CN208365174U - Half built-in compact lubricating oil pump - Google Patents
Half built-in compact lubricating oil pump Download PDFInfo
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- CN208365174U CN208365174U CN201821050078.4U CN201821050078U CN208365174U CN 208365174 U CN208365174 U CN 208365174U CN 201821050078 U CN201821050078 U CN 201821050078U CN 208365174 U CN208365174 U CN 208365174U
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- oil
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- oil duct
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Abstract
The utility model discloses a kind of half built-in compact lubricating oil pump, including shell, rotor cover board, outer rotor and internal rotor.Shell is fixedly connected by bolt with the cylinder body end face of cylinder block；Rotor cover board is located between the end face of shell and the cavity floor of cylinder body cavity, and the end face and cavity floor of rotor cover board and shell fit closely, to separate high-voltage oil cavity out and low pressure oil pocket；Outer rotor is set between shell and rotor cover board；Internal rotor is set between shell and rotor cover board, and is located at the inside of outer rotor；Wherein the high-pressure oil duct of high-voltage oil cavity connection cylinder block, low pressure oil pocket are connected to the low pressure oil duct of cylinder block；Machine oil is sucked into after the pressurization of low pressure oil pocket from low pressure oil duct and is delivered to high-pressure oil duct from high-voltage oil cavity by the mutual rotation for wherein passing through outer rotor and internal rotor.The half built-in compact fuel pump structure of the utility model is compact, can reduce engine package size, improves mating adaptability.
Description
Technical field
The utility model is about automotive engine applications, especially with regard to a kind of half built-in compact lubricating oil pump.
Background technique
Machine oil pumping action is forcibly to be sent to the moving surface of each part of engine after machine oil is increased to certain pressure
On, reduce the abrasion and engine power consumption penalty on each corresponding moving parts surface of engine.
General lubricating oil pump, be with engine cylinder block flush arrangement, structure is simple, but space utilization rate is obviously not
It is enough compact, cause engine package size bigger than normal, mating adaptability reduces.
Lubricating oil pump and engine cylinder block flush arrangement, structure is simple, but space utilization rate is obviously not compact enough, leads
Cause engine package size bigger than normal, mating adaptability reduces.
The information disclosed in the background technology section is intended only to increase the understanding to the general background of the utility model, and
It is not construed as recognizing or implying in any form that information composition is already known to those of ordinary skill in the art existing
Technology.
Utility model content
The purpose of this utility model is to provide a kind of half built-in compact lubricating oil pump, can overcome the prior art
Drawbacks described above keeps engine space more compact, mating more adaptable.
To achieve the above object, the utility model provides a kind of half built-in compact lubricating oil pump comprising shell turns
Sub- cover board, outer rotor and internal rotor.A part of shell is embedded in the cylinder body cavity of cylinder block, and shell passes through bolt and gas
The cylinder body end face of cylinder body is fixedly connected；Rotor cover board is located between the end face of shell and the cavity floor of cylinder body cavity, rotor
The end face and cavity floor of cover board and shell fit closely, to separate high-voltage oil cavity out and low pressure oil pocket；Outer rotor setting
Between shell and rotor cover board；Internal rotor is set between shell and rotor cover board, and is located at the inside of outer rotor；It is wherein high
Pumping cavity is connected to the high-pressure oil duct of cylinder block, and low pressure oil pocket is connected to the low pressure oil duct of cylinder block；Wherein pass through outer rotor and interior turn
Machine oil is sucked into after the pressurization of low pressure oil pocket from low pressure oil duct and is delivered to high-pressure oil duct from high-voltage oil cavity by the mutual rotation of son.
In a preferred embodiment, there is gap between the inner side end of shell and the cylinder body end face of cylinder block,
Gap can guarantee that rotor cover board is effectively bonded under the action of bolt with the end face of shell and cavity floor.
In a preferred embodiment, half built-in compact lubricating oil pump further includes safety valve and pressure regulator valve, safety
The central axis of valve and pressure regulator valve is parallel to each other.
In a preferred embodiment, pressure regulator valve includes excitation oil duct, pressure regulation valve body, pressure spring and relief hole.
