CN211780119U - Large-displacement oil pump capable of achieving double-side oil outlet - Google Patents
Large-displacement oil pump capable of achieving double-side oil outlet Download PDFInfo
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- CN211780119U CN211780119U CN201922115130.0U CN201922115130U CN211780119U CN 211780119 U CN211780119 U CN 211780119U CN 201922115130 U CN201922115130 U CN 201922115130U CN 211780119 U CN211780119 U CN 211780119U
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Abstract
The utility model discloses a big discharge capacity oil pump of two-sided produce oil, it include a pump body and with pump body complex pump cover, be equipped with the pump chamber in the pump body, be equipped with eccentric ring and rotor in the pump chamber, extend the swing arm on one side of the outer periphery of eccentric ring, be equipped with reset spring between swing arm and the pump chamber inner wall, reset spring one end is supported in the swing arm, and the other end supports in pump body inner wall, be equipped with oil inlet and oil-out on the pump body, the oil inlet all communicates with each other with the pump chamber with the oil-out, the oil-out communicates with each other with the pump chamber and forms an oil duct, and the eccentric ring that is close to the oil duct is equipped with the through-hole, the through-hole runs through eccentric ring both sides face for. The utility model discloses increase open the oil pocket on the pump cover to form an oil duct, realize the two-sided oil of eccentric ring, make the oil outlet smooth and easy, thereby reduce pressure pulsation, improve the NVH problem of oil pump simultaneously.
Description
Technical Field
The utility model relates to a pump technical field specifically is a big discharge oil pump of two-sided oil production.
Background
The oil pump is an important part in a lubricating system, and has the function of providing sufficient pressure and flow for the lubricating system, wherein the oil outlet quantity of the oil pump with large displacement is required to be large and stable in oil outlet, while the traditional oil pump with large displacement is almost designed to be single-sided oil outlet at present, as shown in fig. 3, so that the pressure of a single-sided oil outlet cavity is high. However, because the space in the pump body of the existing oil pump is limited, if the oil cavity is small in size, the oil is not smoothly discharged or is insufficient, so that the pressure is extremely unstable, the pressure pulsation of the oil pump is large, and the whole lubricating system of an engine is damaged.
Disclosure of Invention
The utility model discloses the technical problem that will solve is: the oil cavity is additionally arranged on the pump cover to form an oil duct, so that double-sided oil outlet of the eccentric ring is realized, the oil outlet is smooth, the pressure pulsation is reduced, and the NVH problem of the oil pump is improved to a certain extent.
The utility model adopts the technical proposal that: the oil-saving pump comprises a pump body and a pump cover matched with the pump body, wherein a pump cavity is arranged in the pump body, an eccentric ring and a rotor are arranged in the pump cavity, a swing arm extends out of one side of the outer circumferential wall of the eccentric ring, a reset spring is arranged between the swing arm and the inner wall of the pump cavity, one end of the reset spring is abutted against the swing arm, the other end of the reset spring is abutted against the inner wall of the pump body, an oil inlet and an oil outlet are arranged on the pump body, the oil inlet and the oil outlet are communicated with the pump cavity, the oil outlet is communicated with the pump cavity to form an oil channel, a through hole is arranged on the eccentric ring close to the oil channel, the through.
Preferably, the other side of the outer circumferential wall of the eccentric ring is movably connected with the inner wall of the pump cavity through a cylindrical pin.
Preferably, the radial dimension of the oil passage inlet is larger than or equal to the radial dimension of the through hole, and the radial dimension of the oil cavity is larger than the radial dimension of the through hole.
Preferably, the inner wall of the oil passage is a smooth curved surface.
The utility model provides a big discharge capacity oil pump of two-sided produce oil, on original single oily passageway basis of producing oil, add an oil pocket on the pump cover to it has the through-hole to open on eccentric ring, makes the oil pocket communicate with each other with the through-hole, and partial machine oil passes through the oil pocket, and assembles in producing oil the passageway through the through-hole, reachs the oil-out, thereby realizes that eccentric ring two sides produces oil, has increased the whole volume of producing oil of the pump body.
Drawings
Fig. 1 is a sectional view of the structure of the present invention.
Fig. 2 is a front view of the present invention (with the pump cover removed).
FIG. 3 is a schematic illustration of prior art single-sided oil drainage.
