CN101196187A - Engine rotor engine oil pump - Google Patents
Engine rotor engine oil pump Download PDFInfo
- Publication number
- CN101196187A CN101196187A CNA2006101573345A CN200610157334A CN101196187A CN 101196187 A CN101196187 A CN 101196187A CN A2006101573345 A CNA2006101573345 A CN A2006101573345A CN 200610157334 A CN200610157334 A CN 200610157334A CN 101196187 A CN101196187 A CN 101196187A
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- CN
- China
- Prior art keywords
- rotor
- oil pump
- external
- frame
- shell body
- Prior art date
- 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.)
- Pending
Links
- 239000010705 motor oil Substances 0.000 title description 3
- 239000000945 filler Substances 0.000 claims description 14
- 230000000694 effects Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 63
- 239000010687 lubricating oil Substances 0.000 abstract 7
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 239000010721 machine oil Substances 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 3
- 230000009347 mechanical transmission Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 241001440267 Cyclodes Species 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
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- Rotary Pumps (AREA)
Abstract
The invention relates to a rotor type lubricating oil pump, which comprises a shell body, an internal shell body, an external rotor, an internal rotor and a rotary axle. The internal rotor is positioned inside the external rotor; the external rotor and internal rotor are positioned in a cavity for the coordinated connection of the external shell body and the internal shell body; the rotary axle drives the synchronized rotation of the external rotor and internal rotor; an oil inlet and an oil outlet are arranged on the external shell body; the lubricating oil pump is directly driven by the rotary axle and is assembled at the front end of a frame and a cylinder body; a safe valve is arranged on the external shell body; when the oil yielding pressure from the lubricating oil pump is too high, the safe valve can automatically open under the action of the high pressure lubricating oil and the high pressure lubricating oil returns to the oil inlet via a oil return hole on the safe valve. Therefore, the invention is able to effectively reduce the power needed for driving the lubricating oil pump. In addition, because three extruding platforms are provided on the external shell body, the lubricating oil pump can be disassembled more conveniently.
Description
Technical field
The present invention relates to motor, be specifically related to a kind of engine rotor formula oil pump.
Background technique
Because the operating conditions difference of each moving parts of motor, desired sae number are also different, thereby will take different lubricating systems.For bearing load and the bigger place of speed of related movement, need machine oil possess certain pressure can engaging friction face gap in, form oil film and guarantee lubricated.For making these parts obtain good lubricating, must have on the motor for carrying out pressure lubrication and set up the oil pump of enough pressure.At present, engine oil pump mainly contains two types of gear type and rotator types.The gear type oil pump result is simple, makes to be easier to and reliable operation, uses more extensive.The rotor-type oil pump compact structure, oil suction degree of vacuum is higher, and the pump oil mass is big and fuel feeding is even, and traditional oil pump usually needs independent driving mechanism, cause the engine mechanical transmission part to increase, increased mechanicalness noise, volume and the required power of driving machine oil pump of motor.
Rotor-type oil pump is made up of housing, internal rotor, external rotor and pump cover etc.Internal rotor is fixed on the rotor shaft with key or pin, is directly or indirectly driven by the rotatingshaft gear, and the throw of eccentric at internal rotor and external rotor center is e, and internal rotor drives external rotor and rotates along same direction together.Internal rotor has 4 double wedges, and external rotor has 5 recessed teeth, the nonsynchronous in the same way rotation of inside and outside like this rotor.
When the rotor tooth form tooth Profile Design must make rotor forward any angle to, total energy became the some contact mutually on the profile of tooth profile of inside and outside each tooth of rotor.Form 4 active chambers between inside and outside like this rotor, along with the rotation of rotor, the volume of these 4 active chambers is constantly to change.Side cavity at oil input channel, because the rotor disengage from, volume increases gradually, produces vacuum, machine oil is inhaled into, rotor continues rotation, and machine oil is brought to a side of oil road, at this moment, rotor just in time enters engagement, this cavity volume is reduced, and oil pressure raises, and machine oil is extruded and gone out through the oil road force feed between cog.Like this, along with the continuous rotation of rotor, machine oil just constantly is inhaled into and extrudes.The rotor-type oil pump compact structure, boundary dimension is little, and is in light weight, and oil suction degree of vacuum is bigger, and the pump oil mass is big, the fuel feeding good uniformity, cost is low, is widely used on medium and small motor.