The main oil gallery pressure of one end connection cylinder block of oil duct is motivated to feed back oil duct；One end of pressure regulation valve body has valve body end face, valve body
End face blocks the other end of excitation oil duct, has gas pressure relief slot on pressure regulation valve body, gas pressure relief slot is connected to high-voltage oil cavity；Pressure spring supports
The other end for peaking at pressure regulation valve body, by the tension of pressure spring to keep valve body end face to the envelope of the other end of excitation oil duct
It is stifled；Relief hole is connected to low pressure oil pocket, is blocked under relief hole normality by pressure regulation valve body.
In a preferred embodiment, when motivating the engine oil pressure of oil duct to be greater than the tension of pressure spring, machine oil is pushed away
Dynamic pressure regulation valve body moves backward, so that the gas pressure relief slot on pressure regulation valve body is connected to relief hole, the machine oil of high-voltage oil cavity at this time
It is back to high-voltage oil cavity by gas pressure relief slot and relief hole, to adjust the engine oil pressure of high-voltage oil cavity.
In a preferred embodiment, half built-in compact lubricating oil pump further includes pressure release oil duct, is connected to and starts
The oil sump of machine, one end of safety valve are connected to pressure release oil duct, and the other end of safety valve is connected to high-voltage oil cavity, and safety valve includes
Steel ball and pressure release spring.Steel ball is set at safety valve and high-voltage oil cavity communication port；Pressure release spring supports steel ball, so that steel ball
The connection of blocking high-pressure oil pocket and pressure release oil duct.
In a preferred embodiment, when the engine oil pressure of high-voltage oil cavity is greater than the pressure release tension force of spring of safety valve
When, steel ball is open, and causes high-voltage oil cavity to be connected to pressure release oil duct, machine oil is back to oil sump by pressure release oil duct.
In a preferred embodiment, pressure release tension force of spring is greater than the tension of pressure spring.
In a preferred embodiment, half built-in compact lubricating oil pump further includes guide, and one end is inserted in cylinder
In the main oil gallery pressure feedback oil duct of body, the other end is inserted in the excitation oil duct of pressure regulator valve, and the outside at the both ends of guide has
Seal groove, seal groove are located in excitation oil duct and main oil gallery pressure feedback oil duct.
In a preferred embodiment, half built-in compact lubricating oil pump further includes O-ring, and O-ring is set to sealing
Sealing in slot for guide and excitation oil duct and main oil gallery pressure feedback oil duct.
Compared with prior art, half built-in compact lubricating oil pump according to the present utility model have it is following the utility model has the advantages that
Its is compact-sized, and space utilization rate is high, can effectively reduce engine package size, greatly improve mating adaptability.
Detailed description of the invention
Fig. 1 is to be illustrated according to the half built-in compact lubricating oil pump of one embodiment of the utility model in the layout of cylinder block
Figure.
Fig. 2 is the connection section view of the half built-in compact lubricating oil pump and cylinder block according to one embodiment of the utility model
Schematic diagram.
Fig. 3 is the partial enlargement diagram at the C of Fig. 2.
Fig. 4 is the pressure regulator valve and safety valve according to the half built-in compact lubricating oil pump of one embodiment of the utility model
Principle schematic diagram.
Fig. 5 is the guide structural schematic diagram according to the half built-in compact lubricating oil pump of one embodiment of the utility model.
Main appended drawing reference explanation:
1- cylinder block 11- cylinder body cavity, 12- high-pressure oil duct, 13- low pressure oil duct, 14- cylinder body end face, 15- main oil gallery pressure
Feed back oil duct, 16- cavity floor, 2- lubricating oil pump, 21- rotor cover board, 22- outer rotor, 23- internal rotor, 24- safety valve, 241-
Steel ball, 242- pressure release spring, 25- shell, 251- inner side end, 26- pressure regulator valve, 261- valve body end face, 262- pressure regulation valve body,
263- pressure spring, 264- gas pressure relief slot, 265- relief hole, 27- high-voltage oil cavity, 28- low pressure oil pocket, 2A- motivate oil duct, and 2B- is let out
Pressure oil road.
Specific embodiment
With reference to the accompanying drawing, specific embodiment of the present utility model is described in detail, it is to be understood that this is practical
Novel protection scope is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
As shown in Figure 1 to Figure 2, Fig. 1 is existed according to the half built-in compact lubricating oil pump of one embodiment of the utility model
The schematic layout pattern of cylinder block.Fig. 2 is the half built-in compact lubricating oil pump and cylinder according to one embodiment of the utility model
The connection schematic cross-sectional view of body.According to a kind of half built-in compact lubricating oil pump of the preferred embodiments of the present invention, packet
Include shell 25, rotor cover board 21, outer rotor 22 and internal rotor 23.
