CN202611871U - Fuel feeding control system of multi-fuel multi-track engine - Google Patents

Fuel feeding control system of multi-fuel multi-track engine Download PDF

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Publication number
CN202611871U
CN202611871U CN2012200638930U CN201220063893U CN202611871U CN 202611871 U CN202611871 U CN 202611871U CN 2012200638930 U CN2012200638930 U CN 2012200638930U CN 201220063893 U CN201220063893 U CN 201220063893U CN 202611871 U CN202611871 U CN 202611871U
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fuel
fuel supply
supply unit
unit
injection
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胡永军
周立和
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/30Use of alternative fuels, e.g. biofuels
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/40Engine management systems

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  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

The utility model discloses a fuel feeding control system of a multi-fuel multi-track engine. The system comprises a fuel supply unit, an electronic control unit (ECU), a fuel injection unit and a sensor assembly, wherein a signal of the ECU controls the fuel to enter the engine through the fuel injection unit, the sensor assembly feeds back parameters of the operating state of the engine and the burning state of the fuel to the ECU, the ECU controls connection and disconnection of a fuel channel and the injection time through an algorithm, at least two types of fuel control processing performers, and the fuel supply unit comprises at least a first fuel supply unit and a second fuel supply unit; and the second fuel supply unit comprises a liquid fuel supply unit and a gas fuel supply unit, and the liquid fuel supply unit and the gas fuel supply unit are arranged in parallel. According to the system, the converting and utilization of various types of fuels in the same fuel supply system are achieved, other fuel systems are not required to be replaced, materials are saved, and the switching is stable.

Description

Many fuel multiple formula engine fuel supply control system
Technical field
The utility model relates to the engine fuel supply field, relates in particular to a kind of many fuel multiple formula engine fuel supply control system.
Background technique
Along with the minimizing of automobile supply and the raising of price thereof, the demand of alternative fuel and bunkering is increasing, and the alternative fuel and the bunkering method that are applied to automobile become more and more attractive.On the market, vehicle is driven by fuel oil mostly, i.e. gasoline or diesel oil, and the defective of this quasi-tradition fuel is energy shortage and environmental pollution.Energy shortage has directly restricted developing of automobile industry, and the fuel of seeking a kind of alternative traditional fuel oil becomes common recognition gradually.
In order to have alleviated energy shortage; Reduced exhaust emissions; Automotive fuel gradually adopts liquid fuel and gaseous fuel to drive, and like rock gas, liquid gas, methyl alcohol, ethanol etc., appearing at of alternative fuel alleviated energy shortage to a certain extent and reduced exhaust emissions.In order to realize the use of alternative fuel on automobile; Produced the motor bifuel system in the automobile industry, double fuel has two to overlap independently system usually, and its defective is that fuel oil and liquid fuel or fuel oil and gaseous fuel can not exist on the same vehicle simultaneously; And fuel injection system is confined to fuel oil and alternative fuel; The development space of this other alternative fuel of bifuel system structural constraint, and the utilization ratio of alternative fuel is not high, thus influenced the efficient of motor.
The model utility content
The technical problem that the utility model will solve is; Pluralities of fuel to engine fuel supply system in the existing technology can not be present in the same system simultaneously, and fuel injection system only is confined to the dual-fuel defective, and a kind of many fuel multiple formula engine fuel supply system is provided; Having solved the conversion of pluralities of fuel in same vehicle system uses; Need not change other fuel system, save material, switch steadily.
The utility model solves the technological scheme that its technical problem adopted: construct a kind of many fuel multiple formula engine fuel supply control system, comprise fuel supply unit, control unit ECU, fuel injection unit and sensor cluster; The fuel that said control unit ECU SC sigmal control is built in the said fuel supply unit gets into motor via said fuel injection unit; Sensor cluster feeds back to said control unit ECU in real time with the status parameter monitoring of engine operating status and fuel; Said control unit ECU is through through and off, the fuel injection time of algorithm s operation control fuel channel; Said fuel supply unit comprises first fuel supply unit and second fuel supply unit at least, said first fuel supply unit supplies gasoline or the diesel oil; Said second fuel supply unit supply fluid fuel or the gaseous fuel, said second fuel supply unit comprises liquid fuel feeding unit and gaseous fuel feeding unit, said liquid fuel feeding unit and said gaseous fuel feeding unit are parallel to be provided with; Said fuel injection unit comprises at least: first injection unit, for the gasoline or the diesel oil that spray from said first fuel supply unit; Second injection unit is for the liquid fuel that sprays from said second fuel supply unit; The 3rd injection unit is for the gaseous fuel that sprays from said second fuel supply unit.
