CN203394647U - Engine cylinder body of integrated oil pump shell - Google Patents
Engine cylinder body of integrated oil pump shell Download PDFInfo
- Publication number
- CN203394647U CN203394647U CN201320416062.1U CN201320416062U CN203394647U CN 203394647 U CN203394647 U CN 203394647U CN 201320416062 U CN201320416062 U CN 201320416062U CN 203394647 U CN203394647 U CN 203394647U
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- Prior art keywords
- oil
- oil pump
- cavity
- pressure
- integrated
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- Lubrication Of Internal Combustion Engines (AREA)
- Rotary Pumps (AREA)
Abstract
The utility model discloses an engine cylinder body of an integrated oil pump shell. An oil pump assembly and the cylinder body are cast together; the lower part of a rotor cavity of an integrated rotor type oil pump is connected with a low-pressure oil cavity and a high-pressure oil cavity; the low-pressure oil cavity is connected with a suction filter through a low-pressure oil cavity oil-inlet passage; the high-pressure oil cavity is connected with a main oil passage through a high-pressure oil cavity oil-inlet passage; meanwhile, the low-pressure oil cavity is also connected with a plunger oil passage provided with an oil pump pressure-limiting valve. Excessive oil directly flows from the high-pressure oil cavity into the low-pressure oil cavity rather than an oil bottom shell through the plunger oil passage; due to the fact that the pressure difference between the high-pressure oil cavity and the low-pressure oil cavity is reduced, the consumption power of the oil pump assembly is reduced, the efficiency of the oil pump is improved; due to the fact that the rotor type oil pump is integrated on the lower part of the front end, the oil sucking height is reduced, the forming time of oil pressure is reduced, and then the time of dry friction when an engine is started is reduced; due to the fact that the integrated oil pump is adopted and most parts are integrated on the cylinder body, the whole engine is more compact.
Description
Technical field
The utility model relates to the cylinder body of motor, is a kind of engine cylinder-body of integrated oil pump shell specifically.
Background technique
In traditional diesel engine industry, generally using engine oil pump assembly as independent component, be placed on motor, this just makes the overall volume of motor excessive, and the transmission of oil pump is bad layout also, and independent oil pump is arranged the cost that will increase motor.In most oil pump design, the high-pressure oil of process pressure-limit valve directly flows back to oil sump in addition, and this part of high-pressure oil cannot effectively utilize, but has consumed the Partial Power of oil pump, has reduced the efficiency of oil pump.
Summary of the invention
The purpose of this utility model is to overcome deficiency of the prior art, and a kind of engine cylinder-body of integrated oil pump shell is provided.
In order to solve the technical problem of above-mentioned existence, the utility model adopts following technical proposals to be achieved:
A kind of engine cylinder-body of integrated oil pump shell, comprise rotor cavity (1) and engine oil pump assembly, it is characterized in that, described engine oil pump assembly is together with cylinder casting, rotor cavity (1) bottom of rotor integrated formula oil pump connects low pressure oil pocket (2) and high-voltage oil cavity (3), low pressure oil pocket (2) connects fuel filter by low pressure oil pocket oil input channel (5), described high-voltage oil cavity (3) connects main oil gallery (7) by high-voltage oil cavity oil input channel (4), described low pressure oil pocket (2) also connects the plunger oil duct (6) that engine oil pump pressure-limiting valve is housed simultaneously, excessive machine oil will directly be got back to low pressure oil pocket (2) by plunger oil duct (6) from high-voltage oil cavity (3), rather than oil sump.
As further technological scheme:
The inner and outer Rotator of described oil pump is contained in rotor cavity (1), at internal rotor axis hole and high-voltage oil cavity, drives oil groove, in order to lubricated inner and outer Rotator end face and machine oil pump shaft.
Described inside and outside rotor in oil pump installs to after rotor chamber, with the front-end face of an independent oil pump pressing plate for sealing oil pump.
Described engine oil pump pressure-limiting valve is comprised of plunger and two component of spring, is contained in plunger oil duct (6) the inside, in order to limit the too high oil pressure of oil pump.
Owing to adopting technique scheme, the engine cylinder-body of this integrated oil pump shell that the utility model provides, by excessive high-pressure oil by the direct defeated low pressure oil pocket of getting back to of engine oil pump pressure-limiting valve, this effectively reduces the pressure difference between hyperbaric chamber and low-pressure cavity, thereby reduced the consumed power of engine oil pump assembly, improved the efficiency of oil pump; In addition, rotor-type oil pump is integrated in to front end bottom, reduced oil absorption height, reduced the building-up time of oil pressure, thereby the time of dry friction while having reduced engine start, and with respect to external hanging type oil pump, the utility model adopts the oil pump of integrated form, most component are all integrated on cylinder body, thereby have reduced the cost of whole motor; Solve the excessive space that independent external hanging type oil pump takies on motor, made motor complete machine compacter.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is cross-sectional structure figure of the present utility model.
In figure: 1-rotor cavity, 2-low pressure oil pocket, 3-high-voltage oil cavity, 4-high-voltage oil cavity oil input channel, 5-low pressure oil pocket oil input channel, 6-plunger oil duct, 7-main oil gallery.
