CN101984279A - Variable-displacement gear type oil pump - Google Patents
Variable-displacement gear type oil pump Download PDFInfo
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- CN101984279A CN101984279A CN2010105524289A CN201010552428A CN101984279A CN 101984279 A CN101984279 A CN 101984279A CN 2010105524289 A CN2010105524289 A CN 2010105524289A CN 201010552428 A CN201010552428 A CN 201010552428A CN 101984279 A CN101984279 A CN 101984279A
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Abstract
The invention discloses a variable-displacement gear type oil pump, which comprises a pump cover, a pump body, driving gear transmission components, driven gear variable components, control valve components and relief valve components, wherein the pump cover and the pump body are connected together by bolts; the driving gear transmission components consist of transmission gears, a driving shaft and driving gears; the driven gear variable components consist of a driven shaft, driven gears, a segmental slide block, a full-circle slide block and a spring; the control valve components consist of a control contoured plug, a control-valve spring and a control-valve screw plug; and the relief valve components consist of a relief-valve steel ball and a relief-valve spring.
Description
Technical field
The present invention relates to the oil pump of engine lubrication system, particularly a kind of variable-displacement gear-type oil pump.
Background technique
The flow rate of lubricating oil of exporting during oil pump work is at present set according to the engine lubrication needs, and flow of lubrication increases and increases along with engine speed.After engine speed increased, the oil pump fuel delivery also constantly increased, and the oil pressure in each oil duct constantly increases, and the oil temperature rises, and influences lubrication effect and normal working of engine, if motor continues speedup, unnecessary machine oil can only excrete from pressure-limit valve.Its deficiency is: oil pump has been done some lost works, has consumed the useful horsepower of motor more, has reduced the Economy of motor.
Summary of the invention
The objective of the invention is to overcome the above-mentioned deficiency of prior art and provide a kind of when the engine speed conversion, can control oil pressure and fuel delivery voluntarily, keep oil duct internal pressure balance, stable variable-displacement gear-type oil pump.By controlling oil pressure and fuel delivery voluntarily, can reduce the temperature of lubricant oil, improve the greasy property of machine oil, reduce the reactive loss of motor, improve the useful horsepower and the Economy thereof of motor.
Technological scheme of the present invention is: a kind of variable-displacement gear-type oil pump, and it comprises pump cover, the pump housing, driving gear transmission part, driven gear variable parts, adjustment valve components and safety valve parts, the pump cover and the pump housing link together by bolt.
The driving gear transmission part is made up of driving gear, driving shaft and driving gear, driving shaft is installed in the axis hole of the pump housing and pump cover, and the outer end is connected with the driving gear interference, and the middle part is connected with the driving gear interference, driving gear does not have and moves axially, and bears the rotating function of gear pump.
Driven gear variable parts are made up of driven shaft, driven gear, scarce smooth block, wholecircle slide block and spring.One end of driven shaft is connected with scarce smooth block interference, the middle part is connected movingly with driven gear, the other end is connected with the interference of wholecircle slide block, the above-mentioned part member that forms a whole, be installed in the driven gear hole and scarce smooth block hole in the pump housing, reach precision and move axially requirement, connected spring be installed in pump cover be provided with ventilation, with the corresponding spring eye of gear hole center line in, the free end of spring top is contained in the end face of wholecircle slide block step.
Driven gear on the driven gear variable parts and the mutual corresponding engagement of the driving gear on the driving gear transmission part, after driven gear and the engagement of driving gear full-depth tooth, the oil suction chamber on its right side, oil inlet hole and filler opening UNICOM, go out oil pocket, oil outlet and the oil outlet in left side communicate, and constitute the passage of turnover oil.Oil outlet is provided with first screw plug, and the pump housing is provided with second screw plug.Driven gear and driving gear be mutually after the corresponding engagement, by moving axially of driven gear, and conversion flank of tooth contact length, the requirement of realization variable displacement.The bottom in the scarce smooth block hole that lacks smooth block is installed, be provided with scarce circle oil pocket and regulation and control oilhole, lack round oil pocket and communicate, lack the circle oil pocket so that lubricant oil enters with the regulation and control oilhole, promote driven gear variable parts and move down, implement auto-control oil transport pipeline inner engine oil pressure and displacement size.
