CN201687585U - Fuel system controller of dual-fuel engine - Google Patents
Fuel system controller of dual-fuel engine Download PDFInfo
- Publication number
- CN201687585U CN201687585U CN2009200782893U CN200920078289U CN201687585U CN 201687585 U CN201687585 U CN 201687585U CN 2009200782893 U CN2009200782893 U CN 2009200782893U CN 200920078289 U CN200920078289 U CN 200920078289U CN 201687585 U CN201687585 U CN 201687585U
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- China
- Prior art keywords
- fuel
- dimethyl ether
- oil
- injection pump
- electronic control
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- Expired - Fee Related
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Abstract
The utility model discloses a fuel system controller of a dual-fuel engine. A dimethyl ether oil supply system is formed by sequentially and serially connecting a dimethyl ether storage tank, a dimethyl ether coarse filter, a dimethyl ether pressure boosting pump, a dimethyl ether fine filter, a fuel injection pump oil inlet electronic control switch, a fuel injection pump and an engine, and a diesel oil supply system is formed by sequentially and serially connecting a diesel oil storage tank, a diesel oil coarse filter, a diesel oil conveying pump, a diesel oil fine filter, a fuel injection pump oil inlet electronic control switch, a fuel injection pump and an engine. The device is applicable to dual-fuel systems of the dimethyl and the diesel oil, has little change on the engine, has the advantages of simple structure, simple and convenient operation and low maintenance and repair cost, is particularly suitable for the transformation use of traditional diesel engines, and has obvious economic benefits and social benefits.
Description
One, technical field
The utility model relates to a kind of duel fuel engine control system device, and particularly a kind of difference can be used the engine fuel system control gear of dimethyl ether and two kinds of fuel of diesel oil.
Two, technical background
Dimethyl ether (being called for short DME) is as a kind of novel nontoxic oxygenated fuel, and its unique physicochemical property has determined its relative and other alternative fuel, is the first-selected alternative fuel that realizes minimum discharge.Mainly show: dimethyl ether has high cetane number, and delay period is short, and the atomizing good mixing property can reduce harmful components NOx and PM and generate, and reduces combustion noise, and realizes smokeless combustion fully, is a kind of low emission cleaning alternative fuel.At present, dimethyl ether is applied on motor as a kind of environmental protection fuel.Yet, particularity because of its fuel, motor occurs easily that thereby premature wear, injection pump plunger are killed, oil-fired system easily produces air-resistance phenomenon makes the engine start difficulty in independent using process, and the utility model is a kind of technological approaches that effectively addresses the above problem.
Three, summary of the invention
Technical problem to be solved in the utility model provides a kind of for the motor duel fuel engine fuel system control gear that uses two kinds of fuel of dimethyl ether-diesel oil, when engine cold-start, motor adopts diesel fuel to start earlier, motor enters the normal operation operating mode, by control system diesel oil is replaced as dimethyl ether fuel, realizes the running of environmental protection dimethyl ether fuel.Control gear adopts dimethyl ether fuel is replaced as diesel fuel before the engine shutdown; fully to exclude dimethyl ether fuel remaining in the oil-fired system;, kill with oil-fired system and air-resistance phenomenon occurs because the dimethyl ether fuel additive residues in the Injection Pump to avoid and cause plunger.
The utility model is to realize like this, duel fuel engine fuel system control gear, the dimethyl ether basin, the dimethyl ether strainer, the dimethyl ether suction booster, the dimethyl ether secondary filter, fuel-injection pump oil-feed electronic control switch, fuel-injection pump and motor are composed in series the dimethyl ether fuel system successively, diesel storing, diesel oil strainer, diesel oil transfer pump, the diesel oil secondary filter, fuel-injection pump oil-feed electronic control switch, fuel-injection pump and motor are composed in series diesel fuel systems successively, and fuel-injection pump oil return electronic control switch is positioned on the return line of fuel-injection pump and with the dimethyl ether basin and is connected, fuel injector oil return electronic control switch is positioned on the return line of motor and is connected with the dimethyl ether basin, and diesel oil oil return electronic control switch is positioned on the return line of diesel oil transfer pump.
