CN215596472U - Novel engine oil control valve - Google Patents
Novel engine oil control valve Download PDFInfo
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- CN215596472U CN215596472U CN202122309935.6U CN202122309935U CN215596472U CN 215596472 U CN215596472 U CN 215596472U CN 202122309935 U CN202122309935 U CN 202122309935U CN 215596472 U CN215596472 U CN 215596472U
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- plunger
- guide cap
- valve
- stator
- coil assembly
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Abstract
The utility model relates to the technical field of engine oil control valves, in particular to a novel engine oil control valve which comprises a coil assembly, a valve body, a guide cap, a plunger and a stator, wherein a yoke shell is arranged on the outer side of the coil assembly, the bottom of the yoke shell is connected with the top of the valve body, a valve core shaft is arranged in a cavity of the valve body, the guide cap is fixed in the cavity of the coil assembly, an opening of the guide cap faces the valve core shaft, the stator is positioned at the opening of the inner cavity of the guide cap, a flanging part extending out of the guide cap is arranged on the outer edge of the stator, and the flanging part is extruded and fixed between the coil assembly and the valve body; the plunger is positioned in the guide cap, a plurality of ball grooves which are axially formed along the plunger are formed in the peripheral surface of the plunger, balls are arranged in the ball grooves, and rolling friction is formed between the plunger and the guide cap through the balls; the utility model has the advantages of faster and more accurate response speed and longer service life.
Description
Technical Field
The utility model relates to the technical field of engine oil control valves, in particular to a novel engine oil control valve.
Background
The function of the engine oil control valve is to regulate the pressure of the engine lubrication system, and the working principle of the existing engine oil control valve is as follows: when the control valve is electrified, the coil and the stator on the control valve form an electromagnet to generate magnetic force, the plunger is magnetically attracted to move, and then the plunger pushes the valve core shaft in the valve body to move, so that an oil path between the valve body and the valve core shaft is changed, further the oil supply to the VVT is changed, and the VCP is controlled.
Wherein, the inside installation of coil provides the direction cap of direction for the plunger removes, and plunger sliding connection is in the direction cap, however discovers in the long-time high-speed work of plunger, and guide cap and plunger sliding friction all can produce wearing and tearing, and this influences the reaction rate of oil control valve again, influences the life of oil control valve.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide a novel engine oil control valve which is faster and more accurate in response speed and longer in service life.
The technical scheme of the utility model is as follows:
a novel engine oil control valve comprises a coil assembly, a valve body, a guide cap, a plunger and a stator, wherein a yoke shell is arranged on the outer side of the coil assembly, the bottom of the yoke shell is connected with the top of the valve body, and a valve core shaft is arranged in a cavity of the valve body;
the guide cap is fixed in a cavity of the coil assembly, an opening of the guide cap faces the valve core shaft, the stator is located at the opening of the cavity of the guide cap, a flanging part extending out of the guide cap is arranged on the outer edge of the stator, and the flanging part is fixed between the coil assembly and the valve body in an extruding mode;
the plunger is positioned in the guide cap, a plurality of ball grooves which are axially formed along the plunger are formed in the peripheral surface of the plunger, balls are arranged in the ball grooves, and rolling friction is formed between the plunger and the guide cap through the balls;
the bottom of the plunger is connected with a shaft body, the bottom surface of the shaft body is in contact with the top surface of the valve core shaft, and a movable gap is reserved between the shaft body and the stator.
Preferably, the bottom of the inner wall of the stator is fixedly connected with an isolation ring for axially limiting the valve core shaft, the shaft body penetrates through an inner hole of the isolation ring, and a movable gap is reserved between the inner wall of the isolation ring and the outer wall of the shaft body.
Preferably, the middle part of the inner wall of the stator is provided with a limiting bulge for axially limiting the plunger.
Preferably, the bottom of the cavity of the valve body is connected with a retaining ring, the valve core shaft is connected in the cavity of the valve body in a sliding mode, and a spring is arranged between the valve core shaft and the retaining ring.
Preferably, rubber rings are padded between the folded edge parts and the coil assembly and between the folded edge parts and the valve body respectively.
