CN217632743U - Low-pressure high-pressure dual-purpose oil pump - Google Patents
Low-pressure high-pressure dual-purpose oil pump Download PDFInfo
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- CN217632743U CN217632743U CN202221877289.1U CN202221877289U CN217632743U CN 217632743 U CN217632743 U CN 217632743U CN 202221877289 U CN202221877289 U CN 202221877289U CN 217632743 U CN217632743 U CN 217632743U
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Abstract
The utility model discloses a low pressure high pressure double-purpose oil pump, it includes the pump body and sets up the oil feed chamber and the chamber of producing oil in the pump body, one side that the pump body is relative is equipped with oil feed valve subassembly and high pressure respectively and produces oil valve subassembly, oil feed valve subassembly intercommunication oil feed chamber and the chamber of producing oil, high pressure produces oil valve subassembly and the chamber intercommunication of producing oil, one side of the chamber of producing oil is equipped with the plunger subassembly, the bottom of the pump body is equipped with the oil feed mouth, the oil feed mouth sets up its characterized in that with the oil feed chamber intercommunication: the pump body is further provided with a low-pressure oil outlet assembly, the low-pressure oil outlet assembly and the high-pressure oil outlet valve assembly are arranged in a non-interfering mode, and the low-pressure oil outlet assembly is communicated with the oil inlet cavity. Through setting up mutual independence, and the high pressure that does not interfere with each other goes out oil valve subassembly and low pressure subassembly of going out oil, can realize high-pressure fuel output and low pressure fuel output simultaneously, satisfies the place demand that needs low pressure fuel and high-pressure fuel simultaneously.
Description
Technical Field
The utility model particularly relates to a low pressure high pressure double-purpose oil pump.
Background
Plunger type high pressure oil pumps are generally used in fuel injection systems for vehicles or other devices to supply high pressure fuel to an engine. And the low-pressure oil pump is then the output low pressure fuel, but current oil pump either high pressure or low pressure, can't realize the double-purpose, in the occasion that both needs low-pressure oil pump or high-pressure oil pump, then need install two oil pumps.
SUMMERY OF THE UTILITY MODEL
To the not enough of prior art existence, the utility model aims to provide a low pressure high pressure double-purpose oil pump.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a low pressure high pressure double-purpose oil pump, its includes the pump body and sets up oil feed chamber and the chamber of producing oil in the pump body, one side that the pump body is relative is equipped with oil feed valve subassembly and high pressure respectively and produces oil the valve subassembly, oil feed valve subassembly intercommunication oil feed chamber and the chamber of producing oil, high pressure produces oil valve subassembly and the chamber intercommunication of producing oil, one side of the chamber of producing oil is equipped with the plunger subassembly, the bottom of the pump body is equipped with the oil feed mouth, the oil feed mouth sets up its characterized in that with oil feed chamber intercommunication: the pump body is further provided with a low-pressure oil outlet assembly, the low-pressure oil outlet assembly and the high-pressure oil outlet valve assembly are arranged in a non-interfering mode, and the low-pressure oil outlet assembly is communicated with the oil inlet cavity.
A backflow cavity is formed between the plunger assembly and the pump body, a first through hole and a second through hole are formed in the backflow cavity, the first through hole is communicated with the low-pressure oil outlet assembly, and the second through hole is communicated with the oil inlet cavity.
The high-pressure oil outlet valve assembly comprises an oil outlet nozzle and an oil outlet valve arranged in the pump body.
The oil outlet valve comprises an oil outlet valve seat and an oil outlet cover fixedly connected with the oil outlet valve seat, a plurality of holes are formed in the oil outlet cover, a ball core is arranged in the oil outlet cover, and an elastic piece pressing the ball core on the valve seat is arranged between the oil outlet cover and the ball core.
The downside of going out the oil valve is equipped with the relief valve, the axis and the oil valve parallel arrangement of relief valve, the one end and the play oil nozzle intercommunication of relief valve, its other end and oil feed chamber intercommunication.
The pump body is internally provided with a blind hole, one end of the blind hole is communicated with the oil outlet nozzle, the other end of the blind hole is communicated with the oil inlet cavity through a vertical hole perpendicular to the blind hole, and the pressure release valve is arranged in the blind hole.