Referring to Fig. 2, Fig. 3 is the partial enlargement diagram at the C of Fig. 2.In some embodiments, one of shell 25
Dividing and is embedded in the cylinder body cavity 11 of cylinder block 1, shell 25 is fixedly connected by bolt 3 with the cylinder body end face 14 of cylinder block 1, this
The design of sample can reduce lubricating oil pump 2 engine shaft to occupied space.Rotor cover board 21 be located in the end face of shell 25 with
Between the cavity floor 16 of cylinder body cavity 11, rotor cover board 21 is fitted closely with the end face of shell 25 and cavity floor 16, with
Separate high-voltage oil cavity 27 out and low pressure oil pocket 28.Outer rotor 22 is set between shell 25 and rotor cover board 21；Internal rotor 23
It is set between shell 25 and rotor cover board 21, and is located at the inside of outer rotor 22；Wherein high-voltage oil cavity 27 is connected to cylinder block 1
High-pressure oil duct 12, low pressure oil pocket 28 are connected to the low pressure oil duct 13 of cylinder block 1.Lubricating oil pump 2 is by machine oil from oily bottom when engine operates
Shell enters 2 low pressure oil pocket 28 of lubricating oil pump along the low pressure oil duct 13 of cylinder block 1, in the collective effect of internal rotor 23, outer rotor 22
Under become high pressure oil and come out from the high-voltage oil cavity 27 of lubricating oil pump 2 to enter 1 high-pressure oil duct 12 of cylinder block, and then be sent to engine each zero
On the moving surface of part, the cooling and lubricating for playing machine oil is made.
As shown in figure 3, in some embodiments, for the cavity floor for guaranteeing rotor of engine oil pump cover board 21 and cylinder block 1
16 effective fitting, thus separate high-voltage oil cavity 27 out and low pressure oil pocket 28, the inner side end 251 and cylinder of 2 shell 25 of lubricating oil pump
Body end face 14 remains with certain interval, the gap about 0.1~0.4mm.It is thick in 2 rotor cover board of lubricating oil pump 21 if gap is too small
When degree, the boss height of 2 shell 25 of lubricating oil pump, 11 depth common bias of cylinder body cavity, it is likely to result in 2 rotor cover board of lubricating oil pump
21 with cylinder block 12 there are gap, cause 2 charge oil pressure of lubricating oil pump insufficient.If gap is excessive, more than the installation axial direction of bolt 3
Under the action of cinder power, the deformation that may result in the shell 25 of lubricating oil pump 2 is serious, thus the outer rotor 22 and machine oil of lubricating oil pump 2
Pump 2 25 gap of shell it is too small, 2 outer rotor 22 of lubricating oil pump wear it is abnormal or even stuck, cause lubricating oil pump 2 fail.
As shown in Figure 1 and Figure 4, Fig. 4 is the half built-in compact lubricating oil pump according to one embodiment of the utility model
The principle schematic diagram of pressure regulator valve and safety valve.In some embodiments, half built-in compact lubricating oil pump 2 further includes peace
The central axis of full valve 24 and pressure regulator valve 26, safety valve 24 and pressure regulator valve 26 is parallel to each other, and safety valve 24, pressure regulator valve 26 arrive cylinder
The distance in body end face 14 is essentially identical.
In some embodiments, pressure regulator valve 26 includes excitation oil duct 2A, pressure regulation valve body 262, pressure spring 263 and lets out
Press hole 265.The main oil gallery pressure of one end connection cylinder block 1 of oil duct 2A is motivated to feed back oil duct 15.One end of pressure regulation valve body 262 has
There is valve body end face 261, valve body end face 261 blocks the other end of excitation oil duct 2A, has gas pressure relief slot 264 on pressure regulation valve body 262, let out
Indent 264 is connected to high-voltage oil cavity 27.Pressure spring 263 is resisted against the other end of pressure regulation valve body 262, by pressure spring 263
Tension to keep the closure of the other end of 261 pairs of valve body end face excitation oil duct 2A.Relief hole 265 is connected to low pressure oil pocket 28,
It is blocked under 265 normality of relief hole by pressure regulation valve body 262.In some embodiments, when the engine oil pressure of excitation oil duct 2A is greater than
When the tension of pressure spring 263, machine oil pushes pressure regulation valve body 262 to move backward, so that the gas pressure relief slot on pressure regulation valve body 262
264 are connected to relief hole 265, and the machine oil of high-voltage oil cavity 27 is back to low pressure oil pocket by gas pressure relief slot 264 and relief hole 265 at this time
28, the engine oil pressure of adjustable high-voltage oil cavity 27.
