CN204284884U - Engine oil pump assembly - Google Patents
Engine oil pump assembly Download PDFInfo
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- CN204284884U CN204284884U CN201420777060.XU CN201420777060U CN204284884U CN 204284884 U CN204284884 U CN 204284884U CN 201420777060 U CN201420777060 U CN 201420777060U CN 204284884 U CN204284884 U CN 204284884U
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- engine
- pump assembly
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Abstract
The utility model discloses a kind of engine oil pump assembly, comprise the pump case being provided with oil suction chamber, described pump case being also provided with the seal groove for sealing described oil suction chamber; Described pump case is also provided with oil outlet and be communicated with described oil outlet go out oil pocket I, described seal groove be with described go out oil pocket I communicate by filling up high-pressure oil to realize oil-tightening oil groove; Engine oil pump assembly of the present utility model, its pump case is provided with the seal groove being specifically designed to and being sealed into oil pocket, seal groove prevents air to be inhaled in oil suction chamber by oil-sealing measures effectively, avoid engine oil pressure deficiency and machine oil foamed, ensure smooth delivery of power and the lubricating quality of machine oil, thus the overall performance of motor is strengthened, increasing service life of engine, raising energy-saving effect.
Description
Technical field
The utility model relates to a kind of engine components, particularly a kind of engine oil pump assembly.
Background technique
The power source of engine oil pump to be oil pump be engine oil pressure and flow in lubricating system, its ensures engine oil pressure required for engine lubrication and flow; Existing oil pump from structure by being divided into gear type, rotator type, blade type and plunger type, but pump oil principle on all similar; Existing engine oil pump assembly generally comprises pump case and pump cover, pump case is provided with oil suction chamber, goes out oil pocket and corresponding oil duct, during motion, oil suction chamber forms low pressure area, goes out oil pocket formation zone of high pressure, machine oil in oil sump is delivered to oil filter and each oil leab, with each main movement parts of lubricating engine, and machine oil is made to obtain filtering; Pump case is pressed with end face mutually with pump cover, with each functional chamber on seal cage; But, this sealing means is unsatisfactory, especially for the oil suction chamber of area of low pressure, be specifically designed to owing to pump case not having arrange the structure being sealed into oil pocket, cause air to be inhaled in oil suction chamber, not only cause engine oil pressure not enough, impact conveying, and air mixes with machine oil and makes machine oil foamed and reduce lubricating quality, directly weaken the overall performance of motor, especially shorten the working life of motor and reduce energy-saving effect.
Therefore, for solving the problem, just need a kind of engine oil pump assembly, its pump case is provided with the structure being specifically designed to and being sealed into oil pocket, effectively prevent air to be inhaled in oil suction chamber, avoid engine oil pressure deficiency and machine oil foamed, ensure smooth delivery of power and the lubricating quality of machine oil, thus the overall performance of motor is strengthened, increasing service life of engine, raising energy-saving effect.
Model utility content
In view of this, the purpose of this utility model is to provide a kind of engine oil pump assembly, its pump case is provided with the structure being specifically designed to and being sealed into oil pocket, air is effectively prevented to be inhaled in oil suction chamber, avoid engine oil pressure deficiency and machine oil foamed, ensure smooth delivery of power and the lubricating quality of machine oil, thus the overall performance of motor is strengthened, increasing service life of engine, raising energy-saving effect.
Engine oil pump assembly of the present utility model, comprises the pump case being provided with oil suction chamber, described pump case is also provided with the seal groove for sealing described oil suction chamber; Described pump case is also provided with oil outlet and be communicated with described oil outlet go out oil pocket I, described seal groove be with described go out oil pocket I communicate by filling up high-pressure oil to realize oil-tightening oil groove.
Further, described pump case is also provided with go out that oil pocket I is connected go out oil pocket II, the two ends of described seal groove respectively with described go out oil pocket I and described go out oil pocket II communicate and described oil suction chamber be included in wherein.
