CN213629056U - Fuel electromagnetic valve with one-way function - Google Patents
Fuel electromagnetic valve with one-way function Download PDFInfo
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- CN213629056U CN213629056U CN202021474318.0U CN202021474318U CN213629056U CN 213629056 U CN213629056 U CN 213629056U CN 202021474318 U CN202021474318 U CN 202021474318U CN 213629056 U CN213629056 U CN 213629056U
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Abstract
The utility model discloses a take one-way function's fuel solenoid valve, including the fuel solenoid valve body, there is one-way valve at the export mouthpiece internally mounted of fuel solenoid valve body, one-way valve includes one-way disk seat, check valve core and one-way reset spring, one-way disk seat is installed in the one end that the export mouthpiece is close to fuel solenoid valve oil outlet, the slide of check valve core sets up inside the export mouthpiece, it contacts and will export mouthpiece inner channel with one-way disk seat and cuts, one-way reset spring is located one side that check valve core kept away from one-way disk seat, its both ends respectively with check valve core and export mouthpiece inner wall butt. The utility model discloses in, when the check valve that oil-out department set up can guarantee that fuel solenoid valve exit pressure surging, can not have the fuel from export mouthpiece to the valve pocket backward flow of fuel solenoid valve, guaranteed the stability of fuel solenoid valve work.
Description
Technical Field
The utility model relates to the technical field of valves, concretely relates to take fuel solenoid valve of one-way function.
Background
The fuel system belongs to the important system composition of the automobile, and provides fuel required by the automobile according to rules to ensure the normal operation of the automobile. The fuel electromagnetic valve belongs to a control element of a fuel system and is used for controlling the flow direction of fuel in the fuel system. In order to prevent the backflow of fuel caused by the pressure fluctuation at the outlet of the fuel solenoid valve, a check valve is connected to a pipeline connected with the oil outlet of the fuel solenoid valve. The mode of connecting the fuel electromagnetic valve and the one-way valve through the pipeline increases the leakage point of the fuel system and is not beneficial to ensuring the stability of the fuel system.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: provides a fuel electromagnetic valve with one-way function, solves
The utility model adopts the technical scheme as follows:
the utility model provides a take fuel solenoid valve of one-way function, includes the fuel solenoid valve body the export mouthpiece internally mounted of fuel solenoid valve body has check valve, check valve includes one-way disk seat, check valve core and one-way reset spring, the one-way disk seat is installed in the one end that the export mouthpiece is close to the fuel solenoid valve oil drain, the check valve core slides and sets up inside the export mouthpiece, and the one end that is close to the check valve seat on it contacts with one-way disk seat and cuts export mouthpiece inner channel, one-way reset spring is located one side that one-way disk seat was kept away from to one-way valve core, and its both ends respectively with check valve core and export mouthpiece inner wall butt, and to one-way reset spring promotion check valve core make its and one-way disk seat break.
Furthermore, the one-way valve core is hollow, one end of the one-way valve core, which is close to the one-way return spring, is communicated with the internal channel of the outlet nozzle, and one side of the side wall of the one-way valve core, which is close to the one-way valve seat, is provided with a connecting pore passage which is communicated with the hollow of the one-way valve core and the internal channel of the outlet nozzle.
Furthermore, the four connecting pore passages are distributed along the axis center of the one-way valve core in a symmetrical mode.
Furthermore, a spring mounting hole is formed in one side, close to the one-way return spring, of the hollow of the one-way valve core, an abutting hole is formed in the inner channel of the outlet nozzle, and two ends of the one-way return spring are located in the spring mounting hole and the abutting hole respectively and are in contact with the spring mounting hole and the bottom of the abutting hole respectively.
Further, the one-way return spring is a cylindrical helical compression spring.
Furthermore, the fuel electromagnetic valve body comprises a valve casing, a main valve core and a valve core driving assembly, wherein the valve casing is internally provided with a valve cavity, the main valve core is arranged in the valve cavity in a sliding mode, the valve core driving assembly is positioned at the top of the main valve core and used for controlling a station where the main valve core is positioned, an oil inlet channel and an oil outlet channel are respectively arranged at two ends of the bottom of the valve cavity, an inlet pipe nozzle is installed in the oil inlet channel, and an outlet pipe;
when the main valve core contacts with the bottom of the valve cavity, the fuel electromagnetic valve body is in an open circuit state.
