CN217652850U - Integrated isobaric oil outlet valve and electric control pump - Google Patents
Integrated isobaric oil outlet valve and electric control pump Download PDFInfo
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- CN217652850U CN217652850U CN202221231753.XU CN202221231753U CN217652850U CN 217652850 U CN217652850 U CN 217652850U CN 202221231753 U CN202221231753 U CN 202221231753U CN 217652850 U CN217652850 U CN 217652850U
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Abstract
An integrated isobaric oil outlet valve comprises an oil outlet valve base, wherein a first oil outlet valve inner cavity is formed in the oil outlet valve base, an oil outlet valve joint is fixedly installed in the first oil outlet valve inner cavity, and a second oil outlet valve inner cavity is formed in the oil outlet valve joint; the mounting cavity is internally provided with a damping valve component and an oil outlet valve component, wherein the bottom end of the damping valve component is abutted against the inner cavity of the first oil outlet valve, the top end of the damping valve component is abutted against the oil outlet valve component, and the top end of the oil outlet valve component is abutted against the inner cavity of the second oil outlet valve; an oil return valve inner cavity is arranged in the oil outlet valve component, and the top end of the damping valve component is positioned in the oil return valve inner cavity and is abutted against the oil outlet valve component; the top end of the damping valve component is of a conical structure, and conical surface sealing is formed between the top end of the damping valve component and an inner cavity of the oil return valve. The utility model discloses can be integrated as a passageway with high-pressure oil feed, oil return binary channels, reduce the quantity in oil duct hole, reduce the processing degree of difficulty and structure complexity. Simultaneously, still disclose an automatically controlled pump.
Description
Technical Field
The utility model relates to an oil outlet valve technical field especially relates to an isobaric oil outlet valve of integral type and automatically controlled pump.
Background
With the improvement of the national emission regulation requirements and the research and development of high-power and high-rotating-speed diesel engines, the requirements of diesel engine production enterprises on the working capacity of high-pressure oil pumps are also improved. The working capacity of the high-pressure oil pump is mainly reflected on indexes such as circulating oil supply quantity, oil supply rate, pump end pressure and the like. The constant pressure valve can effectively prevent secondary injection and bubbles, and has good strain capacity for working under variable speed and variable load. Under a fixed working condition, the constant pressure valve can keep relative stability for each circulation oil supply starting point and oil supply quantity. The appearance of high-speed and high-power diesel engines also puts higher requirements on the performance and reliability of isobaric valves.
The existing isobaric oil outlet valve structure comprises a valve body, a spring, a sealing ring, a valve core, transition blocks, a spring, a valve core and the like, and has double channels of high-pressure oil inlet and oil return, relatively complex machining, a plurality of transition blocks, complex structure and high machining precision requirement.
SUMMERY OF THE UTILITY MODEL
In view of this, the first technical problem to be solved by the present invention is: the utility model provides an isobaric delivery valve of integral type can be integrated into a passageway with high-pressure oil feed, oil return binary channels, reduces the quantity in oil duct hole, reduces the processing degree of difficulty and structure complexity, reduce cost.
Based on a general inventive concept, the second technical problem to be solved by the present invention is: the utility model provides an adopt the utility model discloses an isobaric delivery valve's of integral type automatically controlled pump can improve automatically controlled pump diesel engine startability, improves diesel engine part load operating mode pump end pressure, improves combustion performance, reduces part load fuel consumption rate.
