CN211821677U

CN211821677U - Oil pump

Info

Publication number: CN211821677U
Application number: CN201922339172.2U
Authority: CN
Inventors: 张志权; 董方龙; 任利东; 刘志平; 安铭
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-10-30
Anticipated expiration: 2029-12-20

Abstract

The utility model discloses diesel engine technical field, concretely relates to oil pump. The oil pump of the utility model comprises a pump body and an air outlet valve, wherein an oil inlet cavity and an oil outlet cavity are arranged in the pump body, and an air outlet channel is arranged at the bottom of the oil outlet cavity; the air outlet valve is positioned in the air outlet channel and comprises a valve core capable of moving along the air outlet channel. The utility model discloses an among the oil pump, the ventiduct has been seted up to the chamber bottom that produces oil, and the air outlet valve is located the ventiduct, and the case removes along the ventiduct, and quick exhaust gas when not having machine oil lets in machine oil, and the ventiduct is pushed down to the case under the pressure of machine oil, closes the ventiduct and can not produce oil, with gas outgoing fast, reaches the effect of building the pressure fast.

Description

Oil pump

Technical Field

The utility model discloses diesel engine technical field, concretely relates to oil pump.

Background

When a diesel engine is started, an oil pump needs to go through a process of firstly sucking air and then sucking oil, and the oil pump with the existing structure needs to discharge the air through an oil cooler, an oil filter and a bearing bush gap.

The pump air backpressure of the oil pump in the prior art is high, and air in the oil suction pipe and the oil pump cannot be quickly discharged, so that the pressure build-up time of a lubricating system of a diesel engine is too long, and the reliability of the machine is adversely affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the pump gas backpressure of current prior art oil pump is higher at least, can't be fast with the air discharge of inhaling in oil pipe and the oil pump. The purpose is realized by the following technical scheme:

the utility model provides an oil pump in a first aspect, which comprises a pump body and an air outlet valve, wherein an oil inlet cavity and an oil outlet cavity are arranged in the pump body, and an air outlet channel is arranged at the bottom of the oil outlet cavity;

the air outlet valve is positioned in the air outlet channel and comprises a valve core capable of moving along the air outlet channel.

According to the utility model discloses an among the oil pump, the ventiduct has been seted up to the chamber bottom that produces oil, and the air outlet valve is located the ventiduct, and the case removes along the ventiduct, and quick exhaust gas when not having machine oil lets in machine oil, and the valve core pushes down the ventiduct under the pressure of machine oil, closes the ventiduct and can not produce oil, with gas outgoing fast, reaches the effect of building the pressure fast.

In addition, according to the utility model discloses an oil pump can also have following additional technical characterstic:

the utility model discloses an in some embodiments, the ventiduct is the step form, the ventiduct is including the first passageway, second passageway and the third passageway that communicate in proper order, the width of first passageway, second passageway and third passageway reduces in proper order, the case is located in the first passageway.

In some embodiments of the present invention, the air outlet valve further comprises an elastic member, one end of the elastic member is connected to the bottom of the second channel, and the other end of the elastic member is connected to the valve core.

In some embodiments of the present invention, the width of the valve element is greater than the width of the second channel.

In some embodiments of the present invention, a transition channel is disposed between the first channel and the second channel, and a width of the transition channel is gradually reduced from the first channel to the second channel.

In some embodiments of the present invention, a retainer ring is disposed in the first passage, and a hole is disposed on the retainer ring.

In some embodiments of the present invention, the retainer ring is a metal retainer ring.

In some embodiments of the present invention, the valve element is spherical.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:

fig. 1 schematically shows a bottom schematic view of an oil pump according to an embodiment of the present invention;

FIG. 2 schematically illustrates a cross-sectional view A-A of FIG. 1;

fig. 3 schematically shows a partial enlarged schematic view of B in fig. 2.

The reference numerals in the drawings denote the following:

1: a pump body; 2: an oil inlet cavity; 3: an oil outlet cavity; 4: a valve core; 5: an air outlet valve; 6: a spring; 7: a retainer ring; 8: an air outlet channel;

11: a first channel; 12: a second channel; 13: a third channel; 14: a transition passage.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The utility model discloses an aspect provides an oil pump, and this oil pump can guarantee that diesel engine lubricating system builds pressure fast.

As shown in fig. 1 and 2, the oil pump in this embodiment includes a pump body and an air outlet valve,

an oil inlet cavity 2 and an oil outlet cavity 3 are arranged in the pump body 1, and an air outlet channel 8 is arranged at the bottom of the oil outlet cavity 3;

the air outlet valve 5 is positioned in the air outlet channel 8, and the air outlet valve 5 comprises a valve core 4 capable of moving along the air outlet channel 8.