The oil pump comprises a pump body 1, a pump cover 2, a pump cover 3, a pump cavity 4, an eccentric ring 5, a rotor 6, a swing arm 7, a return spring 8, an oil inlet 9, an oil outlet 10, an oil passage 11, a through hole 12 and an oil cavity.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
The utility model provides a big discharge capacity oil pump of two-sided produce oil, as shown in fig. 1, it includes a pump body 1 and with 1 complex pump cover 2 of the pump body, be equipped with pump chamber 3 in the pump body 1, be equipped with eccentric ring 4 and rotor 5 in the pump chamber 3, extend swing arm 6 on one side of the 4 outer circumferences of eccentric ring, through cylindric lock swing joint between the opposite side of the 4 outer circumferences of eccentric ring and the 3 inner walls of pump chamber. As shown in fig. 2, a return spring 7 is arranged between the swing arm 6 and the inner wall of the pump cavity 3, one end of the return spring 7 abuts against the swing arm 6, the other end abuts against the inner wall of the pump body 1, an oil inlet 8 and an oil outlet 9 are arranged on the pump body 1, the oil inlet 8 and the oil outlet 9 are both communicated with the pump cavity 3, the oil outlet 9 is communicated with the pump cavity 3 to form an oil passage 10, engine oil entering from the oil inlet 8 passes through the pump cavity 3 and enters the oil passage 10 from one side of the eccentric ring 4, and the engine oil is then discharged from the oil outlet 9 through the oil; the other oil outlet route is that the eccentric ring 4 close to the oil channel 10 is provided with a through hole 11, the through hole 11 penetrates through two side surfaces of the eccentric ring 4, so that the through hole 11 is communicated with the oil channel 10, the pump cover 2 close to the through hole 11 is provided with a cavity, the cavity and the side wall of the eccentric ring 4 form an oil cavity 12, the oil cavity 12 is communicated with the through hole 11, the engine oil entering from the oil inlet 8 enters the pump cavity 3, part of the engine oil enters the oil cavity 12 from the other side of the eccentric ring 4, enters the through hole 11 after exiting from the oil cavity 12, and then exits from the through hole 11 and then merges into the oil channel 10, namely, two oil channels all merge into the oil channel.
In addition, the radial dimension of the oil cavity 12 is larger than the radial dimension of the through hole 11, so that the engine oil in the oil cavity 12 can smoothly enter the through hole 11, the oil accumulation in the oil cavity 12 is prevented from affecting the whole oil outlet effect, and similarly, the radial dimension of the inlet of the oil passage 10 is larger than or equal to the radial dimension of the through hole 11, so that the engine oil coming out of the through hole 11 can smoothly flow into the oil passage 10, and the engine oil flowing out of the through hole 11 is prevented from being blocked.
The inner wall of the oil duct 10 is a smooth curved surface, so that engine oil can flow smoothly, and resistance is reduced to the greatest extent.
While the above is directed to the preferred embodiment of the present invention, it is not intended that it be limited, except as by the appended claims. The present invention is not limited to the above embodiments, and the specific structure thereof allows for changes, all the changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.
Claims (4)
1. The large-displacement oil pump with double-sided oil outlet comprises a pump body and a pump cover matched with the pump body, wherein a pump cavity is arranged in the pump body, an eccentric ring and a rotor are arranged in the pump cavity, a swing arm extends out of one side of the outer circumferential wall of the eccentric ring, a reset spring is arranged between the swing arm and the inner wall of the pump cavity, one end of the reset spring is abutted against the swing arm, the other end of the reset spring is abutted against the inner wall of the pump body, an oil inlet and an oil outlet are arranged on the pump body, and are both communicated with the pump cavity.
2. The double-sided oil outlet large-displacement oil pump according to claim 1, characterized in that: the other side of the outer circumferential wall of the eccentric ring is movably connected with the inner wall of the pump cavity through a cylindrical pin.
3. The double-sided oil outlet large-displacement oil pump according to claim 1, characterized in that: the radial size of the oil duct inlet is larger than or equal to the radial size of the through hole, and the radial size of the oil cavity is larger than the radial size of the through hole.
4. The double-sided oil outlet large-displacement oil pump according to claim 1 or 3, characterized in that: the inner wall of the oil duct is a smooth curved surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922115130.0U CN211780119U (en) | 2019-11-29 | 2019-11-29 | Large-displacement oil pump capable of achieving double-side oil outlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922115130.0U CN211780119U (en) | 2019-11-29 | 2019-11-29 | Large-displacement oil pump capable of achieving double-side oil outlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211780119U true CN211780119U (en) | 2020-10-27 |
Family
ID=72961229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922115130.0U Active CN211780119U (en) | 2019-11-29 | 2019-11-29 | Large-displacement oil pump capable of achieving double-side oil outlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211780119U (en) |
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2019
- 2019-11-29 CN CN201922115130.0U patent/CN211780119U/en active Active
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