CN106762271B - For the electronic control low-pressure fuel gauge of internal combustion engine - Google Patents
For the electronic control low-pressure fuel gauge of internal combustion engine Download PDFInfo
- Publication number
- CN106762271B CN106762271B CN201611226192.3A CN201611226192A CN106762271B CN 106762271 B CN106762271 B CN 106762271B CN 201611226192 A CN201611226192 A CN 201611226192A CN 106762271 B CN106762271 B CN 106762271B
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- fuel
- pressure
- electronic control
- valve
- electric controlled
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- 239000000446 fuel Substances 0.000 title claims abstract description 172
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 29
- 238000009434 installation Methods 0.000 claims abstract description 11
- 230000001050 lubricating effect Effects 0.000 claims description 12
- 239000002828 fuel tank Substances 0.000 claims description 10
- 238000005461 lubrication Methods 0.000 claims description 6
- 238000004445 quantitative analysis Methods 0.000 abstract description 2
- 239000002283 diesel fuel Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0023—Valves in the fuel supply and 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0023—Valves in the fuel supply and return system
- F02M37/0029—Pressure regulator in the low pressure fuel system
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The present invention provides a kind of electronic control low-pressure fuel gauge for internal combustion engine, pressure limiting valve (41) and electric controlled metering valve (42) are at least integrated on the meter housing (40) for being capable of plug-in installation, wherein, the fuel pressure that the pressure limiting valve (41) is used to will open into the passage of the electric controlled metering valve (42) is defined to below predetermined pressure, the electric controlled metering valve (42) is provided with fuel output port (25), the electric controlled metering valve controls fuel to be dosed into the fuel high pressure generating means of the internal combustion engine from the fuel output port (25) under the modulated in real time of control unit.The electronic control low-pressure fuel gauge of the present invention provides the low-pressure fuel of pressure stability for the fuel high pressure generating means accurate quantitative analysis of internal combustion engine, improve hydraulic stable, the design of fuel high pressure generating means is simplified simultaneously, improves the craftsmanship and reliability of fuel high pressure generating means.
Description
Technical field
The present invention relates to technical field of internal combustion engines more particularly to a kind of electronic control low-pressure fuel gauges for internal combustion engine.
Background technology
In existing internal-combustion engine technology, low-pressure fuel is conveyed to there are mainly three types of the patterns of fuel high pressure generating means.
A kind of is that the pumping function of itself suctions out fuel, such as single cylinder diesel from fuel tank by fuel high pressure generating means；Second
There is mechanical oil transfer pump to be synthesized in fuel high pressure generating means, such as the machinery synthesis pump of multi-cylinder diesel engine and automatically controlled combination of monomers
Pump etc.；The third is to meet pressure store using the quantity delivered that low-pressure fuel is controlled to give fuel high pressure generating means to realize
Pattern, such as Common-rail technology Multi-Cylinder Diesel Engine, be integrated on fuel high pressure generating means by electronic control unit modulation electrically-controlled valve and
Mechanical oil transfer pump or the plug-in electrically operated fuel pump in other positions in engine, this pattern realize accurate offer low-pressure fuel
The purpose of conveying.Although first two pattern realizes being actively supplied for fuel, but quantity delivered places one's entire reliance upon with rotation speed change
Hydraulic performance can not fully meet the precise requirements to low-pressure fuel conveying capacity and discharge pressure under different operating modes.The third type
Formula causes fuel high pressure generating means complicated, bulky, is limited on installation space and craftsmanship, while high
Low-pressure channel is crisscross, and reliability is more weak, while low-pressure fuel pressure transient, hydraulic stable are poor.
The content of the invention
It is an object of the invention to provide a kind of electronic control low-pressure fuel gauges for internal combustion engine.
For this purpose, the present invention may be employed but be not limited to following proposal.
A kind of electronic control low-pressure fuel gauge for internal combustion engine, wherein,
Pressure limiting valve and electric controlled metering valve are at least integrated on the meter housing of plug-in installation is capable of,
Wherein, the fuel pressure that the pressure limiting valve is used to will open into the passage of the electric controlled metering valve is defined to pre- level pressure
Below power,
The electric controlled metering valve is provided with fuel output port, and the electric controlled metering valve is controlled under the modulated in real time of control unit
Fuel processed is dosed into the fuel high pressure generating means of the internal combustion engine from the fuel output port.