For solving the first technical problem, the technical scheme of the utility model is that:
an integrated isobaric oil outlet valve comprises an oil outlet valve base, wherein a first oil outlet valve inner cavity is formed in the oil outlet valve base, the first oil outlet valve inner cavity is connected and communicated with a first oil channel hole, an oil outlet valve joint is fixedly installed in the first oil outlet valve inner cavity, a second oil outlet valve inner cavity is formed in the oil outlet valve joint, the second oil outlet valve inner cavity is connected and communicated with a second oil channel hole, and when the first oil outlet valve inner cavity is fixedly connected with the oil outlet valve joint, the first oil outlet valve inner cavity and the second oil outlet valve inner cavity form a finished installation cavity and are connected and communicated with the outside through the first oil channel hole and the second oil channel hole;
a damping valve component and an oil outlet valve component are arranged in the mounting cavity, wherein,
the bottom end of the damping valve component is abutted with the inner cavity of the first oil outlet valve, the top end of the damping valve component is abutted with the oil outlet valve component, and the top end of the oil outlet valve component is abutted with the inner cavity of the second oil outlet valve;
a first sealing surface is arranged in the inner cavity of the first oil outlet valve and is abutted against the bottom of the oil outlet valve component;
an oil return valve inner cavity is formed in the oil outlet valve assembly, and the top end of the damping valve assembly is located in the oil return valve inner cavity and is abutted to the oil outlet valve assembly;
the top end of the damping valve component is of a conical structure, a second sealing surface of the conical structure matched with the damping valve component is arranged in the inner cavity of the oil return valve, and conical surface sealing is formed between the top end of the damping valve component and the inner cavity of the oil return valve in an oil outlet state.
Preferably, the damping valve assembly comprises a damping spring abutted with the oil outlet valve base and a damping valve core abutted with the damping spring, and a sealing part with a conical structure is arranged on the damping valve core;
the oil outlet valve assembly comprises an oil outlet spring abutted with the oil outlet valve joint and an oil outlet valve core abutted with the oil outlet spring, and the oil outlet valve core is provided with an inner cavity of the oil return valve;
and under the oil outlet state, a conical surface seal is formed between the sealing part and the inner cavity of the oil return valve.
Preferably, the bottom end of the oil outlet valve core abuts against the first sealing surface, and in an oil return state, a plane seal is formed between the oil outlet valve core and the first sealing surface.
Preferably, a third oil passage hole is formed in the oil outlet valve core, and the oil return valve inner cavity and the second oil outlet valve inner cavity are connected and communicated through the third oil passage hole.
Preferably, the outer wall of the damping valve core is convexly provided with a first annular boss, and a plurality of first oil guide grooves are distributed on the first annular boss in the circumferential direction at equal intervals.
Preferably, a space exists between the first annular boss and the inner cavity of the oil return valve to form a buffer oil cavity.
Preferably, a second annular boss is convexly arranged on the outer wall of the oil outlet valve core, and a plurality of second oil guide grooves are circumferentially and equidistantly distributed on the second annular boss.
Preferably, the top end of the oil outlet spring abuts against the oil outlet valve joint, and the bottom end of the oil outlet spring abuts against the second annular boss.
Preferably, a sealing ring is arranged between the oil outlet valve base and the oil outlet valve joint.
In order to solve the second technical problem, the technical solution of the present invention is:
the utility model provides an electric control pump, includes the electric control pump body, be provided with the plunger bushing on the electric control pump body, demountable installation has foretell integral type isobaric delivery valve on the plunger bushing.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
because the utility model provides an isobaric delivery valve of integral type, including the delivery valve base, be provided with first delivery valve inner chamber on the delivery valve base, fixed mounting has delivery valve joint in the first delivery valve inner chamber, be provided with second delivery valve inner chamber on the delivery valve joint, when first delivery valve inner chamber and delivery valve joint fixed connection, first delivery valve inner chamber forms a complete installation cavity with second delivery valve inner chamber, and through first oil duct hole, second oil duct hole is connected with the external world and is had a perfect understanding, external high-pressure fuel can get into the inside of installation cavity through first oil duct hole, and discharge through second oil duct hole, accomplish the action of producing oil, after the action of producing oil, the fuel is through second oil duct hole, the installation cavity, the backward flow of first oil duct hole, accomplish the action of returning oil.
