CN105003344B - Motor vehicle diesel, alcohols dual fuel supply system - Google Patents
Motor vehicle diesel, alcohols dual fuel supply system Download PDFInfo
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- CN105003344B CN105003344B CN201510400903.3A CN201510400903A CN105003344B CN 105003344 B CN105003344 B CN 105003344B CN 201510400903 A CN201510400903 A CN 201510400903A CN 105003344 B CN105003344 B CN 105003344B
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- alcohols
- fuel
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- pressure
- control units
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- 239000000446 fuel Substances 0.000 title claims abstract description 129
- 150000001298 alcohols Chemical class 0.000 title claims abstract description 103
- 230000009977 dual effect Effects 0.000 title claims abstract description 20
- 239000002283 diesel fuel Substances 0.000 claims abstract description 86
- 238000003860 storage Methods 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000000523 sample Substances 0.000 claims abstract description 7
- 238000002347 injection Methods 0.000 claims description 21
- 239000007924 injection Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 7
- 239000002826 coolant Substances 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 235000010599 Verbascum thapsus Nutrition 0.000 claims description 2
- 244000178289 Verbascum thapsus Species 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000003993 interaction Effects 0.000 claims description 2
- 241000222712 Kinetoplastida Species 0.000 claims 1
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Output Control And Ontrol Of Special Type Engine (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The embodiment of the invention discloses a kind of motor vehicle diesel, alcohols dual fuel supply system, including：ECU control units；Switching switch；Diesel oil storage tank；Diesel pump；Fuel level sensor；First pressure valve；Diesel fuel filter；High-pressure pump；High pressure oil rail；Alcohols storage tank；Alcohols pumps；Liquid level sensor；Second pressure valve；Alcohols pipeline；Alcohols filter；Dual pressure sensor；Engine；Inlet manifold；Injector assembly；Oil return line；Temperature sensor；Air inlet pressure sensor；Speed probe；Lambda sensor.The embodiment of the present invention, ECU control units control diesel pump, alcohols pump and diesel oil, alcohols double fuel integral type injector according to received signal, and the selection switching for being suitable for diesel fuel and Aalcohols fuel is used or is used in mixed way.
Description
Technical field：
The present invention relates to a kind of Double-fuel feed system, especially a kind of motor vehicle diesel and alcohols double fuel supply system
System.
Background technology：
Turn with to vehicle economy and alternative fuel economy, the concern of the feature of environmental protection, automaker and Market for refitting
To more economical, Cleaning Equipment, to improve efficiency and energy conservation and environmental protection, so alternative fuel or dual-purpose fuel or pluralities of fuel
Effectively use, it is necessary to the distinct configuration of traditional fuel engine components.
Switch use to adapt to the selection of multi fuel or double fuel, the multi fuel or double fuel of repacking or production are economic and environment-friendly
Automobile, need to provide a set of control system that can realize Double-fuel supply, and the present invention is exactly therefore to be formed.
The content of the invention：
Use or be used in mixed way to adapt to the selection of multi fuel or double fuel switching, an embodiment of the present invention provides a kind of vapour
Car diesel oil, alcohols dual fuel supply system.
