CN110529311A - A kind of split type fuel oil supply system of single cylinder common rail diesel engine - Google Patents
A kind of split type fuel oil supply system of single cylinder common rail diesel engine Download PDFInfo
- Publication number
- CN110529311A CN110529311A CN201910951855.5A CN201910951855A CN110529311A CN 110529311 A CN110529311 A CN 110529311A CN 201910951855 A CN201910951855 A CN 201910951855A CN 110529311 A CN110529311 A CN 110529311A
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- China
- Prior art keywords
- oil
- fuel
- single cylinder
- high pressure
- pump
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/12—Arrangements for cooling other engine or machine parts
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
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- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common rails
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/08—Cooling; Heating; Preventing freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P2003/001—Cooling liquid
Abstract
In order to solve the problems, such as that each component of single cylinder common rail machine needs to hang on single cylinder engine in the prior art, the present invention provides a kind of split type fuel oil supply system of single cylinder common rail diesel engine, including fuel tank, low-pressure fuel pump, oil-water separator, fuel oil filter, high pressure fuel pump, high pressure fuel rail, common-rail injector and single cylinder common rail machine；The low-pressure fuel pump is connect with fuel tank, is used for fuel feeding；The output end of the low-pressure fuel pump carries out water-oil separating by oil-water separator, the fuel oil of oil-water separator output is after filter filters, it is single cylinder common rail machine fuel feeding after being sequentially inputted to high pressure fuel rail, common-rail injector after being input to high pressure fuel pump progress secondary pressurized.Structure of the invention is compact, it is easy to carry, can complete independently operation without external equipment, can long-time steady operation, easy to maintenance, while each component of common rail system does not need independently place, arrangement is convenient on suspension single cylinder engine.
Description
Technical field
The invention belongs to a kind of confessions of the split type fuel oil of diesel engine test technical field more particularly to single cylinder common rail diesel engine
To system.
Background technique
Single cylinder common rail diesel engine combines the advantages of single cylinder diesel and high pressure co-rail system, not only realizes to air inlet pressure
The perfect control of power, charge flow rate, pressure at expulsion, also achieves to single cylinder diesel injection pressure, oil spout start-up time, oil spout
Finish time, the accurate adjusting of oil spout flow are provided simultaneously with the multiple functions such as low speed heavy pressure injection and multi-injection, extend list
The freedom degree of cylinder diesel optimization provides broader optimization space to further increase diesel engine performance, reducing discharge.It is high
Press fuel rail and common-rail injector as the most important component of single cylinder common rail diesel engine, precise structure, internal fuel pressure is most
It is high fuel pressurization system and fuel oil quality to be required stringent up to 300Mpa, it such as handles bad, high pressure fuel rail and altogether can be caused
The blocking of rail injector causes scrapping for entire common rail system, while because single cylinder common rail machine is small in size, light-weight, it is impossible to
Fuel system is suspended on one entirety of formation on machine as multi-cylinder common rail machine.Each component of common rail system needs to hang single cylinder
On machine, difficult arrangement.
Summary of the invention
In order to solve the problems, such as that each component of single cylinder common rail machine needs to hang on single cylinder engine in the prior art, the present invention provides one
The split type fuel oil supply system of kind single cylinder common rail diesel engine.
To achieve the goals above, the present invention use the specific scheme is that a kind of split type combustion of single cylinder common rail diesel engine
Oily feed system, it is characterised in that: including fuel tank, low-pressure fuel pump, oil-water separator, fuel oil filter, high pressure fuel pump,
High pressure fuel rail, common-rail injector and single cylinder common rail machine；
Wherein, the low-pressure fuel pump is connect with fuel tank, is used for fuel feeding；The output end of the low-pressure fuel pump passes through oil
Water separator carries out water-oil separating, and the fuel oil of oil-water separator output is input to high pressure fuel pump after filter filters
It is single cylinder common rail machine fuel feeding after being sequentially inputted to high pressure fuel rail, common-rail injector after carrying out secondary pressurized.
