CN209469469U - A kind of machine oil pump gland - Google Patents
A kind of machine oil pump gland Download PDFInfo
- Publication number
- CN209469469U CN209469469U CN201822068235.0U CN201822068235U CN209469469U CN 209469469 U CN209469469 U CN 209469469U CN 201822068235 U CN201822068235 U CN 201822068235U CN 209469469 U CN209469469 U CN 209469469U
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- CN
- China
- Prior art keywords
- oil pump
- sealing ring
- positive stop
- lug boss
- stop lug
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Abstract
A kind of machine oil pump gland, machine oil pump gland are an elliptical seal rings, four positive stop lug boss are arranged in the inside of machine oil pump gland, positive stop lug boss is symmetrical arranged on the longitudinal centre line of machine oil pump gland and on cross central line.Medial lateral relative to previous sealing ring has positive stop lug boss, and this sealing ring only has inside to have positive stop lug boss.When being mounted on the seal groove of lubricating oil pump, it is bonded on the outside of sealing ring with lubricating oil pump seal groove inner wall, very big deformation will not occur for sealing ring.The structure of the utility model machine oil pump gland has positive stop lug boss to be changed to only inside by interior outside positive stop lug boss, so that sealing ring outer wall is bonded with oil pump seal groove when being assemblied in lubricating oil pump seal groove, in engine operating, there are the defects of sand holes to lead to oil leak for oil pump sealing groove bottom or cylinder block lower plane, guarantee that lubricating oil does not leak, is applied in technical field of automobile engine.
Description
Technical field
The utility model relates to the machine oil pump glands of one of technical field of automobile engine.
Background technique
Engine needs good lubrication when operating, and lubricating system is one of 5 big systems of engine, for engine
Normal operation plays a crucial role.Lubricating oil pump is the major part of lubricating system, plays and delivers lubricating oil to hair
The role of each part for needing to lubricate of motivation, once the fuel feeding of lubricating oil pump is out of joint, it will influencing entire engine just
Often work, will lead to the damage of engine when serious.
Lubricating oil pump will not only guarantee to deliver lubricating oil to each part for needing to lubricate at work, also guarantee
Each friction pair has enough flows and pressure.Lubricating oil pump is mounted in cylinder block, using sealing between lubricating oil pump and cylinder block
Circle sealing, if sealing ring poor sealing will lead to slot leakage of the machine oil between lubricating oil pump and cylinder block, once a leak occurs, main
The flow and oil pressure of oil duct will be less than required value, each to need the part lubricated that cannot get good lubrication, undesirable lubrication
It will aggravate the abrasion of engine, seriously affect the service life of engine, and make engine that abnormal sound, or even damage engine occur.
Currently, the sealing ring of lubricating oil pump has the structure of positive stop lug boss, this structure using sealing ring medial lateral
What is relied on is that sealing ring and the lubricating oil pump sealing gentle cylinder body lower plane of groove bottom fit closely and reach sealing purpose.This structure
The disadvantage is that the deformation of sealing ring will affect the compression ratio and filling of sealing ring firstly, sealing ring has deformation under oil pressure effect
The variation of rate, compression ratio and filling rate can seriously affect the sealing effect of sealing ring.Secondly, if cylinder block lower plane or machine oil
Pump seal groove bottom machining accuracy is not high, and roughness is excessive, or there are sand holes, will lead to poor sealing, and lubricating oil can be from upper and lower
Two face leakages cause lubricating oil that can drain to outside because there are gaps between lubricating oil pump seal groove inner wall on the outside of sealing ring.
Therefore, developing a kind of machine oil pump gland is always new issue anxious to be resolved.
Utility model content
The purpose of this utility model is to provide a kind of machine oil pump glands, which has clever structure, in oil
Deflection is small under pressure acts on, and sealing ring is functional, will not leak in engine operation process, sealed reliable.
Purpose of the utility model is realized as follows: a kind of machine oil pump gland, machine oil pump gland is an ellipse
Four positive stop lug boss are arranged in the inside of machine oil pump gland in shape sealing ring, and positive stop lug boss is in the longitudinal direction of machine oil pump gland
It is symmetrical arranged on heart line and on cross central line.
The utility model is characterized by its structure.Its operation principle and using method is, relative to previous sealing ring
Medial lateral have a positive stop lug boss, this sealing ring only has inside to have positive stop lug boss.When being mounted on the seal groove of lubricating oil pump,
It is bonded on the outside of sealing ring with lubricating oil pump seal groove inner wall, so, under oil pressure effect, very big deformation will not occur for sealing ring.And
And it is lower than outside on the inside of seal groove in lubricating oil pump, in machine oil pump work, because there is seam on the inside of seal groove between cylinder block
Gap, lubricating oil can be contacted with sealing ring rapidly, can be bonded with seal groove under the action of oil pressure, on the outside of sealing ring it is even closer,
So the lateral surface of sealing ring can also play sealing function other than sealing function is played in sealing ring upper and lower surfaces.Lubricating oil pump
Only in inside there are four positive stop lug boss, outside infinite place assembles 4 boss on the inside of rear sealing ring and is stuck in the structure of sealing ring
In seal groove, sealing ring is effectively prevent to fall off.Under the snap action of boss, sealing ring lateral surface is closely pasted with seal groove inner wall
It closes.When engine operation, under oil pressure effect, obvious deformation will not occur for sealing ring, guarantee the compression ratio and filling of sealing ring
Rate is almost unchanged, guarantees that the sealing effect of sealing ring is constant.In engine start moment, because being lower than on the inside of lubricating oil pump upper seal
Outside can be such that lubricating oil contacts with sealing ring rapidly, in this way, sealing ring lateral surface and seal groove are snugly under oil pressure effect
Can be even closer, so that sealing ring side can also play the role of sealing.Width and lubricating oil pump seal groove width at sealing ring boss
Spend identical rather than bigger, the purpose designed in this way is easy for the installation of sealing ring, prevents from improper sealing ring being caused to turn over because assembling
Side causes the compression ratio deficiency of sealing ring to eventually lead to oil leak.