A kind of motor vehicle diesel, alcohols dual fuel supply system, including：
ECU control units；
Switching switch, is connected with ECU control units, for providing Fuel switching signal to ECU control units and being used for
The liquid level signal of the Aalcohols fuel obtained according to ECU control units shows the liquid level of Aalcohols fuel；
Diesel oil storage tank, for storing diesel oil；
Diesel pump, in diesel oil storage tank, its signal input part is electrically connected with the output terminal of ECU control units, is controlled by ECU
Unit control processed；
Fuel level sensor, in diesel oil storage tank, for obtaining the oil level signal in diesel oil storage tank and being sent to ECU controls
Unit；
First pressure valve, in diesel oil storage tank, it is connected with the output terminal of diesel pump；
Diesel fuel filter, is connected with first pressure valve, for being filtered to diesel oil；
High-pressure pump, is connected with diesel fuel filter, its signal input part is electrically connected with the output terminal of ECU control units, is used for
Pressurized treatment is carried out to diesel oil under the control of ECU control units；
High pressure oil rail, is connected with the output terminal of high-pressure pump；
Alcohols storage tank, for storing Aalcohols fuel；
Alcohols pumps, if in alcohols storage tank, its signal input part is electrically connected with the output terminal of ECU control units, is controlled by ECU
Unit controls；
Liquid level sensor, in alcohols storage tank, the liquid level signal for obtaining the Aalcohols fuel in alcohols storage tank is concurrent
Send to ECU control units；
Second pressure valve, in alcohols storage tank, it is connected with the output terminal of alcohols pump；
Alcohols pipeline, its one end are connected with second pressure valve；
Alcohols filter, it is arranged on alcohols pipeline, for being filtered to Aalcohols fuel；
Dual pressure sensor, on alcohols pipeline, including pressure sensor and pressure switch, pressure sensor are used to obtain
Take the pressure signal of alcohols pipeline and send to ECU control units；Pressure switch is used to be less than setting value in alcohols loine pressure
When send a signal to ECU control units and under the control of ECU control units disconnect alcohols pipeline；
Engine；
Inlet manifold, is connected with the cylinder of engine；
Injector assembly, it includes diesel oil, alcohols double fuel integral type injector, itself and high pressure oil rail and alcohols pipeline
Other end connection, its signal input part is electrically connected with the output terminal of ECU control units, according to the control of ECU control units letter
Number, diesel oil or Aalcohols fuel selection injection or mixing jetting are entered into engine；
Oil return line, is connected between diesel oil, alcohols double fuel integral type injector and diesel oil storage tank；
Temperature sensor, for obtain engine temperature signal or engine coolant temperature signal and send to ECU control
Unit processed；
Air inlet pressure sensor, the mixed pressure force signal for obtaining in inlet manifold are concurrently sent to ECU control units；
Speed probe, for obtaining the tach signal of engine and sending to ECU control units；
Lambda sensor, for obtaining the oxygen content signal in exhaust pipe and sending to ECU control units；
Reach setting value in the temperature signal or engine coolant temperature signal of the engine that the temperature sensor obtains
When, ECU control units control alcohols pump and injector assembly open Aalcohols fuel supply engine, engine with Aalcohols fuel
It is dynamic；
Engine is driven in operation process with Aalcohols fuel, in the pressure letter for the alcohols pipeline that the pressure sensor obtains
When number being less than setting value, the pressure switch disconnects alcohols pipeline, and ECU control units close alcohols and pump and control diesel pump and spray
Emitter assembly operates diesel fuel supply engine, engine with diesel fuel powered；
Engine with Aalcohols fuel drive operation process in, the speed probe obtain engine rotational speed signal,
And the mixed pressure force signal in the inlet manifold that obtains of air inlet pressure sensor, when reaching setting value, ECU control units are closed
Alcohols is closed to pump and control diesel pump and injector assembly transports diesel fuel supply engine, engine with diesel fuel powered
Turn.
The embodiment of the present invention, ECU control units control diesel pump, alcohols pump and diesel oil, alcohols according to received signal
Double fuel integral type injector, the selection switching for being suitable for diesel fuel and Aalcohols fuel are used or are used in mixed way.
Brief description of the drawings：
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, other can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the motor vehicle diesel of the present invention, the structure diagram of alcohols dual fuel supply system；
Fig. 2 is the motor vehicle diesel of the present invention, the structure cut-away view of alcohols double fuel integral type injector.
