CN202452080U - Oil pump - Google Patents
Oil pump Download PDFInfo
- Publication number
- CN202452080U CN202452080U CN2012200135486U CN201220013548U CN202452080U CN 202452080 U CN202452080 U CN 202452080U CN 2012200135486 U CN2012200135486 U CN 2012200135486U CN 201220013548 U CN201220013548 U CN 201220013548U CN 202452080 U CN202452080 U CN 202452080U
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- CN
- China
- Prior art keywords
- pump
- oil pump
- pressure
- oil
- pressure adjustment
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an oil pump, which comprises a pump body, an external rotor, an internal rotor and a pump cover, wherein an oil outlet hole of the oil pump is connected with a pressure adjustment seat; an oil discharge hole communicated with an oil outlet slot is formed in the pressure adjustment seat; the pressure adjustment seat comprises a cover-shaped nut, a pressure adjustment stud and a pressure adjustment spring; the cover-shaped nut is screwed on the pressure adjustment stud outside the pump body; the pressure adjustment stud is pressed against the pressure adjustment spring; and the pressure adjustment seat also comprises a steel ball which is pressed by the pressure adjustment spring and positioned at the oil outlet hole. By adopting the structure, oil outlet pressure of the oil pump can be adjusted, so that the running stability of the oil pump can be improved.
Description
Technical field:
The utility model relates to the oil pump field.
Background technique:
In the market single cylinder diesel have wide in variety, output is big, price is low, advantage such as easy to use.For many years, S1110 diesel engine and S195 diesel engine have occupied the market leading position always.The oil pump that these two kinds of model diesel engines use all is the rotator type structure.The effect of oil pump is to make lubricant oil set up pressure, and flows to the position that each needs pressure lubrication.Oil pump work is to drive external rotor through internal rotor to rotate, and machine oil is inhaled into active chamber from oil inlet hole, along with inner and outer rotors do not stop run up, machine oil is pressed into the body from oil outlet through pumping cavity, produces lubrication, guarantees that diesel engine normally moves.
Original oil pump satisfies the basic demand of using, but has following problem: more than oil pump Revolution Per Minute 2200 changeed, noise was big, and diesel engine part is easy to wear; When running up, the oil pump overpressure can't be effectively controlled; During working uphill, be short of power, be easy to generate the over-emitting black exhaust phenomenon, consumed fuel, increased the weight of pollution, influenced the overall performance of diesel engine; Follow-on oil pump product emerges in an endless stream, the instability that still do not get rid of stress, the technological fix that oil consumption is high.
The model utility content:
The technical problem that the utility model will solve provides a kind of oil pump that can control pump housing pressure.What further will solve is that the oil pump noise is big, parts are easy to wear, the technical problem of pressure transient.
For solving the problems of the technologies described above; The technological scheme of the utility model is following: oil pump; Comprise the pump housing, external rotor, internal rotor, pump cover, wherein the oil outlet of this oil pump is connected with a pressure regulating seat, have on the pressure regulating seat one with go out the draining hole that oil groove communicates; Said pressure regulating seat comprises cover type nut, pressure regulation double-screw bolt, pressure adjusting spring; Cover type nut is screwed on the outer pressure regulation double-screw bolt of the pump housing, and the pressure regulation double-screw bolt withstands on the pressure adjusting spring, and this pressure regulating seat also comprises one by pressure adjusting spring withstood, be positioned at the oil outlet place steel ball.
Preferably, have center hole between said internal rotor and the pump cover.
Preferably, said oil pump internal rotor wall thickness is 18mm, and the external rotor wall thickness is 18mm.
Preferably, the rotating speed of said oil pump is 1800 rev/mins.
Preferably, the pump housing at said oil outlet place has Baltimore groove.
On the pressure regulation double-screw bolt between the cover type nut and the pump housing hexagon thin nut is housed, on the pressure regulation double-screw bolt between cover type nut and the hexagon thin nut packing ring is housed.
Adopt this technological scheme, pressure regulating seat can make oil pump pressure and oil pump capacity be effectively controlled; The rotating speed that oil pump is 1800 rev/mins has reduced the diesel engine noise, and saves fuel oil 30%, has improved the Economy of fuel oil; Adopting thickness is the inner and outer rotors of 18mm, and the phenomenon of the over-emitting black exhaust that is short of power when having overcome working uphill has reduced the pollution to environment, plays a role in energy saving.Adopt this structure, improved the diesel engine overall performance, prolonged working life.
Description of drawings:
Further specify the utility model below in conjunction with accompanying drawing and embodiment.
Fig. 1 is the plan view of the utility model.
Fig. 2 is the sectional view of B-B part shown in Figure 1.
Fig. 3 is the sectional view of A-A part shown in Figure 1.
Embodiment:
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
As can be seen from Figure 1, this oil pump is provided with a pressure regulating seat 19 at the oil outlet position.
As can be seen from Figure 2, a locating stud 14 is arranged on this oil pump.