The utility model provides a kind of many fuel multiple formula engine fuel supply control system; Preferably; Be built-in with two or more fuel information control processing final controlling element at least among the said control unit ECU, control liquid fuel and gaseous fuel respectively from the gasoline of said first fuel supply unit or diesel oil, said second fuel supply unit.
The utility model provides a kind of many fuel multiple formula engine fuel supply control system; Preferably; Said first fuel supply unit comprises first fuel tank, petrolift, level meter, the transferring oil rail of said first fuel tank of connection to said first injection unit and first solenoid valve of control oil channel break-make, and the Push And Release of said first solenoid valve is controlled by said control unit ECU; The delivery conduit that said second fuel supply unit comprises second fuel tank, liquid electromagnetic valve, gas solenoid valve, inflating pump or petrolift, level meter and is communicated with said second fuel tank to said fuel injection unit; Offer liquid filling mouth and gas filler on said second fuel tank; The parallel back of the gas channel that fluid path that said liquid electromagnetic valve, said inflating pump constitute and said gas solenoid valve constitute imports said delivery conduit, and the Push And Release of said liquid electromagnetic valve and said gas solenoid valve is controlled by said control unit ECU.
The utility model provides a kind of many fuel multiple formula engine fuel supply control system; Preferably; When in said second fuel tank during servicing fluids fluid fuel; Said liquid electromagnetic valve and said inflating pump or petrolift are opened, and said gas solenoid valve is closed, and said liquid fuel gets into said delivery conduit under the driving of said inflating pump or petrolift; When annotating gaseous fuel in said second fuel tank, said liquid electromagnetic valve and said inflating pump or petrolift are closed, and said gas solenoid valve is opened, and said gaseous fuel gets into said delivery conduit.
The utility model provides a kind of many fuel multiple formula engine fuel supply control system; Preferably, said injection unit also comprises: the said injection apparatus of solenoid valve, injection apparatus, fuel pipe, connection of oil circuit through and off and the intake manifold or the fuel combination chamber of motor are sprayed in control.
The utility model provides a kind of many fuel multiple formula engine fuel supply control system, and preferred, said sensor cluster comprises temperature transducer, pressure transducer, speed probe, oxygen sensor, timer and flow transducer.
The utility model can reach following beneficial effect: through built-in two or more fuel information control processing device at least of control unit ECU, thereby realize different fuel shared same control system on same car.First fuel supply unit and second fuel supply unit are set simultaneously; First fuel supply unit provides main fuel gasoline or diesel oil; Second fuel supply unit provides auxiliary fuel; Second fuel supply unit comprises and parallel liquid fuel feeding unit and gaseous fuel feeding unit is set, thereby realizes that second fuel supply unit both can provide liquid fuel also gaseous fuel can be provided; Control the switching that realizes between the pluralities of fuel through control unit ECU, solved pluralities of fuel and used, need not change other fuel system, save material, switch steadily in the conversion of same engine fuel supply system.
Description of drawings
To combine accompanying drawing and embodiment that the utility model is described further below, in the accompanying drawing:
Fig. 1 is the structural representation of many fuel multiple formula engine fuel supply control system of providing of the utility model embodiment;
Fig. 2 is the structural representation of the main control unit ECU of many fuel multiple formula engine fuel supply control system of providing of the utility model embodiment;
Fig. 3 is the structural representation of second fuel supply unit of many fuel multiple formula engine fuel supply control system of providing of the utility model embodiment;
Fig. 4 is the schematic flow sheet one of the controlling method of many fuel multiple formula engine fuel supply control system of providing of the utility model embodiment;
Fig. 5 is the schematic flow sheet two of the controlling method of many fuel multiple formula engine fuel supply control system of providing of the utility model embodiment;
Fig. 6 is the schematic flow sheet three of the controlling method of many fuel multiple formula engine fuel supply control system of providing of the utility model embodiment;
The drawing reference numeral explanation:
Figure DEST_PATH_GDA00002113953100041
Embodiment
Understand for technical characteristics, purpose and effect to the utility model have more clearly, contrast the embodiment that accompanying drawing specifies the utility model at present.