Embodiment：
In order to which technical problem, technical solution and beneficial effect solved by the invention is more clearly understood, below in conjunction with
Accompanying drawings and embodiments, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
As shown in Figure 1, a kind of motor vehicle diesel, alcohols dual fuel supply system, including：
ECU control units 801；
Switching switch 802, is connected with ECU control units 801, for providing Fuel switching letter to ECU control units 801
Number and the Aalcohols fuel for being obtained according to ECU control units 801 liquid level signal show Aalcohols fuel liquid level；
Diesel oil storage tank 803, for storing diesel oil；
Diesel pump 8031, in diesel oil storage tank 803, its signal input part and the output terminal of ECU control units 801 are electrically connected
Connect, controlled by ECU control units 801；
Fuel level sensor 8032, it is concurrent for obtaining the oil level signal in diesel oil storage tank 803 in diesel oil storage tank 803
Give ECU control units 801；
First pressure valve 8033, in diesel oil storage tank 803, it is connected with the output terminal of diesel pump 8031；
Diesel fuel filter 8041, is connected with first pressure valve 8033, for being filtered to diesel oil；
High-pressure pump 8042, is connected with diesel fuel filter 8041, its signal input part and the output terminal of ECU control units 801
It is electrically connected, for carrying out pressurized treatment to diesel oil under the control of ECU control units 801；
High pressure oil rail 8043, is connected with the output terminal of high-pressure pump 8042；
Alcohols storage tank 805, for storing Aalcohols fuel；
Alcohols pump 8051, if in alcohols storage tank 8805, its signal input part and the output terminal of ECU control units 801 are electrically connected
Connect, controlled by ECU control units 801；
Liquid level sensor 8052, in alcohols storage tank 805, for obtaining the liquid of the Aalcohols fuel in alcohols storage tank 805
Position signal is simultaneously sent to ECU control units 801；
Second pressure valve 8053, in alcohols storage tank 805, it is connected with the output terminal of alcohols pump 8051；
Alcohols pipeline 806, its one end are connected with second pressure valve 8053；
Alcohols filter 8061, it is arranged on alcohols pipeline 806, for being filtered to Aalcohols fuel；
Dual pressure sensor 8063, on alcohols pipeline 806, including pressure sensor and pressure switch, pressure sensing
Device is used for the pressure signal for obtaining alcohols pipeline 806 and sends to ECU control units 801；Pressure switch is used in alcohols pipeline
806 pressure send a signal to ECU control units 801 and disconnect alcohol under the control of ECU control units 801 when being less than setting value
Class pipeline 806；
Engine 807；
Inlet manifold 808, is connected with the cylinder of engine 807；
Injector assembly 809, it includes diesel oil, alcohols double fuel integral type injector, its with high pressure oil rail 8043 and
The other end connection of alcohols pipeline 806, its signal input part are electrically connected with the output terminal of ECU control units 801, are controlled according to ECU
The control signal of unit 801 processed, enters engine 807 by diesel oil or Aalcohols fuel selection injection or mixing jetting；
Oil return line 8044, is connected between diesel oil, alcohols double fuel integral type injector and diesel oil storage tank 803；
Temperature sensor 810, for obtain engine 807 temperature signal or engine coolant temperature signal and send extremely
ECU control units 801；
Air inlet pressure sensor 811, the mixed pressure force signal for obtaining in inlet manifold 808, which is concurrently sent to ECU, to be controlled
Unit 801 processed；
Speed probe 812, for obtaining the tach signal of engine 807 and sending to ECU control units 801；
Lambda sensor 813, for obtaining the oxygen content signal in exhaust pipe and sending to ECU control units 801；
Reach in the temperature signal or engine coolant temperature signal of the engine 807 that the temperature sensor 810 obtains
During setting value, ECU control units 801 control alcohols pump 8051 and total 809 one-tenth of injector by Aalcohols fuel supply engine 807,
Engine 807 is started with Aalcohols fuel；
Engine 807 is driven in operation process with Aalcohols fuel, in the alcohols pipeline 806 that the pressure sensor obtains
When pressure signal is less than setting value, the pressure switch disconnects alcohols pipeline 806, and ECU control units 801 close alcohols pump 8051
And diesel pump 8031 and injector assembly 809 is controlled to drive diesel fuel supply engine 807, engine 807 with diesel fuel
Dynamic operating；
Engine 807 is driven in operation process with Aalcohols fuel, in the engine speed that the speed probe 812 obtains
When the mixed pressure force signal in inlet manifold 808 that signal and air inlet pressure sensor 811 obtain reaches setting value, ECU
Control unit 801 closes alcohols pump 8051 and controls diesel pump 8031 and total 808 one-tenth of injector by diesel fuel supply engine
807, engine 807 is operated with diesel fuel powered.
The embodiment of the present invention, ECU control units control diesel pump, alcohols pump and diesel oil, alcohol according to received signal
Class double fuel integral type injector, the selection switching for being suitable for diesel fuel and Aalcohols fuel are used or are used in mixed way.
Further, the diesel oil, alcohols double fuel integral type injector are installed in inlet manifold 808 or start
In the cylinder head of machine 807.
Yet further, the alcohols pipeline 806 is equipped with heating unit 8062, which is used in alcohols
Aalcohols fuel in pipeline 806 preheats Aalcohols fuel when being less than environment temperature.
Further, as shown in Fig. 2, the diesel oil, alcohols double fuel integral type injector, including injector body,
The injector body is equipped with：
Diesel fuel entrance 11, for being connected with the high pressure oil rail 8043；
Aalcohols fuel entrance 12, for being connected with the alcohols pipeline 806；
Fuel ejiction opening 2；
First passage, connects with diesel fuel entrance 11 and fuel ejiction opening 2, is set successively from top to bottom in the first passage
There are interconnected the first valve chamber 30, first pressure room 31 and second pressure room 32；The diesel fuel entrance 11 and first
Balancing gate pit 31 is connected with second pressure room 32；The second pressure room 32 is connected with fuel ejiction opening 2；
Second channel, connects with Aalcohols fuel entrance 12 and fuel ejiction opening 2, and the upper position of the second channel is equipped with the
Two valve chambers 42；
Oil return opening 13, connects with first valve chamber 30, is connected by the oil return line 8044 and the diesel oil storage tank 803
Connect；
Oil return control valve, in the first valve chamber 30, for controlling first pressure room 31 under the control of ECU control units
Connection with oil return opening 13 or cut-off are to adjust the pressure size of first pressure room 31；
Diesel fuel injection control needle-valve 51, in first passage and is located at first pressure room 31 and fuel ejiction opening 2
Between, the upper end is arranged with the first elastic component 52, and it is equipped with and opposite with second pressure room 32 is pressurized by small gradually big taper
Portion, for according to the interaction force between second pressure room 32, the first elastic component 52 and first pressure room 31 move up and down with
Control second pressure room 32 and the connection or cut-off of fuel ejiction opening 2；
Aalcohols fuel injection control valve, arranged on the second valve chamber 42, for controlling the second valve under the control of ECU control units
The connection or cut-off of chamber 42 and fuel ejiction opening 2.
Diesel oil, the alcohols double fuel integral type injector of the embodiment of the present invention, its is simple in structure, easy for installation, can pass through
The injection control of diesel fuel is realized in oil return control valve and the cooperation of diesel fuel injection control needle-valve, or is sprayed by Aalcohols fuel
The injection control that control valve realizes Aalcohols fuel is penetrated, smooth can be switched between different fuel；Secondly, it can directly replace former car
Injector is simultaneously installed on former car injector position, can reach optimal spray angle, reduces oil consumption；In addition, it will not produce
Oil generation film deposits and covering.
Further, the fuel ejiction opening 2 includes the first ejiction opening 21 and the second ejiction opening 22, and first sprays
Mouth 21 is connected with second pressure room 32, and the second ejiction opening 22 is connected with the second valve chamber 42, the first ejiction opening 21 and the second ejiction opening
22 are parallel to each other, and injection direction is identical.Simple in structure, whether diesel fuel or Aalcohols fuel, can reach optimal
Spray angle, reduce oil consumption.