Compared with prior art, the structure with machine oil pump gland has limit by interior outside for a kind of machine oil pump gland
Boss be changed to only inside have positive stop lug boss so that sealing ring outer wall when being assemblied in lubricating oil pump seal groove with oil pump
Seal groove fitting, in engine operating, sealing ring does not have too big deformation under oil pressure effect, the filling rate of sealing ring and
Less, the sealing performance of sealing ring not will receive too big influence for compression ratio variation, and sealing ring lateral surface can also be under oil pressure effect
It is bonded with oil pump seal groove even closer, plays good sealing function, this is not available for previous sealing ring, and oil pump is close
There are the defects of sand holes to lead to oil leak for sealing groove bottom surface or cylinder block lower plane, because of the sealing function of sealing ring lateral surface,
Also it can guarantee the advantages that lubricating oil does not leak, will be widely used in technical field of automobile engine.
Detailed description of the invention
The utility model is described in detail with reference to the accompanying drawings and embodiments.
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Fig. 3 is the utility model installation site figure in lubricating oil pump.
Fig. 4 is the B-B cross-sectional view of Fig. 3.
Specific embodiment
Referring to attached drawing, a kind of machine oil pump gland, machine oil pump gland 2 is an elliptical seal ring, close in lubricating oil pump
The inside of seal 2 is arranged four positive stop lug boss 1, and positive stop lug boss 1 is on the longitudinal centre line of machine oil pump gland 2 and transverse center
It is symmetrical arranged on line.
A kind of operation principle and using method of machine oil pump gland is, outside the inside relative to previous sealing ring
There is positive stop lug boss in side, and this sealing ring only has inside to have positive stop lug boss.When being mounted on the seal groove of lubricating oil pump 3, sealing ring
Outside is bonded with 3 seal groove inner wall of lubricating oil pump, so, under oil pressure effect, very big deformation will not occur for sealing ring.And machine oil
It is lower than outside on the inside of seal groove on pump 3, when lubricating oil pump 3 works, because there are gap, profits between cylinder block on the inside of seal groove
Lubricating oil can be contacted with sealing ring rapidly, can be bonded with seal groove under the action of oil pressure, on the outside of sealing ring it is even closer, so,
Other than sealing function is played in sealing ring upper and lower surfaces, the lateral surface of sealing ring can also play sealing function.Machine oil pump seal
The structure of circle 2 is only in inside there are four positive stop lug boss, outside infinite place, assemble 4 boss on the inside of rear sealing ring be stuck in it is close
In sealing groove, sealing ring is effectively prevent to fall off.Under the snap action of boss, sealing ring lateral surface is closely pasted with seal groove inner wall
It closes.When engine operation, under oil pressure effect, obvious deformation will not occur for sealing ring, guarantee the compression ratio and filling of sealing ring
Rate is almost unchanged, guarantees that the sealing effect of sealing ring is constant.In engine start moment, because low on the inside of 3 upper seal of lubricating oil pump
In outside, lubricating oil can be made to contact with sealing ring rapidly, in this way, sealing ring lateral surface is bonded with seal groove under oil pressure effect
Ground can be even closer, so that sealing ring side can also play the role of sealing.Width and 3 seal groove of lubricating oil pump at sealing ring boss
Of same size rather than bigger, the purpose designed in this way is easy for the installation of sealing ring, prevents from leading to sealing ring because assembly is improper
Flange causes the compression ratio deficiency of sealing ring to eventually lead to oil leak.
Claims (1)
1. a kind of machine oil pump gland, it is characterised in that: machine oil pump gland is an elliptical seal ring, in machine oil pump seal
Four positive stop lug boss are arranged in the inside of circle, and positive stop lug boss is right on the longitudinal centre line of machine oil pump gland and on cross central line
Claim setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822068235.0U CN209469469U (en) | 2018-12-11 | 2018-12-11 | A kind of machine oil pump gland |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822068235.0U CN209469469U (en) | 2018-12-11 | 2018-12-11 | A kind of machine oil pump gland |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209469469U true CN209469469U (en) | 2019-10-08 |
Family
ID=68089121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822068235.0U Active CN209469469U (en) | 2018-12-11 | 2018-12-11 | A kind of machine oil pump gland |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209469469U (en) |
-
2018
- 2018-12-11 CN CN201822068235.0U patent/CN209469469U/en active Active
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