CN215890280U - High-pressure oil pump body with good sealing performance for diesel engine - Google Patents
High-pressure oil pump body with good sealing performance for diesel engine Download PDFInfo
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- CN215890280U CN215890280U CN202121369459.0U CN202121369459U CN215890280U CN 215890280 U CN215890280 U CN 215890280U CN 202121369459 U CN202121369459 U CN 202121369459U CN 215890280 U CN215890280 U CN 215890280U
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Abstract
The utility model discloses a high-pressure oil pump body with good sealing performance for a diesel engine, which comprises an oil pump main body and a pump cover, wherein the pump cover is fixedly arranged on one side above the oil pump main body, studs are movably inserted into two inner sides of the pump cover, screw grooves are formed in two inner sides of the oil pump main body, a plunger piece is fixedly arranged inside the oil pump main body, and a plunger spring is fixedly arranged outside the plunger piece. The buffer spring is favorable for reducing the looseness of the sealing connection part, so that the sealing performance of the sealing connection part is further improved, then the stud is rotated until the stud is screwed into the screw groove, the connection between the oil pump main body and the pump cover can be further fixed conveniently through the threaded connection of the stud and the screw groove, the throttling and leakage preventing are further improved through the plurality of leakage preventing pipes, then the oil flows into the oil conveying pipe through the plurality of leakage preventing pipes, and the oil conveying pipe conveys the throttled oil into the prepared oil tank through the oil pipe joint for storage, so that the oil loss is further reduced, and the energy is saved conveniently.
Description
Technical Field
The utility model relates to the technical field of high-pressure oil pump bodies, in particular to a high-pressure oil pump body with good sealing performance for a diesel engine.
Background
The high-pressure common rail injection technology is an oil supply mode which completely separates the generation of injection pressure and the injection process from each other in a closed-loop system consisting of a high-pressure oil pump, a pressure sensor and an electronic control unit, and is one of the core parts of an electronic injection system of the diesel engine.
The fastening structure between the pump bodies of the existing high-pressure oil pump is limited by space, so that the sealing performance is not high, the pressure between the pressure of the high-pressure oil pump during oil supply and the sealing structure is reduced, the power for oil supply is insufficient, the internal sealing performance is reduced due to the reduction of the pressure, sufficient fuel pressure is difficult to establish, and the potential safety hazard of diesel oil leakage is very easy to occur.
Therefore, it is necessary to solve the above problems by providing a high-pressure oil pump body for a diesel engine having excellent sealing performance.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a high-pressure oil pump body for a diesel engine with good sealing performance, and aims to solve the problems that the sealing performance is not high due to the fact that a fastening structure between the existing high-pressure oil pump bodies is limited by space, the pressure between the pressure of a high-pressure oil pump during oil supply and the pressure of a sealing structure is reduced, the power for supplying oil is insufficient, the internal sealing performance is reduced due to the reduction of the pressure, enough fuel pressure is difficult to establish, and the potential safety hazard of diesel oil leakage is easy to occur.
In order to achieve the above purpose, the utility model provides the following technical scheme: a high-pressure oil pump body for a diesel engine with good sealing performance comprises an oil pump main body and a pump cover, wherein the pump cover is fixedly arranged on one side above the oil pump main body, studs are movably inserted into two inner sides of the pump cover, screw grooves are formed in two inner sides of the oil pump main body, a plunger piece is fixedly arranged inside the oil pump main body, a plunger spring is fixedly arranged outside the plunger piece, a sealing clamping block is fixedly arranged above the oil pump main body, a sealing plate is fixedly arranged inside the pump cover, a buffer spring is fixedly connected outside the sealing plate, a plunger oil cavity is fixedly arranged above the plunger piece, a fuel throwing pipe is fixedly arranged on one side of the plunger oil cavity, a sealing ring is fixedly connected outside the plunger oil cavity, a fuel throwing hole is fixedly arranged on one side of the sealing ring, a leakage blocking pipe is fixedly arranged inside the sealing ring, and an oil conveying pipe is fixedly arranged at one end of the sealing ring, one end of the oil delivery pipe is fixedly connected with an oil pipe joint, and the tail end of the oil pipe joint is fixedly connected with a preparation oil tank.
Preferably, the number of the studs is two, the two studs are symmetrically distributed around the pump cover, and the two studs and the screw grooves are connected in a threaded manner.
Preferably, the sealing clamping blocks are arranged in an L shape, the number of the sealing clamping blocks is two, and the two sealing clamping blocks are symmetrically distributed around the oil pump main body.
Preferably, the inside of pump cover has been seted up the seal groove, the quantity of seal groove sets up to two, two the seal groove is connected for the block with the connected mode of two sealed fixture blocks.
Preferably, the sealing plate is arranged in an L shape, and the diameter of the sealing plate is smaller than that of the sealing fixture block.
Preferably, every two buffer springs are arranged into one group, two groups are arranged, and the two groups of buffer springs are distributed in parallel.