As shown in Figure 1; An embodiment for the utility model; A kind of many fuel multiple formula engine fuel supply control system comprises fuel supply unit, control unit ECU (Electronic Control Unit) 1, fuel injection unit 5 and sensor cluster.The system principle of many fuel multiple formula engine fuel supply control system that the utility model provides is: the fuel that control unit ECU1 SC sigmal control is built in the fuel supply unit gets in the motor 6 via fuel injection unit 5; Control unit ECU1 accepts the sensor cluster engine operating status monitoring parameter information of feedback in real time; Through through and off, the fuel injection time of algorithm s operation control fuel channel, fuel channel is two or more here.As shown in Figure 1; Fuel supply unit comprises first fuel supply unit 3 and second fuel supply unit 4, the first fuel supply units, 3 supplies gasoline or the diesel oil at least, and gasoline or diesel oil are the main fuel of motor; Be appreciated that main fuel also can be other oils and alternative fuel commonly used.In order to realize the pluralities of fuel supply, second fuel supply unit 4 can supply fluid fuel or gaseous fuel, and as shown in Figure 1, second fuel supply unit 4 comprises liquid fuel feeding unit and gaseous fuel feeding unit, the parallel setting; When supply fluid fuel, fuel gas passage is closed; When supply gas fuel, liquid fuel is closed.Fuel injection unit 5 comprises at least: first injection unit 51, for the gasoline or the diesel oil that spray from first fuel supply unit 3; Second injection unit 52 is for the liquid fuel that sprays from second fuel supply unit 4; The 3rd injection unit 53 is for the gaseous fuel that sprays from second fuel supply unit 4.Be appreciated that fuel injection unit 5 can also comprise the 4th, the 5th ... The N injection unit, the quantity of injection unit is consistent with the kind quantity of fuel here.
On the basis of technique scheme; As preferably; As shown in Figure 2; Built-in two or more fuel information control processing final controlling element at least of control unit ECU1, that is: first fuel processor 11, second fuel processor 12, the 3rd fuel processor are controlled liquid fuel and gaseous fuel from the gasoline of first fuel supply unit 3 or diesel oil, second fuel supply unit 4 respectively.Being appreciated that among the control unit ECU1 can also the built-in the 4 ... The N fuel processor, the quantity of fuel processor is consistent with the kind quantity of fuel here.
Concrete; As shown in Figure 1; First fuel supply unit 3 comprises that the Push And Release of first solenoid valve, 34, the first solenoid valves 34 of transferring oil rail 33 and the control oil channel break-make of first fuel tank 31, petrolift 32, filter, level meter, connection first fuel tank 31 to first injection units 51 controlled by control unit ECU1.Behind the pressed by external force model selection liquid level monitor switch 2, thereby control unit ECU starts first fuel supply unit 3 and first injection unit 51 through opening first solenoid valve 34, petrolift 32, solenoid valve 55.Here, petrolift 32 can be positioned at first fuel tank, 31 inside, also can be positioned at the outside of first fuel tank 31.
On the basis of technique scheme; Concrete; As shown in Figure 3, second fuel supply unit 4 comprises second fuel tank 41, liquid electromagnetic valve 42, gas solenoid valve 44, inflating pump or petrolift 43, level meter and the delivery conduit 45 that is communicated with second fuel tank 41 to the fuel injection unit 5.Offer liquid filling mouth 46 and gas filler 47 on second fuel tank 41, thereby realize that second fuel tank 41 both can storaging liquid fuel, also can stored-gas fuel.As preferably, import delivery conduit 45 after the gas channel that fluid path that liquid electromagnetic valve 42, inflating pump 43 constitute and gas solenoid valve 44 constitute is parallel, liquid electromagnetic valve 42 is controlled by control unit ECU1 with the Push And Release of gas solenoid valve 44.Delivery conduit 45 has only one here, saves raw material, when in second fuel tank 41 during refuelling, does not need the independent installation delivery conduit, and is convenient and swift.Here, also directly using gases pressure bottle and other fuel tank system of second fuel tank.
On the basis of technique scheme; Further; Control unit ECU is according to sensor transmissions monitoring parameter start liquid passage or gas channel, and specific operation are: when in second fuel tank 41 during the servicing fluids fluid fuel, liquid electromagnetic valve 42 is opened with inflating pump or petrolift 43; Gas solenoid valve 44 is closed, and liquid fuel gets into delivery conduit 45 under the driving of inflating pump 43; When annotating gaseous fuel in second fuel tank 41, liquid electromagnetic valve 42 is closed with inflating pump or petrolift 43, and gas solenoid valve 44 is opened, and gaseous fuel gets into delivery conduit 45.