Referring again to Fig. 4, in some embodiments, half built-in compact lubricating oil pump 2 further includes pressure release oil duct 2B,
It is connected to the oil sump of engine, one end of safety valve 24 is connected to pressure release oil duct 2B, and the other end of safety valve 24 is connected to height
Pumping cavity 27, safety valve 24 include steel ball 241 and pressure release spring 242.Steel ball 241 is set to safety valve 24 and high-voltage oil cavity 27
At communication port；Pressure release spring 242 supports steel ball 241, so that the connection of 241 blocking high-pressure oil pocket 27 and pressure release oil duct 2B of steel ball.
In some embodiments, when the engine oil pressure of high-voltage oil cavity 27 is greater than the tension of the pressure release spring 242 of safety valve 24, steel ball
241 are open, and high-voltage oil cavity 27 is caused to be connected to pressure release oil duct 2B, and machine oil is back to oil sump by pressure release oil duct 2B, reduce
The pressure of high-voltage oil cavity 27 reaches pressure release, guarantees the effect of system safety.
In some embodiments, the tension of pressure release spring 242 is greater than the tension of pressure spring 263.When pressure regulator valve 26 by
When its flow restriction is not able to satisfy the pressure adjustment of high-voltage oil cavity 27, engine remains in operation at this time, will lead to high-voltage oil cavity
27 pressure continues to increase, when the pressure of high-voltage oil cavity 27 is greater than the tension of the pressure release spring 242 of safety valve 24, safety valve 24
It is opened, it is ensured that the operational safety of lubricating oil pump 2.
As shown in figure 5, Fig. 5 is the guide knot according to the half built-in compact lubricating oil pump of one embodiment of the utility model
Structure schematic diagram.In some embodiments, half built-in compact lubricating oil pump further includes guide 5, and one end is inserted in cylinder block 1
Main oil gallery pressure feedback oil duct 15 in, the other end is inserted in the excitation oil duct 2A of pressure regulator valve 26, the outside at the both ends of guide 5
With seal groove, seal groove is located in excitation oil duct 2A and main oil gallery pressure feedback oil duct 15.In a preferred embodiment party
In formula, half built-in compact lubricating oil pump 2 further includes O-ring 4, and O-ring 4 is set in seal groove for guide 5 and excitation oil
The sealing of road 2A and main oil gallery pressure feedback oil duct 15.
In conclusion half built-in compact lubricating oil pump according to the present utility model have compared with prior art it is following excellent
Point: its is compact-sized, and space utilization rate is high, can effectively reduce engine package size, greatly improve mating adaptability.
The description of the aforementioned specific exemplary embodiment to the utility model is in order to illustrate and illustration purpose.These
Description is not wishing to for the utility model to be limited to disclosed precise forms, and it will be apparent that according to the above instruction, can carry out
It is many to change and change.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the utility model
And its practical application, so that those skilled in the art can be realized and utilize a variety of different examples of the utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shapes
Formula is limited.
Claims (10)
1. a kind of half built-in compact lubricating oil pump characterized by comprising
Shell, part of it are embedded in the cylinder body cavity of cylinder block, and the shell passes through the cylinder body of bolt and the cylinder block
End face is fixedly connected；
Rotor cover board is located between the end face of the shell and the cavity floor of the cylinder body cavity, the rotor cover board
It is fitted closely with the end face of the shell and the cavity floor, to separate high-voltage oil cavity out and low pressure oil pocket；
Outer rotor is set between the shell and the rotor cover board；And
Internal rotor is set between the shell and the rotor cover board, and is located at the inside of the outer rotor；
Wherein the high-voltage oil cavity is connected to the high-pressure oil duct of the cylinder block, and the low pressure oil pocket is connected to the low pressure of the cylinder block
Oil duct；
Wherein by the mutual rotation of the outer rotor and the internal rotor, machine oil is sucked into from the low pressure oil duct described low
The high-pressure oil duct is delivered to from the high-voltage oil cavity after pumping cavity pressurization.