Preferably, the electronic control low-pressure fuel gauge further includes fuel main channel, and the fuel main channel is used to receive
By oil transfer pump from the fuel tank of the internal combustion engine convey Lai fuel, the fuel main channel is communicated to the pressure limiting valve and the electricity
Control metering valve.
Preferably, the pressure limiting valve and the electric controlled metering valve are parallel to the fuel main channel, and the pressure limiting valve is set
There is relief hole, when the fuel pressure in the pressure limiting valve is more than predetermined pressure, fuel is by the relief hole via return flow line
It is discharged in the fuel tank of the internal combustion engine.
Preferably, the electric controlled metering valve is provided with chamber, and mobile first piston is provided in the chamber, described
Be provided with dip hatch in the skirt wall of first piston, the side wall of the side corresponding with the dip hatch of the chamber be provided with it is described
Fuel main channel connection the first fuel access aperture, adjusted by the reciprocating movement of the first piston first fuel into
Enter the overlapping degree in hole and the dip hatch.
Preferably, mobile second piston is provided in the pressure limiting valve, the relief hole is according to the second piston
Movement and be selectively opened and closed.
Preferably, the electronic control low-pressure fuel gauge is the independence of weight feed after the low-pressure fuel pressure limiting for carrying out conveying
Device, the meter housing are provided with fastening mounting hole, for the electronic control low-pressure fuel gauge to be mounted in described
On the body of combustion engine or the fuel high pressure generating means.
Preferably, the electronic control low-pressure fuel gauge further includes overflow valve, which is arranged at the automatically controlled meter
In the passage for the return flow line that the fuel output channel of amount valve is connected to the pressure limiting valve.
Preferably, the pressure limiting valve is additionally provided with normally opened spout hole, and the normally opened spout hole is used for the internal combustion engine
The lubricating system of fuel high pressure generating means provides lubrication fuel and/or the relief hole of the pressure limiting valve is communicated to institute
State the lubricating system of fuel high pressure generating means.
The electronic control low-pressure fuel gauge of the present invention can provide for the fuel high pressure generating means accurate quantitative analysis of internal combustion engine
The low-pressure fuel of pressure stability improves hydraulic stable, while can simplify the fuel high pressure hair of internal combustion engine to greatest extent
The design of generating apparatus improves the craftsmanship and reliability of fuel high pressure generating means.
Description of the drawings
Fig. 1 is the structure according to the electronic control low-pressure fuel gauge for single cylinder diesel of the first embodiment of the present invention
Schematic diagram；
Fig. 2 is being mounted on for the electronic control low-pressure fuel gauge of single cylinder diesel according to the first embodiment of the present invention
Stereogram on body；
Fig. 3 is the structure according to the electronic control low-pressure fuel gauge for multi-cylinder diesel engine of the second embodiment of the present invention
Schematic diagram；
Fig. 4 is being mounted on for the electronic control low-pressure fuel gauge of multi-cylinder diesel engine according to the second embodiment of the present invention
Stereogram on high-pressure pump.
Specific embodiment
The preferred embodiment of the present invention is further detailed with reference to the accompanying drawings.It will be appreciated, however, that these are said
It is bright to be only exemplary, it is not used in and limits the scope of the invention.
Fig. 1 is the structure according to the electronic control low-pressure fuel gauge for single cylinder diesel of the first embodiment of the present invention
Schematic diagram.As shown in Figure 1, the electronic control low-pressure fuel gauge of the present embodiment can include can plug-in installation meter housing
40th, the pressure limiting valve 41 that is arranged on meter housing 40 and it is arranged on meter housing 40 and is arranged in parallel with pressure limiting valve 41
Electric controlled metering valve 42.
As shown in Figure 1, diesel oil (is sometimes referred to as by the electrically operated fuel pump (not shown) that the single cylinder diesel is worn from internal combustion engine
For engine) fuel tank (not shown) be delivered to fuel inlet passage 21a on electronic control low-pressure fuel gauge, which enters
Passage 21a connects from fuel inlet passage 21a to input diesel oil to fuel with the fuel main channel 21 on meter housing 40
Main channel 21.Pressure limiting valve 41 and electric controlled metering valve 42, and the electric controlled metering valve 42 have been arranged in parallel on fuel main channel 21
The fuel main channel 21 is connected to by the first branched bottom 211 and the second branched bottom 212 respectively with pressure limiting valve 41.