On the basis of technique scheme, as preferably, liquid fuel is an Aalcohols fuel, is appreciated that liquid fuel also can be other flammable liquids or alternative fuel here.As preferably, gaseous fuel is rock gas or liquid gas, is appreciated that gaseous fuel also can also be other inflammable gass or alternative fuel here.
On the basis of technique scheme, concrete, as shown in Figure 1, injection unit also comprises: the intake manifold 56 of solenoid valve 54, solenoid valve 55, injection apparatus, connection injection apparatus and the motor 6 of oil circuit through and off is sprayed in control.The through and off of solenoid valve 55 controls first injection unit 51, solenoid valve 54 is controlled second, third ... The N injection unit.A plurality of injection units converge in intake manifold or fuel combination chamber 56, get into then in the cylinder of motor 6.
Further; Sensor cluster comprises temperature transducer, pressure transducer, speed probe, oxygen sensor, timer and flow transducer, sends control unit ECU to the status parameter information of detection of engine 6 and cylinder fuel and with it.Control unit ECU links to each other with oxygen sensor; Thereby calculate the ratio of air and gaseous mixture; Oxygen sensor is controlled by closed-loop system; According to the oxygen concentration in the waste gas, oxygen sensor utilizes closed loop control to regulate air fuel ratio, to confirm air and the dense rare state of gaseous fuel proportions of ingredients.Move when motor is in closed loop mode, lambda sensor passes to control unit ECU with signal and accepts, and control unit ECU mixes according to engine operational conditions control air-alternative fuel, and revises existing mixing condition, maintains within the normal concentration.When motor is under the open loop mode operation; Control unit ECU keeps program setting; And the output signal of air inlet pressure sensor, speed probe and velocity transducer made a response, the situation that open loop mode of operation takes place is that startup, acceleration, brake, load, unlatching air-conditioning, temperature are low excessively, idle running, cell voltage etc.Variable when control unit ECU storage and RAM processing and storage vehicle run duration; It receives the signal from temperature transducer, speed probe, air inlet pressure sensor, oxygen sensor; And follow target gas and mix the fuel of recently controlling supply engine with vaporized fuel; Like the temperature stabilization of motor in setting value; Rotating speed just often, lambda sensor passes the signal to control unit ECU, by closed loop controller air and gaseous fuel mixture is modulated to satisfactory sloppy condition.Work as engine start, quicken, when load is big, be modulated to the big the optimum state of concentration, thereby make the fuel economy maximization, power performance is with former gasoline and diesel fuel basically identical.
On the basis of technique scheme, as preferably, when vehicle slided at the band shelves, control unit ECU1 was through solenoid valve shuts gas or liquid fuel, thereby improved fuel economy.
On the basis of technique scheme, as preferably, also comprise model selection liquid level monitor switch 2, and be connected to control unit ECU1; First fuel supply unit 3 or second fuel supply unit 4 can directly be opened/switched to model selection liquid level monitor switch 2, and show the level of fuel height.
On the basis of technique scheme, as preferably, control unit ECU1 is provided with USB communication interface 13, and said USB communication interface 13 links to each other with transferring ginseng software, control unit ECU1; The status parameter that shows motor 6 operating conditions and cylinder fuel through said accent ginseng software; Various performance parameters to motor are carried out real time data demonstration, data trend analysis and malfunction alarm; Control Parameter after the optimization can in real time, accurately send to control unit ECU1; Said control unit ECU1 receives that in real time status parameter and target component compare computing; And will optimize good target component and write storage, realize demarcating the online modification of Control Parameter, the acceptance of Control Parameter and transmission.Transfer ginseng software visualization interface operation simple, reliable, the interface regulated in Chinese, and the user regulates the interface is easily understood.
Based on above-mentioned supply system; Like Fig. 4, Fig. 5, shown in Figure 6; The utility model also provides a kind of controlling method of many fuel multiple formula engine fuel supply control system, and gasoline in first fuel supply unit 3 or diesel oil get in the motor 6 via transferring oil rail 33, first injection unit 51; Liquid fuel/gaseous fuel in second fuel supply unit 4 gets in the motor 6 via delivery conduit 45, second injection unit 52/ the 3rd injection unit 53.Sensor cluster monitoring engine 6 engine operating status parameter informations; Parameter information is sent to control unit ECU1; After motor 6 starts; When the engine operating status parameter reached the goal-setting control parameter value, control unit ECU1 realized the switching between first fuel supply unit 3 and second fuel supply unit 4 in good time; When engine operating status parameter rotating speed reached the highest setting value, control unit ECU1 switched to first fuel supply unit 3 with second fuel supply unit 4 in good time, guarantees the F-Zero of former set vehicle.The switching mode of flexibility can effectively prevent the motor shake, guarantee the stability of engine system, thereby vehicle can smooth-ride.