Furthermore, the valve core driving assembly comprises an electromagnet assembly, a supporting shell assembly for supporting the electromagnet assembly above the main valve core, and an armature assembly which is arranged in the supporting shell assembly in a sliding mode and located between the electromagnet assembly and the main valve core, wherein one side, far away from the electromagnet assembly, of the armature assembly is connected with the main valve core, a main return spring is sleeved on the armature assembly, two ends of the main return spring are respectively abutted against the supporting shell assembly and the upper side of the main valve core, the electromagnet assembly is electrified to enable the armature assembly to move upwards and compress the main return spring, and the main valve core can move upwards to enable the oil inlet channel and the oil outlet channel to be communicated.
Due to the adoption of the technical scheme, the beneficial effects of the utility model are that:
1. the utility model relates to a take fuel solenoid valve of one-way function, when the main valve core of fuel solenoid valve is the initial position with the inside disconnection of fuel solenoid valve, the check valve that the oil-out department set up can guarantee that fuel solenoid valve exit pressure fluctuates, can not have the fuel from the exit mouthpiece to the valve pocket backward flow of fuel solenoid valve, guaranteed the stability of fuel solenoid valve work;
2. the utility model relates to a take fuel solenoid valve of one-way function, the required one-way function in fuel solenoid valve exit is located inside it, can make fuel system not take external check valve to make product compact structure, simple to operate, the leak source that reduces the pipeline, system more succinct.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described below, it should be understood that the proportional relationship of each component in the drawings in this specification does not represent the proportional relationship in the actual material selection design, and it is only a schematic diagram of the structure or the position, in which:
fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of the present invention in the open state;
fig. 3 is a structural schematic view of the check shutter.
Reference numerals in the drawings indicate:
1-inlet nozzle, 2-valve housing, 3-main return spring, 4-armature component, 5-electromagnet component, 6-plug, 7-one-way valve core, 8-outlet nozzle, 9-one-way return spring, 10-one-way valve seat, 11-oil outlet channel, 12-connecting pore channel, 13-spring mounting hole, 14-butting hole, 15-oil inlet channel, 16-valve cavity and 17-supporting housing component.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention.
The present invention will be described in detail with reference to fig. 1 to 3.
Example 1
As shown in fig. 1-3, the fuel solenoid valve with one-way function of the present invention comprises a fuel solenoid valve body, a one-way valve is arranged in an outlet nozzle 8 of the fuel electromagnetic valve body, the one-way valve comprises a one-way valve seat 10, a one-way valve core 7 and a one-way return spring 9, the one-way valve seat 10 is arranged at one end of the outlet nozzle 8 close to the oil outlet channel 11 of the fuel electromagnetic valve, the one-way valve core 7 is arranged inside the outlet nozzle 8 in a sliding way, one end of the one-way return spring 9 close to the one-way valve seat 10 is contacted with the one-way valve seat 10 and cuts off the internal channel of the outlet nozzle 8, the one-way return spring is positioned at one side of the one-way valve core 7 far away from the one-way valve seat 10, two ends of the one-way valve core are respectively abutted against the inner walls of the one-way valve core 7 and the outlet nozzle 8, and the one-way valve core 7 is pushed towards the one-way return spring 9 to be separated from the one-way valve seat 10 so as to enable the internal channel of the outlet nozzle 8 to be in a passage state.
The utility model discloses in, the butt is for supporting the tight contact.
When the main spool of the fuel solenoid valve moves to make the inside of the fuel solenoid valve in a passage state, pressure oil enters the inside of the check valve seat 10 through the oil outlet passage 11 of the fuel solenoid valve, thereby pushing the check valve spool 7 to move toward the check return spring 9 to make the check valve spool 7 separate from the contact with the check valve seat 10, thereby making the inside passage of the outlet nozzle 8 in a passage state.