In the present embodiment, the top of the electric controlled metering valve 42 is provided with chamber 26, and the first work is provided in the chamber 26
27 are filled in, dip hatch 422, the side wall with the 422 corresponding side of dip hatch of chamber 26 are provided in the skirt wall of the first piston 27
On be provided with the first fuel access aperture 24, which is connected to fuel master by the first branched bottom 211 and leads to
Road 21.In addition, the top of chamber 26 is provided with fuel output port 25, which is connected to output channel 21b and leads to
Output channel 21b is crossed to export diesel oil to fuel high pressure generating means (not shown).The bottom of chamber 26 is provided with support first
The mandril 421 being reciprocally moveable of piston 27, the opposite side of the 421 place side of mandril of first piston 27 are provided with to first piston
27 forces, so that the spring 29 that 422 and first fuel access aperture 24 of dip hatch staggers.
It should be appreciated that above and with reference to the accompanying drawings to the description in orientation (for example, " top " in epimere and " pushing up
Portion ") be only in order at the mesh for facilitating description and the explanation made, the installation side of 41 grade of electric controlled metering valve 42 of the invention and pressure limiting valve
To and relative position relation etc. be not limited to diagram in these descriptions and attached drawing (particularly Fig. 1 and 3).
According to the demand of real-time working condition, so that mandril under the modulation for the electronic control unit worn in the single cylinder diesel
421 drive first pistons 27 move back and forth, to adjust the relative position of 422 and first fuel access aperture 24 of dip hatch, from
And change size of the first fuel access aperture 24 on electric controlled metering valve 42 with 422 Chong Die aperture of dip hatch so that limitation pressure
Diesel oil self-overlapped part supplied to fuel high pressure and fill at regular time and quantity by output channel 21b through fuel output port 25
It puts.
In the present embodiment, the second fuel access aperture 22 is provided on the side wall of the chamber of pressure limiting valve 41, second fuel
Access aperture 22 is communicated by the second branched bottom 212 with fuel main channel 21, by diesel oil from fuel main channel 21 through second point
Subchannel 212 is inputted to pressure limiting valve 41.In addition, moveable second piston 31, the limit are provided in the chamber of the pressure limiting valve 41
The bottom of pressure valve 41 is provided with relief hole 23, which moves and be selectively opened according to second piston 31.It should
Relief hole 23 is connected to return flow line 21e, and passes through return flow line 21e and be back to the diesel oil in pressure limiting valve 41 through relief hole 23
The fuel tank of engine.Spring 30 is provided in the chamber of pressure limiting valve 41, spring 30 is towards the second fuel access aperture 22 to second
Piston 31 presses, so as to close relief hole 23 by the skirt wall of second piston 31.
Specifically, when into pressure limiting valve 41 diesel oil pressure be more than by pressure limiting valve 41 the indoor spring 30 of chamber to second
During the predetermined pressure that piston 31 applies, left side movement of the second piston 31 under diesel pressure effect into Fig. 1, so as to pressure limiting valve
The relief hole 23 of 41 bottoms is opened, and diesel oil is back to the fuel tank of engine by relief hole 23 by return flow line 21e.
Fig. 2 is that the electronic control low-pressure fuel gauge for single cylinder diesel of the first embodiment of the present invention is mounted on diesel oil
Stereogram on the body (sometimes, also abbreviation body) of machine.The structure of a part for body shown in phantom in Fig. 2.Such as Fig. 2 institutes
Show, in this installation approach, the fuel output port 25 of electric controlled metering valve 42 is docked with the fuel access aperture on body, passes through machine
The duct in internal portion distributes the fuel to fuel high pressure generating means.
