CN105525989B - A kind of automobile-used bifuel system using natural gas - Google Patents
A kind of automobile-used bifuel system using natural gas Download PDFInfo
- Publication number
- CN105525989B CN105525989B CN201610050386.6A CN201610050386A CN105525989B CN 105525989 B CN105525989 B CN 105525989B CN 201610050386 A CN201610050386 A CN 201610050386A CN 105525989 B CN105525989 B CN 105525989B
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- CN
- China
- Prior art keywords
- natural gas
- distributor
- injection
- natural
- hole
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B69/00—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types
- F02B69/02—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types for different fuel types, other than engines indifferent to fuel consumed, e.g. convertible from light to heavy fuel
- F02B69/04—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types for different fuel types, other than engines indifferent to fuel consumed, e.g. convertible from light to heavy fuel for gaseous and non-gaseous fuels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/18—Indicating or safety devices
- F01M1/20—Indicating or safety devices concerning lubricant pressure
- F01M1/22—Indicating or safety devices concerning lubricant pressure rendering machines or engines inoperative or idling on pressure failure
- F01M1/24—Indicating or safety devices concerning lubricant pressure rendering machines or engines inoperative or idling on pressure failure acting on engine fuel system
-
- 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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
-
- 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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
-
- 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
- F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
- F02M43/04—Injectors peculiar thereto
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The present invention relates to a kind of automobile-used bifuel system using natural gas, including engine, natural air feed system, natural gas timed injection distributor, injection pump, lubricating arrangement and control device；The natural air feed system is connected on natural gas timed injection distributor, and the natural gas timed injection distributor sets on the engine and is connected with injection pump；The lubricating arrangement is connected by lubricating loop with natural gas timed injection distributor；The control device includes controller dial plate and alarm.The advantage of the invention is that：The change of diesel engines is not made on the basis of former diesel engine, bifuel system repacking is simple, high for oil cut rate, good economy performance；Control device simplifies, no imported components, and system is practical, cost is cheap, and maintenance and maintenance are simple, and maintenance cost is low；Complicated process without natural gas electric-controlling injection system, repacking part reliability are good.
Description
Technical field
The present invention relates to a kind of natural gas applications field, more particularly to a kind of automobile-used bifuel system using natural gas.
Background technology
Diesel vehicle typically uses gas as single fuel car mode using CNG/LNG, changes former diesel engine or in former diesel engine
On the basis of repack natural gas engine into, the recondition expense of this gas as single fuel car is big, and repacking is complicated, and daily in diesel vehicle
In the long-distance passenger and freight transportation way used without natural gas filling station in the case of can not use, limit the popularization and application of the technology.
It is more flexibly to use diesel gas dual-fuel vehicle mode, can not run during natural gas with pure diesel fuel mode,
Diesel vehicle multifuel combustion natural gas when having natural gas.
Current diesel gas dual-fuel vehicle all uses natural gas electric-controlled injection technology, increases on the basis of former diesel engine
The natural gas Gas supply system with electronically controled injection of a set of high-voltage electromagnetic injection valve and ECU ECUs composition, in terms of practical effect,
Such technology has the following disadvantages：Gas Comprehensive is low for oil cut rate（Refer to that natural gas replaces the ratio of bavin Water Oil Or Gas for oil cut rate
Weight）, only 40~50%；Control mode is complicated, and from import component, repacking cost is high；Detection and maintenance needs professional people
Member, maintenance cost are high.It is generally less economical, it is small to diesel vehicle user's attraction.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of simple in construction, the cheap car using natural gas of cost of repacking
Use bifuel system.
In order to solve the above technical problems, the technical scheme is that：A kind of automobile-used bifuel system using natural gas,
Its innovative point is：Including engine, natural air feed system, natural gas timed injection distributor, injection pump, lubricating arrangement with
And control device；
The natural air feed system is connected on natural gas timed injection distributor, the natural gas timed injection distribution
Device sets on the engine and is connected with injection pump；The lubricating arrangement passes through lubricating loop and natural gas timed injection distributor
Connection；The control device includes controller dial plate and alarm.
Further, the natural gas timed injection distributor includes drive sleeve, distributor axis and distributor body；It is described
Drive sleeve is fixedly connected on transmission gear of oil injection pump；The quill shaft that the distributor axis passes through for a confession natural gas, its side
It is upper that there is a natural gas flow through hole A；The distributor body is sleeved on distributor axis, thereon position corresponding with natural gas flow through hole A
The place of putting is evenly equipped with a circle natural gas flow through hole B；The natural gas flow through hole B circumferentially direction front and rear distributing order respectively with not
Being connected with cylinder, the cylinder is connected according to firing order with natural gas flow through hole B, and between cylinder and natural gas flow through hole B
Connected by single cylinder playpipe.