Summary of the invention
The invention provides a kind of motor rotor-type oil pump, need independent driving mechanism to solve available engine with rotor-type oil pump, cause the engine mechanical transmission part to increase, increased the technical problem of the required power of mechanicalness noise, volume and the driving machine oil pump of motor.
In order to solve above technical problem, the technical solution used in the present invention is:
A kind of motor rotor-type oil pump, comprise frame, inner housing, external rotor, internal rotor and rotatingshaft, internal rotor is arranged in the external rotor, in, external rotor is arranged in the cavity that frame and inner housing be connected, in rotatingshaft drives, external rotor rotates together, frame is provided with filler opening and oil outlet, it is characterized in that: described oil pump is directly driven by rotatingshaft, be assemblied in framework and cylinder body front end, also be provided with safety valve between filler opening on the described frame and the oil outlet, when the fuel-displaced overpressure of oil pump, safety valve is opened under the effect of high-pressure oil automatically, and high-pressure oil flow back into filler opening by the spill port on the safety valve.
The inner chamber profile of described external rotor and the external frame of internal rotor are epicycloidal equal space line.
The both sides of described inside and outside rotor are distributed with filler opening.
Each parts of forming rotor-type oil pump are made into a total member.
Also be provided with boss on the described frame.
Described boss has more than three or three.
After having adopted technique scheme, because oil pump is directly driven by rotatingshaft, be assemblied in framework and cylinder body front end, frame is provided with safety valve, has reduced mechanicalness noise, volume and the required power of driving machine oil pump that the engine mechanical transmission part has reduced motor.Owing to all use inner and outer rotors instead epicycloidal equal space line, effectively eliminated the minimum back lash of inner and outer rotors, avoided the generation of cavitation erosion, improved the engagement situation of inner and outer rotors simultaneously, the maximal phase that has reduced inner and outer rotors is to slip velocity.The present invention adopts axial two-sided oil-feed, and rotor thickness is very little simultaneously, and the number of teeth is more, has improved the volumetric efficiency of oil pump greatly.The oil inlet hole of this oil pump is arranged on the framework, and machine oil enters oil pump by behind the trap through the oil inlet hole on the framework, does not have other in-line.Traditional oil pump has oil resistant papery spacer sheet for guaranteeing inside and outside rotor and housing end clearance and sealing between oil pump housing and engine cylinder-body, this has just increased the difficulty of engine maintenance; In addition, oil pump is made a total member, saved the oil resistant papery spacer sheet of traditional oil pump, and make the dismounting of the assembling of oil pump and motor and maintenance all convenient, at last, because frame is provided with boss, can easily it be prized by instrument when tearing oil pump open, is very easy to maintenance work.
Description of drawings
Fig. 1 is an assembling schematic representation of the present invention.
Fig. 2 is of the present invention into and out of the oil circuit schematic representation.
Fig. 3 is the erection drawing of oil pump of the present invention on motor.
Fig. 4 is the structural representation of frame among the present invention.
Fig. 5 is filler opening among the present invention, oil outlet and safety valve position view.
Among the figure: 1. frame, 2. internal rotor, 3. external rotor, 4. inner housing, 5. oil sealing, 6. cylinder body, 7. oil pump, 8. rotatingshaft, 9. framework, 10. oil outlet, 11. safety valves, 12. filler openings, 13. boss
Embodiment
As shown in Figure 1, a kind of motor rotor-type oil pump, comprise frame 1, inner housing 4, external rotor 3, internal rotor 2 and rotatingshaft 8, internal rotor 2 is arranged in the external rotor 3, in, external rotor 2,3 are arranged in the cavity that frame 1 and inner housing 4 be connected, in rotatingshaft 8 drives, external rotor 2,3 rotate together, and frame 1 is provided with filler opening 12, oil outlet 10 and safety valve 11, safety valve 11 is as shown in Figure 5, be arranged between filler opening 12 and the oil outlet 10, oil pump 7 is directly driven by rotatingshaft 8, is assemblied in framework 9 and cylinder body front end, when oil pump 7 fuel-displaced overpressure, safety valve 11 is opened under the effect of high-pressure oil automatically, high-pressure oil flow back into filler opening 12 by the spill port on the safety valve, has reduced engine-driving power, and the inner chamber profile of external rotor 3 and the external frame of internal rotor 2 are that epicycloidal equal space line is a curtate cyclod, as shown in Figure 2, in, the both sides of external rotor 2,3 are distributed with filler opening, are illustrated in figure 3 as the erection drawing of oil pump 7 on motor.As shown in Figure 4, also be provided with three boss 13 on the frame 1, also can be set to more than three certainly.Each parts of forming rotor-type oil pump are made into a total member.Determine that according to designing requirement each critical component comprises the fit dimension of size, internal rotor and rotatingshaft of oil pump housing and external rotor radial cooperation place and the fit dimension of oil pump housing and engine cylinder-body.During assembling, need assembling external rotor earlier, then internal rotor is put into external rotor and rotated inner and outer rotors, it is intact to know that internal rotor cooperates with the oil pump housing, then inner and outer shell is changeed to prepare getting final product.Inside and outside rotor should be able to rotate flexibly after assembling was finished.
