CN104594968A - Combined type variable displacement oil pump - Google Patents
Combined type variable displacement oil pump Download PDFInfo
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- CN104594968A CN104594968A CN201510043530.9A CN201510043530A CN104594968A CN 104594968 A CN104594968 A CN 104594968A CN 201510043530 A CN201510043530 A CN 201510043530A CN 104594968 A CN104594968 A CN 104594968A
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Abstract
The invention discloses a combined type variable displacement oil pump. The combined type variable displacement oil pump comprises a fixed displacement mechanical pump (2), a motor drive pump (4), an electronic control unit (5) and a system oil path (3), wherein the fixed displacement mechanical pump (2) is connected with the motor drive pump (4) in parallel, certain ends of the fixed displacement mechanical pump (2) and the motor drive pump (4) are respectively connected with an oil tank (1), and the other ends of the fixed displacement mechanical pump (2) and the motor drive pump (4) are respectively communicated with the system oil path (3); the electronic control unit (5) is electrically connected and controls a motor of the motor drive pump (4) through feeding back with the system oil path (3). After the structure is adopted, the motor drive pump and the fixed displacement mechanical pump are connected in parallel to carry out hybrid oil supply on an engine system, the two pumps respectively supply oil or synchronously supply oil so as to meet the oil supply demands of engines having different flow requirements. Therefore, the combined type variable displacement oil pump takes the place of a variable displacement oil pump controlled by a valve, and is low in cost and more energy-saving.
Description
Technical field
The present invention relates to the technical field of oil pump, is specifically a kind of Combined changable displacement oil pump.
Background technique
Operationally, each moving parts is all used on another part with certain masterpiece motor car engine, and relative movement at a high speed occurs, and had relative movement, part surface must produce friction, thus accelerated wear test.Therefore, in order to alleviate wearing and tearing, reducing frictional resistance, increasing the service life, motor all must have on lubricating system components.The various equipment such as the organic oil pump of critical piece of lubrication system, the effect of oil pump is after machine oil is brought up to certain pressure, be sent on the moving surface of each part of motor forcibly, it generally comprises pump cover and the pump housing, connect with screw between pump cover and the pump housing, in the pump housing, be provided with internal rotor, external rotor, low pressure oil pocket and high-voltage oil cavity.
At present, during oil pump work, institute exports the flow of lubricant oil, be need according to engine lubrication and set can not the oil pump of variable, the rotating speed of flow of lubrication and motor is proportional transitive relation, that is, the rotating speed of motor is larger, and the flow of lubricant oil is larger.But, there is the pressure loss of the part such as oil filter and module in the engine oil pressure due to main oil gallery, it is higher that the engine oil pressure of main oil gallery is arranged usually, and under the prerequisite of low temperature, low-speed performance, high pressure oil certainly will cause the driving torque of motor to increase, thus the problem causing power dissipation serious.Therefore, there is a kind of variable-displacement oil pump at present.As " displacement-variable oil pump " application for a patent for invention that publication number disclosed on State Intellectual Property Office website is CN103775811A, it comprises the inner chamber body being arranged at pump body, stator is provided with in inner chamber body, the rotor be connected with the bent axle started and stator is applied to the elastic element of pre-rotational resistance, stator and rotor eccentricity are arranged, rotor is fixed with multiple blade, multiple blade is by rotor, space between stator is separated into multiple cavity volume, cavity volume comprises maximum volume chamber and minimum volume chamber, the first control room be communicated with the first oil circuit is provided with between stator and the madial wall of inner chamber body, the second control room is provided with between stator and the madial wall of inner chamber body, first oil circuit and the second oil circuit are linked together by selector valve, selector valve for control the second control room and the first control room be communicated with or the second control room is communicated with oil sump.
But there is following problem in the displacement-variable oil pump of said structure:
1) because selector valve is controlled by the CPU of motor, when the continuous switch operation of selector valve, the CPU of motor constantly sends signal to selector valve, therefore, motor CPU is very high to the control frequency of selector valve, thus shorten the working life of valve, then affect the use of pump, too increase cost simultaneously;
2) simultaneously, relate to various electronic component in displacement-variable oil pump, as pressure transducer etc., the setting of these electronic components, adds the cost of oil pump;
3) motor is when ignition trigger, to need the time demarcated, and this is vehicle performance in order to obtain best satisfaction and is up to state standards, but this time demarcated is often longer, thus increases the starting time of vehicle when starting.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of traffic demand that can meet low temperature low speed, also can meet traffic demand at a high speed, and the Combined changable displacement oil pump that cost is low.
For solving the problems of the technologies described above, Combined changable displacement oil pump provided by the invention, it comprises a fixed displacement mechanical pump and Electric-motor driven pumps, electronic control unit and a system oil-way, described fixed displacement mechanical pump and Electric-motor driven pumps are connected in parallel, and moreover one end be all communicated with fuel tank, the other end is all communicated with system oil-way; Described electronic control unit is by being electrically connected with the motor of feedback to Electric-motor driven pumps of system oil-way and controlling.
The control of described system oil-way to electronic control unit comprises the load feedback, temperature feedback and the pressure feedback that arrange separately.
Described independent setting refers to, load feedback, temperature feedback and pressure feedback are set up in parallel, and one end of three is all communicated with the system oil-way after Electric-motor driven pumps and the parallel connection of fixed displacement mechanical pump.
System oil-way after described Electric-motor driven pumps and the parallel connection of fixed displacement mechanical pump is provided with throttle valve, before this throttle valve is positioned at three feedback points.
After adopting above structure, the present invention compared with prior art, has following advantage:
1) owing to carrying out mixing feed by the connection of Electric-motor driven pumps and the parallel connection of fixed displacement mechanical pump to engine system oil circuit, two pumps are fuel feeding or fuel feeding simultaneously separately, to meet the engine oil demand of different flow demand, therefore, instead of the displacement-variable oil pump controlled by valve, cost is low, and more energy-conservation;
2) eliminate some electronic components, virtually reduce cost of production;
3) electronic control unit is by pressure feedback, load feedback and temperature feedback, after collecting feedback information, when small flow demand, only need open the Electric-motor driven pumps of small displacement, according to the different operating mode in system oil-way, select singly to open Electric-motor driven pumps, singly open fixed displacement mechanical pump or open Electric-motor driven pumps and fixed displacement mechanical pump simultaneously, therefore, without the need to demarcating motor, realize omnidistance controlled object.
Accompanying drawing explanation
Fig. 1 is the principle schematic of Combined changable displacement oil pump of the present invention.
Wherein, 1, fuel tank; 2, quantitative mechanical pump; 3, system oil-way; 4, Electric-motor driven pumps; 5, electronic control unit; 6, throttle valve; 7, pressure feedback; 8, load feedback; 9, temperature feedback.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in more detail.
The principle schematic of Combined changable displacement oil pump of the present invention is as shown in Figure 1 known, it comprises a fixed displacement mechanical pump 2 and Electric-motor driven pumps 4, electronic control unit 5 and a system oil-way 3, described fixed displacement mechanical pump 2 and Electric-motor driven pumps 4 are connected in parallel, and moreover one end be all communicated with fuel tank 1, the other end is all communicated with system oil-way 3.Described electronic control unit 5 is by being electrically connected with the motor of feedback to Electric-motor driven pumps 4 of system oil-way 3 and controlling.
The control of described system oil-way 3 pairs of electronic control units 5 comprises the pressure feedback 7, load feedback 8 and the temperature feedback 9 that arrange separately.
Described independent setting refers to, pressure feedback 7, load feedback 8 and temperature feedback 9 are set up in parallel, and one end of three is all communicated with the system oil-way 3 after Electric-motor driven pumps 4 and fixed displacement mechanical pump 2 parallel connection.
System oil-way 3 after described Electric-motor driven pumps 4 and fixed displacement mechanical pump 2 parallel connection is provided with throttle valve 6, before this throttle valve 6 is positioned at three feedback points.
Working principle of the present invention is: when starting under the working environment of vehicle at low temperature, after electronic control unit 5 monitors feedback, the Electric-motor driven pumps 4 ordering about small displacement is started working, and now fixed displacement mechanical pump 2 does not work; The feedback of the pressure in along with working procedure in system oil-way 3, load and temperature, electronic control unit 5 controls the open and close of Electric-motor driven pumps 4, now, according to the operating mode of reality, coordinate the work of fixed displacement mechanical pump 2, that is, two pumps can work separately separately, also can joint work, carry out fuel feeding to motor, meet the engine oil demand of different flow demand, energy-conservation efficient again.
Claims (4)
1. a Combined changable displacement oil pump, it is characterized in that: it comprises a fixed displacement mechanical pump (2) and Electric-motor driven pumps (4), electronic control unit (5) and a system oil-way (3), described fixed displacement mechanical pump (2) and Electric-motor driven pumps (4) are connected in parallel, and moreover one end be all communicated with fuel tank (1), the other end is all communicated with system oil-way (3); Described electronic control unit (5) is by being electrically connected with the motor of feedback to Electric-motor driven pumps (4) of system oil-way (3) and controlling.
2. Combined changable displacement oil pump according to claim 1, is characterized in that: the described control of system oil-way (3) to electronic control unit (5) comprises the pressure feedback (7), load feedback (8) and the temperature feedback (9) that arrange separately.
3. Combined changable displacement oil pump according to claim 2, it is characterized in that: described independent setting refers to, pressure feedback (7), load feedback (8) and temperature feedback (9) are set up in parallel, and one end of three is all communicated with the system oil-way (3) after Electric-motor driven pumps (4) and fixed displacement mechanical pump (2) parallel connection.
4. Combined changable displacement oil pump according to claim 3, it is characterized in that: the system oil-way (3) after described Electric-motor driven pumps (4) and fixed displacement mechanical pump (2) parallel connection is provided with throttle valve (6), before this throttle valve (6) is positioned at three feedback points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510043530.9A CN104594968A (en) | 2015-01-28 | 2015-01-28 | Combined type variable displacement oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510043530.9A CN104594968A (en) | 2015-01-28 | 2015-01-28 | Combined type variable displacement oil pump |
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| Publication Number | Publication Date |
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| CN104594968A true CN104594968A (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510043530.9A Pending CN104594968A (en) | 2015-01-28 | 2015-01-28 | Combined type variable displacement oil pump |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114145A (en) * | 2015-08-13 | 2015-12-02 | 奇瑞汽车股份有限公司 | Engine oil supply device |
| CN109026259A (en) * | 2018-09-27 | 2018-12-18 | 潍柴动力股份有限公司 | A kind of engine lubrication system and its control method |
| CN110486115A (en) * | 2017-08-29 | 2019-11-22 | 熵零技术逻辑工程院集团股份有限公司 | A kind of engine actively becomes discharge capacity oil supply system |
| CN113202593A (en) * | 2021-05-28 | 2021-08-03 | 北京理工大学 | Flow-adjustable engine oil pump system of engine |
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| CN201100153Y (en) * | 2007-10-25 | 2008-08-13 | 韩良智 | Parallel pre-lubrication device for engine |
| CN201106462Y (en) * | 2007-04-18 | 2008-08-27 | 施松柏 | Auxiliary lubrication system of engine |
| CN201241742Y (en) * | 2008-08-07 | 2009-05-20 | 习勇奎 | Startup, operating and shutdown constant pressure lubricating protection device of engine |
| EP2159472A1 (en) * | 2008-08-27 | 2010-03-03 | General Electric Company | A fluidic system, a drive train for a wind turbine and a method for actuating a mechanical component |
| CN201723268U (en) * | 2010-03-31 | 2011-01-26 | 浙江科技学院 | Oil supply system for engine |
| CN204492918U (en) * | 2015-01-28 | 2015-07-22 | 宁波圣龙汽车动力系统股份有限公司 | Combined changable displacement oil pump |
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2015
- 2015-01-28 CN CN201510043530.9A patent/CN104594968A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201106462Y (en) * | 2007-04-18 | 2008-08-27 | 施松柏 | Auxiliary lubrication system of engine |
| CN201100153Y (en) * | 2007-10-25 | 2008-08-13 | 韩良智 | Parallel pre-lubrication device for engine |
| CN201241742Y (en) * | 2008-08-07 | 2009-05-20 | 习勇奎 | Startup, operating and shutdown constant pressure lubricating protection device of engine |
| EP2159472A1 (en) * | 2008-08-27 | 2010-03-03 | General Electric Company | A fluidic system, a drive train for a wind turbine and a method for actuating a mechanical component |
| CN201723268U (en) * | 2010-03-31 | 2011-01-26 | 浙江科技学院 | Oil supply system for engine |
| CN204492918U (en) * | 2015-01-28 | 2015-07-22 | 宁波圣龙汽车动力系统股份有限公司 | Combined changable displacement oil pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114145A (en) * | 2015-08-13 | 2015-12-02 | 奇瑞汽车股份有限公司 | Engine oil supply device |
| CN110486115A (en) * | 2017-08-29 | 2019-11-22 | 熵零技术逻辑工程院集团股份有限公司 | A kind of engine actively becomes discharge capacity oil supply system |
| CN109026259A (en) * | 2018-09-27 | 2018-12-18 | 潍柴动力股份有限公司 | A kind of engine lubrication system and its control method |
| CN113202593A (en) * | 2021-05-28 | 2021-08-03 | 北京理工大学 | Flow-adjustable engine oil pump system of engine |
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Application publication date: 20150506 |