CN205026076U - Automatic transmission oil pump nozzle inlet device - Google Patents
Automatic transmission oil pump nozzle inlet device Download PDFInfo
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- CN205026076U CN205026076U CN201520591919.2U CN201520591919U CN205026076U CN 205026076 U CN205026076 U CN 205026076U CN 201520591919 U CN201520591919 U CN 201520591919U CN 205026076 U CN205026076 U CN 205026076U
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- oil pump
- automatic transmission
- inlet device
- oil
- nozzle inlet
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Abstract
The utility model discloses an automatic transmission oil pump nozzle inlet device, wherein, including oil pump casing, nozzle sleeve and sealing washer, the oil pump casing has the oil pump import, and nozzle sleeve installs in the oil pump import, and during the use, the nozzle sleeve suit is on automatic transmission's oil filter outlet pipe, and the sealing washer is installed between oil filter outlet pipe and nozzle sleeve. Utilize the utility model discloses an automatic transmission oil pump nozzle inlet device can prevent effectively that the outside air from getting into the oil pump, can effectively utilize the oily energy of output, improves the high -speed speed restriction that packs of oil pump, solves high -speed noise of oil pump and cavitation erosion scheduling problem, guarantees the stability of oil pressure, the utility model discloses an automatic transmission oil pump nozzle inlet device compact structure, it is small, simple process, low cost has good application prospect.
Description
Technical field
The utility model relates to automobile technical field, is specifically related to a kind of oil pump for automatic transmission nozzle inlet device.
Background technique
Common automatic transmission case oil pump generally includes gear pump and the large class of vane pump two, for blade type oil pump, as Fig. 1 and Fig. 2, the oil pump import 1 ' of traditional blade type oil pump is cylindrical shape, this cylindrical shape import 1 ' becomes one with oil pump case 2 ', during work, automatic transmission fluid enters oil pump casing body cavity 3 ' by cylindrical shape import 1 ', blade rotary forms sealed volume change between adjacent two blades, thus form oil pump flow output, the size of flow is directly proportional to pump speed, and rotating speed is higher, and flow is larger.But, when rotating speed is elevated to certain definite value, because the oil mass of cylindrical shape oil pump import 1 ' can not be full of oil pump casing body cavity 3 ' completely, then flow no longer increases, and oil-feed is insufficient, easily makes air enter oil pump, there is cavitation erosion problem, cause pressure fuel pump unstable, oil pump noise, even pump housing surface structure damages.
Summary of the invention
In view of this, the utility model proposes a kind of oil pump for automatic transmission nozzle inlet device, to solve the problems of the prior art, can prevent outside air from entering oil pump.
The utility model proposes a kind of oil pump for automatic transmission nozzle inlet device, it is characterized in that, comprise oil pump case, nozzle sleeve and seal ring; Wherein, oil pump case has oil pump import, and nozzle sleeve is arranged in oil pump import, and during use, nozzle sleeve is sleeved on the oil purifier outer pipe of automatic transmission case, and seal ring is arranged between oil purifier outer pipe and nozzle sleeve.
, wherein, preferably, there is gap between the inwall of oil pump import and the outer wall of nozzle sleeve in oil pump for automatic transmission nozzle inlet device as above, this gap forms conical area 7.
Oil pump for automatic transmission nozzle inlet device as above, wherein, preferably, oil pump case has oil pump Bypass outlet, the inner chamber of oil pump case is communicated with conical area by oil pump Bypass outlet.
Oil pump for automatic transmission nozzle inlet device as above, wherein, preferably, nozzle sleeve is 3 stops hollow circular cylinder, and this 3 stops hollow circular cylinder has three diameters, and three diameters successively decrease.
Oil pump for automatic transmission nozzle inlet device as above, wherein, preferably, 3 stops hollow circular cylinder comprises first paragraph cylindrical body, second segment cylindrical body and the 3rd section of cylindrical body, and three's diameter successively decreases; Wherein, the cylindrical end of first paragraph is provided with the first flange, and the outward edge diameter of the first flange is greater than the cylindrical diameter of first paragraph.
Oil pump for automatic transmission nozzle inlet device as above, wherein, preferably, the 3rd section of cylindrical outer wall profile is conical.