Further, this engine oil pump assembly also comprises the pressure limiting assembly for pressure release, and the pressure limiting assembly action when engine oil pressure exceeds predefined value also makes machine oil from going out oil pocket I or go out oil pocket II to carry out reflux pressure letdown.
Further, described oil suction chamber comprises oil suction chamber I and oil suction chamber II, described oil suction chamber I and oil suction chamber II separate and be all communicated with oil sump; Described oil suction chamber II with go out oil pocket II and be communicated with, described pressure limiting assembly comprises and is located at oil suction chamber II and the pressure limiting spool going out oil pocket II connectivity part, and the pressure-limit valve core action when engine oil pressure exceeds predefined value also makes machine oil be back to oil suction chamber II from going out oil pocket II.
Further, described pressure limiting assembly also comprises pressure limiting plug screw and pressure limiting spring, and described pressure limiting spring housing is outside pressure limiting plug screw and in the mode producing pretightening force, pressure limiting spool is resisted against the connectivity part of main oil gallery and return opening.
Further, this engine oil pump assembly also comprises the pump cover be removably connected with described pump case, and described pump cover pressing also seals described seal groove.
Further, described pump case is provided with the attachment hole for being connected with pump cover, and described attachment hole is all located at the outside of seal groove.
Further, this engine oil pump assembly also comprises internal rotor and external rotor, described internal rotor and external rotor eccentric setting also engage by conjugation tooth and form some chamber volume, and described pump case correspondence internal rotor and external rotor are thrown off engagement place and arranged oil suction chamber I, corresponding internal rotor and external rotor and enter engagement place and set out oil pocket I.
Further, described internal rotor is provided with nine external tooths, and external rotor is provided with ten internal tooths.
The beneficial effects of the utility model: engine oil pump assembly of the present utility model, its pump case is provided with the seal groove being specifically designed to and being sealed into oil pocket, seal groove is by oil sealing, water seal or arrange the modes such as seal ring and effectively prevent air to be inhaled in oil suction chamber, avoid engine oil pressure deficiency and machine oil foamed, ensure smooth delivery of power and the lubricating quality of machine oil, thus the overall performance of motor is strengthened, increasing service life of engine, raising energy-saving effect.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model.
Embodiment
Fig. 1 is structural representation of the present utility model, as shown in the figure: the engine oil pump assembly of the present embodiment, comprises the pump case 1 being provided with oil suction chamber, described pump case 1 is also provided with the seal groove 2 for sealing described oil suction chamber; This engine oil pump assembly also comprises the pump cover 3 be removably connected with described pump case 1, and the pressing of described pump cover 3 also seals described seal groove 2; Seal groove 2 is preferably by casting; Pump case 1 is provided with the seal groove 2 being specifically designed to and being sealed into oil pocket, seal groove 2 is by oil sealing, water seal or arrange the modes such as seal ring and effectively prevent air to be inhaled in oil suction chamber, avoid engine oil pressure deficiency and machine oil foamed, ensure smooth delivery of power and the lubricating quality of machine oil, thus the overall performance of motor is strengthened, increasing service life of engine, raising energy-saving effect.
In the present embodiment, described pump case 1 is also provided with oil outlet 4 and be communicated with described oil outlet 4 go out oil pocket I 51, described seal groove 2 for described go out oil pocket I 51 communicate by filling up high-pressure oil to realize oil-tightening oil groove; Oil groove completely cuts off air to make oil suction chamber, its good airproof performance by filling machine oil, effectively can completely cut off air; Machine oil is transported to the lubricant housings of motor by oil outlet 4; Go out the high-pressure area that oil pocket I 51 is pumping machine oil; Adopt this structure can realize the selfsealings of engine oil pump assembly, namely the isolated medium in seal groove 2 is the lubrication oil in engine system, fuel feeding carries out with sealing simultaneously, there is not the wear problem brought because using seal ring, high-pressure oil makes the minimum space between pump case 1 and pump cover 3 end face up, significant sealing affection.