Because when engine start, operation or shutdown; can adopt the bifuel system of dimethyl ether or diesel oil; therefore can realize reducing the motor noxious emission, it is convenient to start, and avoids the oil-fired system generation air-resistance phenomenon and the fuel-injection pump of duel fuel engine to kill phenomenon.
Four, description of drawings
Fig. 1 is a duel fuel engine fuel system control gear working principle schematic representation.
Among the figure, 1 is diesel storing, and 2 is the dimethyl ether basin, 3 is the diesel oil strainer, and 4 is the diesel oil oil transfer pump, and 5 is the diesel oil secondary filter, 6 is fuel-injection pump oil-feed electronic control switch, and 7 is the dimethyl ether secondary filter, and 8 is the dimethyl ether suction booster, 9 is the dimethyl ether strainer, 10 is diesel oil oil return electronic control switch, and 11 is fuel-injection pump oil return electronic control switch, and 12 is fuel-injection pump, 13 is motor, and 14 is fuel injector oil return electronic control switch.
Five, embodiment
As shown in Figure 1, duel fuel engine fuel system control gear, dimethyl ether basin 2, dimethyl ether strainer 9, dimethyl ether suction booster 8, dimethyl ether secondary filter 7, fuel-injection pump oil-feed electronic control switch 6, fuel-injection pump 12 and motor 13 are composed in series the dimethyl ether fuel system successively, diesel storing 1, diesel oil strainer 3, diesel oil transfer pump 4, diesel oil secondary filter 5, fuel-injection pump oil-feed electronic control switch 6, fuel-injection pump 12 and motor 13 are composed in series diesel fuel systems successively, and fuel-injection pump oil return electronic control switch 11 is positioned on the return line of fuel-injection pump 12 and with dimethyl ether basin 2 and is connected, fuel injector oil return electronic control switch 14 is positioned on the return line of motor and is connected with dimethyl ether basin 2, and diesel oil oil return electronic control switch 10 is positioned on the return line of diesel oil oil transfer pump 4.Dimethyl ether and diesel dual-fuel system adopt same fuel-injection pump 12 and sparger, fuel-injection pump oil-feed electronic control switch 6, fuel-injection pump oil return electronic control switch 11 and fuel injector oil return electronic control switch 14.Can select to use diesel oil or dimethyl ether fuel system according to the different running state needs of motor.When motor is starting or stoping when running, need to use diesel fuel systems, by fuel-injection pump oil-feed electronic control switch 6, diesel oil is by diesel storing 1, diesel oil strainer 3, diesel oil transfer pump 4, diesel oil secondary filter 5, enter fuel-injection pump 12, and with diesel oil oil return electronic control switch 10, fuel injector oil return electronic control switch 14 and fuel-injection pump oil return electronic control switch 11 formed the diesel fuel systems work.When motor during in the normal operation operating mode, need to use the dimethyl ether fuel system, by fuel-injection pump oil-feed electronic control switch 6 diesel oil is switched to dimethyl ether, by dimethyl ether basin 2, dimethyl ether strainer 9, dimethyl ether suction booster 8, dimethyl ether secondary filter 7, enter fuel-injection pump 12, and with fuel-injection pump oil return electronic control switch 11, fuel injector oil return electronic control switch 14 is formed the dimethyl ether fuel system works.Fuel-injection pump 12 links to each other with fuel-injection pump oil-feed electronic control switch 6, the oil sprayer return tube links to each other with fuel injector oil return electronic control switch 14, simultaneously with fuel-injection pump oil return electronic control switch 11 with diesel oil oil return electronic control switch 10 is transferred to dimethyl ether respectively or diesel fuel systems is carried out work, thereby reach the requirement of bifuel system.This device can make motor work under dimethyl ether and diesel dual-fuel state, also can work under the full diesel oil state or under the full dimethyl ether state.The working state of motor is by fuel-injection pump oil-feed electronic control switch 6, diesel oil oil return electronic control switch 10, fuel-injection pump oil return electronic control switch 11 and 14 controls of fuel injector oil return electronic control switch.