When the main valve core of the fuel electromagnetic valve returns to the initial position to enable the interior of the fuel electromagnetic valve to be in a circuit breaking state, the end part of the one-way valve core 7 is not pushed by pressure oil and returns to the original position under the restoring force of the one-way return spring 9, namely, one end of the one-way valve seat 10 is in contact with the one-way valve seat 10 and cuts off the internal channel of the outlet nozzle 8.
The condition of the one-way valve in the passage is that a pressure difference exists between the left end pressure and the right end pressure, and the pressure difference is preferably 40KP main return spring, namely the pressure at the left end is 40KP greater than the pressure at the right end.
When the main valve core of the fuel electromagnetic valve is in an initial position to disconnect the interior of the fuel electromagnetic valve, the one-way valve arranged at the oil outlet can ensure that fuel does not flow back to the valve cavity of the fuel electromagnetic valve from the outlet nozzle when the pressure at the outlet of the fuel electromagnetic valve fluctuates, and the working stability of the fuel electromagnetic valve is ensured.
Meanwhile, the one-way function required at the outlet of the fuel electromagnetic valve is positioned in the fuel electromagnetic valve, so that the fuel system is free from an external one-way valve, the product structure is compact, the installation is convenient, the leakage point of a pipeline is reduced, and the system is simpler.
Example 2
The structure of the passages of the oil passages on the left and right sides of the check valve in embodiment 1 will be described.
As shown in fig. 3, in the present invention, the one-way valve element 7 is hollow, the one end of the one-way valve element, which is close to the one-way return spring 9, is communicated with the internal channel of the outlet nozzle 8, and the one side of the side wall of the one-way valve element, which is close to the one-way valve seat 10, is provided with a connecting hole 12, and the connecting hole 12 communicates the hollow of the one-way valve element 7 with the internal channel of the.
Further, the four connecting ports 12 are arranged symmetrically about the axis of the check valve body 7.
Example 3
The second description is made of the passage structure of the oil passages on the left and right sides of the check valve in embodiment 1.
A plurality of groove bodies extending along the axial line of the one-way valve core 7 can be arranged on the side wall of the one-way valve core, and when the one-way valve core is separated from the one-way valve seat, pressure oil in the oil outlet channel moves to the tail end of the outlet nozzle through the groove bodies.
The specific implementation of the passage structure of the oil passages on the left and right sides of the check valve is not limited, and the oil passages on the left and right sides of the check valve can be communicated only when the check valve core is separated from the check valve seat.
Example 4
The specific installation of the one-way return spring 9 is as follows: a spring mounting hole 13 is formed in one side, close to the one-way return spring 9, of the hollow of the one-way valve core 7, an abutting hole 14 is formed in the inner channel of the outlet nozzle 8, and two ends of the one-way return spring 9 are located in the spring mounting hole 13 and the abutting hole 14 respectively and are in contact with the bottoms of the spring mounting hole 13 and the abutting hole 14 respectively.
Further, the one-way return spring 9 is a cylindrical helical compression spring.
Example 4
The specific implementation structure of the fuel electromagnetic valve body is as follows: the fuel electromagnetic valve body comprises a valve casing 2, a main valve core and a valve core driving assembly, wherein the valve casing 2 is internally provided with a valve cavity 16, the main valve core is arranged in the valve cavity 16 in a sliding mode, the valve core driving assembly is positioned at the top of the main valve core and used for controlling a station where the main valve core is positioned, an oil inlet channel 15 and an oil outlet channel 11 are respectively arranged at two ends of the bottom of the valve cavity 16, an inlet nozzle 1 is installed in the oil inlet channel 15, and an outlet nozzle 8;
when the main spool contacts the bottom of the valve chamber 16, the fuel solenoid valve body is in an open circuit state.