The oil inlet cavity 2 and the oil outlet cavity 3 are respectively arranged at two sides of the pump body 1.

The bottom of the oil outlet cavity 3 is provided with an air outlet channel 8, the air outlet valve 5 is positioned in the air outlet channel 8, the valve core 4 moves along the air outlet channel 8, gas is quickly discharged when no engine oil exists, the valve core 4 presses the air outlet channel 8 under the pressure of the engine oil when the engine oil is introduced, the air outlet channel 8 is closed, oil cannot be discharged, and the gas is quickly discharged.

As shown in fig. 3, in some embodiments of the present invention, the air outlet channel 8 is step-shaped, the air outlet channel 8 includes a first channel 11, a second channel 12 and a third channel 13 which are sequentially connected, the widths of the first channel 11, the second channel 12 and the third channel 13 are sequentially reduced, and the valve core 4 is located in the first channel 11.

And a first channel 11, a second channel 12 and a third channel 13 which are communicated with each other are sequentially arranged from the bottom of the oil outlet cavity 3 along the length direction of the air outlet channel 8. To facilitate the spool 4 to block the second passage 12, the first passage 11, the second passage 12 and the third passage 13 are sequentially reduced in width.

In some embodiments of the present invention, the air outlet valve 5 further comprises an elastic member, one end of the elastic member is connected to the bottom of the second channel 12, and the other end of the elastic member is connected to the valve core 4.

The elastic component is a spring 6, and the stretching direction of the elastic component is the length direction of the air outlet channel 8.

In some embodiments of the present invention, the width of the valve core 4 is greater than the width of the second channel 12.

To facilitate the valve cartridge 4 to block the second passage 12, the width of the valve cartridge 4 is greater than the width of the second passage 12.

In some embodiments of the present invention, a transition channel 14 is disposed between the first channel 11 and the second channel 12, and the width of the transition channel 14 gradually decreases from the first channel 11 to the second channel 12.

The transition passage 14 is tapered so that the valve core 4 blocks the top of the second passage 12 in the direction of the transition passage 14.

In some embodiments of the present invention, a retainer 7 is disposed in the first passage 11, and a hole is disposed on the retainer 7.

The top of the valve core 4 is positioned in the hole, and the retainer ring 7 has a limiting effect on the valve core 4, so that the valve core 4 is prevented from deviating to other directions and only moves along the vertical direction.

In some embodiments of the present invention, the retainer 7 is a metal retainer 7. The metal retainer ring 7 has better blocking strength.

In some embodiments of the present invention, the valve element 4 is spherical. The spherical blocking effect is better.

The utility model discloses an oil pump, when the diesel engine just started, the oil pump need experience an air suction earlier, the process of machine oil suction again, during the air suction, gas is discharged through the ventiduct 8 of oil-out chamber 3, second passageway 12 is not plugged up under the effect of spring 6 to case 4 of air outlet valve 5, gas is in proper order through first passageway 11 and second passageway 12, discharge from third passageway 13, during the oil feed again, get into again and impress transition passageway 14 with case 4 in the first passageway 11, be located second passageway 12 top, case 4 seals second passageway 12, oil can not reveal.

To sum up, the utility model discloses an among the oil pump, the ventiduct 8 has been seted up to 3 bottoms in the chamber that produces oil, and air outlet valve 5 is located ventiduct 8, and case 4 removes along ventiduct 8, and quick exhaust gas when not having machine oil when letting in machine oil, case 4 pushes down ventiduct 8 under the pressure of machine oil, closes ventiduct 8 can not the oil-out, with gas outgoing fast, reaches the effect of building the pressure fast.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An oil pump is characterized by comprising a pump body and an air outlet valve,

an oil inlet cavity and an oil outlet cavity are arranged in the pump body, and an air outlet channel is formed in the bottom of the oil outlet cavity;

2. The oil pump of claim 1, wherein the gas outlet channel is stepped, the gas outlet channel comprises a first channel, a second channel and a third channel which are sequentially communicated, widths of the first channel, the second channel and the third channel are sequentially reduced, and the valve core is located in the first channel.

3. The oil pump of claim 2, wherein the outlet valve further comprises an elastic member, one end of the elastic member is connected to the bottom of the second passage, and the other end of the elastic member is connected to the valve element.

4. The oil pump of claim 2, wherein the spool has a width greater than a width of the second passage.

5. The oil pump according to claim 2, wherein a transition passage is provided between the first passage and the second passage, and a width of the transition passage gradually decreases from the first passage to the second passage.

6. The oil pump of claim 2, wherein a retainer ring is disposed within the first passage, the retainer ring having a hole disposed therein.

7. The oil pump of claim 6, wherein the retainer ring is a metal retainer ring.

8. The oil pump of claim 1, wherein the valve spool is spherical.