In addition, from Fig. 2 diagram it is appreciated that electric controlled metering valve 42 fuel output port 25 and fuel inlet passage 21a,
The two-phase that the return flow line 21e of pressure limiting valve 41 is arranged at meter housing 40 is tossed about, i.e. fuel output port 25 is arranged at body
Side, and the return flow line 21e of fuel inlet passage 21a, pressure limiting valve 41 is arranged at the one side away from body.42 He of electric controlled metering valve
The axial direction (piston moving direction) of pressure limiting valve 41 is identical.In addition, electric controlled metering valve 42 there can be the shape of generally L-shaped, connect
The return flow line 21e for being connected to the connector and fuel inlet passage 21a, pressure limiting valve 41 of electronic control unit generally perpendicularly prolongs
It stretches.
Electronic control low-pressure fuel gauge according to the present embodiment be by convey come low-pressure fuel pressure limiting after weight feed
Self-contained unit.Pressure limiting valve and electric controlled metering valve can be at least integrated on the meter housing of plug-in installation at one, in internal combustion engine
Electronic control unit modulated in real time under, by the fuel high pressure generating means of metering fuel to internal combustion engine.The meter
It can be mounted on the corresponding site of engine and also be mounted on fuel high pressure generating means, simplify fuel height to greatest extent
The design of pressure generating apparatus improves the craftsmanship and reliability of fuel high pressure generating means, and further optimization of having ready conditions is started
The installation space of machine, while also obtain good hydraulic stable.
Fig. 3 is the structural representation of the electronic control low-pressure fuel gauge for multi-cylinder diesel engine of the second embodiment of the present invention
Figure.For marking the same or similar reference numeral or omission pair with the same or similar structure of first embodiment in Fig. 1
The reference numeral answered, and omit corresponding explanation.
One of the first embodiment in second embodiment and Fig. 1 in Fig. 3 the difference is that：It is set on pressure limiting valve 41
Normally opened spout hole 28 is equipped with to remain diesel oil from the lubricating system 50 of the inflow fuel high pressure generating means of pressure limiting valve 41.
It should be appreciated that aperture can be outputed in second piston 31, the is flowed to the diesel oil for allowing 31 right side of second piston
The left side of two pistons 31, and flow to normally opened spout hole 28.It should be appreciated that normally opened spout hole 28 and opening up for aperture should be set
To the degree for the pressure-limiting function for not influencing pressure limiting valve 41.It is, of course, also possible to it is omitted by changing the position of normally opened spout hole 28
Aperture.For example, normally opened spout hole 28 is arranged on to the right side of second piston 31.
First embodiment in second embodiment and Fig. 1 in Fig. 3 another difference is that：Meter housing 40
On return flow line 21e connected with the lubricating system 50 of fuel high pressure generating means by passage 21e1.When input pressure is more than
During predetermined pressure, the relief hole 23 of pressure limiting valve 41 is opened, and part diesel oil enters fuel high pressure generating means by passage 21e1
Lubricating system 50, particularly when the lubrication in the lubricating system 50 of fuel high pressure generating means is with diesel oil lack of fill.It is logical
Road 21e1 can be also used for that the diesel oil in the lubricating system 50 of fuel high pressure generating means is made to flow back into fuel tank.
In addition, the electronic control low-pressure fuel gauge of the present embodiment can also include overflow valve 43,43 both ends of overflow valve point
The fuel output channel 21b of electric controlled metering valve 42 and the return flow line 21e of pressure limiting valve 41 are not connected to.By in meter housing
Overflow valve 43 is integrated on 40, the output combustion between electric controlled metering valve 42 and fuel high pressure generating means under extreme situation can be improved
Expect influence of the vacuum degree in storage chamber to electric controlled metering valve 42.
Fig. 4 is that the electronic control low-pressure fuel gauge for multi-cylinder diesel engine of the second embodiment of the present invention is mounted on fuel
Stereogram on the high-pressure pump of high-voltage generator.It is, on the premise of installation space allows, electronic control low-pressure can be fired
Expect that meter is mounted on by the fastening mounting hole on meter housing on fuel high pressure generating means.It is shown in phantom in Fig. 4
The structure of a part for fuel high pressure generating means.As shown in figure 4, in this installation approach, the combustion of electric controlled metering valve 42
Material delivery outlet 25 is directly docked with the fuel inlet passageway of fuel high pressure generating means.