Embodiment
Below in conjunction with accompanying drawing 1-2, the utility model is described in further detail.
A kind of engine cylinder-body of integrated oil pump shell, this cylinder body the is integrated rotor cavity (1) of rotor-type oil pump, rotor cavity (1) bottom is low pressure oil pocket (2) and the high-voltage oil cavity (3) of engine oil pump assembly, low pressure oil pocket (2) is communicated with the fuel filter of oil sump by low pressure oil pocket oil input channel (5), and high-pressure oil enters main oil gallery (7) from high-voltage oil cavity (3) by high-voltage oil cavity oil input channel (4).On plunger oil duct (6), engine oil pump pressure-limiting valve is housed, excessive machine oil will directly be got back to low pressure oil pocket (2) by plunger oil duct (6) from high-voltage oil cavity (3), rather than oil sump simultaneously.This part of engine oil pressure is higher, does not need to consume the too much power of oil pump, just can get back to high-voltage oil cavity.
Oil pump is directly integrated in to cylinder body front end bottom, machine oil pump case is together with cylinder casting, the turnover oil-piping of oil pump is also directly processed on body, this has just solved the excessive space that independent external hanging type oil pump takies on motor, make motor complete machine compacter, the inner and outer rotors of oil pump is contained in rotor cavity (1), at internal rotor axis hole and high-voltage oil cavity, drives oil groove, in order to lubricated inner and outer rotors end face and machine oil pump shaft.
Inside and outside rotor in oil pump installs to after rotor cavity (1), with the front-end face of an independent oil pump pressing plate for sealing oil pump.
Claims (4)
1. the engine cylinder-body of an integrated oil pump shell, comprise rotor cavity (1) and engine oil pump assembly, it is characterized in that, described engine oil pump assembly is together with cylinder casting, rotor cavity (1) bottom of rotor integrated formula oil pump connects low pressure oil pocket (2) and high-voltage oil cavity (3), low pressure oil pocket (2) connects fuel filter by low pressure oil pocket oil input channel (5), described high-voltage oil cavity (3) connects main oil gallery (7) by high-voltage oil cavity oil input channel (4), described low pressure oil pocket (2) also connects the plunger oil duct (6) that engine oil pump pressure-limiting valve is housed simultaneously, excessive machine oil will directly be got back to low pressure oil pocket (2) by plunger oil duct (6) from high-voltage oil cavity (3).
2. the engine cylinder-body of a kind of integrated oil pump shell according to claim 1, it is characterized in that, the inner and outer Rotator of described oil pump is contained in rotor cavity (1), at internal rotor axis hole and high-voltage oil cavity, drives oil groove, in order to lubricated inner and outer Rotator end face and machine oil pump shaft.
3. the engine cylinder-body of a kind of integrated oil pump shell according to claim 2, is characterized in that, described inside and outside rotor in oil pump installs to after rotor chamber, with the front-end face of an independent oil pump pressing plate for sealing oil pump.
4. the engine cylinder-body of a kind of integrated oil pump shell according to claim 1, is characterized in that, described engine oil pump pressure-limiting valve is comprised of plunger and two component of spring, is contained in plunger oil duct (6) the inside, in order to limit the too high oil pressure of oil pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320416062.1U CN203394647U (en) | 2013-07-12 | 2013-07-12 | Engine cylinder body of integrated oil pump shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320416062.1U CN203394647U (en) | 2013-07-12 | 2013-07-12 | Engine cylinder body of integrated oil pump shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203394647U true CN203394647U (en) | 2014-01-15 |
Family
ID=49906183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320416062.1U Expired - Lifetime CN203394647U (en) | 2013-07-12 | 2013-07-12 | Engine cylinder body of integrated oil pump shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203394647U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939173A (en) * | 2014-04-14 | 2014-07-23 | 奇瑞汽车股份有限公司 | Oil pump for engine |
| CN107780992A (en) * | 2017-11-02 | 2018-03-09 | 广西玉柴机器股份有限公司 | The lubricating oil pump oil-returning structure of engine |
| CN109882728A (en) * | 2019-03-28 | 2019-06-14 | 南京创新机油泵制造有限公司 | A kind of lubricating oil pump and assembly method |
| CN111206974A (en) * | 2018-11-21 | 2020-05-29 | 宝沃汽车（中国）有限公司 | Engine and vehicle |
-
2013
- 2013-07-12 CN CN201320416062.1U patent/CN203394647U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939173A (en) * | 2014-04-14 | 2014-07-23 | 奇瑞汽车股份有限公司 | Oil pump for engine |
| CN107780992A (en) * | 2017-11-02 | 2018-03-09 | 广西玉柴机器股份有限公司 | The lubricating oil pump oil-returning structure of engine |
| CN111206974A (en) * | 2018-11-21 | 2020-05-29 | 宝沃汽车（中国）有限公司 | Engine and vehicle |
| CN109882728A (en) * | 2019-03-28 | 2019-06-14 | 南京创新机油泵制造有限公司 | A kind of lubricating oil pump and assembly method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |
|
| CX01 | Expiry of patent term |