Further, the valve core driving assembly comprises an electromagnet assembly 5, a supporting shell assembly 17 for supporting the electromagnet assembly 5 above the main valve core, and an armature assembly 4 which is arranged inside the supporting shell assembly 17 in a sliding mode and located between the electromagnet assembly 5 and the main valve core, wherein one side, far away from the electromagnet assembly 5, of the armature assembly 4 is connected with the main valve core, a main return spring 3 is sleeved on the armature assembly 4, two ends of the main return spring 3 are respectively abutted to the supporting shell assembly 17 and the upper side of the main valve core, the electromagnet assembly 5 is electrified to enable the armature assembly 4 to move upwards and compress the main return spring 3, and the main valve core can move upwards to enable the oil inlet channel 15 to be communicated with the oil outlet channel 11.
The fuel electromagnetic valve body is in a circuit-breaking state, namely the sealing of the main valve core is realized by the pretightening force of the main return spring 3 and the thrust generated by the inlet pressure of the fuel electromagnetic valve body, and the inlet pressure is smaller than the pretightening force of the main return spring 3, so that the main valve core is always in a circuit-breaking station.
When the electromagnet assembly 5 is electrified, the armature assembly 4 overcomes the pretightening force of the main return spring 3 and the thrust generated by the inlet pressure under the action of the electromagnetic force, the main valve core is moved upwards, so that a passage is formed in the fuel electromagnetic valve, then the pressure oil at the inlet reaches the one-way valve, overcomes the one-way return spring 9, opens the one-way valve, and the fluid reaches the outlet.
For ease of assembly, the outlet and inlet centerlines of the fuel solenoid valve coincide.
The utility model discloses there are two kinds of operating condition mainly:
the first state: when the electromagnet assembly 5 is de-energized, as shown in fig. 1, the passage between the inlet and the outlet of the fuel solenoid valve is broken;
and a second state: when the power is on, as shown in figure 2, the fluid sequentially passes through the interior of the fuel solenoid valve body and the one-way valve to reach the outlet, and a passage is formed between the inlet and the outlet of the fuel solenoid valve.
Fig. 1 is a schematic diagram of the state of the utility model in power-off, in which the left end is an inlet and the right end is an outlet, the main valve core of the fuel electromagnetic valve is a reverse sealing structure, and under the condition that the strength of the part at the sealing position is satisfied, the higher the inlet pressure is, the larger the pretightening force of the main reset spring is, and the better the sealing effect is; when the power is cut off, the armature component 4 moves downwards and contacts the bottom of the valve cavity under the combined action of the pretightening force of the main return spring 3 and the thrust generated by the inlet pressure, specifically, a seal is formed on a sealing lip positioned in the valve cavity, and the passage of the fuel electromagnetic valve is cut off.
Fig. 2 is the state schematic diagram of the utility model discloses during the circular telegram, armature subassembly 4 has overcome main reset spring 3's pretightning force and the thrust that inlet pressure produced under the effect of electromagnetic force this moment, opens main valve core and forms the route, then the inlet fluid reachs check valve department, overcomes check valve reset spring 9 and opens check valve, and the fluid reachs the export.
The working pressure refers to that when the power is on, the electromagnetic force generated by the electromagnet assembly overcomes the fuel pressure at the reverse sealing end. The utility model discloses the accessible has increased electromagnetic winding's line footpath in order to improve the electromagnetic force, improves operating pressure to 1.2MPa from 0.4MPa then.
Claims (7)
1. The utility model provides a take one-way function's fuel solenoid valve, includes the fuel solenoid valve body, its characterized in that: a one-way valve is arranged in an outlet nozzle (8) of the fuel electromagnetic valve body, the one-way valve comprises a one-way valve seat (10), a one-way valve core (7) and a one-way return spring (9), the one-way valve seat (10) is arranged at one end of the outlet nozzle (8) close to the oil outlet channel (11) of the fuel electromagnetic valve, the one-way valve core (7) is arranged in the outlet nozzle (8) in a sliding way, one end of the upper part of the valve body, which is close to the one-way valve seat (10), is contacted with the one-way valve seat (10) and cuts off the internal channel of the outlet nozzle (8), the one-way return spring (9) is positioned on one side of the one-way valve core (7) far away from the one-way valve seat (10), the two ends of the valve body are respectively abutted against the inner walls of the one-way valve core (7) and the outlet pipe nozzle (8), and the one-way valve core (7) is pushed to the one-way return spring (9) to be separated from the one-way valve seat (10) to be contacted, so that the internal channel of the outlet nozzle (8) is in a passage state.
