CN217602815U

CN217602815U - High-pressure oil pump

Info

Publication number: CN217602815U
Application number: CN202221877147.5U
Authority: CN
Inventors: 赵典秋; 华海峰; 林友贵; 赵典隆; 黄程强; 苏玉英; 王林风; 周立斌; 钟瑞文
Original assignee: WENZHOU BATON ELECTRONICS TECHNOLOGY CO LTD
Current assignee: WENZHOU BATON ELECTRONICS TECHNOLOGY CO LTD
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-10-18
Anticipated expiration: 2032-07-21

Abstract

The utility model discloses a high-pressure oil pump, it includes the pump body, oil feed valve module and goes out the oil valve subassembly, is equipped with mutually independent oil feed chamber and the chamber of producing oil in the pump body, and one side in the chamber of producing oil still is equipped with the plunger subassembly, pump body one side is equipped with the oil inlet with the oil feed chamber intercommunication, and oil inlet department is equipped with the fuel nipple subassembly, the fuel nipple subassembly includes oil inlet seat and oil feed screw, and the inboard of the nut of oil feed screw with the setting is hugged closely to the surface of oil inlet seat, and the oil inlet seat is the loop configuration, and its week side is equipped with the inlet port with oil feed nozzle looks adaptation, two inside and outside lateral walls settings that the inlet port runs through the loop configuration, and the screw thread portion of oil feed screw has the one end open-ended through-hole that sets up along the axis, and one side of screw portion is equipped with the aperture with oil feed port looks adaptation, and aperture and through-hole intercommunication set up. Through setting up changeable oil inlet nozzle subassembly, just can satisfy different loading yards demands through the bend angle who changes oil inlet nozzle.

Description

High-pressure oil pump

Technical Field

The utility model particularly relates to a high-pressure oil pump.

Background

A high-pressure oil pump is generally used in a fuel injection system of a vehicle or other equipment to supply high-pressure fuel to an engine. The high pressure oil pump typically includes one or more high pressure components for pressurizing fuel to a high pressure for supply to the engine.

And general high-pressure oil pump all is equipped with an oil inlet mouth, and general oil inlet mouth all sets up one side or the downside at the pump body, and when the loading, need be connected oil inlet pipe through buckling and oil inlet mouth occasionally, and the oil inlet pipe after buckling can influence the circulation of fuel.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a high-pressure oil pump.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a high-pressure oil pump, its includes the pump body, be equipped with mutually independent oil feed chamber and oil outlet chamber in the pump body, relative one side of the pump body is equipped with inlet valve subassembly and oil outlet valve subassembly respectively, inlet valve subassembly intercommunication inlet chamber and oil outlet chamber, the oil outlet valve subassembly is connected with the other end that oil outlet chamber, one side of oil outlet chamber still is equipped with the plunger subassembly, pump body one side is equipped with the oil inlet with the inlet chamber intercommunication, oil inlet department is equipped with the oil feed mouth subassembly, the oil feed mouth subassembly includes oil inlet seat and oil feed screw, the oil feed screw will the oil inlet seat with pump body fixed connection, just the inboard of the nut of oil feed screw with the surface of oil inlet seat is hugged closely and is set up, the oil inlet seat is the annular structure, and its week side is equipped with the inlet port with oil feed mouth looks adaptation, the inlet port runs through two inside and outside lateral walls settings of annular structure, the screw portion of oil feed screw has the one end open-ended through-hole that sets up along the axis, one side of screw portion is equipped with the aperture of adaptation, aperture and through-hole intercommunication setting.

A gap is formed between the inner side of the oil inlet seat and the threaded portion.

And a filter screen assembly is arranged in the through hole.

The oil inlet seat is provided with a positioning hole, and the pump body is correspondingly provided with a positioning column.

The oil inlet valve assembly comprises an electromagnetic assembly and a valve body, wherein a cover plate with an oil outlet hole is circumferentially arranged at the front end of the valve body, a cavity capable of accommodating the valve clack is formed between the cover plate and the valve body, an elastic piece pressing the valve clack to the valve body is arranged between the valve clack and the cover plate, the valve clack and the valve rod are integrally formed, the valve rod is arranged in linkage with the electromagnetic assembly, and a plurality of oil inlet holes perpendicular to the direction of the valve rod are formed in the valve body.

The valve body is I-shaped, and the oil inlet hole is circumferentially arranged in the middle of the valve body.

The cover plate comprises an inner ring and an outer ring, the inner ring and the outer ring are connected through connecting blocks, oil outlet holes are formed between the adjacent connecting blocks, and the height of the inner ring is lower than that of the outer ring.

The plunger assembly comprises a shell, a plunger and a plunger sleeve arranged in the shell, the plunger can be slidably inserted into the plunger sleeve, a limiting plate is arranged at the tail end of the plunger, and an elastic piece is arranged between the limiting plate and the shell.