As can be seen from Figure 3, this oil pump also comprises the pump housing 1, seal ring 2, external rotor 3, internal rotor 4, pump cover 5, hexagon head bolt 6, standard spring washer 7.The oil outlet 18 of this oil pump is connected with a pressure regulating seat 19; Have on the pressure regulating seat 19 one with go out the draining hole 15 that the oil groove (not shown) communicates, said pressure regulating seat 19 comprises: steel ball 8, pressure adjusting spring 9, pressure regulation double-screw bolt 10, hexagon thin nut 11, packing ring 12 and cover type nut 13.Steel ball 8 is positioned at the Baltimore groove 16 at pump housing oil outlet 18 places, and this Baltimore groove 16 can make steel ball 8 locate better, and pressure adjusting spring 9 withstands on the steel ball 8, and pressure regulation double-screw bolt 10 withstands pressure adjusting spring 9.Pressure regulation double-screw bolt 10 and the pump housing 1 are for being threaded, and the pump housing 1 outer pressure regulation double-screw bolt 10 parts are screwed with hexagon thin nut 11 and cover type nut 13, are with packing ring 12 on the pressure regulation double-screw bolt 10 between hexagon thin nut 11 and the cover type nut 13.Degree of tightness through cover type nut 13 is regulated the tightness degree that cooperates that pressure regulation double-screw bolt 10 is controlled steel ball 8 and oil outlet 18, when pump internal pressure greatly the time, unscrews cover type nut 13; The impacting force of 10 pairs of pressure adjusting springs 9 of pressure regulation double-screw bolt reduces, and the impacting force that 9 pairs of steel balls 8 of pressure adjusting spring apply reduces, and steel ball 8 detaches oilhole 18; The pump inner engine oil flows out from oil outlet 18, flows back to out oil groove through draining hole 15, and the pump internal pressure reduces; And then realize the dredge oil amount regulation and control, guarantee that the pump housing 1 internal pressure is stable.
Have center hole 17 between internal rotor 4 and the pump cover 5, improved the stability of oil pump operation, prolonged the life-span of oil pump.
Internal rotor 4 wall thickness of oil pump are risen to 18mm by original 16mm, and external rotor 3 wall thickness also rise to 18mm, can improve the pump oil mass like this, the phenomenon of over-emitting black exhaust when especially having overcome the diesel engine working uphill.
Existing rotating speed with oil pump is adjusted into 1800 rev/mins by original 2200 rev/mins, has reduced the diesel engine noise.
More than show and described basic principle of the utility model and the advantage of major character and the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (7)
1. oil pump; Comprise the pump housing, external rotor, internal rotor, pump cover, it is characterized in that: the oil outlet of this oil pump is connected with a pressure regulating seat, have on the pressure regulating seat one with go out the draining hole that oil groove communicates; Said pressure regulating seat comprises cover type nut, pressure regulation double-screw bolt, pressure adjusting spring; Cover type nut is screwed on the outer pressure regulation double-screw bolt of the pump housing, and the pressure regulation double-screw bolt withstands on the pressure adjusting spring, and this pressure regulating seat also comprises one by pressure adjusting spring withstood, be positioned at the oil outlet place steel ball.
2. according to the described oil pump of claim 1, it is characterized in that: have center hole between said internal rotor and the pump cover.
3. according to claim 1 or 2 described oil pump, it is characterized in that: said oil pump internal rotor wall thickness is 18mm, and the external rotor wall thickness is 18mm.
4. according to the described oil pump of claim 3, it is characterized in that: the rotating speed of said oil pump is 1800 rev/mins.
5. according to the described oil pump of claim 1, it is characterized in that: the pump housing at said oil outlet place has Baltimore groove.
6. according to the described oil pump of claim 1, it is characterized in that: on the pressure regulation double-screw bolt between the said cover type nut and the pump housing hexagon thin nut is housed.
7. according to the described oil pump of claim 6, it is characterized in that: on the pressure regulation double-screw bolt between said cover type nut and the hexagon thin nut packing ring is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200135486U CN202452080U (en) | 2012-01-12 | 2012-01-12 | Oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200135486U CN202452080U (en) | 2012-01-12 | 2012-01-12 | Oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202452080U true CN202452080U (en) | 2012-09-26 |
Family
ID=46867944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200135486U Expired - Fee Related CN202452080U (en) | 2012-01-12 | 2012-01-12 | Oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202452080U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964151A (en) * | 2015-07-03 | 2015-10-07 | 南京高德机械有限公司 | Diesel engine oil pump |
| CN106015542A (en) * | 2016-08-17 | 2016-10-12 | 湖南机油泵股份有限公司 | Transmission oil pump capable of preventing pressure of transmission oil duct from being too high |
| CN106764371A (en) * | 2016-11-29 | 2017-05-31 | 东风朝阳朝柴动力有限公司 | Can adjust automatically engine oil pressure rotor-type oil pump assembly |
-
2012
- 2012-01-12 CN CN2012200135486U patent/CN202452080U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964151A (en) * | 2015-07-03 | 2015-10-07 | 南京高德机械有限公司 | Diesel engine oil pump |
| CN106015542A (en) * | 2016-08-17 | 2016-10-12 | 湖南机油泵股份有限公司 | Transmission oil pump capable of preventing pressure of transmission oil duct from being too high |
| CN106764371A (en) * | 2016-11-29 | 2017-05-31 | 东风朝阳朝柴动力有限公司 | Can adjust automatically engine oil pressure rotor-type oil pump assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20150112 |
|
| EXPY | Termination of patent right or utility model |