2. half built-in compact lubricating oil pump as described in claim 1, which is characterized in that the inner side end of the shell and institute
Stating has gap between the cylinder body end face of cylinder block, the gap for the rotor cover board and the shell end face with
And the cavity floor is bonded under the action of the bolt.
3. half built-in compact lubricating oil pump as described in claim 1, which is characterized in that further include safety valve and pressure regulation
The central axis of valve, the safety valve and the pressure regulator valve is parallel to each other.
4. half built-in compact lubricating oil pump as claimed in claim 3, which is characterized in that the pressure regulator valve includes:
Oil duct is motivated, one end is connected to the main oil gallery pressure feedback oil duct of the cylinder block；
Pressure regulation valve body, one end have valve body end face, and the valve body end face blocks the other end of the excitation oil duct, the pressure regulation
There is gas pressure relief slot, the gas pressure relief slot is connected to the high-voltage oil cavity on valve body；
Pressure spring is resisted against the other end of the pressure regulation valve body, the valve is kept by the tension of the pressure spring
Closure of the body end in face of the other end of the excitation oil duct；And
Relief hole is connected to low pressure oil pocket, is blocked under the relief hole normality by the pressure regulation valve body.
5. half built-in compact lubricating oil pump as claimed in claim 4, which is characterized in that when the oil pressure of the excitation oil duct
When power is greater than the tension of the pressure spring, machine oil pushes the pressure regulation valve body to move backward, so that the pressure regulation valve body
On the gas pressure relief slot be connected to the relief hole, the machine oil of the high-voltage oil cavity passes through the gas pressure relief slot and the pressure release at this time
Hole is back to high-voltage oil cavity, to adjust the engine oil pressure of the high-voltage oil cavity.
6. half built-in compact lubricating oil pump as claimed in claim 4, which is characterized in that it further include pressure release oil duct, connection
In the oil sump of engine, one end of the safety valve is connected to the pressure release oil duct, and the other end of the safety valve is connected to
The high-voltage oil cavity, the safety valve include:
Steel ball is set at the safety valve and the high-voltage oil cavity communication port；And
Pressure release spring supports the steel ball, so that the steel ball blocks the connection of the high-voltage oil cavity Yu the pressure release oil duct.
7. half built-in compact lubricating oil pump as claimed in claim 6, which is characterized in that when the oil pressure of the high-voltage oil cavity
Power be greater than the safety valve the pressure release tension force of spring when, the steel ball is open, cause the high-voltage oil cavity with it is described
The connection of pressure release oil duct, machine oil are back to the oil sump by the pressure release oil duct.
8. half built-in compact lubricating oil pump as claimed in claim 7, which is characterized in that the pressure release tension force of spring is greater than
The tension of the pressure spring.
9. half built-in compact lubricating oil pump as claimed in claim 4, which is characterized in that further include guide, one end plugs
In in the main oil gallery pressure feedback oil duct of the cylinder block, the other end is inserted in the excitation oil duct of the pressure regulator valve, institute
The outside for stating the both ends of guide has seal groove, and the seal groove is located at the excitation oil duct and the main oil gallery pressure is anti-
It presents in oil duct.
10. half built-in compact lubricating oil pump as claimed in claim 9, which is characterized in that it further include O-ring, the O-ring
It is set to the sealing in the seal groove for the guide and the excitation oil duct and main oil gallery pressure feedback oil duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821050078.4U CN208365174U (en) | 2018-07-03 | 2018-07-03 | Half built-in compact lubricating oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821050078.4U CN208365174U (en) | 2018-07-03 | 2018-07-03 | Half built-in compact lubricating oil pump |
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| Publication Number | Publication Date |
|---|---|
| CN208365174U true CN208365174U (en) | 2019-01-11 |
Family
ID=64924502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821050078.4U Active CN208365174U (en) | 2018-07-03 | 2018-07-03 | Half built-in compact lubricating oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208365174U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561739A (en) * | 2018-07-03 | 2018-09-21 | 广西玉柴机器股份有限公司 | Half built-in compact lubricating oil pump |
-
2018
- 2018-07-03 CN CN201821050078.4U patent/CN208365174U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561739A (en) * | 2018-07-03 | 2018-09-21 | 广西玉柴机器股份有限公司 | Half built-in compact lubricating oil pump |
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