Preferably, the oil throwing pipe is in a slope shape, and the oil throwing pipe is matched with the oil throwing hole.
Preferably, the leakage-proof pipes are arranged in a plurality of numbers, and the leakage-proof pipes are distributed at equal intervals relative to the sealing ring.
The buffer spring is favorable for reducing the looseness of the sealing connection part, so that the sealing performance of the sealing connection part is further improved, then the stud is rotated until the stud is screwed into the screw groove, the connection between the oil pump main body and the pump cover can be further fixed conveniently through the threaded connection of the stud and the screw groove, the throttling and leakage preventing are further improved through the plurality of leakage preventing pipes, then the oil flows into the oil conveying pipe through the plurality of leakage preventing pipes, and the oil conveying pipe conveys the throttled oil into the prepared oil tank through the oil pipe joint for storage, so that the oil loss is further reduced, and the energy is saved conveniently.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is an overall perspective view of the present invention;
FIG. 2 is a schematic structural view of an oil pump body and a pump cover according to the present invention;
FIG. 3 is a schematic view of the interior of the pump cover of the present invention;
FIG. 4 is a perspective view of a seal ring of the present invention;
FIG. 5 is an enlarged view of portion A of FIG. 3 according to the present invention.
FIG. 6 is a schematic side view of a seal ring according to the present invention.
Description of reference numerals:
1. an oil pump main body; 2. a pump cover; 3. a stud; 4. a screw groove; 5. a plunger member; 6. a plunger spring; 7. Sealing the clamping block; 8. a sealing plate; 9. a buffer spring; 10. a plunger oil chamber; 11. throwing the oil pipe; 12. a seal ring; 13. an oil throwing hole; 14. a leakage blocking pipe; 15. an oil delivery pipe; 16. an oil pipe joint; 17. and (5) preparing an oil tank.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
The present invention provides the following technical solutions as shown in fig. 1 to 6: the utility model provides the following technical scheme: a high-pressure oil pump body for a diesel engine with good sealing performance comprises an oil pump main body 1 and a pump cover 2, wherein the pump cover 2 is fixedly arranged on one side above the oil pump main body 1, studs 3 are movably inserted into two inner sides of the pump cover 2, screw grooves 4 are formed in two inner sides of the oil pump main body 1, a plunger piece 5 is fixedly arranged inside the oil pump main body 1, a plunger spring 6 is fixedly arranged outside the plunger piece 5, a sealing clamping block 7 is fixedly arranged above the oil pump main body 1, a sealing plate 8 is fixedly arranged inside the pump cover 2, a buffer spring 9 is fixedly connected outside the sealing plate 8, a plunger oil cavity 10 is fixedly arranged above the plunger piece 5, a oil throwing pipe 11 is fixedly arranged on one side of the plunger oil cavity 10, a sealing ring 12 is fixedly connected outside the plunger oil cavity 10, and an oil throwing hole 13 is fixedly arranged on one side of the sealing ring 12, the inside regulation of sealing ring 12 is provided with leak-stopping pipe 14, and the fixed defeated oil pipe 15 that is provided with of one end of sealing ring 12, the one end fixedly connected with oil pipe joint 16 of defeated oil pipe 15, and the terminal fixedly connected with of oil pipe joint 16 prepares oil tank 17.
The number of the studs 3 is two, the studs 3 are symmetrically distributed about the pump cover 2, and the two studs 3 are connected with the screw grooves 4 in a threaded manner.
The sealing fixture blocks 7 are arranged in an L shape, the number of the sealing fixture blocks 7 is two, and the two sealing fixture blocks 7 are symmetrically distributed around the oil pump main body 1.
The inside of pump cover 2 has seted up the seal groove, the quantity of seal groove sets up to two, two the seal groove is connected for the block with two sealing fixture block 7's connected mode.
The sealing plate 8 is arranged in an L shape, and the diameter of the sealing plate 8 is smaller than that of the sealing fixture block 7.
Every two buffer springs 9 set up to a set of, are equipped with two sets altogether, two sets of buffer springs 9 parallel distribution.
The oil throwing pipe 11 is in a slope shape, and the oil throwing pipe 11 is matched with the oil throwing hole 13.
The number of the leakage-proof pipes 14 is set to be a plurality, and the leakage-proof pipes 14 are distributed at equal intervals relative to the sealing ring 12.
Referring to the attached drawings 2 and 5 in the specification, before use, the oil pump main body 1 is hermetically installed, the pump cover 2 is installed and connected above the oil pump main body 1, the sealing grooves formed on two sides inside the pump cover 2 are mutually clamped and connected with the two sealing clamping blocks 7, thereby conveniently connecting the oil pump main body 1 with the pump cover 2 and improving the preliminary sealing performance, simultaneously, when the sealing plate 8 and the sealing clamping block 7 are kept parallel, the buffer spring 9 on the sealing plate 8 is abutted against the sealing clamping block 7, the buffer spring 9 is extruded between the two plates, and when the oil pump main body 1 is in operation, the buffer spring 9 can be used for reducing the looseness of the sealing connection part, thereby further improving the sealing performance of the sealing connection part, then, the stud 3 is rotated until the stud is screwed into the screw groove 4, and the connection between the oil pump main body 1 and the pump cover 2 can be further fixed conveniently through the threaded connection between the stud and the screw groove.