Further, the lubricating arrangement includes grease-box, grease pump and the lubricating oil precision mistake being sequentially connected
Filter.
Further, the alarm includes the lubricating oil pressure alarm being arranged in oil circuit and is arranged on
Engine oil pressure alarm on machine oil loop；The controller dial plate is arranged in driver's cabin, including with air cock, lubrication pressure
The low malfunction indicator lamp of power, natural gas tolerance indicator lamp.
Further, there is accelerator rod on the injection pump, be provided with the natural air feed system and drawn with throttle
The natural gas control butterfly valve of bar linkage.
The advantage of the invention is that：
（1）A kind of double fuel system of the new diesel vehicle multifuel combustion natural gas for being different from conventional electric-controlling injection system is invented
System, does not make the change of diesel engines, good economy performance on the basis of former diesel engine；Bifuel system repacking is simple, high for oil cut rate,
Control device simplifies, no imported components, and system is practical, cost is cheap；Maintenance cost is low.Maintenance and maintenance are simple, without natural
The complicated process of gas electric-controlling injection system, repacking part reliability are good；Using mechanically operated method, normal driver can also be seen
Understand, be easy to independently repair, there is practicality than electric-controlling injection system.
（2）By installing a set of natural gas timed injection distributor synchronous with injection pump, diesel oil at regular time and quantity according to
While diesel engine firing order is sprayed to each cylinder successively, natural gas is also at regular time and quantity according to diesel engine firing order
Spray successively to each cylinder.
（3）In order to ensure the normal rotation between distributor body and distributor axis, and prevent the safety of natural gas leaking
Property, increase a set of independent lubricating arrangement.
（4）In order to ensure the bifuel system reliability service of diesel vehicle multifuel combustion natural gas, controller dial plate and report are set
Alert device, once the lubricating oil pressure of natural gas timed injection distributor is low or diesel engine oil pressure is low, electromagnetic valve for natural gas
Action, cuts off natural air-air source, and diesel engine returns to pure diesel oil mode of operation.
（5）The accurate linkage for controlling butterfly valve by diesel engine throttle pull bar and natural gas controls, and ensures diesel vehicle in idling
Under to fully loaded each load condition can the reliable and stable operation under dual fuel mode, the synthesis for improving natural gas replaces oil cut rate.
Brief description of the drawings
Fig. 1 is a kind of embodiment schematic diagram of automobile-used bifuel system using natural gas of the invention.
Fig. 2 is natural gas timed injection distributor in a kind of automobile-used bifuel system embodiment using natural gas of the invention
Schematic cross-section.
Embodiment
As shown in Figure 1 and Figure 2, the present invention implements to be used on comingses 6BT118 diesel vehicles, including diesel engine, natural gas
Feedway, natural gas timed injection distributor 4, injection pump 10, lubricating arrangement and control device；Natural gas timed injection point
Orchestration 4 is connected on injection pump 10, and lubricating arrangement 6 is connected by lubricating loop with natural gas timed injection distributor 4；Control dress
Put including controller dial plate 7 and alarm.
Natural air feed system includes connected natural gas bottle 17, hand stop valve 16, magnetic valve 15, pressure-reducing valve 14, day
Right gas control butterfly valve 13 and natural gas precise filter 3；Natural gas timed injection distributor 4 includes drive sleeve 4c, distributor
Axle 4b and distributor body 4a；Drive sleeve 4c is fixedly connected on the travelling gear of injection pump 10；Distributor axis 4b is a quill shaft,
There is a natural gas flow through hole A4d on its side；Distributor body 4a is sleeved on distributor axis 4b, thereon with natural gas flow through hole
A4d corresponding positions are evenly equipped with a circle natural gas flow through hole B4e；The front and rear arrangement in natural gas flow through hole B4e circumferentially directions is suitable
Sequence is connected with difference cylinder respectively, and cylinder is connected according to firing order with natural gas flow through hole B4e, and cylinder circulates with natural gas
Connected between the B4e of hole by single cylinder playpipe 18, the one end of single cylinder playpipe 18 extends the bavin in the air intake duct of cylinder cover for diesel engine 19
Near oil machine inlet valve 20；There is accelerator rod on injection pump 10；In order to reach natural gas injection purpose, it can be stated that naturally
Gas supply pressure is consistently higher than diesel engine supercharging air pressure, and exemplary is controlled between 0.10~0.15Mpa；Lubricating arrangement
6 include grease-box 6c, the grease pump 6b and lubricating oil accurate filter 6a that are sequentially connected, there is provided lubricating oil pressure ratio
Gas pressure is slightly higher, and exemplary is controlled between 0.12~0.17Mpa, and meet natural gas timed injection distributor 4 can
By stable operation；Alarm includes the lubricating oil pressure alarm 5 being arranged in oil circuit and is arranged on diesel engine machine
Engine oil pressure alarm 8 on oil return line；Controller dial plate 7 is arranged in driver's cabin, including with air cock 7a, lubricating oil pressure
Low malfunction indicator lamp 7b, natural gas tolerance indicator lamp 7c；There is linkage control between accelerator rod 11 and natural gas control butterfly valve 13
Mechanism 12 processed, linkage connecting rod can be used to realize.