One side of the plunger sleeve is provided with a notch, the notch is communicated with the upper backflow space, a lower backflow space is formed between the front end of the shell and the pump body, the notch is communicated with the lower backflow space through a gap between the shell and the plunger sleeve, a backflow hole is formed in the pump body, one end of the backflow hole is communicated with the lower backflow space, and the other end of the backflow hole is communicated with the valve body.

The utility model has the advantages that: through setting up changeable oil inlet nozzle subassembly, just can satisfy different loading yards demands through the bend angle who changes oil inlet nozzle.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic cross-sectional view of the present invention.

Fig. 3 is a schematic cross-sectional view of another angle of the present invention.

Fig. 4 is a schematic sectional view of the oil inlet nozzle assembly of the present invention.

Fig. 5 is the utility model discloses a section schematic diagram of oil feed seat.

Fig. 6 is a schematic structural diagram of the cover plate of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically connected or connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in the figure, a high-pressure oil pump, it includes the pump body 1, be equipped with mutually independent oil feed chamber 11 and oil outlet chamber 12 in the pump body 1, relative one side of the pump body 1 is equipped with inlet valve subassembly 4 and oil outlet valve subassembly 2 respectively, inlet valve subassembly 4 intercommunication inlet chamber 11 and oil outlet chamber 12, oil outlet valve subassembly 2 is connected with the other end of oil outlet chamber 12, one side of oil outlet chamber 12 still is equipped with plunger subassembly 3, 1 one side of the pump body is equipped with the oil inlet 13 with the oil feed chamber intercommunication, oil inlet department is equipped with fuel feed nozzle subassembly 5, fuel feed nozzle subassembly 5 includes oil inlet seat 51 and oil feed screw 52, oil feed screw 52 will oil inlet seat 51 with pump body 1 fixed connection, just the inboard of the nut of oil feed screw with the setting is hugged closely to the surface of oil inlet seat, oil inlet seat 51 is the loop configuration, and its week side is equipped with the inlet 511 with oil feed nozzle 6 looks adaptation, the inlet runs through two inside and outside lateral walls setting of loop configuration, the screw thread portion's one side has the through-hole that sets up along the axis open-ended one side of screw portion, screw portion is equipped with aperture 522 and oil feed hole 521, the aperture communicates with the aperture.

The oil inlet nozzle can adopt a bending structure, can select oil inlet nozzle components with different bending angles according to different places, and is convenient to install.

The oil inlet screw is in threaded fit with the pump body, the sealing structures are arranged at the joints to achieve the sealing performance of the oil inlet screw, the oil inlet screw penetrates through the center of the oil inlet seat and is respectively in sealing arrangement with the two sides of the oil inlet seat, a sealed gap 54 is formed between the oil inlet screw and the oil inlet seat, and the through hole with the opening at one end of the oil inlet screw is communicated with the gap and the oil inlet cavity through the small hole.

Be equipped with filter screen assembly 53 in the through-hole, play the filter action to the oil feed.

The oil inlet seat is provided with a positioning hole 512, and the pump body is correspondingly provided with a positioning column 14 to play a positioning role.

The inlet valve subassembly 4 includes electromagnetic component 41 and valve body 42, the valve body 42 front end is equipped with the apron 43 that circumference was equipped with the oil outlet, form the cavity that can hold valve clack 44 between apron and the valve body, be equipped with between valve clack and the apron with the valve clack presses to the elastic component of valve body, valve clack and valve rod 45 integrated into one piece, just the valve rod sets up with the linkage of electromagnetic component, a plurality of inlet ports that are equipped with perpendicular valve rod direction setting on the valve body. The other end of the valve rod penetrates through the other side of the valve body and is linked with the electromagnetic control assembly, and the valve rod can act under the driving of the electromagnetic control assembly to realize the control of oil outlet.

The valve body 42 is I-shaped, and the oil inlet hole is circumferentially arranged in the middle of the valve body. The oil inlet holes are circumferentially arranged in the middle of the valve body, the sunken parts are arranged corresponding to oil pipes of the oil cavity, and the volume of the oil cavity of the electromagnetic valve is increased.

The apron includes inner ring 432 and outer loop 431, and is connected through the connecting block between inner ring and the outer loop, and forms the oil outlet between the adjacent connecting block, and the height that highly is less than the outer loop of inner ring is interior. A flow passage is formed between the inner ring and the valve body, and oil flowing out of the valve body can flow into a cavity between the plunger assembly and the pump body from the flow passage through the oil outlet hole.

Be equipped with the mounting groove on the pump body, the plunger subassembly inlay establish install in the mounting groove, plunger subassembly snap-on sets up inside the pump body, can improve connection reliability between the two, avoids the phenomenon of oil impregnate to appear.

And a sealing ring is arranged between the rear end of the plunger sleeve and the shell, so that the effect of preventing oil from leaking from the sealing ring is achieved.