One difference of the fuel high pressure generating means of multi-cylinder diesel engine and the fuel high pressure generating means of single cylinder diesel
It is that the structure of the fuel high pressure generating means of multi-cylinder diesel engine is more complicated, the requirement higher to lubrication.In the present embodiment,
Pressure limiting valve 41 also has the passage for the lubricating system 50 for being communicated to fuel high pressure generating means, is somebody's turn to do therefore, it is possible to easily realize
The lubrication of fuel high pressure generating means.For the fuel high pressure generating means of demand fuel self-lubrication, by the reflux of pressure limiting valve
Passage is connected with the lubricating system of fuel high pressure generating means, while is set on pressure limiting valve and remained there are one normally opened spout hole
Fuel flows into the lubricating system of fuel high pressure generating means.
In addition, the fuel high pressure generating means of multi-cylinder diesel engine needs oil mass fluctuation big, the true of fuel storage intracavitary is exported
Reciprocal of duty cycle fluctuation is big.In the present embodiment, led to by the reflux of fuel output channel 21b and pressure limiting valve 41 in electric controlled metering valve 42
Overflow valve 43 on the access between road 21e is set, electric controlled metering valve 42 and fuel high pressure under extreme situation can be improved and filled
Influence of the vacuum degree of output fuel storage intracavitary between putting to electric controlled metering valve 42.
It should be appreciated that " the low-pressure fuel meter " mentioned in the application, " fuel high pressure generating means ", " high-pressure pump " etc.
In " low pressure " and " high pressure " have relativity.
Due to the conveying of delivery pump and the pressure limiting of pressure limiting valve 41, the diesel pressure in low-pressure fuel meter remains above nature
Diesel pressure under state (that is, under atmospheric pressure) and higher than the diesel pressure in fuel tank.But the bavin in low-pressure fuel meter
Oil pressure can be less than the diesel pressure in fuel high pressure generating means.
Those skilled in the art understand or at most can be appreciated that on the basis of the description of the present application is read above-mentioned certainly
The meaning of " low pressure " and " high pressure ".
The invention is not restricted to above-described embodiment, those skilled in the art under the teachings of the present invention, can be to above-mentioned implementation
Example is variously modified and modification, without departing from the scope of the present invention.
(1) in the above-described embodiments, the mandril 421 for the electronic control unit control electric controlled metering valve 42 worn by diesel engine
It moves back and forth.However, the electric controlled metering valve 42 itself of the present invention can also include control unit, controlled by the control unit automatically controlled
The mandril 421 of metering valve 42 moves back and forth.The control unit can communicate with the other parts of diesel engine.
(2) in the above-described embodiments, pressure limiting valve 41 and electric controlled metering valve 42 are in parallel.However, the invention is not limited thereto, example
Such as, electric controlled metering valve 42 can also connect with pressure limiting valve 41.For example, lead to passage (the first branched bottom of electric controlled metering valve 42
211) chamber on 23 right side of relief hole of pressure limiting valve 41 can be communicates directly to, this remains able to will open into electric controlled metering valve 42
Diesel pressure in passage is limited to the predetermined pressure limited by spring 30.
(3) in a second embodiment, in the electronic control low-pressure fuel gauge of multi-cylinder diesel engine be provided with overflow valve 43, often
Spout hole 28 and passage 21e1 are opened, however, the invention is not limited thereto.It can also be in the automatically controlled of the single cylinder diesel of first embodiment
Corresponding overflow valve 43, normally opened spout hole 28 and passage 21e1 in low-pressure fuel meter are set, and can be obtained and second
The similar effect of embodiment.
Claims (6)
1. a kind of electronic control low-pressure fuel gauge for internal combustion engine, which is characterized in that
Pressure limiting valve (41) and electric controlled metering valve (42) are at least integrated on the meter housing (40) for being capable of plug-in installation,
Wherein, the fuel pressure that the pressure limiting valve (41) is used to will open into the passage of the electric controlled metering valve (42) is defined to pre-
Below constant-pressure,
The electric controlled metering valve (42) is provided with fuel output port (25), and the electric controlled metering valve is in the modulated in real time of control unit
Lower control fuel is dosed into the fuel high pressure generating means of the internal combustion engine from the fuel output port (25),
The electronic control low-pressure fuel gauge further includes fuel main channel (21),
The fuel main channel (21) for receive by oil transfer pump from the fuel tank of the internal combustion engine convey Lai fuel, the fuel
Main channel (21) is communicated to the pressure limiting valve (41) and the electric controlled metering valve (42),
The pressure limiting valve (41) and the electric controlled metering valve (42) are parallel to the fuel main channel (21),
The electronic control low-pressure fuel gauge further includes overflow valve (43), which is arranged at the electric controlled metering valve
(42) fuel output channel (21b) is connected in the passage of return flow line (21e) of the pressure limiting valve (41).