2. The fuel electromagnetic valve with the one-way function according to claim 1, characterized in that: the one-way valve core (7) is hollow, one end of the one-way valve core, close to the one-way return spring (9), is communicated with an internal channel of the outlet nozzle (8), one side of the side wall of the one-way valve core, close to the one-way valve seat (10), is provided with a connecting pore channel (12), and the hollow of the one-way valve core (7) is communicated with the internal channel of the outlet nozzle (8) through the connecting pore channel (12).
3. The fuel electromagnetic valve with the one-way function according to claim 2, characterized in that: the four connecting pore passages (12) are distributed along the axis center of the one-way valve core (7) symmetrically.
4. The fuel electromagnetic valve with the one-way function according to claim 2, characterized in that: a spring mounting hole (13) is formed in one side, close to the one-way return spring (9), of the hollow portion of the one-way valve core (7), an abutting hole (14) is formed in an internal channel of the outlet nozzle (8), two ends of the one-way return spring (9) are located in the spring mounting hole (13) and the abutting hole (14) respectively, and are in contact with the bottoms of the spring mounting hole (13) and the abutting hole (14) respectively.
5. The fuel electromagnetic valve with the one-way function according to any one of claims 1 to 4, characterized in that: the one-way return spring (9) is a cylindrical spiral compression spring.
6. The fuel electromagnetic valve with the one-way function according to claim 1, characterized in that: the fuel electromagnetic valve body comprises a valve casing (2) internally provided with a valve cavity (16), a main valve core arranged in the valve cavity (16) in a sliding mode and a valve core driving assembly located at the top of the main valve core and used for controlling a station where the main valve core is located, an oil inlet channel (15) and an oil outlet channel (11) are respectively arranged at two ends of the bottom of the valve cavity (16), an inlet pipe nozzle (1) is installed in the oil inlet channel (15), and an outlet pipe nozzle (8) is installed in the oil outlet channel (11);
when the main valve core contacts with the bottom of the valve cavity (16), the fuel electromagnetic valve body is in an open circuit state.
7. The fuel electromagnetic valve with the one-way function according to claim 6, characterized in that: the valve core driving assembly comprises an electromagnet assembly (5), a supporting shell assembly (17) supporting the electromagnet assembly (5) above the main valve core, and an armature assembly (4) arranged inside the supporting shell assembly (17) in a sliding mode and located between the electromagnet assembly (5) and the main valve core, wherein one side, far away from the electromagnet assembly (5), of the armature assembly (4) is connected with the main valve core, a main reset spring (3) is sleeved on the armature assembly (4), two ends of the main reset spring (3) are respectively abutted to the supporting shell assembly (17) and the upper side of the main valve core, the electromagnet assembly (5) is electrified to enable the armature assembly (4) to move upwards and compress the main reset spring (3), and the main valve core can move upwards to enable an oil inlet channel (15) and an oil outlet channel (11) to be communicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021474318.0U CN213629056U (en) | 2020-07-23 | 2020-07-23 | Fuel electromagnetic valve with one-way function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021474318.0U CN213629056U (en) | 2020-07-23 | 2020-07-23 | Fuel electromagnetic valve with one-way function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213629056U true CN213629056U (en) | 2021-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021474318.0U Active CN213629056U (en) | 2020-07-23 | 2020-07-23 | Fuel electromagnetic valve with one-way function |
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| Country | Link |
|---|---|
| CN (1) | CN213629056U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023002459A1 (en) * | 2021-07-23 | 2023-01-26 | Rotex Automation Limited | A two-port solenoid valve with an integrated non-return valve (nrv) or check valve |
-
2020
- 2020-07-23 CN CN202021474318.0U patent/CN213629056U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023002459A1 (en) * | 2021-07-23 | 2023-01-26 | Rotex Automation Limited | A two-port solenoid valve with an integrated non-return valve (nrv) or check valve |
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