Compared with the prior art, the utility model has the following advantages:
according to the utility model, rolling friction is formed between the plunger and the guide cap through the balls, and the structural resistance is smaller compared with the contact friction between the plunger and the guide cap, so that the response speed of the engine oil control valve is faster and more accurate;
and the rolling friction structure avoids the abrasion caused by the direct contact of the plunger and the guide cap, so that the problem that the plunger and the valve core shaft are not aligned due to abrasion is avoided, the axial movement of the plunger is smoother, and meanwhile, the service life of the valve core shaft is greatly prolonged due to the rolling friction structure design.
In addition, the ball is additionally arranged between the plunger and the guide cap, so that an annular space is formed between the plunger and the guide cap, and when the plunger moves, the annular space is utilized to communicate gas or oil at the front end and the rear end of the plunger, so that pressure build-up caused by the forward and backward movement of the plunger is avoided, and the response speed of the utility model is further improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the plunger;
FIG. 3 is a schematic structural view of a stator;
in the figure: 1. coil assembly, 2, yoke casing, 3, ball, 4, plunger, 5, axis body, 6, direction cap, 7, rubber ring, 8, cage, 9, stator, 10, retaining ring, 11, valve body, 12, ball groove, 13, case axle, 14, spring, 15, spacing arch, 16, hem portion.
Detailed Description
The utility model is further illustrated below with reference to the figures and examples.
Example 1
Referring to fig. 1 to 3, a novel oil control valve includes a coil assembly 1, a valve body 11, a guide cap 6, a plunger 4, and a stator 9.
The outside of coil assembly 1 is equipped with yoke casing 2, and the bottom of yoke casing 2 is connected with the top of valve body 11.
The valve core shaft 13 is connected in the cavity of the valve body 11 in a sliding manner, the check ring 10 is connected to the bottom of the cavity of the valve body 11, and the spring 14 is arranged between the valve core shaft 13 and the check ring 10.
The guide cap 6 is fixed in the cavity of the coil assembly 1, and the opening of the guide cap 6 faces the spool shaft 13.
The stator 9 is positioned at an opening of an inner cavity of the guide cap 6, a flanging part 16 extending out of the guide cap 6 is arranged at the outer edge of the stator 9, and the flanging part 16 is fixed between the coil assembly 1 and the valve body 11 in an extruding manner.
The plunger 4 is positioned in the guide cap 6, a plurality of ball grooves 12 which are arranged along the axial direction of the plunger 4 are arranged on the outer peripheral surface of the plunger 4, balls 3 are arranged in the ball grooves 12, and rolling friction is formed between the plunger 4 and the guide cap 6 through the balls 3.
The bottom of the plunger 4 is connected with a shaft body 5, the bottom surface of the shaft body 5 is contacted with the top surface of the valve core shaft 13, and a movable gap is reserved between the shaft body 5 and the stator 9.
The working principle is as follows: the coil assembly 1 and the stator 9 form an electromagnet structure, when the coil assembly 1 is connected with current, magnetism for attracting the plunger 4 to move downwards is generated, and when the plunger 4 is attracted by the magnetism to move downwards, the valve core shaft 13 is pushed to move through the shaft body 5, so that a flow channel for connecting the valve body 11 with the valve core shaft 13 is changed, and the flow of engine oil is controlled.
When the coil assembly 1 is disconnected from the current, the magnetism of the electromagnet disappears, and the valve core shaft 13 is pushed to reset under the action of the spring 14.
According to the utility model, rolling friction is formed between the plunger 4 and the guide cap 6 through the balls 3, compared with the structure resistance of the contact friction between the plunger 4 and the guide cap 6, the structure resistance is smaller, and meanwhile, a movable gap is reserved on the periphery of the shaft body 5 and is not contacted by any object, so that the response speed of the oil control valve is faster and more accurate;
the rolling friction structure avoids abrasion caused by direct contact of the plunger 4 and the guide cap 6, so that the problem that the plunger 4 and the valve core shaft 13 are not aligned due to abrasion is solved, the axial movement of the plunger 4 is smoother, and meanwhile, the service life of the utility model is greatly prolonged due to the rolling friction structure design.