The pressure relief valve comprises a pressure relief valve seat in sealing fit with the hole wall of the blind hole, a pressure relief valve rod is arranged at the rear end of the pressure relief valve seat and presses the pressure relief valve rod against an elastic piece on the pressure relief valve seat, and a pressure relief ball core is arranged between the pressure relief valve rod and the pressure relief valve seat.
The utility model has the advantages that: through setting up mutual independence, and the high pressure that does not interfere with each other goes out oil valve subassembly and low pressure subassembly of going out oil, can realize high-pressure fuel output and low pressure fuel output simultaneously, satisfies the place demand that needs low pressure fuel and high-pressure fuel simultaneously.
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 sectional view of the present invention (at the first through hole).
Fig. 4 is a schematic cross-sectional view of the present invention (at the second through hole).
Fig. 5 is a schematic sectional view of the present invention (pump body).
FIG. 6 is a schematic view of the present invention (at the location of the high pressure delivery valve assembly) in a partial section.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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; the connection can be mechanical connection or connection; 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 low pressure high pressure double-purpose oil pump, it includes the pump body 1 and sets up oil feed chamber 11 and the oil cavity 12 of producing oil in the pump body 1, one side that the pump body is relative is equipped with oil feed valve subassembly 4 and high pressure oil valve subassembly 2 of producing oil respectively, oil feed valve subassembly 4 intercommunication oil feed chamber and the oil cavity of producing oil, high pressure oil valve subassembly and the oil cavity intercommunication of producing oil, one side of producing the oil cavity is equipped with plunger assembly 3, the bottom of the pump body is equipped with oil feed nozzle 6, oil feed nozzle 6 sets up with the oil feed chamber intercommunication, still be equipped with low pressure oil module 5 of producing oil on the pump body, low pressure oil module 5 and high pressure oil valve subassembly mutually noninterfere set up, just low pressure oil module and oil feed chamber intercommunication set up.
The high-pressure oil outlet and the low-pressure oil outlet are realized, the requirement of outputting high-pressure fuel oil after the low-pressure oil outlet is ignited can be met, or the three-way effect is realized, the low-pressure oil outlet assembly is connected with another high-pressure oil pump, and the output of the double high-pressure oil pumps is realized.
A backflow cavity 13 is formed between the plunger assembly and the pump body, a first through hole 14 and a second through hole 15 are formed in the backflow cavity, the first through hole 14 is communicated with the low-pressure oil outlet assembly, and the second through hole 15 is communicated with the oil inlet cavity. The low-pressure oil outlet assembly is not directly communicated with the oil inlet cavity, but is communicated with the low-pressure oil outlet assembly through the backflow cavity between the plunger assembly and the pump body, and a low-pressure oil way is prolonged.
The high-pressure oil outlet valve assembly comprises an oil outlet nozzle 21 and an oil outlet valve 22 arranged in the pump body.
The oil outlet valve comprises an oil outlet valve seat 222 and an oil outlet cover 221 fixedly connected with the oil outlet valve seat 222, a plurality of holes are formed in the oil outlet cover, a ball core 223 is arranged in the oil outlet cover, and an elastic part pressing the ball core on the valve seat is arranged between the oil outlet cover and the ball core. The diameter of the oil outlet cover is matched with the ball core, the effect of limiting the ball core is achieved, the ball core is jacked open under the effect of oil pressure, and the action of oil outlet is achieved.
The downside of going out the oil valve is equipped with relief valve 7, the axis and the oil valve parallel arrangement of relief valve, the one end and the play oil nozzle intercommunication of relief valve, its other end and oil feed chamber intercommunication. The parallel design can reduce the processing difficulty.
The pump body is internally provided with a blind hole 16, one end of the blind hole is communicated with the oil outlet nozzle, the other end of the blind hole is communicated with the oil inlet cavity through a vertical hole 17 which is vertical to the blind hole, and the pressure release valve is arranged in the blind hole. The pressure release valve is arranged in the blind hole, the blind hole is directly used as a valve body, the front end of the blind hole is sealed through a pressure release valve seat, and the installation is convenient.