A kind of split type fuel oil supply system of single cylinder common rail diesel engine, it is characterised in that: further include for high compression ignition
Oil pump carries out cooling oil cooled system；
Wherein, the oil cooled system includes oil tank, lubricating oil pump, oil filter；And the lubricating oil pump
High pressure fuel pump is cooled down after oil strainer after extracting machine oil in oil tank, then, from high pressure fuel pump
In flow through machine oil and come back in oil tank.
The utility model has the advantages that structure of the invention it is compact, it is easy to carry, can complete independently operation without external equipment, can for a long time
It is stable operation, easy to maintenance, while each component of common rail system does not need independently place, arrangement is convenient on suspension single cylinder engine.
Detailed description of the invention
Fig. 1 is present system schematic diagram, comprising: 1, fuel tank, 2, thermometer I, 3, low-pressure fuel pump, 4, water-oil separating
Machine, 5, pressure gauge I, 6, thick fuel filter, 7, smart fuel filter, 8, pressure gauge II, 9, high pressure fuel pump, 10, solenoid valve
I, 11, pressure gauge III, 12, thermometer II, 13, high pressure fuel rail, 14, common-rail injector, 15, solenoid valve II, 16, single cylinder common rail
Machine, 17, hydraulic dynamometer, 18, oil tank, 19, lubricating oil pump, 20, oil filter, 21, pressure gauge IV, 22, thermometer III,
23, thermometer IV, 24, pressure gauge V, 25, Fuel Oil Cooler.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.
A kind of single cylinder common rail diesel engine that can satisfy divides fuel pressurization ability and fuel oil quality requirement as shown in Figure 1:
Body formula fuel oil supply system.Fuel oil needed for single cylinder common rail machine 16 is through fuel tank 1, low-pressure fuel pump 3, oil-water separator 4, thick fuel oil
Filter 6, smart fuel filter 7, high pressure fuel pump 9, high pressure fuel rail 13, common-rail injector 14 enter single cylinder common rail machine 16:
Fuel oil needed for fuel tank 1 possesses enough volume storage single cylinder common rail machines 16；Low-pressure fuel pump 3 extracts fuel oil from fuel tank 1,
Thermometer I2 is installed on the front tube road of low-pressure fuel pump 3 for monitoring fuel oil temperature；Oil-water separator 4 is to the water in fuel oil
It is separated, controls the moisture content in fuel oil；Thick fuel filter 6 and smart fuel filter 7 are in filter fuel
Particulate contaminant is equipped with pressure gauge I 5, the fuel pipe after smart fuel filter 7 on the fuel passage before thick fuel filter 6
Road is equipped with pressure gauge II 8, changes for monitoring fuel oil fuel pressure after thick fuel filter 6 and smart fuel filter 7
Situation；High pressure fuel pump 9 carries out secondary pressurized to fuel oil, the fuel oil of the enough pressure of high pressure fuel rail 13 is supplied, in high pressure fuel
Electromagnetic valve I 10 is installed on fuel pipe between pump 9 and high pressure fuel rail 13, for controlling the combustion for entering high pressure fuel rail 13
Oil pressure；High pressure fuel rail 13 is equipped with pressure gauge III 11 and thermometer II for storing high pressure fuel on high pressure fuel rail 13
12 for monitoring the pressure, temperature variation situation of the high pressure fuel in high pressure fuel rail 13；High pressure fuel passes through common-rail injector
14 into common rail single cylinder engine 16 jet atomization fuel oil, electromagnetic valve II 15 is installed for controlling co-rail oil injection on common-rail injector 14
14 start-up time of device, finish time control oil injection duration in turn；Hydraulic dynamometer 17 is provided and is born needed for common rail single cylinder engine 16
It carries.
The fuel oil that 25 pairs of Fuel Oil Cooler recycling are equipped on the pipeline that fuel oil is recovered to fuel tank 1 is cooled down to protect
The fuel oil temperature of card fuel tank 1 persistently keeps low-temperature condition.
