CN208365172U - A kind of secondary pressure change displacement oil pump - Google Patents
A kind of secondary pressure change displacement oil pump Download PDFInfo
- Publication number
- CN208365172U CN208365172U CN201820900915.1U CN201820900915U CN208365172U CN 208365172 U CN208365172 U CN 208365172U CN 201820900915 U CN201820900915 U CN 201820900915U CN 208365172 U CN208365172 U CN 208365172U
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- Prior art keywords
- oil
- spring
- oil pocket
- rotor
- pump
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 239000003921 oil Substances 0.000 abstract description 98
- 239000010687 lubricating oil Substances 0.000 abstract description 6
- 230000032683 aging Effects 0.000 abstract 1
- 239000004519 grease Substances 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Landscapes
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
本实用新型公开一种二级压力变排量机油泵，调节环与销轴铰接在泵体上，可绕销轴摆动；转子与驱动轴安装在调节环中，叶片随转子一同转动，并可沿滑槽向圆周侧滑动；与销轴铰接处相对的调节环外表面有三段与泵体滑动配合密封面，将泵体与调节环间分隔出近弹簧油腔、远弹簧油腔、摆转腔三个油腔，近弹簧油腔容积大于远弹簧油腔；发动机主油道与远弹簧油腔、近弹簧油腔相连通。当发动机低速工作时，近弹簧油腔进油，远弹簧油腔进油通道关闭；发动机高速工作时，近弹簧油腔、远弹簧油腔同时进油；调节环压缩复位弹簧绕销轴铰接处顺时针转动，调节转子与驱动轴在调节环中偏心距；实现机油泵变排量。以解决现有技术中普通的润滑油泵供油量随润滑油泵转速线性增长，高转速时过多的油量会增加功率消耗，并过多机油循环加速机油老化等问题。
The utility model discloses a two-stage pressure variable displacement oil pump. An adjusting ring and a pin shaft are hinged on a pump body and can swing around the pin shaft; Sliding to the circumferential side along the chute; the outer surface of the adjustment ring opposite to the hinge of the pin shaft has three sections sliding and matching the sealing surface with the pump body, which separates the pump body and the adjustment ring into a near-spring oil chamber, a far-spring oil chamber, and a swinging There are three oil cavities in the cavity, and the volume of the oil cavity near the spring is larger than that of the oil cavity far from the spring; the main oil passage of the engine is communicated with the oil cavity far from the spring and the oil cavity near the spring. When the engine works at low speed, oil is fed into the near spring oil cavity, and the oil inlet channel of the far spring oil cavity is closed; when the engine is working at high speed, oil is fed into the near spring oil cavity and the far spring oil cavity at the same time; the adjustment ring compresses the return spring at the hinged part of the pin shaft Rotate clockwise to adjust the eccentric distance between the rotor and the drive shaft in the adjustment ring; realize the variable displacement of the oil pump. In order to solve the problems in the prior art that the oil supply amount of the common lubricating oil pump increases linearly with the rotational speed of the lubricating oil pump, the excessive oil amount at high rotational speed will increase the power consumption, and the excessive oil circulation accelerates the aging of the oil.
Description
Technical field
The utility model belongs to mechanical lubrication and grease pump technical field, is related to a kind of secondary pressure change discharge capacity machine oil
Pump；Especially suitable for automotive engine lubrication.
Background technique
Common grease pump fuel delivery is with grease pump revolving speed linear increase；But automobile engine is in slow-speed of revolution operating condition,
Grease pump is needed to provide enough oil masses lubrication engine friction component, excessive oil mass will increase power and disappear when high revolving speed
Consumption, and excessive oil circulation accelerates aeronautic ATE；Inquiring into suitable for the change displacement oil pump of engine lubrication demand is engineering technology
The project of the continuous research and discovery of personnel.
