CN203797314U - Novel rotor type engine oil pump - Google Patents
Novel rotor type engine oil pump Download PDFInfo
- Publication number
- CN203797314U CN203797314U CN201420171116.7U CN201420171116U CN203797314U CN 203797314 U CN203797314 U CN 203797314U CN 201420171116 U CN201420171116 U CN 201420171116U CN 203797314 U CN203797314 U CN 203797314U
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- Prior art keywords
- oil pump
- pump
- engine oil
- valve seat
- hole
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- Withdrawn - After Issue
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Abstract
The utility model relates to a novel rotor type engine oil pump. The novel rotor type engine oil pump comprises an engine oil pump cover, an engine oil pump body, a pump shaft, a rotor part, a safety valve and a protective valve, wherein the engine oil pump cover covers the bottom of the engine oil pump body in a sealing manner, and the pump shaft and the rotor part are arranged in a cavity body of the engine oil pump body; the rotor part is arranged on the pump shaft in a sleeving way; the input end of the pump shaft is connected to a shaft seat hole of the engine oil pump body, and the other end of the pump shaft is connected to a shaft seat hole of the engine oil pump cover; an eccentric boss is arranged at the right upper part of the engine oil pump body, and the safety valve and the protective valve are arranged on the eccentric boss. As a structure combining the safety valve and the protective valve is adopted, the failure possibility of the engine oil pump can be greatly reduced. The engine technical level is further improved, and the reliability of the engine is improved. Other protective devices, such as a main oil channel safety valve can be replaced, so that the purpose of lowering cost is achieved. The novel rotor type engine oil pump is compact in structure and easy to mount, and trial running results show that the work and use performance of the engine oil pump is not affected.
Description
Technical field
The utility model relates to technical field of engines, specifically a kind of Novel rotor type oil pump.
Background technique
In the diesel engine that sell market at present, mostly adopt rotor-type oil pump.This rotor-type oil pump, some is provided with safety valve, and some is provided with safety valve in next stage machine oil path.These safety valves in use for some time, usually there will be the situation of inefficacy.It mainly contains following two reasons: 1) because the cracking pressure of safety valve is higher, and requirement is wider to engine oil pressure adjustment, so the spring specification of selecting is all longer, steel ball is also easy to wear; 2) pressure after safety valve is zero, cannot form effective protection to safety valve.
After safety valve lost efficacy, engine oil pressure goes wrong, and gently causes the motor situation such as insufficient lubrication in short-term, heavy Bearing score, scuffing of cylinder bore, motor damage.
The features such as rotor-type oil pump is simple in structure because of it, and size is little, with low cost, extensive use on motor.How resolving the problem that oil pump lost efficacy, is the emphasis of market development.
Model utility content
For prior art above shortcomings, the utility model provides a kind of Novel rotor type oil pump.
The purpose of this utility model is achieved by the following technical programs:
A Novel rotor type oil pump, comprises engine oil pump cover 1, the oil pump pump housing 2, pump shaft 3, rotor part 4, safety valve spring 5, the first steel ball 7a, the first valve plug 8a, Protective valve spring 6, the second steel ball 7b and the second valve plug 8b; The oil pump pump housing 2 centers are cavity body.The cavity body end face of the oil pump pump housing 2 is provided with axle bed hole, uniform four mounting holes of the oil pump pump housing 2 periphery centered by axle bed hole.The oil pump pump housing 2 upper right are provided with eccentric platform, be respectively equipped with emergency valve seat hole 12 and protection valve seat orifice 13, and the aperture in two holes are equipped with screw mouth on eccentric platform.Emergency valve seat hole 12 is through hole, and protection valve seat orifice 13 is counterbore, and between two holes, is traversing draining road I 9.I 9 left sides, draining road connect the waist in emergency valve seat hole 12, and the right side connects the bottom of protection valve seat orifice 13.The waist of protection valve seat orifice 13 is provided with draining road II 10.One port of draining road II 10 is connected on protection valve seat orifice 13 limits, left side, and the external of the oil pump pump housing 2 led in another port.
Engine oil pump cover 1 center is cavity body, and its exterior contour is identical with the oil pump pump housing 2.Engine oil pump cover 1 cavity body end face is provided with axle bed hole, along cavity footpath, is upwards provided with pump chamber oil duct 11.Pump chamber oil duct 11 communicates with engine oil pump cover 1 cavity body.