The plunger assembly 3 comprises a shell 31, a plunger 33 and a plunger sleeve 32 arranged in the shell, the plunger can be slidably inserted into the plunger sleeve, a limiting plate 34 is arranged at the tail end of the plunger, and an elastic part is arranged between the limiting plate and the shell.

One side of the plunger sleeve is provided with a notch 37, the notch is communicated with the upper backflow space 35, a lower backflow space 36 is formed between the front end of the shell and the pump body, the notch is communicated with the lower backflow space through a gap between the shell and the plunger sleeve, a backflow hole is formed in the pump body, one end of the backflow hole is communicated with the lower backflow space, and the other end of the backflow hole is communicated with the valve body. One end of the backflow hole is communicated with the lower backflow space, and the other end of the backflow hole is communicated with the valve body. The oil entering the plunger assembly can be stored in the upper backflow space, flows into the lower backflow space through the notch, returns to the valve body through the backflow hole, flows into the lower backflow space through the gap, and can further ensure the lubrication between the plunger and the plunger sleeve.

The examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of the present invention.

Claims

1. The utility model provides a high-pressure oil pump, its includes the pump body (1), be equipped with mutually independent oil feed chamber (11) and oil outlet chamber (12) in the pump body (1), the relative one side of the pump body (1) is equipped with oil feed valve subassembly (4) and oil outlet valve subassembly (2) respectively, oil feed valve subassembly (4) intercommunication oil feed chamber (11) and oil outlet chamber (12), oil outlet valve subassembly (2) are connected with the other end in oil outlet chamber (12), one side in oil outlet chamber (12) still is equipped with plunger assembly (3), its characterized in that: the utility model discloses a pump body, including pump body (1), oil inlet (13) that feed chamber communicates are equipped with to the oil inlet, oil inlet department is equipped with into oil nipple subassembly (5), oil nipple subassembly (5) are including oil feeding seat (51) and oil feed screw (52), oil feed screw (52) will oil feeding seat (51) with the pump body (1) fixed connection, just the inboard of the nut of oil feed screw with the setting is hugged closely to the surface of oil feeding seat, oil feeding seat (51) are the loop configuration, and its week side is equipped with inlet port (511) with oil feed nozzle (6) looks adaptation, the inlet port runs through two inside and outside lateral walls settings of loop configuration, the screw portion of oil feed screw has one end open-ended through hole (521) that sets up along the axis, one side of screw portion is equipped with aperture (522) with inlet port looks adaptation, the aperture sets up with the through-hole intercommunication.

2. A high-pressure oil pump as claimed in claim 1, characterized in that: a gap (54) is formed between the inner side of the oil inlet seat and the threaded part.

3. The high-pressure oil pump according to claim 1, characterized in that: a filter screen component (53) is arranged in the through hole.

4. The high-pressure oil pump according to claim 1, characterized in that: the oil inlet seat is provided with a positioning hole (512), and the pump body is correspondingly provided with a positioning column (14).

5. The high-pressure oil pump according to claim 1, characterized in that: oil feed valve subassembly (4) are including electromagnetic component (41) and valve body (42), valve body (42) front end is equipped with circumference and is equipped with apron (43) that the oil outlet was equipped with, form the cavity that can hold valve clack (44) between apron and the valve body, be equipped with between valve clack and the apron with the valve clack presses to the elastic component of valve body, valve clack and valve rod (45) integrated into one piece, just the valve rod sets up with the linkage of electromagnetic component, a plurality of inlet ports that are equipped with perpendicular valve rod direction setting on the valve body.

6. The high-pressure oil pump according to claim 5, characterized in that: the valve body (42) is I-shaped, and the oil inlet hole is circumferentially arranged in the middle of the valve body.

7. The high-pressure oil pump according to claim 5, characterized in that: the cover plate comprises an inner ring (432) and an outer ring (431), the inner ring and the outer ring are connected through connecting blocks, oil outlet holes are formed between adjacent connecting blocks, and the height of the inner ring is lower than that of the outer ring.

8. The high-pressure oil pump according to claim 5, characterized in that: plunger subassembly (3) include shell (31), plunger (33) and set up plunger bushing (32) in the shell, the plunger can slide and insert and locate in the plunger bushing, the end of plunger is equipped with limiting plate (34), be equipped with the elastic component between limiting plate and the shell.

9. A high-pressure oil pump as claimed in claim 8, characterized in that: one side of the plunger sleeve is provided with a notch (37), the notch is communicated with an upper backflow space (35), a lower backflow space (36) is formed between the front end of the shell and the pump body, the notch is communicated with the lower backflow space through a gap between the shell and the plunger sleeve, a backflow hole is formed in the pump body, one end of the backflow hole is communicated with the lower backflow space, and the other end of the backflow hole is communicated with the valve body.