Existing change displacement oil pump is as shown in Figure 1, including the pump housing 1, drive shaft 2, rotor 3, blade 4, adjusting ring 5, pin
Axis 6, adjusts sealing element 8 at reset spring 7；It adjusts ring and pin shaft is hingedly mounted on the pump housing, adjusting ring can swing around pin shaft；
Rotor is installed on the driving shaft, and rotor 3 and drive shaft 2 are mounted on and adjust in ring 5, has blade slide on rotor 3；Blade 4 is pacified
In the sliding slot of rotor 3, blade 4 rotates together with rotor 3, and can be under the action of the centrifugal force along the chute to circumference Slideslip；
There are two sections of sealing surfaces being slidably matched with the pump housing 1 in adjusting ring 5 outer surface opposite with 6 hinged place of pin shaft, and by the pump housing 1 and adjusts
Short round spring oil pocket 1a, over spring oil pocket two oil pockets of 1b are separated out between ring 5；Over spring oil pocket volume is greater than short round spring oil pocket；Hair
Motivation main oil gallery is connected with short round spring oil pocket, over spring；When low engine speed works, over spring oil pocket 1b, short round spring oil pocket
1a oil inlet simultaneously；When high engine speeds work, over spring oil pocket 1b oil inlet, short round spring oil pocket 1a oil inlet passage is closed, and adjusts ring 5
Compression reseting spring 7 is rotated clockwise around 6 hinged place of pin shaft, is adjusted rotor 3 and drive shaft 2 and is being adjusted the eccentricity in ring 5；It is real
Existing lubricating oil pump becomes discharge capacity.But over spring oil pocket 1b, short round spring oil pocket 1a oil inlet simultaneously, which rotate clockwise, adjusts ring 5, acts on multiple
Position spring 7；Reset spring 7 designs rigidity greatly, and adjusting owes sensitive.
Summary of the invention
The utility model discloses a kind of secondary pressures to become displacement oil pump, to solve lubricating oil common in the prior art
Oil pump feed amount is with grease pump revolving speed linear increase, and when high revolving speed, excessive oil mass will increase power consumption, and excessive machine oil follows
Ring accelerates the problems such as aeronautic ATE.
The utility model includes the pump housing, drive shaft, rotor, blade, adjusts ring, pin shaft, reset spring；Adjust ring and pin shaft
It is hingedly mounted on the pump housing, adjusting ring can swing around pin shaft；Rotor is installed on the driving shaft, and rotor and drive shaft are mounted on adjusting
In ring, there is blade slide on rotor；Blade is mounted in the sliding slot of rotor, and blade rotates together with rotor, and can be centrifuged
Along the chute to circumference Slideslip under power effect；The adjusting ring outer surface opposite with pin shaft hinged place has three sections to be slidably matched with the pump housing
Sealing surface, and by the pump housing and adjust interannular be separated out three short round spring oil pocket, over spring oil pocket, rotation chamber oil pockets, short round spring
Oil pocket volume is greater than over spring oil pocket；Engine main oil gallery is connected with over spring oil pocket, short round spring oil pocket.
The scheme of optimization is that, when low engine speed work, short round spring oil pocket oil inlet, over spring oil pocket oil inlet passage closes
It closes；When high engine speeds work, the oil inlet simultaneously of short round spring oil pocket, over spring oil pocket；Since short round spring oil pocket volume is greater than over
Spring oil pocket adjusts ring compression reseting spring and rotates clockwise around pin shaft hinged place, adjusts rotor and drive shaft in adjusting ring
Eccentricity；Realize that lubricating oil pump becomes discharge capacity.
The utility model further includes sealing element, and sealing element quantity is more than or equal to 3, be mounted on adjust ring outer surface with
On three sections of sealing surfaces that the pump housing is slidably matched；Guarantee the isolating seal between short round spring oil pocket, over spring oil pocket, rotation chamber.
The utility model has the following positive effects: when due to high engine speeds work, over spring oil pocket relative proximity spring oil
Chamber oil inlet is that negative role is offset to adjusting ring is rotated clockwise, and spring design rigidity is small；And compared with original technology, over
Spring oil pocket, short round spring oil pocket is small, and changeable flow adjustment is sensitiveer.
Detailed description of the invention
Fig. 1 is prior art construction schematic diagram；
Fig. 2 is the utility model structure diagram；
In figure: 1 pump housing, 2 drive shafts, 3 rotors, 4 blades, 5 adjusting rings, 6 pin shafts, 7 reset springs, 8 sealing element 1a are close
Spring oil pocket, 1b over spring oil pocket, 1c rotation chamber, 1d oil duct, 1e oil duct.
Specific embodiment
One embodiment of the utility model is described in detail below in conjunction with attached drawing.