Specifically, the oil return control valve includes：
I-shaped coil brace 61, is equipped with downward opening socket guide part at its longitudinal axis center, its circumferential exterior surface is opened
Equipped with annular groove；
First electromagnetic coil 62, on the annular groove of I-shaped coil brace 61；
First mobile 63, its one end are socketed in the socket guide part of the I-shaped coil brace 61 and can be along sockets
Guide part moves up and down；
Ball valve 64, is connected with the other end of the first mobile 63 and is located between the first valve chamber 30 and first pressure room 31
Be interconnected place；
Second elastic component 65, in the socket guide part of the I-shaped coil brace 61 and with the first mobile 63
Offset；
When first electromagnetic coil 62 is powered, the magnetic force that the energization of the first electromagnetic coil 62 produces drives the first mobile 63
Overcome the active force of the second elastic component 65 to be moved up along socket guide part, ball valve 64 is followed the first mobile 63 from bottom to top
The interconnected place being moved out between the first valve chamber 30 and first pressure room 31, at this time oil return opening 13 and first pressure room 31
Connection, first pressure room 31 reduce the pressure of first pressure room 31 by 13 pressure release of oil return opening, at this time, second pressure room 32
Pressure promote diesel fuel injection control needle-valve 51 overcome the elastic force of the first elastic component 52 and the pressure of first pressure room 31 to
Upper movement, makes second pressure room 32 be connected with the first ejiction opening 21, realizes that diesel fuel sprays；First electromagnetic coil 62 is disconnected
When electric, the first mobile 63 the second elastic component 65 reset response power lower edge socket guide part move down, make ball valve 64 with
Moved from top to bottom with the first mobile 63 and tight against the interconnected place between the first valve chamber 30 and first pressure room 31, at this time
Oil return opening 13 and 31 phase of first pressure room are ended, the pressure of first pressure room 31 is increased gradually until with 32 phase of second pressure room
Deng, at this time, diesel fuel injection control needle-valve 51 moved down under the active force of the first elastic component 52 and tight against first spray
Mouth 21, ends second pressure room 32 and 21 phase of the first ejiction opening, so as to stop diesel fuel injection.It is simple in structure, by right
The control of oil return control valve, can indirect control diesel fuel injection.
More specifically, the Aalcohols fuel injection control valve includes：
Valve seat 71, it is installed in the second valve chamber 42, and the valve seat is in T shape, has a located lateral portion and an opening
Socket guide part in longitudinal direction directed downwardly, wherein, the fuel deflector hole through itself, and fuel water conservancy diversion are offered in located lateral portion
Hole is positioned at the periphery of longitudinal direction socket guide part；
Second mobile 72, its one end are arranged in longitudinal direction socket guide part；
Second electromagnetic coil 73, arranged on the periphery of the second valve chamber 42, and it is opposite with the second mobile 72；
3rd elastic component 74, arranged on longitudinal direction socket guide part in, and respectively with the second mobile 72 and the transverse direction of valve seat 71
Location division offsets；
Needle-valve 75, is installed in the second valve chamber 42, and between the second mobile 72 and the second ejiction opening 22, it is with
The other end of two mobiles 72 is connected and can moved up and down；
When second electromagnetic coil 73 is powered, the magnetic force that the energization of the second electromagnetic coil 73 produces drives the second mobile 72
Overcome the active force of the 3rd elastic component 74 to be moved up along longitudinal direction socket guide part, needle-valve 75 is followed the second mobile 72 under
Moving up and depart from the connectivity part of the second valve chamber 42 and second channel, the second valve chamber 42 is connected with the second ejiction opening 22 at this time,
Realize the injection of Aalcohols fuel；When second electromagnetic coil 73 powers off, reset of second mobile 72 in the 3rd elastic component 74
Longitudinally socket guide part moves down active force lower edge, makes needle-valve 75 follow the second mobile 72 to move from top to bottom and tight against the
The connectivity part of two valve chambers 42 and second channel, the second valve chamber 42 ends with 22 phase of the second ejiction opening at this time, so as to stop alcohols combustion
The injection of material.It is simple in structure, it is stably controlled the injection of Aalcohols fuel.