Adjustment valve components is made up of regulation and control plungers valve core, adjusting control valve spring and adjusting control valve plug screw, regulation and control plungers valve core and adjusting control valve spring are installed in the adjusting control valve valve opening on the pump housing by the adjusting control valve plug screw, regulation and control plungers valve core stage casing is provided with circular groove, and the right-hand member of regulation and control plungers valve core is provided with the cylinder step that is complementary with the adjusting control valve spring.The adjusting control valve valve opening respectively with go out oil pocket, oil suction chamber and lack the circle oil pocket to communicate.In adjusting control valve valve opening bottom, be provided with and oilhole and oil guiding hole at the bottom of the valve that oil road communicates, the adjusting control valve valve opening with go out the corresponding position of oil pocket and be provided with the microscler oilhole of often opening, be provided with and be provided with the pressure release oilhole of normal open at corresponding position for the regulation and control oilhole that opens and closes with the corresponding position of scarce circle oil pocket with oil suction chamber.
The microscler oilhole that goes out oil pocket, adjusting control valve valve opening, normal open communicates with circular groove on the regulation and control plungers valve core, so that the balance regulation plungers valve core can play the stable fuel feeding effect of delaying time when high pressure and low pressure conversion are moved.
The safety valve parts are made up of safety valve steel ball and safety valve spring, safety valve steel ball and safety valve spring are installed in the safe valve opening of the pump housing, by the spring socket on the pump cover safety valve spring, safety valve steel ball are fitted on the aperture of the safe valve opening that communicates with oil outlet simultaneously, the side of safe valve opening is provided with oil drainage hole.Further increase when going out the oil pocket oil pressure, when surpassing normal pressure, the safety valve steel ball on the safe valve opening aperture will be opened the valve oilhole, and the machine oil of using oil pocket is expelled back into oil trap, guarantees the safety of engine oil path system.
The present invention compared with prior art has following characteristics:
The variable-displacement gear-type oil pump has realized that the oil flow rate of transporting to the motor oil duct can change according to the needs of motor, when having guaranteed normal working of engine in the needed fuel delivery, can not make the machine oil in the motor oil duct too much, influence the Performance And Reliability of motor, reduce the power loss of motor, improved the efficient and the Economy of motor.
Below in conjunction with the drawings and specific embodiments detailed structure of the present invention is further described.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention;
Accompanying drawing 2 is the A-A sectional view in the accompanying drawing 1.
Embodiment
As shown in drawings: a kind of variable-displacement gear-type oil pump, it comprises pump cover 1, the pump housing 2, driving gear transmission part 3, driven gear variable parts 4, adjustment valve components 5 and safety valve parts 6, pump cover 1 and the pump housing 2 link together by bolt.
Driving gear transmission part 3 is made up of driving gear 3-1, driving shaft 3-2 and driving gear 3-3, driving shaft 3-2 is installed in the axis hole of the pump housing 2 and pump cover 1, the outer end is connected with driving gear 3-1 interference, the middle part is connected with driving gear 3-3 interference, driving gear 3-3 does not have and moves axially, and bears the rotating function of gear pump.
Driven gear variable parts 4 are made up of driven shaft 4-1, driven gear 4-2, scarce smooth block 4-3, wholecircle slide block 4-4 and spring 4-5.The end of driven shaft 4-1 is connected with scarce smooth block 4-2 interference, the middle part is connected movingly with driven gear 4-2, the other end is connected with wholecircle slide block 4-4 interference, the above-mentioned part member that forms a whole, be installed in the driven gear hole and scarce smooth block hole in the pump housing 2, reach precision and move axially requirement, connected spring 4-5 be installed in pump cover 1 be provided with ventilation, with the corresponding spring eye of gear hole center line in, the free end of spring 4-5 top is contained in the end face of wholecircle slide block 10 steps.
Driven gear 4-2 on the driven gear variable parts 4 and the mutual corresponding engagement of the driving gear 3-3 on the driving gear transmission part 3.After the engagement of driven gear 4-2 and driving gear 3-3 full-depth tooth, the oil suction chamber 2-1 on its right side, oil inlet hole 2-2 and filler opening 2-3 UNICOM, the left side go out oil pocket 2-4, oil outlet 2-5 and oil outlet 2-6 communicates, constitute the passage of turnover oil.Oil outlet 2-5 is provided with first screw plug 7, and the pump housing 2 is provided with second screw plug 8.Driven gear 4-2 and driving gear 3-3 be mutually after the corresponding engagement, by moving axially of driven gear 4-2, and conversion flank of tooth contact length, the requirement of realization variable displacement.The bottom in the scarce smooth block hole that lacks smooth block 4-2 is installed, be provided with and lack circle oil pocket 2-7 and regulation and control oilhole 2-8, lacking circle oil pocket 2-7 communicates with regulation and control oilhole 2-8, so that entering, lubricant oil lacks circle oil pocket 2-7, promote driven gear variable parts 4 and move down, implement purpose the auto-control of oil transport pipeline inner engine oil pressure and displacement size.