The utility model embodiment is as shown in Fig. 2, including the pump housing 1, drive shaft 2, rotor 3, blade 4, adjusting ring 5, pin shaft
6, reset spring 7, sealing element 8；It adjusts ring 5 and pin shaft 6 is hingedly mounted on the pump housing 1, adjusting ring 5 can swing around pin shaft 6；Turn
On driving shaft 2, rotor 3 and drive shaft 2 are mounted on and adjust in ring 53 installation of son, have blade slide on rotor 3；Blade 4 is pacified
In the sliding slot of rotor 3, blade 4 rotates together with rotor 3, and can be under the action of the centrifugal force along the chute to circumference Slideslip；
There are three sections of sealing surfaces being slidably matched with the pump housing 1,8 quantity 3 of sealing element in adjusting ring 5 outer surface opposite with 6 hinged place of pin shaft
It is a, it is mounted on and adjusts on three sections of sealing surfaces that ring outer surface and the pump housing are slidably matched；It is close by being separated out between the pump housing 1 and adjusting ring 5
Tri- spring oil pocket 1a, over spring oil pocket 1b, rotation chamber 1c oil pockets, sealing element guarantee short round spring oil pocket, over spring oil pocket, pendulum
Turn the isolating seal between chamber.Oil duct 1d is connected with over spring oil pocket 1b, and oil duct 1e is connected with short round spring oil pocket 1a；Short round spring
Oil pocket 1a volume is greater than over spring oil pocket 1b；Engine main oil gallery is connected with short round spring oil pocket 1a, over spring oil pocket 1b；Start
When machine tick-over, short round spring oil pocket 1a oil inlet, over spring oil pocket 1b oil inlet passage is closed；When high engine speeds work, short round
Spring oil pocket 1a, over spring oil pocket 1b oil inlet simultaneously；Since short round spring oil pocket 1a volume is greater than over spring oil pocket 1b, adjusts ring 5 and press
Contracting reset spring 7 is rotated clockwise around 6 hinged place of pin shaft, is adjusted rotor 3 and drive shaft 2 and is being adjusted the eccentricity in ring 5；It realizes
Lubricating oil pump becomes discharge capacity.
Claims (2)
1. a kind of secondary pressure becomes displacement oil pump；It is characterized by comprising the pump housing, drive shaft, rotor, blade, adjust ring, pin
Axis, reset spring；It adjusts ring and pin shaft is hingedly mounted on the pump housing, adjusting ring can swing around pin shaft；Rotor is mounted on drive shaft
On, rotor and drive shaft are mounted on and adjust in ring, have blade slide on rotor；Blade is mounted in the sliding slot of rotor, blade
It is rotated together with rotor, and can be under the action of the centrifugal force along the chute to circumference Slideslip；The adjusting ring opposite with pin shaft hinged place
There are three sections of sealing surfaces being slidably matched with the pump housing in outer surface, and the pump housing and adjusting interannular are separated out short round spring oil pocket, over spring
Three oil pocket, rotation chamber oil pockets, engine main oil gallery are connected with over spring oil pocket, engine main oil gallery and short round spring oil pocket phase
Connection；Short round spring oil pocket volume is greater than over spring oil pocket；Engine main oil gallery is connected with short round spring oil pocket, over spring oil pocket.
2. a kind of secondary pressure according to claim 1 becomes displacement oil pump；It is characterized by also including sealing element,
Sealing element quantity is more than or equal to 3, is mounted on and adjusts on three sections of sealing surfaces that ring outer surface and the pump housing are slidably matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820900915.1U CN208365172U (en) | 2018-06-12 | 2018-06-12 | A kind of secondary pressure change displacement oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820900915.1U CN208365172U (en) | 2018-06-12 | 2018-06-12 | A kind of secondary pressure change displacement oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208365172U true CN208365172U (en) | 2019-01-11 |
Family
ID=64928645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820900915.1U Active CN208365172U (en) | 2018-06-12 | 2018-06-12 | A kind of secondary pressure change displacement oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208365172U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533937A (en) * | 2018-06-12 | 2018-09-14 | 富奥汽车零部件股份有限公司 | A kind of secondary pressure change displacement oil pump |
-
2018
- 2018-06-12 CN CN201820900915.1U patent/CN208365172U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533937A (en) * | 2018-06-12 | 2018-09-14 | 富奥汽车零部件股份有限公司 | A kind of secondary pressure change displacement oil pump |
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