Further, 2 periphery of Aalcohols fuel entrance 12 and fuel ejiction opening offers annular groove respectively, annular
Sealing ring is respectively equipped with groove.Simple in structure, connection sealing is good.
Yet further, filter screen is equipped with the Aalcohols fuel entrance 12.It is simple in structure, Aalcohols fuel can be carried out
Filter.
It is to combine one or more embodiments that particular content provides as described above, does not assert the specific reality of the present invention
Apply and be confined to these explanations.It is all approximate with method of the invention, structure etc., identical, or for present inventive concept under the premise of
Some technology deduction or replace are made, should all be considered as protection scope of the present invention.
Claims (9)
1. a kind of motor vehicle diesel, alcohols dual fuel supply system, it is characterised in that including：
ECU control units；
Switching switch, is connected with ECU control units, for providing Fuel switching signal and for basis to ECU control units
The liquid level signal for the Aalcohols fuel that ECU control units obtain shows the liquid level of Aalcohols fuel；
Diesel oil storage tank, for storing diesel oil；
Diesel pump, in diesel oil storage tank, its signal input part is electrically connected with the output terminal of ECU control units, is controlled by ECU single
Member control；
Fuel level sensor, it is single for obtaining the oil level signal in diesel oil storage tank and being sent to ECU controls in diesel oil storage tank
Member；
First pressure valve, in diesel oil storage tank, it is connected with the output terminal of diesel pump；
Diesel fuel filter, is connected with first pressure valve, for being filtered to diesel oil；
High-pressure pump, is connected with diesel fuel filter, its signal input part is electrically connected with the output terminal of ECU control units, in ECU
Pressurized treatment is carried out to diesel oil under the control of control unit；
High pressure oil rail, is connected with the output terminal of high-pressure pump；
Alcohols storage tank, for storing Aalcohols fuel；
Alcohols pumps, if in alcohols storage tank, its signal input part is electrically connected with the output terminal of ECU control units, by ECU control units
Control；
Liquid level sensor, in alcohols storage tank, for obtaining the liquid level signal of the Aalcohols fuel in alcohols storage tank and sending extremely
ECU control units；
Second pressure valve, in alcohols storage tank, it is connected with the output terminal of alcohols pump；
Alcohols pipeline, its one end are connected with second pressure valve；
Alcohols filter, it is arranged on alcohols pipeline, for being filtered to Aalcohols fuel；
Dual pressure sensor, on alcohols pipeline, including pressure sensor and pressure switch, pressure sensor are used to obtain alcohol
The pressure signal of class pipeline is simultaneously sent to ECU control units；Pressure switch is used for will when alcohols loine pressure is less than setting value
Signal is sent to ECU control units and alcohols pipeline is disconnected under the control of ECU control units；
Engine；
Inlet manifold, is connected with the cylinder of engine；
Injector assembly, it includes diesel oil, alcohols double fuel integral type injector, its with high pressure oil rail and alcohols pipeline it is another
One end connects, its signal input part is electrically connected with the output terminal of ECU control units, will according to the control signal of ECU control units
Diesel oil or Aalcohols fuel selection injection or mixing jetting enter engine；
Oil return line, is connected between diesel oil, alcohols double fuel integral type injector and diesel oil storage tank；
Temperature sensor, temperature signal or engine coolant temperature signal and sending to ECU for obtaining engine control single
Member；
Air inlet pressure sensor, the mixed pressure force signal for obtaining in inlet manifold are concurrently sent to ECU control units；
Speed probe, for obtaining the tach signal of engine and sending to ECU control units；
Lambda sensor, for obtaining the oxygen content signal in exhaust pipe and sending to ECU control units；
When the temperature signal or engine coolant temperature signal of the engine that the temperature sensor obtains reach setting value,
ECU control units control alcohols pump and injector assembly start Aalcohols fuel supply engine, engine with Aalcohols fuel；
Engine is driven in operation process with Aalcohols fuel, low in the pressure signal for the alcohols pipeline that the pressure sensor obtains
When setting value, the pressure switch disconnects alcohols pipeline, and ECU control units close alcohols and pump and control diesel pump and injector
Assembly operates diesel fuel supply engine, engine with diesel fuel powered；
Engine with Aalcohols fuel drive operation process in, the speed probe obtain engine rotational speed signal and
When the mixed pressure force signal in inlet manifold that air inlet pressure sensor obtains reaches setting value, ECU control units close alcohol
Class pumps and controls diesel pump and injector assembly operates diesel fuel supply engine, engine with diesel fuel powered.