Oil pump for automatic transmission nozzle inlet device as above, wherein, preferably, first paragraph cylindrical body and oil pump import interference fit, second segment cylindrical body and oil purifier outer pipe interference fit, seal ring is arranged between first paragraph cylindrical body and oil purifier outer pipe.
Oil pump for automatic transmission nozzle inlet device as above, wherein, preferably, one end of seal ring has the second outside flange.
Oil pump for automatic transmission nozzle inlet device of the present utility model is utilized effectively to prevent outside air from entering oil pump, effectively can utilize and export oily energy, improve oil pump high-speed filling maximum speed limit, solve the problem such as oil pump high speed noise and cavitation erosion, ensure the stability of oil pressure; Oil pump for automatic transmission nozzle inlet apparatus structure of the present utility model is compact, and volume is little, and technique is simple, with low cost, has a good application prospect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the oil pump inlet system of conventional leaf chip automatic transmission case.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the perspective view of oil pump case in the unit injector inlet means of the utility model embodiment.
Fig. 4 is the perspective view of nozzle sleeve in the unit injector inlet means of the utility model embodiment.
Fig. 5 is the perspective view of seal ring in the unit injector inlet means of the utility model embodiment.
Fig. 6 is the sectional view of the mounting structure of the unit injector inlet means of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the technical solution of the utility model is described in detail.
The utility model embodiment provides a kind of oil pump for automatic transmission nozzle inlet device, comprising: oil pump case 1, nozzle sleeve 3 and seal ring 4, Fig. 3-5 respectively illustrates the perspective view of three, and Fig. 6 is the sectional view that three is arranged in automatic transmission case.
Specifically, oil pump case 1 has oil pump import 2, and nozzle sleeve 3 is arranged in oil pump import 2, and during use, nozzle sleeve 3 is sleeved on oil purifier outer pipe 5, and seal ring 4 is arranged between oil purifier outer pipe 5 and nozzle sleeve 3.
Wherein, oil pump case 1 has oil pump Bypass outlet 6, adding man-hour both can be one-body molded.Wherein, there is gap between the inwall of oil pump import 2 and the outer wall of nozzle sleeve 3, this gap forms conical area 7.Further, oil pump casing body cavity is communicated with conical area 7 by oil pump Bypass outlet 6.
As Fig. 4, nozzle sleeve 3 is 3 stops hollow circuit cylinder body structure, and 3 stops refers to that this hollow circular cylinder has three diameters, and three diameters successively decrease.In Fig. 4, the diameter of first paragraph cylindrical body 13, second segment cylindrical body 14 and the 3rd section of cylindrical body 15 successively decreases.
Wherein, the outward edge diameter that the end of first paragraph cylindrical body 13 is provided with the first flange 16, first flange 16 is greater than the diameter of first paragraph cylindrical body 13.First flange 16 plays fixed nozzle sleeve 3, prevents being pressed into nozzle sleeve 3 in the process of oil pump import 2 at oil purifier outer pipe 5 and moves axially and enter into diffusion chamber 8.
Wherein, the outer wall profile of the 3rd section of cylindrical body 15 is conical, thus forms aforesaid conical area 7.
Further, as Fig. 5, one end of seal ring 4 has the second outside flange 12.Seal ring 4 is set on oil purifier outer pipe 5, and the second flange 12 plays fixed seal ring 4, prevents being pressed into seal ring 4 in the process of oil pump import 2 at oil purifier outer pipe 5 and moves axially and enter into diffusion chamber 8.
During installation, nozzle sleeve 3 is loaded in the oil pump import 2 on oil pump case 1, then oil purifier outer pipe 5 is pressed in nozzle sleeve 3.Wherein, first paragraph cylindrical body 13 and oil pump import 2 interference fit.Second segment cylindrical body 14 and oil purifier outer pipe 5 interference fit, seal ring 4 is arranged between first paragraph cylindrical body 13 and oil purifier outer pipe 5, thus oil pump case 1 and oil purifier 9 is coupled together.The tightness between oil pump import 2, nozzle sleeve 3, oil purifier outer pipe 5 can be ensured, prevent air from entering in diffusion chamber 8.
In embodiment of the present utility model, nozzle sleeve 3 adopts aluminum alloy material, is formed by machining manufacture.Material and the pump housing material of nozzle sleeve 3 are close, can ensure that part all can closely cooperate in heat expansion pyrocondensation situation.
