CN104632483A - Direct injection gasoline engine oil supply system, gasoline engine and automobile - Google Patents
Direct injection gasoline engine oil supply system, gasoline engine and automobile Download PDFInfo
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- CN104632483A CN104632483A CN201410824177.3A CN201410824177A CN104632483A CN 104632483 A CN104632483 A CN 104632483A CN 201410824177 A CN201410824177 A CN 201410824177A CN 104632483 A CN104632483 A CN 104632483A
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- gasoline engine
- supply system
- solenoid valve
- oil supply
- pump
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- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The invention provides a direct injection gasoline engine oil supply system, a gasoline engine and an automobile. The direct injection gasoline engine oil supply system comprises a fuel tank, a fuel filter, a two-position two-way solenoid valve, an electric control fuel pump, a high-pressure oil pump, an oil injector assembly, a rotating speed sensor and an electric control unit, wherein the outlet end of the fuel filter is connected with the inlet end of the two-position two-way solenoid valve, one outlet of the two-position two-way solenoid valve is connected with the inlet end of the electric control fuel pump, and the other outlet of the two-position two-way solenoid valve is connected with the inlet end of the high-pressure oil pump; the outlet end of the electric control fuel pump and the outlet end of the high-pressure oil pump are both connected with the inlet end of the oil injector assembly; the rotating speed sensor is connected with the signal input end of the electric control unit, and the signal output end of the electric control unit is connected with an executive component of the two-position two-way solenoid valve and an executive component of the electric control fuel pump. The direct injection gasoline engine oil supply system solves the problem that a high-pressure oil pump is high in noise when an engine is on a low-speed running condition, and meanwhile the requirement of the engine on a high-speed running condition for fuel injection pressure is met.
Description
Technical field
The present invention relates to technical field of engines, particularly a kind of can reduce vehicle noise specification under engine start, idling and speed operation directly jetting gasoline engine oil supply system and petrol engine and automobile.
Background technique
Along with the raising of auto manufacturing technology level, Consumer focuses on the combination property of vehicle more, correspondingly automobile production enterprise is to product power performance, the requirement of economic performance and riding comfort is also more and more higher, such as vehicle noise problem, regarding businesses standard not only proposes strict demand to car indoor and outdoor noise in high vehicle speeds process, and clearly quantized motor in startup, noise specification under idling and speed operation, namely under normal circumstances, for the vehicle of configuration directly jetting gasoline engine, engine start, under idling and speed operation, noise specification must not be greater than 75 decibels.
For meeting the requirement of directly jetting gasoline engine to fuel-injection pressure, current vehicle-mounted directly jetting gasoline engine oil supply system is equipped with mechanical high-voltage oil pump, therefore, under engine start, idling and speed operation, mechanical high-voltage operation of oil pump noise becomes the principal element affecting car load NVH performance.In order to optimize noise specification under engine start, idling and speed operation, a kind of method is the vibrating noise utilizing engine noise reduction module to produce to control mechanical type high pressure oil pump, by reducing oil pump solenoid valve firing current, reduce the impact force of opening process, when oil pump closed electromagnetic valve, increase is counter pushes away electric current, reduce valve land noise, although this noise reduction mode can reduce the vibrating noise of high pressure oil pump in theory, but effect is very limited in actual applications, be difficult to meet the requirement of car load to NVH performance; Another kind method is that the housing of high pressure oil pump adopts special sound absorbing material, but this noise reduction mode can cause the raising of high-pressure oil pump of engine cost of production simultaneously, and the cycle of advanced development and input batch production will extend, and have impact on the progress of motor new product development.
Summary of the invention
In view of this, the present invention is intended to propose a kind of directly jetting gasoline engine oil supply system, to reduce the noise specification of directly jetting gasoline engine under engine start, idling and speed operation, meet the requirement of directly jetting gasoline engine to fuel-injection pressure simultaneously, improve the combination property of vehicle.
For achieving the above object, technological scheme of the present invention is achieved in that
A kind of directly jetting gasoline engine oil supply system, comprises fuel tank, fuel filter, two-position two-way solenoid valve, electronic controlled fuel pump, high pressure oil pump, injector assembly, speed probe and ECU (Electrical Control Unit); The entrance point of described fuel filter is communicated with described fuel tank, and outlet end is connected with described two-position two-way solenoid valve entrance point, and an outlet of described two-position two-way solenoid valve is connected with electronic controlled fuel pump inlet end, and another outlet is connected with high pressure oil pump entrance point; The outlet end of described electronic controlled fuel pump and high pressure oil pump is all connected with injector assembly entrance point; Described speed probe is for monitoring petrol engine rotational speed information, and described speed probe is connected with described ECU (Electrical Control Unit) signal input part, and described ECU (Electrical Control Unit) signal output part is connected with the executive component of two-position two-way solenoid valve and electronic controlled fuel pump respectively.
Further, described ECU (Electrical Control Unit) is the control module be integrated in Engine ECU.
Further, when described speed probe monitors petrol engine rotational speed≤1200 rev/min, described ECU (Electrical Control Unit) controls described two-position two-way solenoid valve and opens the outlet be connected with electronic controlled fuel pump, by electronic controlled fuel pump to described injector assembly fuel feeding.
Further, when described speed probe monitors petrol engine rotational speed > 1200 revs/min, described ECU (Electrical Control Unit) controls described two-position two-way solenoid valve and opens the outlet be connected with high pressure oil pump, by high pressure oil pump to described injector assembly fuel feeding.
Further, described high pressure oil pump is mechanical high-voltage oil pump.
Relative to prior art, directly jetting gasoline engine oil supply system of the present invention has following advantage:
Directly jetting gasoline engine oil supply system of the present invention has been arranged in parallel electronic controlled fuel pump and high pressure oil pump, when petrol engine rotational speed≤1200 rev/min, by electronic controlled fuel pump to injector assembly fuel feeding; As petrol engine rotational speed > 1200 revs/min, by high pressure oil pump to injector assembly fuel feeding.As can be seen here, directly jetting gasoline engine oil supply system of the present invention solves the existing directly jetting gasoline engine problem that mechanical high-voltage operation of oil pump noise is large under low-speed running operating mode, meet the requirement to fuel-injection pressure under high engine speeds Operation Conditions simultaneously, thus improve the combination property of vehicle.Experiment results proved: adopt directly jetting gasoline engine oil supply system of the present invention, directly jetting gasoline engine noise specification under startup, idling and speed operation is reduced to 73 decibels by original 81 decibels, meets the requirement of regarding businesses standard to vehicle noise specification under engine start, idling and speed operation.
Another object of the present invention is to propose a kind of petrol engine, to improve power performance and the NVH characteristic of directly jetting gasoline engine.
For achieving the above object, technological scheme of the present invention is achieved in that
A kind of petrol engine, is equipped with above-mentioned directly jetting gasoline engine oil supply system.
The Dominant Facies that described petrol engine and above-mentioned directly jetting gasoline engine oil supply system have relative to prior art is same, does not repeat them here.
Of the present invention also have an object to be propose a kind of automobile, with the power performance of lifting vehicle and NVH characteristic.
For achieving the above object, technological scheme of the present invention is achieved in that
A kind of automobile, is equipped with above-mentioned petrol engine.
The Dominant Facies that described automobile and above-mentioned directly jetting gasoline engine oil supply system have relative to prior art is same, does not repeat them here.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the directly jetting gasoline engine oil supply system schematic diagram described in the embodiment of the present invention;
Fig. 2 is the electronic controlled fuel pump work view under petrol engine low-speed running operating mode of the directly jetting gasoline engine oil supply system described in the embodiment of the present invention;
Fig. 3 is the high pressure oil pump working state schematic representation under petrol engine runs up operating mode of the directly jetting gasoline engine oil supply system described in the embodiment of the present invention.
Description of reference numerals:
1, fuel tank, 2, fuel filter, 3, two-position two-way solenoid valve, 4, electronic controlled fuel pump, 5, high pressure oil pump, 6, injector assembly, 7, speed probe, 8, ECU (Electrical Control Unit).
Embodiment
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Referring to Fig. 1, the directly jetting gasoline engine oil supply system described in the embodiment of the present invention comprises fuel tank 1, fuel filter 2, two-position two-way solenoid valve 3, electronic controlled fuel pump 4, high pressure oil pump 5, injector assembly 6, speed probe 7 and ECU (Electrical Control Unit) 8; The entrance point of described fuel filter 2 is communicated with described fuel tank 1, outlet end is connected with the entrance point of described two-position two-way solenoid valve 3, an outlet of described two-position two-way solenoid valve 3 is connected with described electronic controlled fuel pump 4 entrance point, and another outlet is connected with described high pressure oil pump 5 entrance point; The outlet end of described electronic controlled fuel pump 4 and high pressure oil pump 5 is all connected with injector assembly 6 entrance point; Described high pressure oil pump 5 is mechanical high-voltage oil pump; Described speed probe 7 is for monitoring the rotary speed information of petrol engine, described speed probe 7 is connected with the signal input part of described ECU (Electrical Control Unit) 8, described ECU (Electrical Control Unit) 8 is for being integrated in the control module in Engine ECU, and its signal output part is connected with the executive component of described two-position two-way solenoid valve 3 and electronic controlled fuel pump 4 respectively.
Referring to Fig. 2, directly jetting gasoline engine oil supply system described in the embodiment of the present invention, when speed probe 7 monitors petrol engine rotational speed≤1200 rev/min, described ECU (Electrical Control Unit) 8 controls described two-position two-way solenoid valve 3 and opens the outlet be connected with described electronic controlled fuel pump 4, by described electronic controlled fuel pump 4 to described injector assembly 6 fuel feeding.
Referring to Fig. 3, directly jetting gasoline engine oil supply system described in the embodiment of the present invention, when speed probe 7 monitors petrol engine rotational speed > 1200 revs/min, described ECU (Electrical Control Unit) 8 controls described two-position two-way solenoid valve 3 and opens the outlet be connected with described high pressure oil pump 5, by described high pressure oil pump 5 to described injector assembly fuel feeding.Directly jetting gasoline engine oil supply system described in the embodiment of the present invention solves the existing directly jetting gasoline engine problem that mechanical high-voltage operation of oil pump noise is large under low-speed running operating mode, meet the requirement to fuel-injection pressure under high engine speeds Operation Conditions simultaneously, thus improve the combination property of vehicle.Experiment results proved: adopt directly jetting gasoline engine oil supply system of the present invention, directly jetting gasoline engine noise specification under startup, idling and speed operation is reduced to 73 decibels by original 81 decibels, meets the requirement of regarding businesses standard to vehicle noise specification under engine start, idling and speed operation.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a directly jetting gasoline engine oil supply system, it is characterized in that, described directly jetting gasoline engine oil supply system comprises fuel tank (1), fuel filter (2), two-position two-way solenoid valve (3), electronic controlled fuel pump (4), high pressure oil pump (5), injector assembly (6), speed probe (7) and ECU (Electrical Control Unit) (8); The entrance point of described fuel filter (2) is communicated with described fuel tank (1), outlet end is connected with the entrance point of described two-position two-way solenoid valve (3), an outlet of described two-position two-way solenoid valve (3) is connected with described electronic controlled fuel pump (4) entrance point, and another outlet is connected with described high pressure oil pump (5) entrance point; The outlet end of described electronic controlled fuel pump (4) and high pressure oil pump (5) is all connected with injector assembly (6) entrance point; Described speed probe (7) is for monitoring the rotary speed information of petrol engine, described speed probe (7) is connected with the signal input part of described ECU (Electrical Control Unit) (8), and the signal output part of described ECU (Electrical Control Unit) (8) is connected with the executive component of described two-position two-way solenoid valve (3) and electronic controlled fuel pump (4) respectively.
2. directly jetting gasoline engine oil supply system according to claim 1, is characterized in that, described ECU (Electrical Control Unit) (8) is for being integrated in the control module in Engine ECU.
3. directly jetting gasoline engine oil supply system according to claim 1 and 2, it is characterized in that, when described speed probe (7) monitors petrol engine rotational speed≤1200 rev/min, described ECU (Electrical Control Unit) (8) controls described two-position two-way solenoid valve (3) and opens the outlet be connected with described electronic controlled fuel pump (4), by described electronic controlled fuel pump (4) to described injector assembly (6) fuel feeding.
4. directly jetting gasoline engine oil supply system according to claim 1 and 2, it is characterized in that, when described speed probe (7) monitors petrol engine rotational speed > 1200 revs/min, described ECU (Electrical Control Unit) (8) controls described two-position two-way solenoid valve (3) and opens the outlet be connected with described high pressure oil pump (5), by described high pressure oil pump (5) to described injector assembly (6) fuel feeding.
5. directly jetting gasoline engine oil supply system according to claim 1 and 2, is characterized in that, described high pressure oil pump (5) is mechanical high-voltage oil pump.
6. a petrol engine, is characterized in that, described petrol engine is equipped with the directly jetting gasoline engine oil supply system according to any one of claim 1 to 5.
7. an automobile, is characterized in that, described automobile is equipped with petrol engine as claimed in claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410824177.3A CN104632483A (en) | 2014-12-26 | 2014-12-26 | Direct injection gasoline engine oil supply system, gasoline engine and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410824177.3A CN104632483A (en) | 2014-12-26 | 2014-12-26 | Direct injection gasoline engine oil supply system, gasoline engine and automobile |
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| Publication Number | Publication Date |
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| CN104632483A true CN104632483A (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410824177.3A Pending CN104632483A (en) | 2014-12-26 | 2014-12-26 | Direct injection gasoline engine oil supply system, gasoline engine and automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402060A (en) * | 2015-11-23 | 2016-03-16 | 沈阳黎明航空发动机(集团)有限责任公司 | Oil supply device and method for frequency conversion and speed control of fuel pump for fuel machine |
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| US6058912A (en) * | 1995-05-26 | 2000-05-09 | Robert Bosch Gmbh | Fuel supply system and method for operating an internal combustion engine |
| DE10141038A1 (en) * | 2001-08-22 | 2003-03-20 | Ktm Sportmotorcycle Ag Mattigh | Fuel supply system for kick-start motor bike, has low pressure electrical pump for starting and high pressure mechanical pump for running |
| CN102012315A (en) * | 2009-09-04 | 2011-04-13 | 南通恒帅机电设备有限公司 | Device for measuring residue in fuel oil pipe of compression ignition engine |
| CN102374043A (en) * | 2010-08-24 | 2012-03-14 | 福特环球技术公司 | Fuel system for a multi-fuel engine |
| CN203702413U (en) * | 2014-01-20 | 2014-07-09 | 博世汽车柴油系统有限公司 | Fuel pump |
| CN104395595A (en) * | 2012-07-05 | 2015-03-04 | 联合工艺公司 | Fuel preheating using electric pump |
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2014
- 2014-12-26 CN CN201410824177.3A patent/CN104632483A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6058912A (en) * | 1995-05-26 | 2000-05-09 | Robert Bosch Gmbh | Fuel supply system and method for operating an internal combustion engine |
| DE10141038A1 (en) * | 2001-08-22 | 2003-03-20 | Ktm Sportmotorcycle Ag Mattigh | Fuel supply system for kick-start motor bike, has low pressure electrical pump for starting and high pressure mechanical pump for running |
| CN102012315A (en) * | 2009-09-04 | 2011-04-13 | 南通恒帅机电设备有限公司 | Device for measuring residue in fuel oil pipe of compression ignition engine |
| CN102374043A (en) * | 2010-08-24 | 2012-03-14 | 福特环球技术公司 | Fuel system for a multi-fuel engine |
| CN104395595A (en) * | 2012-07-05 | 2015-03-04 | 联合工艺公司 | Fuel preheating using electric pump |
| CN203702413U (en) * | 2014-01-20 | 2014-07-09 | 博世汽车柴油系统有限公司 | Fuel pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402060A (en) * | 2015-11-23 | 2016-03-16 | 沈阳黎明航空发动机(集团)有限责任公司 | Oil supply device and method for frequency conversion and speed control of fuel pump for fuel machine |
| CN105402060B (en) * | 2015-11-23 | 2018-02-23 | 沈阳黎明航空发动机(集团)有限责任公司 | The fueller and fuel supply method of a kind of combustion engine fuel pump variable frequency regulating speed control |
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Application publication date: 20150520 |
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