Natural gas controls from CNG/LNG natural gas bottles 17 through hand stop valve 16, magnetic valve 15, pressure-reducing valve 14, natural gas
Butterfly valve 13, natural gas precise filter 3 enter natural gas timed injection distributor 4.Natural gas timed injection distributor 4 is installed
It is fixed on Gear Cavity Cover of Diesel Engine 2, and by drive sleeve 4c connections transmission gear of oil injection pump 9, drives and divide when diesel engine 1 operates
Orchestration axle 4b is rotated in distributor body 4a, when natural gas flow through hole A4d connects with each natural gas flow through hole B4e successively,
Natural gas is sprayed, and the air intake duct of cylinder cover for diesel engine 19 is introduced through single cylinder playpipe 18, natural gas is in diesel engine inlet valve 20
Sprayed into successively during opening in cylinder of diesel engine with diesel oil, air mixed combustion work done.Natural gas tolerance size is controlled by natural gas
Butterfly valve 13 controls, the accelerator rod 11 on natural gas control butterfly valve 13 and diesel injection pump 10 by coordinated signals mechanism 12 come
Accurate linkage controls, and coordinated signals mechanism 12 can be the direct linkage mechanism of accurate dimension or elastic link gear.
Natural gas timed injection distributor 4 is lubricated by independent lubricating device 6, meets the reliable steady of natural gas timed injection distributor 4
Fixed operation.
Controller dial plate 7 is arranged in diesel vehicle driver's cabin, and engine oil pressure alarm for diesel engine 8 is arranged on diesel engine lubricating oil
On loop, lubricating oil pressure alarm 5 is arranged in the oil circuit of natural gas timed injection distributor 4.Once natural gas
The lubricating oil pressure of timed injection distributor 4 is low or diesel engine oil pressure is low, and electromagnetic valve for natural gas 15 acts, and automatically cuts off
Natural air-air source 17, diesel engine 1 return to pure diesel oil mode of operation.Air cock 7a is used in closing, and dual-fuel vehicle enters pure diesel oil work
Operation mode；Air cock 7a is used in unlatching, and dual-fuel vehicle enters diesel gas double fuel mode of operation.
A kind of automobile-used bifuel system using natural gas of the invention is than using conventional natural gas electric-controlling injection system
System is higher by 15~25% for oil cut rate, saves diesel oil remarkable benefit, good economy performance；Bifuel system repacking is simple, control device
Simplify, no imported components, system is practical, cost is cheap；Maintenance cost is low, and maintenance and maintenance are simple, no automatically controlled spray of natural gas
The complicated process of system is penetrated, repacking part reliability is good.
The present invention has obvious economic benefit and social benefit, is especially reduced increasingly in the price difference of oil and natural gas
Market environment and the increasingly strict environment of environmental requirement under, the present invention has high-volume promotional value.
The general principle and principal character of the present invention has been shown and described above.It should be understood by those skilled in the art that
The present invention is not limited to the above embodiments, merely illustrating the principles of the invention described in above-described embodiment and specification,
Without departing from the spirit and scope, various changes and modifications of the present invention are possible, and these changes and improvements all fall
Enter in scope of the claimed invention.The scope of the present invention is defined by the appended claims and its equivalents.
Claims (4)
- A kind of 1. automobile-used bifuel system using natural gas, it is characterised in that：Including engine, natural air feed system, day Right gas timed injection distributor, injection pump, lubricating arrangement and control device；The natural air feed system is connected to natural gas On timed injection distributor, the natural gas timed injection distributor sets on the engine and is connected with injection pump；The profit Sliding device is connected by lubricating loop with natural gas timed injection distributor；The control device includes controller dial plate and report Alert device；The natural gas timed injection distributor includes drive sleeve, distributor axis and distributor body；The drive sleeve, which is fixed, to be connected It is connected on transmission gear of oil injection pump；The distributor axis is a quill shaft passed through for natural gas, is had on its side one natural Air-flow through hole A；The distributor body is sleeved on distributor axis, is evenly equipped with one with natural gas flow through hole A corresponding positions thereon Enclose natural gas flow through hole B；The natural gas flow through hole B circumferentially direction front and rear distributing order respectively from different cylinders Connection, the cylinder are connected according to firing order with natural gas flow through hole B, and between cylinder and natural gas flow through hole B Connected by single cylinder playpipe.