The pressure relief valve comprises a pressure relief valve seat 71 which is in sealing fit with the hole wall of the blind hole, a pressure relief valve rod 72 is arranged at the rear end of the pressure relief valve seat, the pressure relief valve rod is pressed on an elastic piece on the pressure relief valve seat, and a pressure relief ball core 73 is arranged between the pressure relief valve rod and the pressure relief valve seat. The pressure relief ball core is pushed open by oil pressure, and oil returns to the oil inlet cavity from the outer side of the valve rod, so that the adjustment of the oil pressure is realized.
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 (7)
1. The utility model provides a low pressure high pressure double-purpose oil pump, its includes the pump body (1) and sets up oil feed chamber (11) and the chamber of producing oil (12) in the pump body (1), one side that the pump body is relative is equipped with oil feed valve subassembly (4) and high pressure oil outlet valve subassembly (2) respectively, oil feed valve subassembly (4) intercommunication oil feed chamber and the chamber of producing oil, the high pressure valve subassembly of producing oil communicates with the chamber of producing oil, one side of producing the oil chamber is equipped with plunger subassembly (3), the bottom of the pump body is equipped with oil feed nozzle (6), oil feed nozzle (6) set up its characterized in that with the oil feed chamber intercommunication: still be equipped with low pressure subassembly (5) of producing oil on the pump body, low pressure subassembly (5) of producing oil and high pressure delivery valve subassembly mutually noninterfere sets up, just low pressure subassembly of producing oil and the setting of oil feed chamber intercommunication.
2. The low-pressure high-pressure dual-purpose oil pump according to claim 1, characterized in that: form backward flow chamber (13) between the plunger subassembly and the pump body, be equipped with first through-hole (14) and second through-hole (15) in the backward flow intracavity, first through-hole (14) and low pressure oil outlet subassembly intercommunication, second through-hole (15) with oil feed chamber intercommunication sets up.
3. The low-pressure high-pressure dual-purpose oil pump according to claim 1, characterized in that: the high-pressure oil outlet valve assembly comprises an oil outlet nozzle (21) and an oil outlet valve (22) arranged in the pump body.
4. A low-pressure high-pressure dual-purpose oil pump according to claim 3, characterized in that: the oil outlet valve comprises an oil outlet valve seat (222) and an oil outlet cover (221) fixedly connected with the oil outlet valve seat (222), a plurality of holes are formed in the oil outlet cover, a ball core (223) is arranged in the oil outlet cover, and an elastic part pressing the ball core on the valve seat is arranged between the oil outlet cover and the ball core.
5. A low-pressure high-pressure dual-purpose oil pump as claimed in claim 3, wherein: the downside that goes out the oil valve is equipped with relief valve (7), the axis and the oil valve parallel arrangement of relief valve, the one end and the play oil nozzle intercommunication of relief valve, its other end and oil feed chamber intercommunication.
6. The low-pressure high-pressure dual-purpose oil pump according to claim 5, characterized in that: the pump body is internally provided with a blind hole (16), one end of the blind hole is communicated with the oil outlet nozzle, the other end of the blind hole is communicated with the oil inlet cavity through a vertical hole (17) vertical to the blind hole, and the pressure release valve is arranged in the blind hole.
7. The low-pressure high-pressure dual-purpose oil pump according to claim 5, characterized in that: the relief valve includes constitutes sealed complex pressure release disk seat (71) with the pore wall of blind hole, the rear end of pressure release disk seat is equipped with pressure release valve rod (72) and presses the pressure release valve rod elastic component on the pressure release disk seat, be equipped with pressure release ball core (73) between pressure release valve rod and the pressure release disk seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221877289.1U CN217632743U (en) | 2022-07-21 | 2022-07-21 | Low-pressure high-pressure dual-purpose oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221877289.1U CN217632743U (en) | 2022-07-21 | 2022-07-21 | Low-pressure high-pressure dual-purpose oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217632743U true CN217632743U (en) | 2022-10-21 |
Family
ID=83634166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221877289.1U Active CN217632743U (en) | 2022-07-21 | 2022-07-21 | Low-pressure high-pressure dual-purpose oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217632743U (en) |
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2022
- 2022-07-21 CN CN202221877289.1U patent/CN217632743U/en active Active
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