Referring to the attached drawings 1-6 of the specification, when the diesel engine runs, the plunger piece 5 inside the diesel engine is matched with the plunger spring 6 to move below the plunger oil cavity 10, the plunger piece 5 moves to generate pressure inside the diesel engine, so that oil supply power is conveniently provided, meanwhile, part of leaked and sliding oil enters the oil throwing hole 13 through the oil throwing pipe 11, the oil throwing hole 13 conveys the oil into the multiple leakage blocking pipes 14, throttling and leakage blocking are further improved through the multiple leakage blocking pipes 14, then the oil flows into the oil conveying pipe 15 through the multiple leakage blocking pipes 14, the oil conveyed out through the oil conveying pipe 15 is conveyed into the prepared oil tank 17 through the oil pipe joint 16 to be stored, so that oil loss is further reduced, and convenience and energy conservation are realized.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.
Claims (8)
1. The utility model provides a diesel engine is with high-pressure oil pump body that leakproofness is good, includes oil pump main part (1) and pump cover (2), its characterized in that: the oil pump is characterized in that a pump cover (2) is fixedly arranged on one side of the upper portion of the oil pump main body (1), studs (3) are movably inserted into two inner sides of the pump cover (2), screw grooves (4) are formed in two inner sides of the oil pump main body (1), a plunger piece (5) is fixedly arranged inside the oil pump main body (1), a plunger spring (6) is fixedly arranged outside the plunger piece (5), a sealing clamping block (7) is fixedly arranged above the oil pump main body (1), a sealing plate (8) is fixedly arranged inside the pump cover (2), a buffer spring (9) is fixedly connected to the outside of the sealing plate (8), a plunger oil cavity (10) is fixedly arranged above the plunger piece (5), a fuel throwing pipe (11) is fixedly arranged on one side of the plunger oil cavity (10), and a sealing ring (12) is fixedly connected to the outside of the plunger oil cavity (10), and one side of sealing ring (12) is fixed and is provided with gets rid of oilhole (13), the inside regulation of sealing ring (12) is provided with leak-stopping pipe (14), and the fixed defeated oil pipe (15) that is provided with of one end of sealing ring (12), the one end fixedly connected with oil pipe joint (16) of defeated oil pipe (15), and the terminal fixedly connected with of oil pipe joint (16) prepares oil tank (17).
2. The high-pressure oil pump body for a diesel engine excellent in sealing performance according to claim 1, characterized in that: the number of the studs (3) is two, the studs (3) are symmetrically distributed relative to the pump cover (2), and the studs (3) are connected with the screw grooves (4) in a threaded manner.
3. The high-pressure oil pump body for a diesel engine excellent in sealing performance according to claim 1, characterized in that: the oil pump is characterized in that the sealing fixture blocks (7) are arranged to be L-shaped, the number of the sealing fixture blocks (7) is two, and the two sealing fixture blocks (7) are symmetrically distributed around the oil pump main body (1).
4. The high-pressure oil pump body for a diesel engine excellent in sealing performance according to claim 1, characterized in that: the sealing groove is formed in the pump cover (2), the number of the sealing grooves is two, and the two sealing grooves are connected with the two sealing clamping blocks (7) in a clamping mode.
5. The high-pressure oil pump body for a diesel engine excellent in sealing performance according to claim 1, characterized in that: the sealing plate (8) is L-shaped, and the diameter of the sealing plate (8) is smaller than that of the sealing clamping block (7).
6. The high-pressure oil pump body for a diesel engine excellent in sealing performance according to claim 1, characterized in that: every two buffer springs (9) are set as one group, and two groups are arranged, and the two groups of buffer springs (9) are distributed in parallel.
7. The high-pressure oil pump body for a diesel engine excellent in sealing performance according to claim 1, characterized in that: the oil throwing pipe (11) is in a slope shape, and the oil throwing pipe (11) is matched with the oil throwing hole (13).
8. The high-pressure oil pump body for a diesel engine excellent in sealing performance according to claim 1, characterized in that: the leakage-proof pipes (14) are arranged in a plurality of numbers, and the leakage-proof pipes (14) are distributed at equal intervals relative to the sealing ring (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121369459.0U CN215890280U (en) | 2021-06-18 | 2021-06-18 | High-pressure oil pump body with good sealing performance for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121369459.0U CN215890280U (en) | 2021-06-18 | 2021-06-18 | High-pressure oil pump body with good sealing performance for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215890280U true CN215890280U (en) | 2022-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121369459.0U Active CN215890280U (en) | 2021-06-18 | 2021-06-18 | High-pressure oil pump body with good sealing performance for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215890280U (en) |
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2021
- 2021-06-18 CN CN202121369459.0U patent/CN215890280U/en active Active
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