Engine oil pump cover 1 is bolted the bottom that is sealed on the oil pump pump housing 2, and the cavity body of engine oil pump cover 1 is corresponding with the cavity body of the oil pump pump housing 2.Corresponding the communicating in bottom in pump chamber oil duct 11 and emergency valve seat hole 12.Pump shaft 3, rotor part 4 are arranged in the oil pump pump housing 2 cavity body.Rotor part 4 is set on pump shaft 3.The input end of pump shaft 3 is connected on the axle bed hole of the oil pump pump housing 2, and the other end of pump shaft 3 is connected on the axle bed hole of engine oil pump cover 1.
The aperture in emergency valve seat hole 12 is identical with the aperture that is protection valve seat orifice 13, and emergency valve seat hole 12 hole depths are 2 times of hole depth of protection valve seat orifice 13.
The mean diameter of coil of safety valve spring 5, spring thread diameter and Protective valve spring 6 mean diameter of coil, spring thread diameter are identical, and the spring length of safety valve spring 5 is 2 times of Protective valve spring 6 spring length.
The first steel ball 7a, safety valve spring 5 are successively set in emergency valve seat hole 12, and by the first valve plug 8a, are threaded to be sealed on 12 apertures, emergency valve seat hole and form safety valve.
The second steel ball 7b, Protective valve spring 6 are successively set in protection valve seat orifice 13, and are threaded and are sealed on protection and form Protective valve on valve seat orifice 13 apertures by the second valve plug 8b.
Useful technique effect of the present utility model is embodied in following several aspect:
1. owing to having adopted the combined integrated rotor-type oil pump structure of this safety valve and Protective valve, can greatly reduce the possibility that oil pump lost efficacy;
2. further promote engine technology level, improved the reliability of motor, can replace other protective gear, as main oil gallery safety valve etc., thereby reached the object reducing costs;
The utility model compact structure, be easy to install, by result of trial operation, measure and do not affect the work of oil pump and usability.
Accompanying drawing explanation
Fig. 1 is schematic three dimensional views of the present utility model.
Fig. 2 is two-dimentional plan view of the present utility model.
Fig. 3 is the B-B sectional view of Fig. 2.
Fig. 4 is the D-D sectional view of Fig. 2.
Sequence number in figure, 1 engine oil pump cover, the 2 oil pump pump housings, 3 pump shafts, 4 rotor parts, 5 safety valve springs, 6 Protective valve springs, 7a the first steel ball, 7b the second steel ball, 8a the first valve plug, 8b the second valve plug, 9 draining road I, 10 draining road II, 11 pump chamber oil ducts, 12 emergency valve seat holes, 13 protection valve seat orifice.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is further described.
Referring to Fig. 1, Fig. 3, Fig. 4.A Novel rotor type oil pump, comprises engine oil pump cover 1, the oil pump pump housing 2, pump shaft 3, rotor part 4, safety valve spring 5, the first steel ball 7a, the first valve plug 8a, Protective valve spring 6, the second steel ball 7b and the second valve plug 8b; Referring to Fig. 2, Fig. 3, Fig. 4.The oil pump pump housing 2 centers are cavity body.The cavity body end face of the oil pump pump housing 2 is provided with axle bed hole, uniform four mounting holes of the oil pump pump housing 2 periphery centered by axle bed hole.The oil pump pump housing 2 upper right are provided with eccentric platform, be respectively equipped with emergency valve seat hole 12 and protection valve seat orifice 13, and the aperture in two holes are equipped with screw mouth on eccentric platform.Emergency valve seat hole 12 is through hole, and protection valve seat orifice 13 is counterbore, and between two holes, is traversing draining road I 9.I 9 left sides, draining road connect the waist in emergency valve seat hole 12, and the right side connects the bottom of protection valve seat orifice 13.The waist of protection valve seat orifice 13 is provided with draining road II 10.One port of draining road II 10 is connected on protection valve seat orifice 13 limits, left side, and the external of the oil pump pump housing 2 led in another port.