For the lasting normal work for ensureing high pressure fuel pump 9, the invention also includes oil cooled systems: high pressure fuel pump 9
Required machine oil cold high pressure fuel pump 9 after oil tank 18, lubricating oil pump 19, oil filter 20, and passed through by oil return line
The cooling machine oil completed is recovered to oil tank 18: machine needed for oil tank 18 possesses enough volume storage high pressure fuel pumps
Oil carries cooling system, for cooling down to the machine oil in oil tank 18；The extraction machine from oil tank 18 of lubricating oil pump 19
Oil, oil filter 20 are filtered machine oil, guarantee the cleannes of machine oil；On the machine oil pipeline before cooling of high pressure fuel pump 9
Pressure gauge IV21 and thermometer III22 are installed, it is cooling for monitoring the engine oil pressure before cooling of high pressure fuel pump 9 and temperature
Preceding engine oil pressure and temperature is in the range of meeting the requirements；Pressure is installed on the machine oil pipeline after cooling of high pressure fuel pump 9
Table V 24 and thermometer IV23, for monitoring the engine oil pressure after cooling of high pressure fuel pump 9 and temperature, by comparison it is cooling before and
The situation of change of engine oil pressure before cooling and temperature, deteminate machine oil pipe line stopping state, cooling effect guarantee high pressure fuel pump
9 using safe.
The present invention remaining equipment in addition to high pressure fuel rail 13, common-rail injector 14 and solenoid valve II 15 is not suspended on single cylinder
On common rail machine 16, it is external equipment, all can work independently, belongs to split-type design.
The present invention during the work time can be according to thermometer I 2, pressure gauge I 5, pressure gauge II 8, high pressure fuel pump 9, pressure
Table III 11, thermometer II 12, the temperature and pressure of pressure gauge IV 21, thermometer III 22, thermometer IV 23, pressure gauge V 24 becomes
Change situation monitored over time whole system high-pressure oil passage and machine oil pipeline intermediate fuel oil, machine oil temperature and pressure situation of change, be
System determines rapidly failure cause when breaking down.Before not breaking down, according to the display situation of each thermometer and pressure gauge, sentence
Surely it whether there is abnormality, carry out fault pre-alarming.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can change or replacement easily, belong to this hair
Within bright protection scope.Therefore it is subject to the protection scope in claims described in protection scope of the present invention.
Claims (6)
1. a kind of split type fuel oil supply system of single cylinder common rail diesel engine, it is characterised in that: including fuel tank, low-voltage fuel
Pump, oil-water separator, fuel oil filter, high pressure fuel pump, high pressure fuel rail, common-rail injector and single cylinder common rail machine；
Wherein, the low-pressure fuel pump is connect with fuel tank, is used for fuel feeding；The output end of the low-pressure fuel pump passes through grease point
It disembarks and carries out water-oil separating, the fuel oil of oil-water separator output is input to high pressure fuel pump progress after filter filters
It is single cylinder common rail machine fuel feeding after being sequentially inputted to high pressure fuel rail, common-rail injector after secondary pressurized.
2. a kind of split type fuel oil supply system of single cylinder common rail diesel engine according to claim 1, it is characterised in that: also
Including for carrying out cooling oil cooled system to high pressure fuel pump；
Wherein, the oil cooled system includes oil tank, lubricating oil pump, oil filter；And
The lubricating oil pump cools down high pressure fuel pump after oil strainer after extracting machine oil in oil tank, so
Afterwards, it comes back in oil tank from flowing through machine oil in high pressure fuel pump.
3. a kind of split type fuel oil supply system of single cylinder common rail diesel engine according to claim 1, it is characterised in that: institute
The fuel oil filter stated includes thick fuel filter and smart fuel filter；Wherein, thick fuel filter is close to oil water separator
Setting filters fuel oil by smart fuel filter and thick fuel filter twice；
Wherein, it is provided with pressure gauge I on the fuel passage before thick fuel filter, is set on the fuel pipe after smart fuel filter
It is equipped with pressure gauge II, for monitoring fuel oil fuel pressure situation of change after thick fuel filter and smart fuel filter.