2. motor vehicle diesel according to claim 1, alcohols dual fuel supply system, it is characterised in that the diesel oil, alcohols
Double fuel integral type injector is installed in inlet manifold or in the cylinder head of engine.
3. motor vehicle diesel according to claim 1 or 2, alcohols dual fuel supply system, it is characterised in that the alcohols pipe
Road is equipped with heating unit, to Aalcohols fuel when the Aalcohols fuel which is used in alcohols pipeline is less than environment temperature
Preheated.
4. motor vehicle diesel according to claim 3, alcohols dual fuel supply system, it is characterised in that the diesel oil, alcohols
Double fuel integral type injector, including injector body, the injector body are equipped with：
Diesel fuel entrance, for being connected with the high pressure oil rail；
Aalcohols fuel entrance, for being connected with the alcohols pipeline；
Fuel ejiction opening；
First passage, connects with diesel fuel entrance and fuel ejiction opening, is equipped with successively from top to bottom in the first passage mutual
The first valve chamber, first pressure room and the second pressure room of connection；The diesel fuel entrance and first pressure room and the second pressure
Power room connects；The second pressure room is connected with fuel ejiction opening；
Second channel, connects with Aalcohols fuel entrance and fuel ejiction opening, and the upper position of the second channel is equipped with the second valve chamber；
Oil return opening, connects with first valve chamber, is connected by the oil return line with the diesel oil storage tank；
Oil return control valve, in the first valve chamber, for controlling first pressure room and oil return opening under the control of ECU control units
Connection or cut-off to adjust the pressure size of first pressure room；
Diesel fuel injection control needle-valve, in first passage and between first pressure room and fuel ejiction opening, thereon
End cap is equipped with the first elastic component, and its be equipped with it is opposite with second pressure room by small gradually big taper compression zone, for according to the
Interaction force between two pressure chamber, the first elastic component and first pressure room is moved up and down to control second pressure room and fuel
The connection or cut-off of ejiction opening；
Aalcohols fuel injection control valve, arranged on the second valve chamber, for controlling the second valve chamber and combustion under the control of ECU control units
Expect the connection or cut-off of ejiction opening.
5. motor vehicle diesel according to claim 4, alcohols dual fuel supply system, it is characterised in that the fuel sprays
Mouth includes the first ejiction opening and the second ejiction opening, and the first ejiction opening is connected with second pressure room, the second ejiction opening and the second valve
Chamber connects, and the first ejiction opening and the second ejiction opening are parallel to each other, and injection direction is identical.
6. motor vehicle diesel according to claim 5, alcohols dual fuel supply system, it is characterised in that the oil return control
Valve includes：
I-shaped coil brace, is equipped with downward opening socket guide part at its longitudinal axis center, its circumferential exterior surface offers ring
Connected in star；
First electromagnetic coil, on the annular groove of I-shaped coil brace；
First mobile, its one end are socketed in the socket guide part of the I-shaped coil brace and can be along socket guide parts
Lower movement；
Ball valve, is connected with the other end of the first mobile and is located at the interconnected place between the first valve chamber and first pressure room；
Second elastic component, offsets in the socket guide part of the I-shaped coil brace and with the first mobile；
When first electromagnetic coil is powered, the magnetic force that the energization of the first electromagnetic coil produces drives the first mobile to overcome the second bullet
Property part active force along socket guide part move up, make ball valve follow the first mobile to be moved out the first valve from bottom to top
Interconnected place between chamber and first pressure room, at this time oil return opening connected with first pressure room, first pressure room passes through oil return
Mouth pressure release；During the first electromagnetic coil power-off, the first mobile is socketed in the reset response power lower edge of the second elastic component and is oriented to
Portion moves down, and makes ball valve follow the first mobile to move from top to bottom and tight against the phase between the first valve chamber and first pressure room
Intercommunicated place, at this time oil return opening mutually end with first pressure room.