In the present embodiment, described pump case 1 is also provided with go out that oil pocket I 51 is connected go out oil pocket II 52, the two ends of described seal groove 2 respectively with described go out oil pocket I 51 and described go out oil pocket II 52 communicate and described oil suction chamber be included in wherein; The one end open of seal groove 2 is positioned at oil pocket I 51, the other end opening is positioned at oil pocket II 52, is formed and connects oil pocket I 51 and the passage going out oil pocket II 52; Going out oil pocket II 52 can be the part oil pocket I 51, also can independent of going out oil pocket I 51, going out oil pocket I 51 and going out the positioning block be provided with between oil pocket II 52 for locating oil suction mechanism of the present embodiment, is provided with and is communicated with oil pocket I 51 and the duct going out oil pocket II 52 in positioning block; Contain and refer to that seal groove 2 has the part be set up in parallel outside oil suction chamber, to completely cut off air comprehensively.
In the present embodiment, this engine oil pump assembly also comprises the pressure limiting assembly 7 for pressure release, and pressure limiting assembly 7 action when engine oil pressure exceeds predefined value also makes machine oil from going out oil pocket I 51 or go out oil pocket II 52 to carry out reflux pressure letdown; Pressure limiting assembly 7 is utilized to set a pressure limiting to this engine oil pump assembly, when going out oil pocket I 51 pressure and exceeding predefined value, the Equilibrator of pressure limiting assembly 7 is opened automatically, play the effect of automatic overflow pressure release, avoid the phenomenon occurring damaging the oil duct annexes such as oil pressure gauge, oil pipe, Sealing owing to pumping overpressure.
In the present embodiment, described oil suction chamber comprises oil suction chamber I 61 and oil suction chamber II 62, described oil suction chamber I 61 and oil suction chamber II 62 separate and be all communicated with oil sump; Described oil suction chamber II 62 with go out oil pocket II 52 and be communicated with, described pressure limiting assembly 7 comprises the pressure limiting spool being located at oil suction chamber II 62 and going out oil pocket II 52 connectivity part, and the pressure-limit valve core action when engine oil pressure exceeds predefined value also makes machine oil be back to oil suction chamber II 62 from going out oil pocket II 52; Oil suction chamber II 62 is exclusively used in oil return, avoids interfering with oil suction chamber I 61; In the present embodiment, described pressure limiting assembly 7 also comprises pressure limiting plug screw and pressure limiting spring, and described pressure limiting spring housing is outside pressure limiting plug screw and in the mode producing pretightening force, pressure limiting spool is resisted against the connectivity part of main oil gallery and return opening.
In the present embodiment, described pump case 1 is provided with the attachment hole 11 for being connected with pump cover 3, and described attachment hole 11 is all located at the outside of seal groove 2; Pump cover 3 is also provided with corresponding attachment hole 11, pump case 1 and pump cover 3 are fixed together through attachment hole 11 by link 8; Link 8 is preferably clamping bolt, and just with dismounting, replacing, now attachment hole 11 is screw; Attachment hole 11 is all located at the outside of seal groove 2, and the basis keeping pump case 1 compact structure realizes the sealing to seal groove 2; Attachment hole 11 is preferably six, and any three attachment holes 11 all can form triangle joint structure, strengthens and connects tightness.
In the present embodiment, this engine oil pump assembly also comprises internal rotor 91 and external rotor 92, described internal rotor 91 and external rotor 92 eccentric setting also engage by conjugation tooth and form some chamber volume, and the corresponding internal rotor of described pump case 1 91 and external rotor 92 are thrown off engagement place and arranged oil suction chamber I 61, corresponding internal rotor 91 and external rotor 92 and enter engagement place and set out oil pocket I 51; This engine oil pump assembly adopts rotator type structure, has the advantages such as boundary dimension is little, lightweight, oil suction degree of vacuum large, fuel feeding uniformity is good, is specially adapted to medium and small motor; Internal rotor 91 is provided with the round square hole for being in transmission connection in engine crankshaft or camshaft; Preferably, internal rotor 91 and external rotor 92 are eccentric structure, and the profile of their working surfaces is a pair conjugate curve, neither interfere also do not depart from when engaging each other.