4. a kind of split type fuel oil supply system of single cylinder common rail diesel engine according to claim 1, it is characterised in that: high
It is provided with electromagnetic valve I on fuel pipe between compression ignition oil pump and high pressure fuel rail, for controlling the combustion for entering high pressure fuel rail
Oil pressure.
5. a kind of split type fuel oil supply system of single cylinder common rail diesel engine according to claim 2, it is characterised in that: machine
Pressure gauge IV and thermometer III is provided between oil rectifier and high pressure fuel pump, it is before cooling for monitoring high pressure fuel pump
Engine oil pressure and temperature, engine oil pressure before cooling and temperature are in the range of meeting the requirements.
6. a kind of split type fuel oil supply system of single cylinder common rail diesel engine according to claim 2, it is characterised in that: high
It is provided with pressure gauge V and thermometer IV on machine oil pipeline after cooling between compression ignition oil pump and oil tank, for monitoring height
Compression ignition oil pump engine oil pressure after cooling and temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910951855.5A CN110529311A (en) | 2019-10-09 | 2019-10-09 | A kind of split type fuel oil supply system of single cylinder common rail diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910951855.5A CN110529311A (en) | 2019-10-09 | 2019-10-09 | A kind of split type fuel oil supply system of single cylinder common rail diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110529311A true CN110529311A (en) | 2019-12-03 |
Family
ID=68671519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910951855.5A Pending CN110529311A (en) | 2019-10-09 | 2019-10-09 | A kind of split type fuel oil supply system of single cylinder common rail diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110529311A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320684A (en) * | 2021-12-30 | 2022-04-12 | 南通航泰机械有限公司 | Split type fuel supply system of single-cylinder common-rail diesel engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201412250Y (en) * | 2009-02-25 | 2010-02-24 | 无锡油泵油嘴研究所 | Oil supply pump performance test-bed of high-pressure common rail system of diesel engine |
| CN103261644A (en) * | 2010-12-30 | 2013-08-21 | 大陆汽车有限公司 | Fuel injection system of internal combustion engine, and associated pressure regulating method |
| CN104612872A (en) * | 2014-12-29 | 2015-05-13 | 沪东重机有限公司 | Heavy-oil high pressure common rail fuel injection system for marine low-speed diesel engine |
| CN107387285A (en) * | 2017-09-04 | 2017-11-24 | 河南柴油机重工有限责任公司 | A kind of electronic control system device for detecting sealability |
| CN107664067A (en) * | 2016-07-29 | 2018-02-06 | 常柴股份有限公司 | Single cylinder common rail diesel engine |
| CN210564855U (en) * | 2019-10-09 | 2020-05-19 | 河南柴油机重工有限责任公司 | Split fuel supply system of single-cylinder common-rail diesel engine |
-
2019
- 2019-10-09 CN CN201910951855.5A patent/CN110529311A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201412250Y (en) * | 2009-02-25 | 2010-02-24 | 无锡油泵油嘴研究所 | Oil supply pump performance test-bed of high-pressure common rail system of diesel engine |
| CN103261644A (en) * | 2010-12-30 | 2013-08-21 | 大陆汽车有限公司 | Fuel injection system of internal combustion engine, and associated pressure regulating method |
| CN104612872A (en) * | 2014-12-29 | 2015-05-13 | 沪东重机有限公司 | Heavy-oil high pressure common rail fuel injection system for marine low-speed diesel engine |
| CN107664067A (en) * | 2016-07-29 | 2018-02-06 | 常柴股份有限公司 | Single cylinder common rail diesel engine |
| CN107387285A (en) * | 2017-09-04 | 2017-11-24 | 河南柴油机重工有限责任公司 | A kind of electronic control system device for detecting sealability |
| CN210564855U (en) * | 2019-10-09 | 2020-05-19 | 河南柴油机重工有限责任公司 | Split fuel supply system of single-cylinder common-rail diesel engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320684A (en) * | 2021-12-30 | 2022-04-12 | 南通航泰机械有限公司 | Split type fuel supply system of single-cylinder common-rail diesel engine |
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