Engine oil pump cover 1 center is cavity body, and its exterior contour is identical with the oil pump pump housing 2.Engine oil pump cover 1 cavity body end face is provided with axle bed hole, along cavity footpath, is upwards provided with pump chamber oil duct 11.Pump chamber oil duct 11 communicates with engine oil pump cover 1 cavity body.
Engine oil pump cover 1 is bolted the bottom that is sealed on the oil pump pump housing 2, and the cavity body of engine oil pump cover 1 is corresponding with the cavity body of the oil pump pump housing 2.Corresponding the communicating in bottom in pump chamber oil duct 11 and emergency valve seat hole 12.Pump shaft 3, rotor part 4 are arranged in the oil pump pump housing 2 cavity body.Rotor part 4 is set on pump shaft 3.The input end of pump shaft 3 is connected on the axle bed hole of the oil pump pump housing 2, and the other end of pump shaft 3 is connected on the axle bed hole of engine oil pump cover 1.
The aperture in emergency valve seat hole 12 is identical with the aperture that is protection valve seat orifice 13, and emergency valve seat hole 12 hole depths are 2 times of hole depth of protection valve seat orifice 13.
The mean diameter of coil of safety valve spring 5, spring thread diameter and Protective valve spring 6 mean diameter of coil, spring thread diameter are identical, and the spring length of safety valve spring 5 is 2 times of Protective valve spring 6 spring length.
The first steel ball 7a, safety valve spring 5 are successively set in emergency valve seat hole 12, and by the first valve plug 8a, are threaded to be sealed on 12 apertures, emergency valve seat hole and form safety valve; The second steel ball 7b, Protective valve spring 6 are successively set in protection valve seat orifice 13, and are threaded and are sealed on protection and form Protective valve on valve seat orifice 13 apertures by the second valve plug 8b.
Embodiment 1:
Design concept of the present utility model is as follows:
The other Protective valve of having set up of safety valve in Novel rotor type oil pump.Because Protective valve spring 6 is shorter than safety valve spring 5, therefore the cracking pressure of Protective valve is less than the cracking pressure of safety valve, and the cracking pressure ratio engine normal operating pressure of Protective valve is slightly high.Like this, after safety valve is opened, the machine oil unloading need pass through draining road I 9, then backs down Protective valve spring 6, by draining road II 10, carries out draining.While opening due to safety valve, be hit large, and safety valve spring 5 is longer, steel ball is easily damaged, spring easily lost efficacy.In the process of safety valve opening and closing, due to the existence of Protective valve, make to have pressure in draining road I 9 always, contribute to safety valve spring 5 to recover elasticity, and compress the first steel ball 7a, can greatly reduce inefficacy may.Secondly, because Protective valve spring 6 elastic force are less, and shorter, the impaired possibility of spring failure and steel ball all reduces greatly.
Embodiment 2:
Working principle of the present utility model is as follows:
Referring to Fig. 4, too high when the oil pressure of pump chamber oil duct 11, oil pressure reaches and is greater than the predetermined pressure of opening of safety valve spring 5, pressure oil jack-up the first steel ball 7a that leads to emergency valve seat hole 12, and pressure oil is from draining road I 9 drainings.Because safety valve spring 5 length are greater than Protective valve spring 6 spring length; therefore the predetermined pressure of safety valve is greater than the predetermined pressure of Protective valve; so the oil pressure releasing from draining road I 9 is greater than the predetermined cracking pressure of Protective valve spring 6; will jack-up the second steel ball 7b, make pressure oil from draining road II 10 drainings.When pump chamber oil duct 11 pressure are during lower than safety valve spring 5 predetermined cracking pressure; safety valve spring 5 resiliences, the first steel ball 7a resets, and draining road I 9 is closed; Protective valve spring 6 also can reset, and at this moment the pressure in draining road I 9 remains within the scope of motor normal pressure value.Once safety valve spring 5 and the first steel ball 7a break down; as spring clamping stagnation and steel ball inordinate wear etc.; Protective valve will play very important effect, first can contribute to safety valve spring 5 to reset, and secondly Protective valve can ensure that motor normally moves engine oil pressure.Protective valve be difficult to damage, because its length is shorter, spring and steel ball be easy break-down not.