During work, gear box oil is sucked into oil pump import 2 from oil purifier 9, and enter in diffusion chamber 8, oil pump blade 10 rotates, volume-variation, exports high pressure oil, for gearbox working connection pressure from fuel pump outlet (not shown); When oil pump output oil mass is greater than gearbox demand oil mass, unnecessary outlet high pressure oil gets back to the conical area 7 between the inwall of oil pump import 2 and the outer wall of nozzle sleeve 3 by oil pump Bypass outlet 6, then pressure reduces, and flow velocity increases, and makes oil pump import 2 suck more oil inlet quantities; From oil purifier 9 suck gear box oil and flow through conical area 7 outlet pressure oil, after mixing is met in the diffusion chamber 8 at oil pump import 2 rear portion, flow velocity slows down, pressure increases, and makes a part of kinetic energy be converted into pressure energy again, exports as pressure oil by oil pump, thus realize effectively utilizing exporting oily energy, improve oil pump high-speed filling maximum speed limit, the problems such as oil pump high speed noise and cavitation erosion can be solved, and ensure the stability of oil pressure.
The oil pump for automatic transmission nozzle inlet apparatus structure that the utility model provides is compact, and volume is little, and technique is simple, with low cost, has great application prospect.
Above, be described in detail in conjunction with specific embodiments to the technical solution of the utility model, described specific embodiment understands thought of the present utility model for helping.The derivation that those skilled in the art make on the basis of the utility model specific embodiment and modification also belong within the utility model protection domain.
Claims (8)
1. an oil pump for automatic transmission nozzle inlet device, is characterized in that, comprises oil pump case, nozzle sleeve and seal ring; Wherein, oil pump case has oil pump import, and nozzle sleeve is arranged in oil pump import, and during use, nozzle sleeve is sleeved on the oil purifier outer pipe of automatic transmission case, and seal ring is arranged between oil purifier outer pipe and nozzle sleeve.
2. oil pump for automatic transmission nozzle inlet device as claimed in claim 1, is characterized in that wherein, there is gap between the inwall of oil pump import and the outer wall of nozzle sleeve, and this gap forms conical area.
3. oil pump for automatic transmission nozzle inlet device as claimed in claim 2, it is characterized in that, wherein, oil pump case has oil pump Bypass outlet, the inner chamber of oil pump case is communicated with conical area by oil pump Bypass outlet.
4. oil pump for automatic transmission nozzle inlet device as claimed in claim 1, it is characterized in that, wherein, nozzle sleeve is 3 stops hollow circular cylinder, and this 3 stops hollow circular cylinder has three diameters, and three diameters successively decrease.
5. oil pump for automatic transmission nozzle inlet device as claimed in claim 4, it is characterized in that, wherein, 3 stops hollow circular cylinder comprises first paragraph cylindrical body, second segment cylindrical body and the 3rd section of cylindrical body, and three's diameter successively decreases; Wherein, the cylindrical end of first paragraph is provided with the first flange, and the outward edge diameter of the first flange is greater than the cylindrical diameter of first paragraph.
6. oil pump for automatic transmission nozzle inlet device as claimed in claim 5, is characterized in that, wherein, the 3rd section of cylindrical outer wall profile is conical.
7. oil pump for automatic transmission nozzle inlet device as claimed in claim 6, it is characterized in that, wherein, first paragraph cylindrical body and oil pump import interference fit, second segment cylindrical body and oil purifier outer pipe interference fit, seal ring is arranged between first paragraph cylindrical body and oil purifier outer pipe.
8. oil pump for automatic transmission nozzle inlet device as claimed in claim 1, it is characterized in that, wherein, one end of seal ring has the second outside flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520591919.2U CN205026076U (en) | 2015-08-03 | 2015-08-03 | Automatic transmission oil pump nozzle inlet device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520591919.2U CN205026076U (en) | 2015-08-03 | 2015-08-03 | Automatic transmission oil pump nozzle inlet device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205026076U true CN205026076U (en) | 2016-02-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520591919.2U Active CN205026076U (en) | 2015-08-03 | 2015-08-03 | Automatic transmission oil pump nozzle inlet device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205026076U (en) |
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2015
- 2015-08-03 CN CN201520591919.2U patent/CN205026076U/en active Active
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| GR01 | Patent grant |