- A kind of 2. automobile-used bifuel system using natural gas according to claim 1, it is characterised in that：The lubrication dress Put and be connected on natural gas timed injection distributor, including the grease-box, grease pump and the lubricating oil that are sequentially connected are accurate Filter.
- A kind of 3. automobile-used bifuel system using natural gas according to claim 1, it is characterised in that：The alarm Including the lubricating oil pressure alarm being arranged in oil circuit and the engine oil pressure alarm being arranged on machine oil loop； The controller dial plate is arranged in driver's cabin, including is referred to air cock, the low malfunction indicator lamp of lubricating oil pressure, natural gas tolerance Show lamp.
- A kind of 4. automobile-used bifuel system using natural gas according to claim 1, it is characterised in that：The injection pump It is upper that there is accelerator rod, it is provided with the natural air feed system and controls butterfly valve with the natural gas of accelerator rod linkage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610050386.6A CN105525989B (en) | 2016-01-26 | 2016-01-26 | A kind of automobile-used bifuel system using natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610050386.6A CN105525989B (en) | 2016-01-26 | 2016-01-26 | A kind of automobile-used bifuel system using natural gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105525989A CN105525989A (en) | 2016-04-27 |
| CN105525989B true CN105525989B (en) | 2018-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610050386.6A Active CN105525989B (en) | 2016-01-26 | 2016-01-26 | A kind of automobile-used bifuel system using natural gas |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107762619B (en) * | 2017-11-17 | 2023-09-01 | 安庆中船柴油机有限公司 | Marine dual-fuel engine |
| DE102018200405B4 (en) | 2018-01-11 | 2022-12-29 | Ford Global Technologies, Llc | Device for providing lubricant |
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|---|---|---|---|---|
| US3908619A (en) * | 1973-10-03 | 1975-09-30 | Bosch Gmbh Robert | Fuel injection pumps for internal combustion engines |
| CN102537411A (en) * | 2010-12-14 | 2012-07-04 | 中国科学院过程工程研究所 | Rotary multi-way valve |
| CN203367210U (en) * | 2013-06-08 | 2013-12-25 | 邓源 | Multichannel rotary distributor |
| CN203978671U (en) * | 2014-07-23 | 2014-12-03 | 山东大学 | The diesel oil ignited direct-jet natural gas engine fuel supply system of trace |
| CN203978644U (en) * | 2014-07-23 | 2014-12-03 | 山东大学 | Automatically controlled servo pressure-regulating formula natural gas engine auxiliary fuel supply-system |
| CN205532873U (en) * | 2016-01-26 | 2016-08-31 | 江苏盛源燃气动力机械有限公司 | Use automobile -used couple of fuel system of natural gas |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63268968A (en) * | 1987-04-27 | 1988-11-07 | Mitsubishi Heavy Ind Ltd | Fuel supply device for internal combustion engine |
| JP2013130067A (en) * | 2011-12-20 | 2013-07-04 | Yamada Seisakusho Co Ltd | Internal gear pump |
-
2016
- 2016-01-26 CN CN201610050386.6A patent/CN105525989B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3908619A (en) * | 1973-10-03 | 1975-09-30 | Bosch Gmbh Robert | Fuel injection pumps for internal combustion engines |
| CN102537411A (en) * | 2010-12-14 | 2012-07-04 | 中国科学院过程工程研究所 | Rotary multi-way valve |
| CN203367210U (en) * | 2013-06-08 | 2013-12-25 | 邓源 | Multichannel rotary distributor |
| CN203978671U (en) * | 2014-07-23 | 2014-12-03 | 山东大学 | The diesel oil ignited direct-jet natural gas engine fuel supply system of trace |
| CN203978644U (en) * | 2014-07-23 | 2014-12-03 | 山东大学 | Automatically controlled servo pressure-regulating formula natural gas engine auxiliary fuel supply-system |
| CN205532873U (en) * | 2016-01-26 | 2016-08-31 | 江苏盛源燃气动力机械有限公司 | Use automobile -used couple of fuel system of natural gas |
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| CN105525989A (en) | 2016-04-27 |
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