Claims (3)
1. a Novel rotor type oil pump, comprises engine oil pump cover (1), the oil pump pump housing (2), pump shaft (3), rotor part (4), safety valve spring (5), the first steel ball (7a) and the first valve plug (8a);
The described oil pump pump housing (2) center is cavity body; The cavity body end face of the oil pump pump housing (2) is provided with axle bed hole, uniform four mounting holes of the oil pump pump housing (2) periphery centered by axle bed hole; The described oil pump pump housing (2) upper right is provided with eccentric platform, be respectively equipped with emergency valve seat hole (12) and protection valve seat orifice (13), and the aperture in two holes is equipped with screw mouth on eccentric platform; Described emergency valve seat hole (12) is through hole, and protection valve seat orifice (13) is counterbore, and between two holes, is traversing draining road I (9); Described draining road I (9) left side connects the waist of emergency valve seat hole (12), and the right side connects the bottom of protection valve seat orifice (13); The waist of described protection valve seat orifice (13) is provided with draining road II (10); One port of described draining road II (10) is connected on limit, protection valve seat orifice (13) left side, and the external of the oil pump pump housing (2) led in another port;
Described engine oil pump cover (1) center is cavity body, and its exterior contour is identical with the oil pump pump housing (2); Described engine oil pump cover (1) cavity body end face is provided with axle bed hole, is upwards provided with pump chamber oil duct (11) along cavity footpath; Described pump chamber oil duct (11) communicates with engine oil pump cover (1) cavity body;
Described engine oil pump cover (1) is bolted the bottom that is sealed on the oil pump pump housing (2), and the cavity body of described engine oil pump cover (1) is corresponding with the cavity body of the oil pump pump housing (2); Corresponding the communicating in bottom of described pump chamber oil duct (11) and emergency valve seat hole (12); Described pump shaft (3), rotor part (4) are arranged in the oil pump pump housing (2) cavity body; Described rotor part (4) is set on pump shaft (3); The input end of pump shaft (3) is connected on the axle bed hole of the oil pump pump housing (2), and the other end of pump shaft (3) is connected on the axle bed hole of engine oil pump cover (1);
Described the first steel ball (7a), safety valve spring (5) are successively set in emergency valve seat hole (12), and by the first valve plug (8a), are threaded to be sealed on aperture, emergency valve seat hole (12) and form safety valve;
It is characterized in that: also comprise the second steel ball (7b), Protective valve spring (6) and the second valve plug (8b);
Described the second steel ball (7b), Protective valve spring (6) are successively set in protection valve seat orifice (13), and by the second valve plug (8b), are threaded to be sealed on to protect on valve seat orifice (13) aperture and form Protective valve.
2. a kind of Novel rotor type oil pump according to claim 1; it is characterized in that: the aperture in described emergency valve seat hole (12) is identical with the aperture that is protection valve seat orifice (13), described emergency valve seat hole (12) hole depth is 2 times of hole depth of protection valve seat orifice (13).
3. a kind of Novel rotor type oil pump according to claim 1; it is characterized in that: the mean diameter of coil of described safety valve spring (5), spring thread diameter and Protective valve spring (6) mean diameter of coil, spring thread diameter are identical, and the spring length of described safety valve spring (5) is 2 times of Protective valve spring (6) spring length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420171116.7U CN203797314U (en) | 2014-04-10 | 2014-04-10 | Novel rotor type engine oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420171116.7U CN203797314U (en) | 2014-04-10 | 2014-04-10 | Novel rotor type engine oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203797314U true CN203797314U (en) | 2014-08-27 |
Family
ID=51379524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420171116.7U Withdrawn - After Issue CN203797314U (en) | 2014-04-10 | 2014-04-10 | Novel rotor type engine oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203797314U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939722A (en) * | 2014-04-10 | 2014-07-23 | 安徽全柴动力股份有限公司 | Novel rotor-type oil pump |
-
2014
- 2014-04-10 CN CN201420171116.7U patent/CN203797314U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939722A (en) * | 2014-04-10 | 2014-07-23 | 安徽全柴动力股份有限公司 | Novel rotor-type oil pump |
| CN103939722B (en) * | 2014-04-10 | 2016-03-30 | 安徽全柴动力股份有限公司 | A kind of rotor-type oil pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140827 Effective date of abandoning: 20160330 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |