CN104100522A - Displacement-variable blade pump with simplified structure - Google Patents

Displacement-variable blade pump with simplified structure Download PDF

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Publication number
CN104100522A
CN104100522A CN201410321923.7A CN201410321923A CN104100522A CN 104100522 A CN104100522 A CN 104100522A CN 201410321923 A CN201410321923 A CN 201410321923A CN 104100522 A CN104100522 A CN 104100522A
Authority
CN
China
Prior art keywords
variable
slide block
pump
cavity
pump housing
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
Application number
CN201410321923.7A
Other languages
Chinese (zh)
Inventor
许仲秋
杨正中
宋善国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Oil Pump Co Ltd
Original Assignee
Hunan Oil Pump Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hunan Oil Pump Co Ltd filed Critical Hunan Oil Pump Co Ltd
Priority to CN201410321923.7A priority Critical patent/CN104100522A/en
Publication of CN104100522A publication Critical patent/CN104100522A/en
Pending legal-status Critical Current

Links

Abstract

The invention discloses a displacement-variable blade pump with a simplified structure. The displacement-variable blade pump comprises a pump body, a variable slide block, a rotor, a blade, a positioning support ting, a variable spring and a feedback oil cavity, wherein a cavity is formed in the pump body; the variable slide block, the rotor, the blade, the positioning support ring and the variable spring are all mounted in the cavity of the pump body; a pressure plate is arranged on the variable slide block, and is contacted with and fits the variable spring; a positioning cylindrical ring is arranged at the other end, corresponding to the pressure plate, of the variable slide block, and is provided with an opening groove or a through hole; a cylindrical hole fitting the positioning cylindrical ring of the variable slide block is formed in one side of the cavity of the pump body; the positioning cylindrical ring of the variable slide block tightly fits the cylindrical hole of the pump body; and the variable slide block is swung in the cavity of the pump body with the cylindrical hole of the pump body as axis under the resultant action of the oil pressure of the feedback oil cavity, the elastic force of the variable spring and the positioning support ring. As a rotating pin is not used, the cost is reduced, and the spatial distribution of the pump body structure is simplified.

Description

A kind of variable displacement vane pump of designs simplification
Technical field
The present invention relates to lubricating system of IC engine technical field, variable displacement blade type oil pump for especially a kind of internal-combustion engine.
Background technique
The core part variable slide block of variable displacement vane pump in prior art conventionally adopts rotating dog structure orientation assemble in the time coordinating with the pump housing, pump cover, higher to rotating dog surface requirements, and the pump housing and pump cover also must increase installation rotating dog pilot hole and install.Be embodied in: 1, adopt rotating dog structural formula vane pump, variable displacement vane pump mechanical efficiency improves limited; 2, rotating dog generally adopts Steel material No. 20 at present, and surface needs carburizing heat treatment, just can reach the surface hardness of regulation, and surface imperfection and hardness requirement are tighter, have increased cost; 3, oil pump body and pump cover must increase structure for being mounted with rotating dog, and must design in addition hyperbaric chamber bifurcated oil duct, be used for connecting oil outlet oil duct, increased the pump housing, pump cover component material weight and Design of Dies exploitation and manufacture, maintenance cost etc.; 4, variable-displacement pump oil pump body and pump cover are installed rotating dog projective structure because increasing, and cause taking design space layout (being mainly layout safety valve structure, main oil gallery or pump discharge feedback oil circuit etc.), increase project development cost etc.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of variable slide block does not need that rotating dog positions, the variable displacement vane pump of designs simplification.
For solving the problems of the technologies described above, technological scheme of the present invention is: a kind of variable displacement vane pump of designs simplification, comprises the pump housing, variable slide block, rotor, blade, positioning support pushing out ring, variable spring and feedback oil pocket; The described pump housing is provided with cavity, and described variable slide block, rotor, blade, positioning support pushing out ring and variable spring are installed in the cavity of the pump housing, and described variable slide block is provided with pressing plate, and this pressing plate coordinates with variable spring contact; On variable slide block, the other end of corresponding pressing plate is provided with a setting circle band of column, this setting circle band of column is provided with an opening slot or through hole, cavity one side of the described pump housing is provided with the cylindrical hole adapting with the variable slide block setting circle band of column, the setting circle band of column of variable slide block is adjacent to and coordinates with the cylindrical hole of the pump housing, described variable slide block, feeding back under the elastic force and positioning supports ring force action of the oil pressure of oil pocket, variable spring, swings as axle center taking the cylindrical hole of the pump housing in the cavity of the pump housing.
In technique scheme, due to the structure of variable slide block is optimized to improvement, increase a setting circle band of column at variable slide block, correspondingly in the cavity of the pump housing, be provided with a cylindrical hole simultaneously, the setting circle band of column of variable slide block is just in time positioned at the cylindrical hole of the pump housing, feeding back under the elastic force and positioning supports ring force action of the oil pressure of oil pocket, variable spring, variable slide block just can be taking the cylindrical hole of the pump housing as axle center in the cavity of the pump housing rotary oscillation, realized and do not needed to install rotating dog and also can position rotation.Owing to having reduced rotating dog, not only reduce hardware cost, and can simplify the spatial design layout of pump body structure, improve the mechanical efficiency of vane pump.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in the figure, the preferred embodiments of the present invention are: a kind of variable displacement vane pump of designs simplification, comprises the pump housing 11, variable slide block 4, rotor 2, blade 5, positioning support pushing out ring 3, variable spring 1 and feedback oil pocket 7; The described pump housing 11 is provided with cavity, and described variable slide block 4, rotor 2, blade 5, positioning support pushing out ring 3 and variable spring 1 are installed in the cavity of the pump housing 11, and described variable slide block 4 is provided with pressing plate 6, and this pressing plate 6 contacts cooperation with variable spring 1; On variable slide block 4, the other end of corresponding pressing plate 6 is provided with a setting circle band of column 10, this setting circle band of column 10 is provided with an opening slot 9, cavity one side of the described pump housing 11 is provided with the cylindrical hole 8 adapting with the setting circle band of column 10 of variable slide block 4, the setting circle band of column 10 of variable slide block 4 is adjacent to and coordinates with the cylindrical hole 8 of the pump housing 11, described variable slide block 4, feeding back under the elastic force and positioning support pushing out ring 3 force actions of the oil pressure of oil pocket 7, variable spring 1, swings as axle center taking the cylindrical hole 8 of the pump housing 11 in the cavity of the pump housing 11.
In the time that the engine oil pressure of feedback oil pocket 7 reaches oil pump set pressure, the elastic force that variable slide block 4 overcomes variable spring 1 produces rotation taking the cylindrical hole 8 of the pump housing 11 as axle center, change eccentric and then change discharge capacity, realizes the object that reduces consumed power.

Claims (1)

1. a variable displacement vane pump for designs simplification, comprises the pump housing, variable slide block, rotor, blade, positioning support pushing out ring, variable spring and feedback oil pocket; The described pump housing is provided with cavity, and described variable slide block, rotor, blade, positioning support pushing out ring and variable spring are installed in the cavity of the pump housing, and described variable slide block is provided with pressing plate, and this pressing plate coordinates with variable spring contact; It is characterized in that: on variable slide block, the other end of corresponding pressing plate is provided with a setting circle band of column, this setting circle band of column is provided with an opening slot or through hole, cavity one side of the described pump housing is provided with the cylindrical hole adapting with the variable slide block setting circle band of column, the setting circle band of column of variable slide block is adjacent to and coordinates with the cylindrical hole of the pump housing, described variable slide block under the elastic force and positioning supports ring force action of oil pressure, the variable spring of feedback oil pocket, taking the cylindrical hole of the pump housing as axle center in the cavity of the pump housing rotary oscillation.
CN201410321923.7A 2014-07-08 2014-07-08 Displacement-variable blade pump with simplified structure Pending CN104100522A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410321923.7A CN104100522A (en) 2014-07-08 2014-07-08 Displacement-variable blade pump with simplified structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410321923.7A CN104100522A (en) 2014-07-08 2014-07-08 Displacement-variable blade pump with simplified structure

Publications (1)

Publication Number Publication Date
CN104100522A true CN104100522A (en) 2014-10-15

Family

ID=51668972

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410321923.7A Pending CN104100522A (en) 2014-07-08 2014-07-08 Displacement-variable blade pump with simplified structure

Country Status (1)

Country Link
CN (1) CN104100522A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009092051A (en) * 2007-10-12 2009-04-30 Hitachi Ltd Variable displacement pump
CN202468308U (en) * 2011-11-03 2012-10-03 湖南机油泵股份有限公司 Three-section pressure feedback variable displacement vane pump with variable high-speed pressure-limiting middle section
CN103104484A (en) * 2011-11-11 2013-05-15 施韦比施冶金厂汽车有限公司 Rotary pump with improved seal
CN203549340U (en) * 2013-10-16 2014-04-16 宁波圣龙汽车动力系统股份有限公司 Variable-displacement pump
CN204025035U (en) * 2014-07-08 2014-12-17 湖南机油泵股份有限公司 A kind of variable displacement vane pump of designs simplification

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009092051A (en) * 2007-10-12 2009-04-30 Hitachi Ltd Variable displacement pump
CN202468308U (en) * 2011-11-03 2012-10-03 湖南机油泵股份有限公司 Three-section pressure feedback variable displacement vane pump with variable high-speed pressure-limiting middle section
CN103104484A (en) * 2011-11-11 2013-05-15 施韦比施冶金厂汽车有限公司 Rotary pump with improved seal
CN203549340U (en) * 2013-10-16 2014-04-16 宁波圣龙汽车动力系统股份有限公司 Variable-displacement pump
CN204025035U (en) * 2014-07-08 2014-12-17 湖南机油泵股份有限公司 A kind of variable displacement vane pump of designs simplification

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Application publication date: 20141015

WD01 Invention patent application deemed withdrawn after publication