In the present embodiment, described internal rotor 91 is provided with nine external tooths, and external rotor 92 is provided with ten internal tooths; Adopt this structure, can produce the chamber volume of ten circulation change, fuel delivery is large, and fuel feeding is even, can meet the requirement of air inlet engine working pressure.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (9)
1. an engine oil pump assembly, comprises the pump case being provided with oil suction chamber, it is characterized in that: described pump case is also provided with the seal groove for sealing described oil suction chamber; Described pump case is also provided with oil outlet and be communicated with described oil outlet go out oil pocket I, described seal groove be with described go out oil pocket I communicate by filling up high-pressure oil to realize oil-tightening oil groove.
2. engine oil pump assembly according to claim 1, it is characterized in that: described pump case is also provided with go out that oil pocket I is connected go out oil pocket II, the two ends of described seal groove respectively with described go out oil pocket I and described go out oil pocket II communicate and described oil suction chamber be included in wherein.
3. engine oil pump assembly according to claim 1, it is characterized in that: this engine oil pump assembly also comprises the pressure limiting assembly for pressure release, the pressure limiting assembly action when engine oil pressure exceeds predefined value also makes machine oil from going out oil pocket I or go out oil pocket II to carry out reflux pressure letdown.
4. engine oil pump assembly according to claim 3, is characterized in that: described oil suction chamber comprises oil suction chamber I and oil suction chamber II, described oil suction chamber I and oil suction chamber II separate and be all communicated with oil sump; Described oil suction chamber II with go out oil pocket II and be communicated with, described pressure limiting assembly comprises the pressure limiting spool being located at oil suction chamber II Yu going out oil pocket II connectivity part, and the pressure-limit valve core action when engine oil pressure exceeds predefined value also makes machine oil be back to oil suction chamber II from going out oil pocket II.
5. engine oil pump assembly according to claim 4, it is characterized in that: described pressure limiting assembly also comprises pressure limiting plug screw and pressure limiting spring, described pressure limiting spring housing is outside pressure limiting plug screw and in the mode producing pretightening force, pressure limiting spool is resisted against the connectivity part of main oil gallery and return opening.
6. engine oil pump assembly according to claim 1, is characterized in that: this engine oil pump assembly also comprises the pump cover be removably connected with described pump case, and described pump cover pressing also seals described seal groove.
7. engine oil pump assembly according to claim 6, is characterized in that: described pump case is provided with the attachment hole for being connected with pump cover, and described attachment hole is all located at the outside of seal groove.
8. the engine oil pump assembly according to any one of claim 1 to 7, it is characterized in that: this engine oil pump assembly also comprises internal rotor and external rotor, described internal rotor and external rotor eccentric setting also engage by conjugation tooth and form some chamber volume, and described pump case correspondence internal rotor and external rotor are thrown off engagement place and arranged oil suction chamber I, corresponding internal rotor and external rotor and enter engagement place and set out oil pocket I.
9. engine oil pump assembly according to claim 8, is characterized in that: described internal rotor is provided with nine external tooths, and external rotor is provided with ten internal tooths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420777060.XU CN204284884U (en) | 2014-12-10 | 2014-12-10 | Engine oil pump assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420777060.XU CN204284884U (en) | 2014-12-10 | 2014-12-10 | Engine oil pump assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204284884U true CN204284884U (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201420777060.XU Active CN204284884U (en) | 2014-12-10 | 2014-12-10 | Engine oil pump assembly |
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| CN (1) | CN204284884U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206994A (en) * | 2019-07-05 | 2019-09-06 | 湖南机油泵股份有限公司 | A kind of rotor-type oil pump preventing oil suction chamber air inlet |
-
2014
- 2014-12-10 CN CN201420777060.XU patent/CN204284884U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206994A (en) * | 2019-07-05 | 2019-09-06 | 湖南机油泵股份有限公司 | A kind of rotor-type oil pump preventing oil suction chamber air inlet |
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