On the basis of technique scheme; As preferably; As shown in Figure 4, S1, S2 during model selection liquid level monitor switch ato unit, control unit ECU1 gives tacit consent to preferential execution in step S3 and opens first fuel supply unit 3; Fuel sprays into intake manifold or fuel combination chamber S4 through first injection unit, gets into S5 burning and ato unit in the cylinder.As motor 6 running state temperature, S6 when rotating speed reaches the goal-setting controlling value; Control unit ECU1 is through the parameter information of oxygen sensor, pressure transducer feedback; Open the second fuel supply unit S7 in good time, close first fuel supply unit 3 simultaneously in good time.
On the basis of technique scheme, as shown in Figure 3 as preferably, when second fuel supply unit 4 provided liquid fuel, control unit ECU1 closed gas channel and the 3rd injection unit 53 through gas 44 solenoid valves in good time; Through liquid electromagnetic valve 42, operation inflating pump or the fuel chambers 43 and second injection unit 52 are transformed into the liquid fuel operating mode.
Further, when second fuel supply unit 4 provided gaseous fuel, control unit ECU1 was through the liquid electromagnetic valve 42 in good time closing liquid passage and second injection units 52; Through gas solenoid valve 44; Move the 3rd injection unit 53, be transformed into the gaseous fuel operating mode, accomplish flexibility and switch.
On the basis of technique scheme; As shown in Figure 5, when first fuel supply unit 3 provide run out of gas the time S9, the fuel that control unit ECU1 gives tacit consent to second fuel supply unit 4 preferentially starts S7; Close simultaneously first injection unit and the first fuel supply unit S3 in good time; The flexibility switching mode can effectively prevent the motor shake in good time, the stability of the original system performance of assurance motor and the smooth running of vehicle.
On the basis of technique scheme; As preferably, as shown in Figure 6, S10 when first fuel supply unit, 3 supply diesel oil; Control unit ECU1 opens first fuel supply unit 3 and second fuel supply unit 4 simultaneously, at this moment main fuel and auxiliary fuel co-operation.Control unit ECU1 comes the fuel injection time of adjustment second fuel supply unit 4 in real time according to the spray regime information of motor 6 operating conditions and diesel oil.Diesel oil can remain injection in motor whole service process, the alternative fuel discharge time is regulated according to the spray regime information of engine demand energy or diesel oil.
Preferred, when first fuel supply unit, 3 supply diesel oil:
When second fuel and diesel oil property difference property were bigger, first fuel supply unit 3 and second fuel supply unit 4 were opened simultaneously, and the fuel that the diesel injection amount accounts for 10% to 20%, the second fuel supply unit 4 of total amount to be provided accounts for 80% to 90%.
The second fuel physical property and diesel oil is close or differentiation when little, first fuel supply unit 3 and second fuel supply unit 4 switch according to the general character of second fuel and diesel oil in good time.
The utility model provides a kind of many fuel multiple formula engine fuel supply control system and controlling method thereof, and its advantage is: many fuel economies are good; Engine performance improves; Reduce and change other Fuel Control System cost; The component that repeat when avoiding changing system; Can on gasoline and diesel-oil vehicle, install, and carry out different injection, more reasonable than bifuel system according to different fuel, the petrolift life-span is longer; Very stably by the main fuel pattern to auxiliary fuel mode switching or auxiliary fuel to the main fuel mode switching; Simple to operate, reliable, the interface regulated in Chinese, and the user regulates the interface is easily understood; The multiple fuel system component that install additional are few.
Combine accompanying drawing that the embodiment of the utility model is described above; But the utility model is not limited to above-mentioned embodiment, and above-mentioned embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under the enlightenment of the utility model; Not breaking away under the scope situation that the utility model aim and claim protect, also can make a lot of forms, these all belong within the protection of the utility model.