The oil outlet valve assembly comprises an installation cavity, a damping valve assembly and an oil outlet valve assembly, wherein the damping valve assembly and the oil outlet valve assembly are arranged in the installation cavity, oil return action and oil outlet action are respectively realized in one cavity, the original mode that two channels are adopted for respectively acting is changed, the processing difficulty and the structural complexity are reduced, a first sealing surface is arranged in an inner cavity of the first oil outlet valve and is abutted against the bottom of the oil outlet valve assembly, and under the oil return state, the oil outlet valve assembly is matched with the first sealing surface to realize sealing of the outer side of the oil outlet valve assembly and prevent oil return; be provided with the oil return valve inner chamber in the valve subassembly that produces oil, the top of damping valve subassembly is arranged in the oil return valve inner chamber and with the butt of the valve subassembly that produces oil, preferably, the top of damping valve subassembly is the toper structure, be provided with the second sealed face of toper structure with the cooperation of damping valve subassembly use in the oil return valve inner chamber, under the state of producing oil, form the conical surface between the top of damping valve subassembly and the oil return valve inner chamber and seal, under the state of producing oil, seal between damping valve subassembly top and the oil return valve inner chamber that the conical surface is sealed, the bottom and the first sealed face separation of the valve subassembly that produces oil, realize going on oil through the both sides of the valve subassembly that produces oil, therefore, realize carrying on oil return action and oil outlet action respectively in a cavity.
Because the utility model provides an electric control pump, including the electric control pump body, be provided with the plunger bushing on the electric control pump body, demountable installation has the isobaric delivery valve of integral type on the plunger bushing, can improve electric control pump diesel engine startability, improves diesel engine part load operating mode pump end pressure, improves combustion performance, reduces part load fuel consumption rate.
To sum up, the utility model discloses an isobaric delivery valve of integral type can be integrated as a passageway with high-pressure oil feed, oil return binary channels, reduces the quantity in oil duct hole, reduces the processing degree of difficulty and structure complexity, reduce cost. Simultaneously, still disclose an electronic control pump that adopts isobaric delivery valve of integral type, can improve electronic control pump diesel engine startability, improve combustion performance, reduce part load fuel consumption rate.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a schematic structural view of the oil outlet spool of FIG. 1;
FIG. 3 is a schematic diagram of the damper spool of FIG. 1;
fig. 4 is a schematic structural diagram of an oil outlet state according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an embodiment of the present invention in an oil return state;
fig. 6 is a schematic structural diagram of a second embodiment of the present invention;
in the figure:
1. an oil outlet valve base; 11. the inner cavity of the first oil outlet valve; 12. a first oil passage hole; 13. a first sealing surface;
2. an oil outlet valve joint; 21. the inner cavity of the second oil outlet valve; 22. a second oil passage hole;
3. a mounting cavity;
4. a damper valve assembly; 41. a damping spring; 42. a damper spool; 421. a sealing part; 422. a first annular boss; 423. a first oil guide groove; 424. a buffer oil cavity;
5. an oil outlet valve assembly; 51. an oil outlet spring; 52. an oil outlet valve core; 521. an inner cavity of the oil return valve; 522. a second sealing surface; 523. a third oil passage hole; 524. a second annular boss; 525. a second oil guide groove;
6. a seal ring;
7. an electrically controlled pump body; 71. and a plunger sleeve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail 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.
The first embodiment is as follows:
as shown in fig. 1 to 5, the utility model discloses an oil outlet valve base 1, be provided with first oil outlet valve inner chamber 11 on the oil outlet valve base 1, first oil outlet valve inner chamber 11 is connected with first oil duct hole 12 and is link up, fixed mounting has oil outlet valve joint 2 in the first oil outlet valve inner chamber 11, be provided with second oil outlet valve inner chamber 21 on the oil outlet valve joint 2, second oil outlet valve inner chamber 21 is connected with second oil duct hole 22 and is link up, when first oil outlet valve inner chamber 11 and oil outlet valve joint 2 fixed connection, first oil outlet valve inner chamber 11 forms the installation cavity 3 of one completion with second oil outlet valve inner chamber 21, and link up with the external world through first oil duct hole 12, second oil duct hole 22.
External high-pressure fuel oil can enter the mounting cavity 3 through the first oil passage hole 12 and is discharged through the second oil passage hole 22, oil outlet is completed, and after the oil outlet is completed, the fuel oil flows back through the second oil passage hole 22, the mounting cavity 3 and the first oil passage hole 12, and oil return is completed.
The utility model discloses in, be provided with damping valve subassembly 4 and delivery valve subassembly 5 in the installation cavity 3, wherein, damping valve subassembly 4's bottom and the 11 butts of first delivery valve inner chamber, damping valve subassembly 4's top and delivery valve subassembly 5 butts, delivery valve subassembly 5's top and the 21 butts of second delivery valve inner chamber.
A first sealing surface 13 is arranged in the first oil outlet valve inner cavity 11, and the first sealing surface 13 is abutted with the bottom of the oil outlet valve component 5.
During the oil outlet action, the fuel oil is discharged from the space between the bottom of the oil outlet valve assembly 5 and the first sealing surface 13, enters the outer side of the oil outlet valve assembly 5, and is discharged through the second oil passage hole 22, so that the oil outlet action is completed; when oil returns, the bottom of the oil outlet valve assembly 5 is sealed with the first sealing surface 13, and the oil return of fuel oil is blocked.
The oil outlet valve assembly 5 is provided with an oil return valve inner cavity 521, and the top end of the damping valve assembly 4 is positioned in the oil return valve inner cavity 521 and is abutted against the oil outlet valve assembly 5.
The top end of the damping valve assembly 4 is a conical structure, a second sealing surface 522 of the conical structure used in cooperation with the damping valve assembly 4 is arranged in the oil return valve inner cavity 521, and a conical surface seal is formed between the top end of the damping valve assembly 4 and the oil return valve inner cavity 521 in an oil outlet state.
When the oil outlet action is carried out, the damping valve component 4 with the conical surface seal and the oil return valve inner cavity 521 block the fuel, prevent the fuel from being discharged from the oil return valve inner cavity 521 through the inside of the oil outlet valve component 5, and limit the fuel to be discharged only between the bottom of the oil outlet valve component 5 and the first sealing surface 13; during oil return operation, due to the sealing between the bottom of the oil outlet valve assembly 5 and the first sealing surface 13, fuel oil return can only apply pressure to the damping valve assembly 4 with the conical surface sealed through the inside of the oil outlet valve assembly 5, so that the damping valve assembly 4 and the oil return valve inner cavity 521 are in an open state, and return oil enters the first oil passage hole 12 through two sides of the damping valve assembly 4 to finish oil return.
In one installation cavity 3, a damping valve component 4 and an oil outlet valve component 5 are arranged, so that oil outlet action and oil return action are respectively completed in one cavity, the original mode that oil outlet and oil return actions are respectively carried out by adopting double channels is changed, and the processing difficulty and the structural complexity are reduced; meanwhile, the number of high-pressure sealing surfaces is small, and high-pressure sealing is facilitated.
The damper valve assembly 4 includes a damper spring 41 abutting against the oil outlet valve base 1 and a damper valve body 42 abutting against the damper spring 41, and the damper valve body 42 is provided with a sealing portion 421 having a tapered structure.
The oil outlet valve assembly 5 includes an oil outlet spring 51 abutting on the oil outlet valve joint 2 and an oil outlet valve body 52 abutting on the oil outlet spring 51, and an oil return valve inner chamber 521 is provided on the oil outlet valve body 52.
The bottom end of the oil outlet valve body 52 abuts against the first sealing surface 13, and in the oil return state, a plane seal is formed between the oil outlet valve body 52 and the first sealing surface 13.
In an oil outlet state, a conical surface seal is formed between the sealing portion 421 and the oil return valve inner cavity 521, and meanwhile, the oil outlet valve core 52 is provided with a third oil passage hole 523, the third oil passage hole 523 connects and communicates the oil return valve inner cavity 521 with the second oil return valve inner cavity 21, so that during an oil return action, fuel can enter the oil return valve inner cavity 521 from the second oil return valve inner cavity 21 through the third oil passage hole 523.
Wherein, the outer wall epirelief of damping valve core 42 is equipped with first annular boss 422, and a plurality of first oil guide grooves 423 have been laid to circumference equidistance on first annular boss 422, and the oil return of being convenient for flows, improves oil return speed.
A gap exists between the first annular boss 422 and the oil return valve inner cavity 521 to form an oil relief cavity 424, and the oil return effect is improved.
A second annular boss 524 is convexly arranged on the outer wall of the oil outlet valve core 52, and a plurality of second oil guide grooves 525 are circumferentially and equidistantly distributed on the second annular boss 524.
The top end of the oil outlet spring 51 is abutted with the oil outlet valve joint 2, the bottom end of the oil outlet spring 51 is abutted with the second annular boss 524, the bottom end of the oil outlet valve core 52 is abutted with the first sealing surface 13 through the second annular boss 524 by the oil outlet spring 51, and in an oil return state, plane sealing is realized.
A sealing ring 6 is arranged between the oil outlet valve base 1 and the oil outlet valve joint 2, so that the sealing effect is improved.
The utility model discloses when using, the fuel gets into in the first oil outlet valve inner chamber 11 through first oil passage hole 12, overcome the pressure of oil outlet spring 51 to oil outlet valve core 52, separate between oil outlet valve core 52 and the first sealed face 13, the fuel gets into oil outlet valve core 52's periphery, and upward movement to in the second oil outlet valve inner chamber 21, discharge through second oil passage hole 22, after the oil outlet action is ended, pressure when among the high pressure fuel pipe equals damping valve subassembly 4's opening pressure, the fuel gets into in the second oil outlet valve inner chamber 21 through second oil passage hole 22, and push down to sealing portion 421 through third oil passage hole 523, sealing portion 421 and the separation of second sealed face 522, then arrive between sealing portion 421 and the second sealed face 522 and slow oil chamber 424, and in first oil outlet valve inner chamber 11 of leading 423 entering, the oil pressure that goes down to damping valve core 42 and prescribe a limit to the pressure, sealing portion 421 just forms the butt sealed conical surface with second sealed face 522, block in the fuel oil return to slow oil chamber 424.
The second embodiment:
as shown in fig. 6, the utility model also discloses an electric control pump, including electric control pump body 7, be provided with plunger bushing 71 on the electric control pump body 7, last demountable installation of plunger bushing 71 has the isobaric delivery valve of integral type in the above-mentioned embodiment.