Claims (6)
1. motor rotor-type oil pump, comprise frame, inner housing, external rotor, internal rotor and rotatingshaft, internal rotor is arranged in the external rotor, in, external rotor is arranged in the cavity that frame and inner housing be connected, in rotatingshaft drives, external rotor rotates together, frame is provided with filler opening and oil outlet, it is characterized in that: described oil pump is directly driven by rotatingshaft, be assemblied in framework and cylinder body front end, also be provided with safety valve between filler opening on the described frame and the oil outlet, when the fuel-displaced overpressure of oil pump, safety valve is opened under the effect of high-pressure oil automatically, and high-pressure oil flow back into filler opening by the spill port on the safety valve.
2. motor rotor-type oil pump as claimed in claim 1 is characterized in that, the inner chamber profile of described external rotor and the external frame of internal rotor are epicycloidal equal space line.
3. motor rotor-type oil pump as claimed in claim 1 is characterized in that the both sides of described inside and outside rotor are distributed with filler opening.
4. motor rotor-type oil pump as claimed in claim 1 is characterized in that, each parts of forming rotor-type oil pump are made into a total member.
5. motor rotor-type oil pump as claimed in claim 1 is characterized in that, also is provided with boss on the described frame.
6. motor rotor-type oil pump as claimed in claim 5 is characterized in that described boss has more than three or three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101573345A CN101196187A (en) | 2006-12-06 | 2006-12-06 | Engine rotor engine oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101573345A CN101196187A (en) | 2006-12-06 | 2006-12-06 | Engine rotor engine oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101196187A true CN101196187A (en) | 2008-06-11 |
Family
ID=39546776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101573345A Pending CN101196187A (en) | 2006-12-06 | 2006-12-06 | Engine rotor engine oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101196187A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261554A (en) * | 2011-05-04 | 2011-11-30 | 奇瑞汽车股份有限公司 | Rotor type oil pump |
| CN102900519A (en) * | 2012-09-24 | 2013-01-30 | 长城汽车股份有限公司 | Integrated structure of oil pump and vacuum pump of automobile engine |
| CN105793567A (en) * | 2014-01-09 | 2016-07-20 | 株式会社信行 | Two-liquid-type, double-row structured trochoid pump for transferring high-viscosity liquids under high pressure |
| CN108105373A (en) * | 2018-01-11 | 2018-06-01 | 东风商用车有限公司 | Gearbox oil pump shell |
-
2006
- 2006-12-06 CN CNA2006101573345A patent/CN101196187A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261554A (en) * | 2011-05-04 | 2011-11-30 | 奇瑞汽车股份有限公司 | Rotor type oil pump |
| CN102900519A (en) * | 2012-09-24 | 2013-01-30 | 长城汽车股份有限公司 | Integrated structure of oil pump and vacuum pump of automobile engine |
| CN102900519B (en) * | 2012-09-24 | 2015-08-26 | 长城汽车股份有限公司 | A kind of automobile engine oil pump and vacuum pump integrated morphology |
| CN105793567A (en) * | 2014-01-09 | 2016-07-20 | 株式会社信行 | Two-liquid-type, double-row structured trochoid pump for transferring high-viscosity liquids under high pressure |
| US20170037849A1 (en) * | 2014-01-09 | 2017-02-09 | Shinhang Co., Ltd. | Two-liquid-type, double-row structured trochoid pump for transferring high-viscosity liquids under high pressure |
| CN108105373A (en) * | 2018-01-11 | 2018-06-01 | 东风商用车有限公司 | Gearbox oil pump shell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080611 |