7. motor vehicle diesel according to claim 6, alcohols dual fuel supply system, it is characterised in that the Aalcohols fuel
Injection control valve includes：
Valve seat, it is installed in the second valve chamber, and the valve seat is in T shape, downward opening vertical with a located lateral portion and one
To socket guide part, wherein, the fuel deflector hole through itself is offered in located lateral portion, and fuel deflector hole is positioned at vertical
To the periphery of socket guide part；
Second mobile, its one end are arranged in longitudinal direction socket guide part；
Second electromagnetic coil, arranged on the periphery of the second valve chamber, and it is opposite with the second mobile；
3rd elastic component, in longitudinal direction socket guide part, and the located lateral portion with the second mobile and valve seat offsets respectively；
Needle-valve, is installed in the second valve chamber, and between the second mobile and the second ejiction opening, it is another with the second mobile
One end connects and can move up and down；
When second electromagnetic coil is powered, the magnetic force that the energization of the second electromagnetic coil produces drives the second mobile to overcome the 3rd bullet
Property part active force moved up along longitudinal direction socket guide part, make needle-valve follow the second mobile to be moved out the from bottom to top
The connectivity part of two valve chambers and second channel, at this time the second valve chamber connected with the second ejiction opening；During the second electromagnetic coil power-off,
Second mobile is longitudinally socketed guide part in the reset response power lower edge of the 3rd elastic component and moves down, and needle-valve is followed the second work
Kinetoplast moves and tight against the connectivity part of the second valve chamber and second channel from top to bottom, and the second valve chamber and the second ejiction opening phase are cut at this time
Only.
8. motor vehicle diesel according to claim 7, alcohols dual fuel supply system, it is characterised in that the Aalcohols fuel
Entrance and fuel ejiction opening periphery offer annular groove respectively, and sealing ring is respectively equipped with annular groove.
9. motor vehicle diesel according to claim 8, alcohols dual fuel supply system, it is characterised in that the Aalcohols fuel
Inlet is equipped with filter screen.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510400903.3A CN105003344B (en) | 2015-07-09 | 2015-07-09 | Motor vehicle diesel, alcohols dual fuel supply system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510400903.3A CN105003344B (en) | 2015-07-09 | 2015-07-09 | Motor vehicle diesel, alcohols dual fuel supply system |
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| CN105003344A CN105003344A (en) | 2015-10-28 |
| CN105003344B true CN105003344B (en) | 2018-05-08 |
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| CN109630291A (en) * | 2018-11-02 | 2019-04-16 | 浙江吉利新能源商用车有限公司 | Dual fuel engine Fuel switching method, apparatus and electronic equipment |
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| CN101153563A (en) * | 2006-09-26 | 2008-04-02 | 天津农学院 | Oil supply controlling system for diesel engine burning vegetable oil and its oil supply method |
| JP2008075467A (en) * | 2006-09-19 | 2008-04-03 | Toyota Motor Corp | Fuel controller for internal combustion engine |
| CN102733944A (en) * | 2012-07-09 | 2012-10-17 | 湖南大学 | System and method for reducing emissions of nitric oxide and carbon smoke of diesel engine simultaneously |
| CN204877692U (en) * | 2015-07-09 | 2015-12-16 | 胡松平 | Car diesel oil, two fuel supply system of alcohols |
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| JP2008075467A (en) * | 2006-09-19 | 2008-04-03 | Toyota Motor Corp | Fuel controller for internal combustion engine |
| CN101153563A (en) * | 2006-09-26 | 2008-04-02 | 天津农学院 | Oil supply controlling system for diesel engine burning vegetable oil and its oil supply method |
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