outlet 8 is set to be in a structure with the largest opening. With the structure, when the electromagnetic valve does not work, the spring is in an extending state, so that the valve core is pushed to move towards one side close to the solenoid assembly 2 until the magnetic core body is abutted. At the moment, the valve core cannot block the oil outlet, and the oil outlet is in the maximum opening state.
When the ECU sends an electric signal to the solenoid assembly 2, the coil 11 is configured to push the magnetic core body 4 to move towards the side close to the oil inlet 7, so that the magnetic core shaft 9 pushes the valve core 6 to move towards the direction close to the oil inlet 7. When the valve core 6 moves towards the direction close to the oil inlet 7, the valve core 6 is set to gradually block the oil outlet 8, so that the opening of the oil outlet 8 is gradually reduced.
The outer surface of the valve sleeve 5 is provided with a valve sleeve sealing groove 19 which is arranged along the circumference of the outer surface of the valve sleeve 5, and a valve sleeve O-shaped sealing ring 20 is sleeved in the valve sleeve sealing groove 19. The above structure, because the solenoid valve needs to be mounted on the engine, the valve housing O-ring 20 performs a reliable sealing function.
The outer surface of the front yoke bush 18 of the valve sleeve 5 is provided with a front yoke bush sealing groove 21 which is arranged along the periphery of the outer surface of the front yoke bush 18, and a front yoke bush O-shaped sealing ring 22 is sleeved in the front yoke bush sealing groove 21. With the above structure, reliable sealing is required between the front yoke bush 18 and the coil interior, and the sealing performance is good.
A spring seat is arranged in one end, close to the oil inlet 7, of the valve sleeve 5, an elastic retainer ring 23 is arranged between the spring seat and the end face of the valve sleeve provided with the oil inlet, and the spring 17 is arranged to extend into the spring seat 24 and abut against the spring seat 24. Above-mentioned structure, spring one end supports in leaning on the spring holder, and the spring holder realizes the location to the spring. And the other end of the spring is positioned in the valve core, so that the positioning is realized. The spring can only move along the axial direction of the valve core, and the radial excessive movement is avoided.
According to the engine piston cooling electromagnetic valve structure, the solenoid assembly and the valve sleeve are simultaneously installed on the shell, the magnetic core body is arranged in the solenoid assembly, the valve core is arranged in the valve sleeve, and the ECU is connected with the solenoid assembly. Therefore, the ECU sends signals to control the magnetic core body to move in the solenoid assembly, so that the correlation is established between the solenoid assembly and the valve core, the valve core moves at different positions to control the opening size of the oil outlet, and the flow control purpose is achieved. Therefore, when the engine works, the engine is in different working conditions, the ECU (engine ECU) can transmit electric signals with different sizes to the solenoid assembly, the magnetic core body is pushed under the action of electromagnetic force, the magnetic core shaft connected with the magnetic core body can push the valve core to move in the valve sleeve, the valve core blocks the size of the oil outlet, so that the oil outlet serving as a flow hole can generate different-size opening degrees to control the flow size of the piston cooling valve, and when the valve core completely blocks the oil outlet, the cooling is completely closed. When the solenoid assembly does not receive an electric signal, the valve core and the valve sleeve opening reach the maximum state, and the cooling opening is carried out at the moment; when the solenoid assembly receives an electric signal, the oil outlet is gradually reduced along with the increase of the electric signal along with the movement of the valve core in the valve sleeve until the valve core is closed, and the process from cooling to cooling is carried out at the moment, so that the aim of cooling the engine piston is fulfilled. Above-mentioned structure for the flow size and the switching of the oil-out of engine piston cooling solenoid valve structure, the operating mode suits with the engine during operation, carry out oil spout cooling control according to engine operating mode, effectively cooperate the engine operating mode to carry out the regulation of oil spout time, fuel injection quantity, consequently, effectively satisfy the refrigerated demand of engine piston, effectively improve the cooling effect, improve the operational environment of engine piston, thereby improve the engine piston so that the life of engine, reduce the engine maintenance cost, improve engine performance. The engine piston cooling electromagnetic valve structure is simple in structure and control, and can realize accurate control on the electromagnetic valve through electric signals (PWM signals) sent by the ECU, so that the flow can be adjusted through different signals sent by the ECU according to the working condition of an engine, the oil injection time and the oil injection quantity during cooling are accurately matched with the working condition of the engine, the cooling effect is improved, the temperature required by the engine piston is accurately controlled, excessive cooling is avoided, and the problems of insufficient combustion, poor emission and the like of the engine can be solved.
The present invention has been described in connection with the accompanying drawings, and it is to be understood that the invention is not limited to the specific embodiments disclosed, but is intended to cover various modifications, changes and equivalents of the embodiments of the invention, and its application to other applications without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides an engine piston cooling solenoid valve structure which characterized in that: the engine piston cooling electromagnetic valve structure comprises a shell (1) and a solenoid assembly (2), wherein the solenoid assembly (2) is connected with an ECU (electronic control unit), the solenoid assembly (2) is installed in the shell (1), a magnetic core body (4) is movably installed in the solenoid assembly (2), one end of a valve sleeve (5) is connected with the shell (1), a valve core (6) is movably installed in the valve sleeve (5), an oil inlet (7) is formed in the end face of the other end of the valve sleeve (5), an oil outlet (8) is formed in the side face of one end, close to the oil inlet (7), of the valve sleeve (5), a magnetic core shaft (9) is installed on the magnetic core body (4), the magnetic core shaft (9) penetrates through a through hole (10) in the valve sleeve (5) to be connected with one end of the valve core (6), a spring (17) is arranged between the valve core (6) and one end, provided with the valve sleeve (5) provided with, the front yoke bush (18) extends from the other side of the coil (11) into the coil (11).
2. The engine piston cooling solenoid valve structure according to claim 1, wherein: the solenoid assembly (2) comprises a coil (11), a framework (12), a contact pin (13) and a back yoke bush (14), and the guide bush (3) is fixedly installed in the coil (11) from one side of the coil (11).
3. The engine piston cooling solenoid valve structure according to claim 2, wherein: the rear yoke bush (14) comprises a rear yoke bush body (15) and a rear yoke bush end part (16), and the rear yoke bush body (15) and the rear yoke bush end part (16) are arranged to be of a T-shaped structure.
4. The engine piston cooling solenoid valve structure according to claim 3, wherein: the back yoke bush body (15) of the back yoke bush (14) is fixedly arranged in the coil (11), and the end part (16) of the guide bush is simultaneously attached to one side face of the coil (11) and the framework (12).
5. The engine piston cooling solenoid valve structure according to claim 1 or 2, characterized in that: the ECU is set to be in a structure capable of sending an electric signal to the solenoid assembly (2) and stopping sending the electric signal, when the ECU stops sending the electric signal to the solenoid assembly (2), the spring (17) is set to act on the magnetic core shaft (9), so that the magnetic core body (4) is pushed to be in a structure at an initial position through the magnetic core shaft (9), when the structure at the initial position of the magnetic core body (4) is in the initial position, the oil outlet (8) is set to be in a structure with a largest opening.
6. The engine piston cooling solenoid valve structure according to claim 5, wherein: when the ECU sends an electric signal to the solenoid assembly (2), the coil (11) is arranged to be capable of pushing the magnetic core body (4) to move towards one side close to the oil inlet (7), so that the magnetic core shaft (9) pushes the valve core (6) to move towards the direction close to the oil inlet (7).
7. The engine piston cooling solenoid valve structure according to claim 6, wherein: when the valve core (6) moves towards the direction close to the oil inlet (7), the valve core (6) is set to gradually block the oil outlet (8), so that the opening of the oil outlet (8) is gradually reduced.
8. The engine piston cooling solenoid valve structure according to claim 1 or 2, characterized in that: valve barrel (5) surface set up along valve barrel (5) surface a week valve barrel seal groove (19) of arranging, suit valve barrel O type sealing washer (20) in valve barrel seal groove (19).
9. The engine piston cooling solenoid valve structure according to claim 1 or 2, characterized in that: the outer surface of a front yoke bush (18) of the valve sleeve (5) is provided with a front yoke bush sealing groove (21) which is arranged along the periphery of the outer surface of the front yoke bush (18), and a front yoke bush O-shaped sealing ring (22) is sleeved in the front yoke bush sealing groove (21).
10. The engine piston cooling solenoid valve structure according to claim 1 or 2, characterized in that: valve barrel (5) in be close to oil inlet (7) one end inside set up spring holder (24), set up circlip (23) between spring holder (24) and the valve barrel (5) terminal surface that sets up oil inlet (7), spring (17) set up to can extend to in spring holder (24) to support and lean on the structure on spring holder (24).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911392748.XA CN111059341B (en) | 2019-12-30 | 2019-12-30 | Engine piston cooling solenoid valve structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911392748.XA CN111059341B (en) | 2019-12-30 | 2019-12-30 | Engine piston cooling solenoid valve structure |
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| CN111059341A true CN111059341A (en) | 2020-04-24 |
| CN111059341B CN111059341B (en) | 2022-06-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111702146A (en) * | 2020-06-30 | 2020-09-25 | 江苏理工学院 | Electromagnetic valve jet type cooling device for aluminum alloy die-casting die core |
| CN115388192A (en) * | 2021-09-26 | 2022-11-25 | 广东骏驰科技股份有限公司 | Normally closed piston cooling control electromagnetic valve |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111702146A (en) * | 2020-06-30 | 2020-09-25 | 江苏理工学院 | Electromagnetic valve jet type cooling device for aluminum alloy die-casting die core |
| CN115388192A (en) * | 2021-09-26 | 2022-11-25 | 广东骏驰科技股份有限公司 | Normally closed piston cooling control electromagnetic valve |
| CN115388192B (en) * | 2021-09-26 | 2023-12-29 | 广东骏驰科技股份有限公司 | Normally closed type piston cooling control electromagnetic valve |
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|---|---|
| CN111059341B (en) | 2022-06-10 |
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