In addition, the ball 3 is added between the plunger 4 and the guide cap 6, so that an annular space is formed between the plunger 4 and the guide cap 6, when the plunger 4 moves, the air or oil at the front end and the rear end of the plunger 4 are communicated by using the annular space, pressure building generated when the plunger 4 moves back and forth is avoided, and the response speed of the utility model is further improved.
Example 2
The embodiment is further optimized on the basis of embodiment 1, and specifically comprises the following steps:
the inner wall bottom fixedly connected with cage 8 of stator 9, axis body 5 pass the hole of cage 8 to leave the clearance between the outer wall of the inner wall of cage 8 and axis body 5.
The valve core shaft 13 can be limited through the isolation ring 8, and the valve core shaft 13 is prevented from pressing the shaft body 5 and the plunger 4 under the action of the spring 14.
The inner wall middle part of stator 9 is equipped with spacing arch 15, carries on spacingly when spacing arch 15 is to plunger 4 axial displacement, when preventing that plunger 4 from receiving magnetic attraction, transition compression spring 14 produces the damage to spring 14.
Example 3
The embodiment is further optimized on the basis of embodiment 1, and specifically comprises the following steps:
rubber rings 7 are respectively padded between the flanging part 16 and the coil assembly 1 and the valve body 11.
The sealing performance of the connection of all parts can be improved by adding the rubber ring 7, and the looseness of the coil assembly 1 and the fixed flanging part 16 of the valve body 11 is prevented.
In addition, the guide cap 6 can also be fixed in the cavity of the coil assembly 1 by increasing the folding edge by using the coil assembly 1 and the valve body 11 to extrude the folding edge.
The present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention, and the contents of the changes still fall within the scope of the present invention.
Claims (5)
1. The utility model provides a novel engine oil control valve, includes coil assembly, valve body, direction cap, plunger and stator, the outside of coil assembly is equipped with the yoke casing, the bottom of yoke casing is connected with the top of valve body, the intracavity of valve body is equipped with case axle, its characterized in that:
the guide cap is fixed in a cavity of the coil assembly, an opening of the guide cap faces the valve core shaft, the stator is located at the opening of the cavity of the guide cap, a flanging part extending out of the guide cap is arranged on the outer edge of the stator, and the flanging part is fixed between the coil assembly and the valve body in an extruding mode;
the plunger is positioned in the guide cap, a plurality of ball grooves which are axially formed along the plunger are formed in the peripheral surface of the plunger, balls are arranged in the ball grooves, and rolling friction is formed between the plunger and the guide cap through the balls;
the bottom of the plunger is connected with a shaft body, the bottom surface of the shaft body is in contact with the top surface of the valve core shaft, and a movable gap is reserved between the shaft body and the stator.
2. The novel engine oil control valve of claim 1, wherein: the bottom of the inner wall of the stator is fixedly connected with an isolation ring used for axially limiting the valve core shaft, the shaft body penetrates through an inner hole of the isolation ring, and a movable gap is reserved between the inner wall of the isolation ring and the outer wall of the shaft body.
3. The novel engine oil control valve of claim 1, wherein: and the middle part of the inner wall of the stator is provided with a limiting bulge for axially limiting the plunger.
4. The novel engine oil control valve of claim 1, wherein: the valve is characterized in that a check ring is connected to the bottom of the cavity of the valve body, the valve core shaft is connected to the cavity of the valve body in a sliding mode, and a spring is arranged between the valve core shaft and the check ring.
5. The novel engine oil control valve of claim 1, wherein: and rubber rings are padded between the flanging parts and the coil assembly and between the flanging parts and the valve body respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122309935.6U CN215596472U (en) | 2021-09-24 | 2021-09-24 | Novel engine oil control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122309935.6U CN215596472U (en) | 2021-09-24 | 2021-09-24 | Novel engine oil control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215596472U true CN215596472U (en) | 2022-01-21 |
Family
ID=79887013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122309935.6U Active CN215596472U (en) | 2021-09-24 | 2021-09-24 | Novel engine oil control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215596472U (en) |
-
2021
- 2021-09-24 CN CN202122309935.6U patent/CN215596472U/en active Active
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