The microscler oilhole 2-12 circular groove 2-10 main and on the regulation and control plungers valve core 5-1 that goes out oil pocket 2-4, adjusting control valve valve opening 2-9, normal open communicates, so that balance regulation plungers valve core 5-1 can play the stable fuel feeding effect of delaying time when high pressure and low pressure conversion are moved.
The filler opening 2-3 that the invention provides the variable-displacement gear-type oil pump communicates with Oil sucking device, and oil outlet 2-6 communicates with the oil duct of motor.
The working procedure of regulating oil mass by engine speed is as follows:
1, when engine speed is low, the engine oil pressure difference that goes out oil pocket 2-4 and oil suction chamber 2-1 is less, going out machine oil in the oil pocket 2-4 slightly promotes plungers valve core 5-1 and moves, and slightly compress regulation and control spring 5-3, because regulation and control plungers valve core 5-1 displacement is very little, regulation and control oilhole 2-8 still locates closed condition, the oil pump normal fuel injection.
2, when engine speed increases gradually, after acquiring a certain degree, the engine oil pressure difference that goes out oil pocket 2-4 and oil suction chamber 2-1 increases gradually, the machine oil oilhole 2-11 promotion regulation and control plungers valve core 5-1 at the bottom of oil guiding hole 2-16 and valve that goes out in the oil pocket 2-4 moves, and spring 5-3 compressed, regulation and control plungers valve core 5-1 increases to the position that oil suction chamber 2-1 direction moves, regulation and control oilhole 2-8 opens gradually, going out machine oil in the oil pocket 2-4 enters by microscler oilhole 2-12 and circular groove 2-10 and regulation and control oilhole 2-8 and lacks circle oil pocket 2-7, promoting variable parts 4 moves down, gradually reduce the length of action of driven gear 4-2 and driving gear 3-3, realize the adjusting of oil drain quantity.
3, when engine speed continuation increase, the engine oil pressure difference that goes out oil pocket 2-4 and oil suction chamber 2-1 further strengthens, after exceeding certain value, going out machine oil in the oil pocket 2-4 will further promote plungers valve core 5-1 and move, regulate and control oilhole 2-8 and be opened this moment, and regulation and control plungers valve core 5-1 increases to the position that oil suction chamber 2-1 direction moves, and variable parts 4 are further moved down, the length of action of driven gear 4-2 and driving gear 3-3 is further reduced, reach the purpose that reduces oil drain quantity and oil pressure.
The microscler oilhole 2-12 that is provided with is to push the speed at motor, and regulation and control plungers valve core 5-1 can prolong supply time and fuel delivery in moving process, give full play to regulating and controlling effect and effect.
4, after the rotating speed of motor descends, because reducing pressure, oil drain quantity descends, regulation and control plungers valve core 5-1 just relies on the elastic force effect of regulation and control spring 5-3, will regulate and control plungers valve core 5-1 and progressively push back, and close the oil circuit of regulation and control oilhole 2-8 successively.After regulation and control plungers valve core 5-12 pushes back original position, regulation and control oilhole 2-8 and scarce circle oil pocket 2-7 conducting, the machine oil that lacks in the circle oil pocket 2-7 will be excreted to oil suction chamber 2-1 through plunger valve opening 2-9 along relief hole 2-13 from regulation and control oilhole 2-8, make the engine oil pressure of motor oil duct, can remain on certain level, guarantee the normal lubricated of motor.
Claims (1)
1. variable-displacement gear-type oil pump, it is characterized in that: it comprises pump cover, the pump housing, driving gear transmission part, driven gear variable parts, adjustment valve components and safety valve parts, and the pump cover and the pump housing link together by bolt;
The driving gear transmission part is made up of driving gear, driving shaft and driving gear, and driving shaft is installed in the axis hole of the pump housing and pump cover, and the outer end is connected with the driving gear interference, and the middle part is connected with the driving gear interference;
Driven gear variable parts are made up of driven shaft, driven gear, scarce smooth block, wholecircle slide block and spring, one end of driven shaft is connected with scarce smooth block interference, the middle part is connected movingly with driven gear, the other end is connected with the interference of wholecircle slide block, the above-mentioned part member that forms a whole, be installed in the driven gear hole and scarce smooth block hole in the pump housing, spring be installed in pump cover be provided with ventilation, with the corresponding spring eye of gear hole center line in, the free end of spring top is contained in the end face of wholecircle slide block step;
Driven gear on the driven gear variable parts and the mutual corresponding engagement of the driving gear on the driving gear transmission part, after driven gear and the engagement of driving gear full-depth tooth, the oil suction chamber on its right side, oil inlet hole and filler opening UNICOM, go out oil pocket, oil outlet and the oil outlet in left side communicate, and constitute the passage of turnover oil; Oil outlet is provided with first screw plug, and the pump housing is provided with second screw plug; The bottom in the scarce smooth block hole that lacks smooth block is installed, is provided with scarce circle oil pocket and regulation and control oilhole, lack round oil pocket and communicate with the regulation and control oilhole;
Adjustment valve components is made up of regulation and control plungers valve core, adjusting control valve spring and adjusting control valve plug screw, regulation and control plungers valve core and adjusting control valve spring are installed in the adjusting control valve valve opening on the pump housing by the adjusting control valve plug screw, regulation and control plungers valve core stage casing is provided with circular groove, the right-hand member of regulation and control plungers valve core has the cylinder step that is complementary with the adjusting control valve spring, the adjusting control valve valve opening respectively with go out oil pocket, oil suction chamber and lack the circle oil pocket to communicate; In adjusting control valve valve opening bottom, be provided with and oilhole and oil guiding hole at the bottom of the valve that oil road communicates, the adjusting control valve valve opening with go out the corresponding position of oil pocket and be provided with the microscler oilhole of often opening, with lack that the corresponding position of circle oil pocket is provided with can be for the regulation and control oilhole that opens and closes, be provided with the pressure release oilhole of normal open at corresponding position with oil suction chamber, the microscler oilhole that goes out oil pocket, adjusting control valve valve opening, normal open communicates with circular groove on the regulation and control plungers valve core;
The safety valve parts are made up of safety valve steel ball and safety valve spring, safety valve steel ball and safety valve spring are installed in the safe valve opening of the pump housing, by the spring socket on the pump cover safety valve spring, safety valve steel ball are fitted on the aperture of the safe valve opening that communicates with oil outlet simultaneously, the side of safe valve opening is provided with oil drainage hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105524289A CN101984279A (en) | 2010-11-13 | 2010-11-13 | Variable-displacement gear type oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105524289A CN101984279A (en) | 2010-11-13 | 2010-11-13 | Variable-displacement gear type oil pump |
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| Publication Number | Publication Date |
|---|---|
| CN101984279A true CN101984279A (en) | 2011-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105524289A Pending CN101984279A (en) | 2010-11-13 | 2010-11-13 | Variable-displacement gear type oil pump |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425719A (en) * | 2011-12-13 | 2012-04-25 | 湖南机油泵股份有限公司 | Novel gear type oil pump |
| CN102425718A (en) * | 2011-12-12 | 2012-04-25 | 湖南机油泵股份有限公司 | Variable displacement vane oil pump directly driven by crank shaft flat block |
| CN103353057A (en) * | 2013-07-15 | 2013-10-16 | 上海幸福摩托车有限公司 | Oil pump with variable discharge capacity |
| CN108119741A (en) * | 2016-11-30 | 2018-06-05 | 长城汽车股份有限公司 | Oil pump and vehicle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881368A (en) * | 2010-06-04 | 2010-11-10 | 湖南机油泵股份有限公司 | Variable-displacement gear-type oil pump |
-
2010
- 2010-11-13 CN CN2010105524289A patent/CN101984279A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881368A (en) * | 2010-06-04 | 2010-11-10 | 湖南机油泵股份有限公司 | Variable-displacement gear-type oil pump |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425718A (en) * | 2011-12-12 | 2012-04-25 | 湖南机油泵股份有限公司 | Variable displacement vane oil pump directly driven by crank shaft flat block |
| CN102425718B (en) * | 2011-12-12 | 2014-09-03 | 湖南机油泵股份有限公司 | Variable displacement vane oil pump directly driven by crank shaft flat block |
| CN102425719A (en) * | 2011-12-13 | 2012-04-25 | 湖南机油泵股份有限公司 | Novel gear type oil pump |
| CN103353057A (en) * | 2013-07-15 | 2013-10-16 | 上海幸福摩托车有限公司 | Oil pump with variable discharge capacity |
| CN108119741A (en) * | 2016-11-30 | 2018-06-05 | 长城汽车股份有限公司 | Oil pump and vehicle |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110309 |