2. electronic control low-pressure fuel gauge according to claim 1, which is characterized in that the pressure limiting valve (41), which is provided with, lets out
Press hole (23), when the fuel pressure in the pressure limiting valve (41) be more than predetermined pressure when, fuel by the relief hole (23) via
(21e) is discharged in the fuel tank of the internal combustion engine for return flow line.
3. electronic control low-pressure fuel gauge according to claim 1, which is characterized in that the electric controlled metering valve (42) is set
There is chamber (26), be provided with mobile first piston (27) in the chamber (26), in the skirt wall of the first piston (27)
Dip hatch (422) is provided with, the side wall of the side corresponding with the dip hatch (422) of the chamber (26) is provided with and the combustion
Expect the first fuel access aperture (24) of main channel (21) connection,
The first fuel access aperture (24) and the dip hatch are adjusted by the reciprocating movement of the first piston (27)
(422) overlapping degree.
4. electronic control low-pressure fuel gauge according to claim 2, which is characterized in that be provided in the pressure limiting valve (41)
Mobile second piston (31), the relief hole (23) are selectively opened and closed according to the movement of the second piston (31).
5. electronic control low-pressure fuel gauge according to any one of claim 1 to 4, which is characterized in that described automatically controlled low
Pressurized fuel meter is the self-contained unit of weight feed after the low-pressure fuel pressure limiting for carrying out conveying, and the meter housing (40) sets
Fastening mounting hole is equipped with, it is high for the electronic control low-pressure fuel gauge to be mounted on to the body of the internal combustion engine or the fuel
On pressure generating apparatus.
6. electronic control low-pressure fuel gauge according to any one of claim 1 to 4, which is characterized in that the pressure limiting valve
(41) normally opened spout hole (28) is additionally provided with, the normally opened spout hole (28) is used to fill to the fuel high pressure of the internal combustion engine
The lubricating system (50) put provide lubrication fuel and/or
The relief hole (23) of the pressure limiting valve (41) is communicated to the lubricating system (50) of the fuel high pressure generating means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226192.3A CN106762271B (en) | 2016-12-27 | 2016-12-27 | For the electronic control low-pressure fuel gauge of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226192.3A CN106762271B (en) | 2016-12-27 | 2016-12-27 | For the electronic control low-pressure fuel gauge of internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106762271A CN106762271A (en) | 2017-05-31 |
| CN106762271B true CN106762271B (en) | 2018-05-29 |
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ID=58922065
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611226192.3A Active CN106762271B (en) | 2016-12-27 | 2016-12-27 | For the electronic control low-pressure fuel gauge of internal combustion engine |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003322067A (en) * | 2002-04-26 | 2003-11-14 | Denso Corp | Accumulator fuel injection device |
| CN204677293U (en) * | 2015-06-12 | 2015-09-30 | 快马天然气动力科技（苏州）有限公司 | A kind of direct-injection LNG-diesel dual-fuel system |
| CN105229293A (en) * | 2013-06-28 | 2016-01-06 | 五十铃自动车株式会社 | The control gear of common rail fuel injection device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4424161B2 (en) * | 2004-11-08 | 2010-03-03 | 株式会社デンソー | Common rail fuel injection system |
-
2016
- 2016-12-27 CN CN201611226192.3A patent/CN106762271B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003322067A (en) * | 2002-04-26 | 2003-11-14 | Denso Corp | Accumulator fuel injection device |
| CN105229293A (en) * | 2013-06-28 | 2016-01-06 | 五十铃自动车株式会社 | The control gear of common rail fuel injection device |
| CN204677293U (en) * | 2015-06-12 | 2015-09-30 | 快马天然气动力科技（苏州）有限公司 | A kind of direct-injection LNG-diesel dual-fuel system |
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| Publication number | Publication date |
|---|---|
| CN106762271A (en) | 2017-05-31 |
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