Claims (6)

1. the formula of fuel multiple more than kind engine fuel supply control system comprises fuel supply unit, control unit ECU (1), fuel injection unit (5) and sensor cluster; The fuel that said control unit ECU (1) SC sigmal control is built in the said fuel supply unit gets into motor (6) via said fuel injection unit (5); Sensor cluster feeds back to said control unit ECU (1) in real time with the status parameter monitoring of engine operating status and fuel; Said control unit ECU (1) is characterized in that through through and off, the fuel injection time of algorithm s operation control fuel channel:
Said fuel supply unit comprises first fuel supply unit (3) and second fuel supply unit (4), said first fuel supply unit (3) supplies gasoline or diesel oil at least; Said second fuel supply unit (4) supply fluid fuel or gaseous fuel; Said second fuel supply unit (4) comprises liquid fuel feeding unit and gaseous fuel feeding unit, and said liquid fuel feeding unit and said gaseous fuel feeding unit are parallel to be provided with;
Said fuel injection unit (5) comprises at least: first injection unit (51), for the gasoline or the diesel oil that spray from said first fuel supply unit (3); Second injection unit (52) is for the liquid fuel that sprays from said second fuel supply unit (4); The 3rd injection unit (53) is for the gaseous fuel that sprays from said second fuel supply unit (4).
2. many fuel multiple formula engine fuel supply control system according to claim 1; It is characterized in that; Be built-in with two or more fuel information control processing final controlling element at least among the said control unit ECU (1), control liquid fuel and gaseous fuel respectively from the gasoline of said first fuel supply unit (3) or diesel oil, said second fuel supply unit (4).
3. many fuel multiple formula engine fuel supply control system according to claim 2 is characterized in that,
Said first fuel supply unit (3) comprises first fuel tank (31), petrolift (32), level meter, the transferring oil rail (33) of said first fuel tank of connection (31) to said first injection unit (51) and first solenoid valve (34) of control oil channel break-make, and the Push And Release of said first solenoid valve (34) is controlled by said control unit ECU (1);
The delivery conduit (45) that said second fuel supply unit (4) comprises second fuel tank (41), liquid electromagnetic valve (42), gas solenoid valve (44), inflating pump or petrolift (43), level meter and is communicated with said second fuel tank (41) to said fuel injection unit (5); Offer liquid filling mouth (46) and gas filler (47) on said second fuel tank (41); The parallel back of the gas channel that fluid path that said liquid electromagnetic valve (42), said inflating pump (43) constitute and said gas solenoid valve (44) constitute imports said delivery conduit (45), and said liquid electromagnetic valve (42) is controlled by said control unit ECU (1) with the Push And Release of said gas solenoid valve (44).
4. many fuel multiple formula engine fuel supply control system according to claim 3; It is characterized in that; When in said second fuel tank (41) during the servicing fluids fluid fuel; Said liquid electromagnetic valve (42) is opened with said inflating pump or petrolift (43), and said gas solenoid valve (44) is closed, and said liquid fuel gets into said delivery conduit (45) under the driving of said inflating pump or petrolift (43);
When annotating gaseous fuel in said second fuel tank (41), said liquid electromagnetic valve (42) is closed with said inflating pump or petrolift (43), and said gas solenoid valve (44) is opened, and said gaseous fuel gets into said delivery conduit (45).
5. many fuel multiple formula engine fuel supply control system according to claim 1; It is characterized in that said injection unit also comprises: intake manifold or fuel combination chamber (56) of solenoid valve (54,55), injection apparatus, fuel pipe, the said injection apparatus of connection and the motor (6) of oil circuit through and off are sprayed in control.
6. many fuel multiple formula engine fuel supply control system according to claim 1; It is characterized in that said sensor cluster comprises temperature transducer, pressure transducer, speed probe, oxygen sensor, timer and flow transducer.
CN2012200638930U 2012-02-27 2012-02-27 Fuel feeding control system of multi-fuel multi-track engine Expired - Fee Related CN202611871U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102536477A (en) * 2012-02-27 2012-07-04 胡永军 Multi-fuel multi-rail type engine fuel supply control system and control method thereof
CN105822446A (en) * 2016-05-18 2016-08-03 叶明� Fuel oil control system applied to diesel cetane number testing machine
CN107850008A (en) * 2015-07-10 2018-03-27 通用电气公司 Bifuel system for combustion engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102536477A (en) * 2012-02-27 2012-07-04 胡永军 Multi-fuel multi-rail type engine fuel supply control system and control method thereof
CN102536477B (en) * 2012-02-27 2015-09-16 胡永军 Multi fuel multi-rail type engine fuel supply control system and controlling method
CN107850008A (en) * 2015-07-10 2018-03-27 通用电气公司 Bifuel system for combustion engine
CN105822446A (en) * 2016-05-18 2016-08-03 叶明� Fuel oil control system applied to diesel cetane number testing machine

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