CN108894901A - A kind of gasoline single cylinder engine high pressure oil supply device - Google Patents
A kind of gasoline single cylinder engine high pressure oil supply device Download PDFInfo
- Publication number
- CN108894901A CN108894901A CN201810723928.0A CN201810723928A CN108894901A CN 108894901 A CN108894901 A CN 108894901A CN 201810723928 A CN201810723928 A CN 201810723928A CN 108894901 A CN108894901 A CN 108894901A
- Authority
- CN
- China
- Prior art keywords
- pressure oil
- fuel injector
- fuel
- rail
- high pressure
- 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
Links
- 239000003502 gasoline Substances 0.000 title claims abstract description 16
- 239000000446 fuel Substances 0.000 claims abstract description 59
- 239000002828 fuel tank Substances 0.000 claims abstract description 16
- 230000008878 coupling Effects 0.000 claims abstract description 9
- 238000010168 coupling process Methods 0.000 claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 claims abstract description 9
- 239000003921 oil Substances 0.000 abstract description 65
- 239000000295 fuel oil Substances 0.000 abstract description 11
- 238000002347 injection Methods 0.000 description 13
- 239000007924 injection Substances 0.000 description 13
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 230000033772 system development Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
- F02M63/0275—Arrangement of common rails
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The present invention relates to a kind of gasoline single cylinder engine high pressure oil supply devices, including fuel tank, high-pressure oil pump, stepper motor, shaft coupling, high pressure oil rail, first fuel injector, second fuel injector, engine and electronic control unit, fuel tank is connected to high-pressure oil pump, the high-pressure oil pump is connect by shaft coupling with stepper motor, frequency converter is connected on stepper motor, the output end of the high-pressure oil pump is connected to the input terminal of high pressure oil rail, the output end of high pressure oil rail is connected with the first fuel injector and the second fuel injector, first fuel injector is connected to mailbox, second fuel injector is connected to engine, the electronic control unit and high-pressure oil pump, frequency converter, high pressure oil rail, first fuel injector and the control connection of the second fuel injector.The present invention can realize that pressure quickly raises and reduces in rail in the nonexpendable situation of fuel oil, meet the needs of optics and thermodynamics single cylinder engine are to different rail pressures, different distributive values, provide the fuel oil that pressure reaches 600bar for high pressure co-rail system.
Description
Technical field
The invention belongs to high pressure direct injection technical field of engines, and in particular to a kind of gasoline single cylinder engine high pressure oil supply device.
Background technique
The ownership of automobile continues to increase, and engine is still the major impetus source of automobile power.But with country
Requirement to oil consumption and emission regulation is further stringent, reduces engine emission, improves its fuel economy as current internal combustion engine
The task of top priority of worker.Gasoline engine direct injection technology by direct injection of the fuel oil in cylinder, flexibility and changeability oil injection time and
Oil spout number can greatly improve engine performance, reduce discharge.For fuel injector, injection pressure is bigger, and fuel oil is from spray
Oily device ejects more acutely broken, and the atomized particle size of formation is smaller, and atomizing effect is also better, improves engine combustion
The dynamic property of burning, economy, spatter property.
Currently, the peak injection pressure of market gasoline feeder product is 350bar, the major vehicle in the world and auto parts and components
Exploitation commercial city is in the product for strongly developing bigger injection pressure.Gasoline single cylinder engine system is gasoline engine combustion system development process
The injection pressure of the first step, use must be higher than existing Product Level, can just develop better gasoline engine combustion in this way
Burning system.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of gasoline single cylinder engine high pressure oil supply device, it is therefore intended that pass through stepping electricity
Machine drives high-pressure oil pump, provides the fuel oil that pressure reaches 600bar for high pressure co-rail system.
The purpose of the present invention is achieved through the following technical solutions：
A kind of gasoline single cylinder engine high pressure oil supply device, including fuel tank 1, high-pressure oil pump 3, stepper motor 4, shaft coupling 6, high pressure
Oily rail 7, the first fuel injector 81, the second fuel injector 82, engine 9 and electronic control unit 10, the fuel tank 1 and high-pressure oil pump 3 connect
Logical, the high-pressure oil pump 3 is connect by shaft coupling 6 with stepper motor 4, and frequency converter 5 is connected on stepper motor 4, described
The output end of high-pressure oil pump 3 is connected to the input terminal of high pressure oil rail 7, and the output end of high pressure oil rail 7 is connected with the first fuel injector 81
With the second fuel injector 82, first fuel injector 81 is connected to fuel tank 1, and the second fuel injector 82 is connected to engine 9, described
Electronic control unit and high-pressure oil pump 3, frequency converter 5, high pressure oil rail 7, the first fuel injector 81 and the control of the second fuel injector 82 connect.
As more preferably technical solution of the invention：Fuel filter 2 is provided between the fuel tank 1 and high-pressure oil pump 3.
It has the beneficial effect that：
High-pressure common rail of the invention connects two fuel injectors, and one of fuel injector is mounted on single-cylinder engine, is it
Fuel is provided, another fuel injector is connected by low-pressure oil return pipe with fuel tank, the fortune as pressure release and oil return apparatus, with engine
Row revolving speed and load decoupling, can realize that pressure quickly raises and reduces in rail in the nonexpendable situation of fuel oil, meet optics and
Demand of the thermodynamics single cylinder engine to different rail pressures, different distributive values.The present invention according to the injection pressure demand in engine test,
Stepper motor revolving speed is adjusted by frequency converter, while controlling high-pressure oil pump, the fuel feeding system as high pressure oil rail using electronic control unit
System, by adjusting the injection pressure of oil return fuel injector, the accurate recirculating oil quantity for controlling high pressure oil rail, to establish in high pressure oil rail
Goal pressure, the fuel oil of goal pressure and the revolving speed of engine and load decoupling are played, and is ejected into and is started by work fuel injector
In machine.
Detailed description of the invention
Fig. 1 is the schematic diagram of gasoline single cylinder engine high pressure oil supply device of the invention；
Fig. 2 is the control system block diagram of gasoline single cylinder engine high pressure oil supply device of the invention.
Specific embodiment
The embodiment of the invention will now be described in detail with reference to the accompanying drawings.
As illustrated in fig. 1 and 2, the present invention provides a kind of gasoline single cylinder engine high pressure oil supply device, including fuel tank 1, high-pressure oil pump
3, stepper motor 4, shaft coupling 6, high pressure oil rail 7, the first fuel injector 81, the second fuel injector 82, engine 9 and electronic control unit 10,
The fuel tank 1 is connected to high-pressure oil pump 3, and the high-pressure oil pump 3 is connect by shaft coupling 6 with stepper motor 4, stepper motor
Frequency converter 5 is connected on 4, the output end of the high-pressure oil pump 3 is connected to the input terminal of high pressure oil rail 7, high pressure oil rail 7 it is defeated
Outlet is connected with the first fuel injector 81 and the second fuel injector 82, and first fuel injector 81 is connected to fuel tank 1, the second fuel injector
82 are connected to engine 9, the electronic control unit and high-pressure oil pump 3, frequency converter 5, high pressure oil rail 7, the first fuel injector 81 and the
The control connection of two fuel injectors 82.Fuel injector 81 is increased on high pressure oil rail 7, and fuel injector 81 is made to be connected with fuel tank 1, makes high pressure
Oily rail 7 is provided with pressure release oil return apparatus, and the revolving speed and load of the fuel pressure inside high pressure oil rail 7 and engine 9 decouple, and passes through
The fuel pressure in the injection pressure realization high pressure oil rail of stepper motor revolving speed, fuel injector 81 is adjusted to setting value.The oil
Fuel filter 2 is provided between case 1 and high-pressure oil pump 3.
The course of work of the invention is as follows：
Fuel oil in fuel tank 1 flows into high-pressure oil pump 3, the oil circuit output end and high pressure of high-pressure oil pump 3 by fuel filter 2
Oily rail 7 is connected, and is coupled between stepper motor 4 and high-pressure oil pump 3 by shaft coupling 6, provides power resources for high-pressure oil pump 3.Step
Revolving speed is adjusted by frequency converter 5 into motor 4, to adjust the output pressure of high-pressure oil pump 3.The output end of high pressure oil rail 7 and oil spout
Device 81 is connected with fuel injector 82, and wherein fuel injector 81 is connected with fuel tank 1, and fuel injector 82 is mounted on engine 9.When engine 9
Injection pressure when needing to change, 4 revolving speed of stepper motor is adjusted by frequency converter 5, to adjust the output pressure of high-pressure oil pump 3
Power, while the injection pressure of fuel injector 81 is adjusted, so that the fuel pressure in high pressure oil rail 7 be made to be rapidly achieved target value.At this
During a, the fuel oil that fuel injector 81 sprays has been returned in fuel tank 1, avoids the waste of fuel oil.In the process, automatically controlled list
Member 10 controls the nozzle parameter of fuel injector 81 and fuel injector 82, while monitoring the fuel pressure in high pressure oil rail 7, is become by adjusting
The output pressure of the control high-pressure oil pump 3 of frequency device 5.By experiment test the technical scheme is that high pressure co-rail system provides pressure
Power reaches the fuel oil of 600bar.
Claims (2)
1. a kind of gasoline single cylinder engine high pressure oil supply device, including fuel tank (1), high-pressure oil pump (3), stepper motor (4), shaft coupling
(6), high pressure oil rail (7), the first fuel injector (8) (1), the second fuel injector (8) (2), engine (9) and electronic control unit (1) (0),
The mailbox (1) is connected to high-pressure oil pump (3), and the high-pressure oil pump (3) is connected by shaft coupling (6) and stepper motor (4)
It connects, is connected on stepper motor (4) frequency converter (5), the output end of the high-pressure oil pump (3) and the input of high pressure oil rail (7)
End connection, it is characterised in that：The output end of high pressure oil rail (7) is connected with the first fuel injector (8) (1) and the second fuel injector (8)
(2), first fuel injector (8) (1) is connected to mailbox (1), and the second fuel injector (8) (2) is connected to engine (9), described
Electronic control unit and high-pressure oil pump (3), frequency converter (5), high pressure oil rail (7), the first fuel injector (8) (1) and the second fuel injector (8)
(2) control connection.
2. a kind of gasoline single cylinder engine high pressure oil supply device as described in claim 1, it is characterised in that：The fuel tank (1) and
Fuel filter (2) are provided between high-pressure oil pump (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810723928.0A CN108894901A (en) | 2018-07-04 | 2018-07-04 | A kind of gasoline single cylinder engine high pressure oil supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810723928.0A CN108894901A (en) | 2018-07-04 | 2018-07-04 | A kind of gasoline single cylinder engine high pressure oil supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108894901A true CN108894901A (en) | 2018-11-27 |
Family
ID=64348276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810723928.0A Pending CN108894901A (en) | 2018-07-04 | 2018-07-04 | A kind of gasoline single cylinder engine high pressure oil supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108894901A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113700581A (en) * | 2021-07-29 | 2021-11-26 | 东风汽车集团股份有限公司 | High-pressure fuel supply system, method, medium and equipment for single-cylinder engine rack |
| CN115075971A (en) * | 2022-06-13 | 2022-09-20 | 潍柴动力股份有限公司 | Single cylinder control method and device, electronic control unit and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1851256A (en) * | 2006-06-02 | 2006-10-25 | 北京理工大学 | Electrocontrolled high-pressure common rail experimental rakc |
| CN202250509U (en) * | 2011-08-31 | 2012-05-30 | 湖南奔腾动力科技有限公司 | High pressure common-rail fuel system of diesel engine |
| CN203098103U (en) * | 2013-01-14 | 2013-07-31 | 安徽江淮汽车股份有限公司 | Oil supply system of diesel engine |
-
2018
- 2018-07-04 CN CN201810723928.0A patent/CN108894901A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1851256A (en) * | 2006-06-02 | 2006-10-25 | 北京理工大学 | Electrocontrolled high-pressure common rail experimental rakc |
| CN202250509U (en) * | 2011-08-31 | 2012-05-30 | 湖南奔腾动力科技有限公司 | High pressure common-rail fuel system of diesel engine |
| CN203098103U (en) * | 2013-01-14 | 2013-07-31 | 安徽江淮汽车股份有限公司 | Oil supply system of diesel engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113700581A (en) * | 2021-07-29 | 2021-11-26 | 东风汽车集团股份有限公司 | High-pressure fuel supply system, method, medium and equipment for single-cylinder engine rack |
| CN115075971A (en) * | 2022-06-13 | 2022-09-20 | 潍柴动力股份有限公司 | Single cylinder control method and device, electronic control unit and storage medium |
| CN115075971B (en) * | 2022-06-13 | 2023-11-17 | 潍柴动力股份有限公司 | Single cylinder engine control method, device, electronic control unit and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181127 |