Through demountable installation with the isobaric delivery valve of integral type on plunger bushing 71, preferred, demountable installation is threaded connection, and the isobaric delivery valve of integral type can improve automatically controlled pump diesel engine startability, improves diesel engine part load operating mode pump end pressure, improves combustion performance, reduces part load fuel consumption rate.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An integrated isobaric oil outlet valve comprises an oil outlet valve base, wherein a first oil outlet valve inner cavity is arranged on the oil outlet valve base, the first oil outlet valve inner cavity is connected and communicated with a first oil channel hole, an oil outlet valve joint is fixedly arranged in the first oil outlet valve inner cavity, a second oil outlet valve inner cavity is arranged on the oil outlet valve joint, the second oil outlet valve inner cavity is connected and communicated with a second oil channel hole, and when the first oil outlet valve inner cavity is fixedly connected with the oil outlet valve joint, the first oil outlet valve inner cavity and the second oil outlet valve inner cavity form a finished installation cavity and are connected and communicated with the outside through the first oil channel hole and the second oil channel hole; it is characterized in that the preparation method is characterized in that,
a damping valve component and an oil outlet valve component are arranged in the mounting cavity, wherein,
the bottom end of the damping valve assembly is abutted with the inner cavity of the first oil outlet valve, the top end of the damping valve assembly is abutted with the oil outlet valve assembly, and the top end of the oil outlet valve assembly is abutted with the inner cavity of the second oil outlet valve;
a first sealing surface is arranged in the inner cavity of the first oil outlet valve and is abutted against the bottom of the oil outlet valve component;
an oil return valve inner cavity is arranged in the oil outlet valve component, and the top end of the damping valve component is positioned in the oil return valve inner cavity and is abutted against the oil outlet valve component;
the top end of the damping valve component is of a conical structure, a second sealing surface of the conical structure matched with the damping valve component is arranged in the inner cavity of the oil return valve, and conical surface sealing is formed between the top end of the damping valve component and the inner cavity of the oil return valve in an oil outlet state.
2. The integrated isobaric delivery valve of claim 1,
the damping valve component comprises a damping spring abutted with the oil outlet valve base and a damping valve core abutted with the damping spring, and a sealing part of a conical structure is arranged on the damping valve core;
the oil outlet valve assembly comprises an oil outlet spring abutted with the oil outlet valve joint and an oil outlet valve core abutted with the oil outlet spring, and the oil outlet valve core is provided with an inner cavity of the oil return valve;
and under the oil outlet state, a conical surface seal is formed between the sealing part and the inner cavity of the oil return valve.
3. The integrated isobaric delivery valve according to claim 2, characterized in that the bottom end of the delivery spool is abutted with the first sealing surface, and in the oil return state, a plane seal is formed between the delivery spool and the first sealing surface.
4. The integrated isobaric oil outlet valve according to claim 2, characterized in that a third oil passage hole is arranged on the oil outlet valve core, and the third oil passage hole connects and communicates the oil return valve inner cavity with the second oil outlet valve inner cavity.
5. The integrated isobaric oil outlet valve according to claim 2, characterized in that a first annular boss is convexly arranged on the outer wall of the damping valve core, and a plurality of first oil guide grooves are circumferentially distributed on the first annular boss at equal intervals.
6. The integrated isopiestic drain valve of claim 5, wherein a space exists between the first annular land and the return valve interior cavity to form a relief cavity.
7. The integrated isobaric oil outlet valve according to claim 2, characterized in that a second annular boss is convexly arranged on the outer wall of the oil outlet valve core, and a plurality of second oil guide grooves are circumferentially distributed on the second annular boss at equal intervals.
8. The integrated isopiestic drain valve of claim 7, wherein a top end of the drain spring abuts the drain valve nipple and a bottom end of the drain spring abuts the second annular boss.
9. The integrated isopiestic delivery valve of claim 1, wherein a seal is disposed between the valve base and the valve connector.
10. An electronic control pump, characterized in that, including the electronic control pump body, be provided with the plunger bushing on the electronic control pump body, detachable installation has the isobaric delivery valve of integral type according to any one of claims 1 to 9 on the plunger bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221231753.XU CN217652850U (en) | 2022-05-20 | 2022-05-20 | Integrated isobaric oil outlet valve and electric control pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221231753.XU CN217652850U (en) | 2022-05-20 | 2022-05-20 | Integrated isobaric oil outlet valve and electric control pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217652850U true CN217652850U (en) | 2022-10-25 |
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ID=83683388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221231753.XU Active CN217652850U (en) | 2022-05-20 | 2022-05-20 | Integrated isobaric oil outlet valve and electric control pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217652850U (en) |
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2022
- 2022-05-20 CN CN202221231753.XU patent/CN217652850U/en active Active
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