CN203549341U - Blade type variable-displacement pump - Google Patents
Blade type variable-displacement pump Download PDFInfo
- Publication number
- CN203549341U CN203549341U CN201320637372.6U CN201320637372U CN203549341U CN 203549341 U CN203549341 U CN 203549341U CN 201320637372 U CN201320637372 U CN 201320637372U CN 203549341 U CN203549341 U CN 203549341U
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- CN
- China
- Prior art keywords
- oil
- groove
- pump housing
- rotor
- pump 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.)
- Expired - Lifetime
Links
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 239000000945 filler Substances 0.000 claims description 8
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 52
- 238000010586 diagram Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model discloses a blade type variable-displacement pump, which comprises a pump body, an eccentric ring, a rotor and an eccentric blade wheel, wherein the pump body is provided with an inner cavity, an oil inlet and an oil outlet; the rotor is provided with a plurality of blades which can move along a radial direction; a cavity between the eccentric ring and the rotor is partitioned into a plurality of hydraulic cavities of unequal volume values by the blades; one side of the outer circumferential wall of the eccentric ring is hinged to the pump body through a cylindrical pin, and the other side of the outer circumferential wall is sealed together with the pump body through a sealing element; the inner cavity of the pump body is partitioned into an oil inlet cavity and an oil return cavity by the cylindrical pin and the sealing element; a spring is arranged in the inner cavity of the pump body; the eccentric ring is provided with an extension arm for compressing the spring; a groove for accommodating the spring is formed on the inner cavity of the pump body below the extension arm; the inner cavity wall of the pump body at the upper end of the groove is provided with an oil conducting groove communicated with the groove; the groove and the oil conducting groove are both communicated with the oil return cavity. The blade type variable-displacement pump has the advantages of low energy consumption and good energy-saving effect.
Description
Technical field
The utility model relates to a kind of automobile displacement pump, is specifically a kind of blade type variable-displacement pump.
Background technique
Variable-displacement pump is a kind of oil pump that changes engine displacement according to the variation of load, as disclosed a notice of authorization number on State Intellectual Property Office website, be CN203099277U, name is called the utility model patent of displacement-variable oil pump, its disclosed technological scheme comprises oil pump body, described oil pump body comprises the pump housing, pump cover, eccentric hoop, rotor and eccentric blade wheel, described pump cover is fixedly connected on the pump housing, in the pump housing, be provided with inner chamber, in inner chamber, be provided with successively from outside to inside eccentric hoop, rotor and blade wheel, described rotor is provided with multiple radially blades movably, the gap of inner end of described blade is engaged in the radial groove of blade wheel, and multiple blades are divided into multiple volumetric values hydraulic pressure cavity not etc. by the cavity volume between eccentric hoop and rotor, one side of described eccentric hoop outer circle wall is hinged by straight pin and the pump housing, and opposite side is by the first Sealing and pump housing sealing, and straight pin and Sealing are divided into oil suction chamber and oil back chamber by pump housing inner chamber, be positioned on the eccentric hoop outer circle wall of oil suction chamber and have extension arm, a side of extension arm is connected with the pump housing by Returnning spring.The displacement-variable oil pump of this structure is when work, hydraulic oil enters oil suction chamber, the pressure of oil suction chamber raises, the stressed backward direction with Returnning spring of extension arm is swung, thereby drive eccentric hoop to rotate take straight pin as fulcrum, thereby the throw of eccentric between eccentric hoop and blade wheel is reduced, thereby reduce pump delivery.The displacement-variable oil pump of this structure comes with some shortcomings in actual use, the in the situation that of the low discharge capacity of pump, because the high speed oil pressure pressure in oil suction chamber is larger, therefore makes the energy consumption of whole oil pump higher.
Model utility content
The technical problems to be solved in the utility model is, overcomes the defect of above prior art, provides that a kind of energy consumption is low, the blade type variable-displacement pump of good energy-conserving effect.
Technical solution of the present utility model is, provide a kind of blade type variable-displacement pump with following structure: it comprises the pump housing, eccentric hoop, rotor and eccentric blade wheel, the described pump housing is provided with inner chamber, filler opening and oil drain out, described inner chamber is provided with eccentric hoop, rotor and blade wheel from outside to inside successively, described rotor is provided with multiple radially blades movably, the gap of inner end of each blade is engaged in the radial groove on blade wheel, and multiple blade is divided into multiple volumetric values hydraulic pressure cavity not etc. by the cavity volume between eccentric hoop and rotor, one side of described eccentric hoop outer circle wall is hinged by straight pin and the pump housing, opposite side is by Sealing and pump housing sealing, and straight pin and Sealing are divided into oil suction chamber and oil back chamber by the inner chamber of the pump housing, described oil suction chamber is communicated with filler opening, oil back chamber is communicated with oil drain out, the inner chamber of the described pump housing is provided with a spring, described eccentric hoop is provided with the extension arm of a Compress Spring, the inner chamber of the pump housing of described extension arm below is provided with the groove of a putting spring, the internal chamber wall of the pump housing of described groove upper end is provided with an oil guide slot being connected with groove, described groove and oil guide slot are all connected with oil back chamber.
Adopt after above structure, the utility model blade type variable-displacement pump compared with prior art, have the following advantages: this blade type variable-displacement pump is when work, hydraulic oil is in filler opening is filled with oil suction chamber, oil pressure in oil suction chamber raises, the stressed backward direction that has spring of extension arm is swung, thereby drive eccentric hoop to rotate take straight pin as fulcrum, thereby the throw of eccentric between eccentric hoop and blade wheel is reduced, thereby reduction pump delivery, along with the continuous rising of the oil pressure in oil suction chamber, the extension arm of eccentric hoop is rotated further and Compress Spring, when the oil guide slot on the internal chamber wall of the pump housing is exposed from the bottom of extension arm, high pressure oil in oil suction chamber flows in oil back chamber along oil guide slot and groove, thereby the pressure in reduction oil suction chamber, so just can regulate the high speed oil pressure in oil suction chamber, thereby reduce the energy consumption of blade type variable-displacement pump, make its good energy-conserving effect.
As preferably, described oil guide slot is that cross section is semicircular oil guide slot.
Accompanying drawing explanation
Fig. 1 is the Facad structure schematic diagram of the utility model blade type variable-displacement pump.
Fig. 2 is the package assembly schematic diagram of the utility model blade type variable-displacement pump.
As shown in the figure:
1, the pump housing, 2, inner chamber, 3, eccentric hoop, 4, rotor, 5, blade wheel, 6, blade, 7, radial groove, 8, oil suction chamber, 9, oil back chamber, 10, straight pin, 11, Sealing, 12, extension arm, 13, spring, 14, filler opening, 15, groove, 16, oil guide slot.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As depicted in figs. 1 and 2, the utility model blade type variable-displacement pump, it comprises the pump housing 1, eccentric hoop 3, rotor 4 and eccentric blade wheel 5, the described pump housing 1 is provided with inner chamber 2, filler opening 14 and oil drain out, described inner chamber 2 is provided with eccentric hoop 3, rotor 4 and blade wheel 5 from outside to inside successively, described rotor 4 is provided with multiple radially blades 6 movably, the gap of inner end of each blade 6 is engaged in the radial groove 7 on blade wheel 5, and multiple blade 6 is divided into multiple volumetric values hydraulic pressure cavity not etc. by the cavity volume between eccentric hoop 3 and rotor 4, one side of described eccentric hoop 3 outer circle walls is hinged by straight pin 10 and the pump housing 1, opposite side seals by Sealing 11 and the pump housing 1, and straight pin 10 and Sealing 11 are divided into oil suction chamber 8 and oil back chamber 9 by the inner chamber of the pump housing 12, described oil suction chamber 8 is communicated with filler opening 14, oil back chamber 9 is communicated with oil drain out, the inner chamber 2 of the described pump housing 1 is provided with a spring 13, described eccentric hoop 3 is provided with the extension arm 12 of a Compress Spring 13, the inner chamber 2 of the pump housing 1 of described extension arm 12 belows is provided with the groove 15 of a putting spring 13, inner chamber 2 walls of the pump housing 1 of described groove 15 upper ends are provided with an oil guide slot 16 being connected with groove 15, described groove 15 and oil guide slot 16 are all connected with oil back chamber 9.
Described oil guide slot 16 for cross section be semicircular oil guide slot 16.
Claims (2)
1. a blade type variable-displacement pump, it comprises the pump housing (1), eccentric hoop (3), rotor (4) and eccentric blade wheel (5), the described pump housing (1) is provided with inner chamber (2), filler opening (14) and oil drain out, described inner chamber (2) is provided with eccentric hoop (3) from outside to inside successively, rotor (4) and blade wheel (5), described rotor (4) is provided with multiple radially blades (6) movably, the gap of inner end of each blade (6) is engaged in the radial groove (7) on blade wheel (5), and multiple blades (6) are divided into multiple volumetric values hydraulic pressure cavity not etc. by the cavity volume between eccentric hoop (3) and rotor (4), one side of described eccentric hoop (3) outer circle wall is hinged by straight pin (10) and the pump housing (1), opposite side is by Sealing (11) and the pump housing (1) sealing, and straight pin (10) and Sealing (11) are divided into oil suction chamber (8) and oil back chamber (9) by the inner chamber of the pump housing (1) (2), described oil suction chamber (8) is communicated with filler opening (14), oil back chamber (9) is communicated with oil drain out, the inner chamber (2) of the described pump housing (1) is provided with a spring (13), described eccentric hoop (3) is provided with the extension arm (12) of a Compress Spring (13), it is characterized in that: the inner chamber (2) of the pump housing (1) of described extension arm (12) below is provided with the groove (15) of a putting spring (13), inner chamber (2) wall of the pump housing (1) of described groove (15) upper end is provided with an oil guide slot (16) being connected with groove (15), described groove (15) and oil guide slot (16) are all connected with oil back chamber (9).
2. blade type variable-displacement pump according to claim 1, is characterized in that: described oil guide slot (16) for cross section be semicircular oil guide slot (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320637372.6U CN203549341U (en) | 2013-10-16 | 2013-10-16 | Blade type variable-displacement pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320637372.6U CN203549341U (en) | 2013-10-16 | 2013-10-16 | Blade type variable-displacement pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203549341U true CN203549341U (en) | 2014-04-16 |
Family
ID=50467455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320637372.6U Expired - Lifetime CN203549341U (en) | 2013-10-16 | 2013-10-16 | Blade type variable-displacement pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203549341U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111980914A (en) * | 2020-08-05 | 2020-11-24 | 宁波圣龙汽车动力系统股份有限公司 | Variable-displacement double-acting vane pump |
-
2013
- 2013-10-16 CN CN201320637372.6U patent/CN203549341U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111980914A (en) * | 2020-08-05 | 2020-11-24 | 宁波圣龙汽车动力系统股份有限公司 | Variable-displacement double-acting vane pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
|
| CX01 | Expiry of patent term |