Because this device is when the normal operation operating mode, adopt the operation of dimethyl ether fuel system, can effectively reduce noxious emission generates, engine start or out of service before, the operation of employing diesel fuel systems, fully exclude dimethyl ether fuel remaining in the oil-fired system, make it difficult generation air-resistance phenomenon and fuel-injection pump and kill phenomenon, help motor and start smoothly next time.
This device is suitable for dimethyl ether and diesel dual-fuel system engine, and motor is changed not quite, and simple in structure, easy and simple to handle, maintenance and maintenance expenses are low, is suitable for very much the conventional diesel engine transformation and uses Economy and obvious social benefit.
Claims (1)
1. duel fuel engine fuel system control gear, it is characterized in that dimethyl ether basin (2), dimethyl ether strainer (9), dimethyl ether suction booster (8), dimethyl ether secondary filter (7), fuel-injection pump oil-feed electronic control switch (6), fuel-injection pump (12) and motor (13) are composed in series the dimethyl ether oil supply system successively, diesel storing (1), diesel oil strainer (3), diesel oil transfer pump (4), diesel oil secondary filter (5), fuel-injection pump oil-feed electronic control switch (6), fuel-injection pump (12) and motor (13) are composed in series the diesel oil oil supply system successively, fuel-injection pump oil return electronic control switch (11) is positioned on the return line of fuel-injection pump (12) and with dimethyl ether basin (2) and is connected, and fuel injector oil return electronic control switch (14) is positioned on the return line of motor (13) and is connected with dimethyl ether basin (2), and diesel oil oil return electronic control switch (10) is positioned on the return line of diesel oil oil transfer pump (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200782893U CN201687585U (en) | 2009-07-15 | 2009-07-15 | Fuel system controller of dual-fuel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200782893U CN201687585U (en) | 2009-07-15 | 2009-07-15 | Fuel system controller of dual-fuel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201687585U true CN201687585U (en) | 2010-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2009200782893U Expired - Fee Related CN201687585U (en) | 2009-07-15 | 2009-07-15 | Fuel system controller of dual-fuel engine |
Country Status (1)
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| CN (1) | CN201687585U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305137A (en) * | 2011-08-11 | 2012-01-04 | 无锡市康威环能设备有限公司 | Light/heavy oil conversion device for oil supply system |
| CN102562392A (en) * | 2012-02-28 | 2012-07-11 | 浙江大学 | Diesel and dimethyl ether online mixing oil supply system |
| CN102588135A (en) * | 2012-03-09 | 2012-07-18 | 北京工业大学 | Device for improving performance of ignition type internal combustion engine with dimethyl ether and control method |
| WO2017029938A1 (en) * | 2015-08-17 | 2017-02-23 | 株式会社デンソー | Fuel supply system |
| WO2018210461A1 (en) * | 2017-05-15 | 2018-11-22 | Man Diesel & Turbo Se | Method for operating a dual-fuel engine, and dual-fuel engine |
-
2009
- 2009-07-15 CN CN2009200782893U patent/CN201687585U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305137A (en) * | 2011-08-11 | 2012-01-04 | 无锡市康威环能设备有限公司 | Light/heavy oil conversion device for oil supply system |
| CN102562392A (en) * | 2012-02-28 | 2012-07-11 | 浙江大学 | Diesel and dimethyl ether online mixing oil supply system |
| CN102562392B (en) * | 2012-02-28 | 2014-05-21 | 浙江大学 | Diesel and dimethyl ether online mixing oil supply system |
| CN102588135A (en) * | 2012-03-09 | 2012-07-18 | 北京工业大学 | Device for improving performance of ignition type internal combustion engine with dimethyl ether and control method |
| WO2017029938A1 (en) * | 2015-08-17 | 2017-02-23 | 株式会社デンソー | Fuel supply system |
| CN107923351A (en) * | 2015-08-17 | 2018-04-17 | 株式会社电装 | Fuel feed system |
| DE112016003764T5 (en) | 2015-08-17 | 2018-05-03 | Denso Corporation | Fuel Supply System |
| CN107923351B (en) * | 2015-08-17 | 2020-08-18 | 株式会社电装 | Fuel supply system |
| WO2018210461A1 (en) * | 2017-05-15 | 2018-11-22 | Man Diesel & Turbo Se | Method for operating a dual-fuel engine, and dual-fuel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20170715 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |