CN106640449B - For the self-priming electronic control low-pressure fuel gauge of internal combustion engine - Google Patents
For the self-priming electronic control low-pressure fuel gauge of internal combustion engine Download PDFInfo
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- CN106640449B CN106640449B CN201611226172.6A CN201611226172A CN106640449B CN 106640449 B CN106640449 B CN 106640449B CN 201611226172 A CN201611226172 A CN 201611226172A CN 106640449 B CN106640449 B CN 106640449B
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- Prior art keywords
- fuel
- pressure fuel
- electronic control
- low
- pressure
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- 239000000446 fuel Substances 0.000 title claims abstract description 154
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 32
- 239000002828 fuel tank Substances 0.000 claims abstract description 9
- 230000005520 electrodynamics Effects 0.000 claims description 8
- 238000003032 molecular docking Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 239000002283 diesel fuel Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
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- 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
-
- 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
-
- 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
- F02M37/04—Feeding by means of driven pumps
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 relates to the self-priming electronic control low-pressure fuel gauge for internal combustion engine, with meter housing (40), pressure limiting valve (41), electric controlled metering valve (42) and low pressure fuel transfer pump (44).Electric controlled metering valve is controlled by electronic control unit, and the fuel that low pressure fuel transfer pump (44) is suctioned out from the fuel tank of internal combustion engine is supplied to the fuel high pressure generating means of internal combustion engine at regular time and quantity under the control of pressure limiting valve (41) through electric controlled metering valve (42).The electronic control low-pressure fuel gauge is the self-contained unit that pressure limiting valve, electric controlled metering valve and low pressure fuel transfer pump are integrated in meter housing, can be mounted on the corresponding position of internal combustion engine or be installed to fuel high pressure generating means.The electronic control low-pressure fuel gauge of the present invention simplifies the design of fuel high pressure generating means to greatest extent, and good hydraulic stable is provided for the fuel injection equipment (FIE) of internal combustion engine.
Description
Technical field
The present invention relates to the components of internal combustion engine, more particularly relate to the self-priming electronic control low-pressure fuel metering of internal combustion engine
Device.
Background technology
In existing internal-combustion engine technology, low-pressure fuel is conveyed to the pattern of high-voltage generator, a kind of (such as single cylinder bavin
Oil machine) it is that the pumping function of high-voltage generator itself is leaned on to be suctioned out from fuel tank；A kind of (such as configuration machinery synthesis pump or automatically controlled
The multi-cylinder diesel engine of combination unit pump) employ the oil transfer pump of independent single conveying function, quantity delivered places one's entire reliance upon with turning
The hydraulic performance of speed variation；It is also a kind of to realize the pattern for meeting pressure store using low-pressure fuel quantity delivered is controlled, such as altogether
Rail technology Multi-Cylinder Diesel Engine has still followed this traditional technology route of oil transfer pump for employing independent single conveying function, by pressure limiting
Function and quantitative control function are arranged in high-voltage generator design, cause high-voltage generator complicated, and craftsmanship is poor,
Reliability is more weak, hydraulic stable is poor.It is especially difficult to individually be sealed low-pressure system and hydraulic performance detects.
The content of the invention
It is an object of the invention to provide a kind of self-priming electronic control low-pressure fuel gauges for internal combustion engine, can subtract
Change the structure complexity of fuel high pressure generating means, and individually the electronic control low-pressure fuel gauge can be sealed and liquid
Force characteristic detects.
Thus, the present invention may be employed but be not limited to following proposal.
A kind of self-priming electronic control low-pressure fuel gauge for internal combustion engine, the electronic control low-pressure fuel gauge have meter
Measuring device housing, pressure limiting valve, electric controlled metering valve and low pressure fuel transfer pump,
The electric controlled metering valve is controlled by electronic control unit, and the low pressure fuel transfer pump is from the fuel tank of the internal combustion engine
The fuel of sucking-off is dosed into the fuel of the internal combustion engine under the control of the pressure limiting valve through the electric controlled metering valve timing
High-voltage generator,
The electronic control low-pressure fuel gauge is to be integrated with the pressure limiting valve, the electric controlled metering in the meter housing
The self-contained unit of valve and the low pressure fuel transfer pump.
Preferably, the electronic control low-pressure fuel gauge can be installed on the corresponding position of the internal combustion engine.
Preferably, the low pressure fuel transfer pump is electrodynamic type low pressure fuel transfer pump.
Preferably, it is arranged at the fuel output channel of the electric controlled metering valve, is arranged at the low pressure fuel transfer pump
Fuel inlet passage, the return flow line for being arranged at the pressure limiting valve can be installed to the internal combustion engine towards the meter housing
One side the extension of opposite side, the fuel output channel docks by the road with the fuel access aperture of the internal combustion engine.
Preferably, the electronic control low-pressure fuel gauge can be installed on the fuel high pressure generating means.
Preferably, the low pressure fuel transfer pump is mechanical low pressure fuel transfer pump.
Preferably, the mechanical low pressure fuel transfer pump is driven with the drive shaft of the fuel high pressure generating means.
Preferably, the fuel inlet passage of the low pressure fuel transfer pump, the reflux for being arranged at the pressure limiting valve are arranged at
The opposite side of passage towards the one side that can be installed to the fuel high pressure generating means of the meter housing extends.
Preferably, the electric controlled metering valve is controlled by the electronic control unit of the internal combustion engine.
Preferably, the fuel master that the electronic control low-pressure fuel gauge includes extending from the low pressure fuel transfer pump is led to
Road, the pressure limiting valve and the electric controlled metering valve are parallel to the fuel main channel.
Electronic control low-pressure fuel gauge according to the present invention be integrated on a housing (meter housing) pressure limiting valve,
The self-contained unit of electric controlled metering valve and low pressure fuel transfer pump, thus, it is mountable to the corresponding position of internal combustion engine or is installed on
Fuel high pressure generating means.In this way, simplifying the design of fuel high pressure generating means to greatest extent, fuel high pressure hair is improved
The craftsmanship and reliability of generating apparatus, provide good hydraulic stable, and it is independent to electronic control low-pressure fuel gage to have ready conditions
Measuring device is sealed and hydraulic performance detection, can realize differentiated control.
Description of the drawings
Multiple embodiments of the present invention are shown in the drawings, they are described in detail in the following description.
Fig. 1 is the self-priming electricity with electrodynamic type low pressure fuel transfer pump according to first embodiment for single cylinder diesel
Control the schematic diagram of low-pressure fuel meter；
Fig. 2 is the self-priming electricity with electrodynamic type low pressure fuel transfer pump according to first embodiment for single cylinder diesel
Control the stereogram of low-pressure fuel meter；
Fig. 3 is the self-priming electricity of the mechanical low pressure fuel transfer pump of the band for multi-cylinder diesel engine according to second embodiment
Control the schematic diagram of low-pressure fuel meter；
Fig. 4 is the self-priming electricity of the mechanical low pressure fuel transfer pump of the band for multi-cylinder diesel engine according to second embodiment
Control the stereogram of low-pressure fuel meter.
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 examples go out the self-priming electronic control low-pressure fuel gauge according to first embodiment for single cylinder diesel.It should
Electronic control low-pressure fuel gauge includes meter housing 40.The electrodynamic type low pressure fuel transfer pump being integrated on meter housing 40
44 send diesel oil from after fuel inlet passage 21a boostings from the fuel tank (not shown) of internal combustion engine (otherwise referred to as " engine ")
Enter the fuel main channel 21 in meter housing 40.
Pressure limiting valve 41 and electric controlled metering valve 42, pressure limiting valve 41 and electric controlled metering valve have been arranged in parallel on fuel main channel 21
42 fuel access aperture 22,24 is led to respectively via the first fuel branch passage 211 and the second fuel branch passage 212 with fuel master
Road 21 communicates.
Fuel access aperture 22 and relief hole 23 are provided on the valve casing of pressure limiting valve 41.Bullet is provided in the valve casing of pressure limiting valve 41
Spring 30 and the piston 31 to be pressed by spring 30 towards fuel access aperture 22.When the input pressure in fuel main channel 21 is more than pressure limiting
During the pressure limiting pressure that valve 41 is set, the pressure that piston 31 resists spring 30 under the action of oil pressure is moved to the left, pressure limiting valve 41
Relief hole 23 is opened, and diesel oil is back to the fuel tank of engine by return flow line 21e.
Fuel access aperture 24 and fuel output port 25 are provided on the valve casing of electric controlled metering valve 42.The valve of electric controlled metering valve 42
Mandril 421, piston 27 and spring 29 are provided in shell.Dip hatch 422 is provided in the skirt wall of piston 27.Spring 29 is to piston 27
Pressure so that dip hatch 422 staggers (not be overlapped) with fuel access aperture 24.According to the demand of real-time working condition, worn in diesel engine
Electronic control unit (not shown) modulation under force electric controlled metering valve 42 reciprocating movement mandril 421 and piston 27 change
Fuel access aperture 24 and the size of 422 Chong Die aperture of dip hatch, make the diesel oil self-overlapped part of limitation pressure through fuel output port
25 are supplied to fuel high pressure generating means (not shown) at regular time and quantity by fuel output channel 21b.
Fig. 2 examples go out first embodiment for single cylinder diesel with the self-priming of electrodynamic type low pressure fuel transfer pump 44
The stereogram of electronic control low-pressure fuel gauge.The electronic control low-pressure fuel gauge can fasten mounting hole by multiple (such as three)
46 are mounted on the corresponding position of single cylinder diesel.Fuel inlet passage 21a and return flow line 21e are connected by pipeline with fuel tank；
Fuel output channel 21b is docked by the road with the fuel access aperture on diesel engine.
The fuel output channel 21b of electric controlled metering valve 42 is appreciated that from the diagram of Fig. 2, is arranged at the combustion of electrodynamic type low pressure
The fuel inlet passage 21a of material conveying pump 44, the same side of return flow line 21e towards the meter housing 40 of pressure limiting valve 41 are prolonged
It stretches, i.e. extend towards the opposite side of the one side for being installed to diesel engine of meter housing 40.It in this way, can be by meter shell
Body 40 is installed on diesel engine and then connects each pipeline.In addition, electric controlled metering valve 42 can have the shape of generally L-shaped,
The connector 423 for being connected to electronic control unit is substantially vertical with the return flow line 21e of fuel inlet passage 21a, pressure limiting valve 41
Ground extends.
In addition, electrodynamic type low pressure fuel transfer pump 44 and electric controlled metering valve 42 can be components independent of each other, Ke Yitong
It crosses and meter housing 40 is installed to such as screw.
Fig. 3 examples go out the self-priming of the mechanical low pressure fuel transfer pump of the band for multi-cylinder diesel engine according to second embodiment
Formula electronic control low-pressure fuel gauge, the self-priming electronic control low-pressure fuel gauge that Fig. 4 examples go out second embodiment are mounted on fuel
Stereogram on high-voltage generator.For the reference numeral identical with the same or similar component mark of first embodiment, and
Omit corresponding description.
It is in place of the main difference of second embodiment and first embodiment：In a second embodiment, it is integrated in meter
Machinery (rotor) formula low pressure fuel transfer pump 44 on housing 40 is from the fuel tank of engine by diesel oil from fuel inlet passage 21a
The fuel main channel 21 in meter housing 40 is sent into after boosting；The self-priming electronic control low-pressure fuel gauge peace of second embodiment
On fuel high pressure generating means, the drive shaft 43 of fuel high pressure generating means has been borrowed to drive mechanical low-pressure fuel defeated
Pump 44 is sent, fuel output channel 21b is processed on the housing of fuel high pressure generating means.
Beneficial effects of the present invention are briefly described below.
There are one 41, electric controlled metering valves 42 of pressure limiting valve for electronic control low-pressure fuel gauge according to the present invention, at least tool
An and low pressure fuel transfer pump 44.Electric controlled metering valve 42 is controlled by the electronic control unit of internal combustion engine, low pressure fuel transfer pump
44 are supplied to the fuel of internal combustion engine from the fuel of fuel tank sucking-off at regular time and quantity under the control of pressure limiting valve 41 through electric controlled metering valve 42
High-voltage generator.The meter is that pressure limiting valve, electric controlled metering valve and low pressure fuel transfer pump are integrated on a housing
Self-contained unit can be mounted on the corresponding position of internal combustion engine or be installed on fuel high pressure generating means.Combustion is simplified to greatest extent
Expect the design of high-voltage generator, improve the craftsmanship and reliability of fuel high pressure generating means, provide good fluid power
Stability, and low-pressure system (i.e. electronic control low-pressure fuel gauge) is sealed independence of having ready conditions and hydraulic performance detection,
It can realize differentiated control.
The low pressure fuel transfer pump of the application can be mechanical, and it is a variety of that gear pump, impeller pump, vane pump etc. can be used
Selection.Low pressure fuel transfer pump can also be DYN dynamic, and magnetoelectricity motor, piezoelectric motor etc. can be used.I.e. the application is to low pressure
The selectional restriction of fuel transfer pump is small, can select suitable low pressure fuel transfer pump according to actual condition.
It should be appreciated that " the electronic control low-pressure fuel gauge " mentioned in the application, " low pressure fuel transfer pump ", " fuel height
" low pressure " and " high pressure " in pressure generating apparatus " etc. has relativity.
Since the boosting of low pressure fuel transfer pump conveys, the diesel pressure in electronic control low-pressure fuel gauge remains above nature
Diesel pressure under state (that is, under atmospheric pressure).But the diesel pressure in electronic control low-pressure fuel gauge is less than fuel height
Diesel pressure in pressure generating apparatus.
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.One or several in the same embodiment or different embodiments
A element or feature may also form new beneficial embodiment, i.e., different embodiments can be combined as.Such as it can be used
Following modification.
(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 is moved back and forth with piston 27.However, the electric controlled metering valve 42 itself of the present invention can also include control unit, by the control unit
The mandril 421 and piston 27 of control electric controlled metering valve 42 move back and forth.The control unit can lead to the other parts of diesel engine
Letter.
(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 second fuel branch of electric controlled metering valve 42
Passage 212) chamber on the right side of the relief hole 23 of pressure limiting valve 41 can be communicates directly to, this remains able to will open into electric controlled metering valve
Diesel pressure in 42 passage is limited to the predetermined pressure limited by spring 30.
Claims (5)
1. a kind of self-priming electronic control low-pressure fuel gauge for internal combustion engine, the electronic control low-pressure fuel gauge has metering
Device housing (40), pressure limiting valve (41), electric controlled metering valve (42) and low pressure fuel transfer pump (44),
The electric controlled metering valve (42) is controlled by electronic control unit, and the low pressure fuel transfer pump (44) is from the internal combustion engine
The fuel that fuel tank suctions out is supplied to described at regular time and quantity under the control of the pressure limiting valve (41) through the electric controlled metering valve (42)
The fuel high pressure generating means of internal combustion engine,
The electronic control low-pressure fuel gauge is to be integrated with the pressure limiting valve (41), described automatically controlled in the meter housing (40)
The self-contained unit of metering valve (42) and the low pressure fuel transfer pump (44),
The electronic control low-pressure fuel gauge is installed on the corresponding position of the internal combustion engine,
It is arranged at the fuel output channel (21b) of the electric controlled metering valve (42), is arranged at the low pressure fuel transfer pump (44)
Fuel inlet passage (21a), be arranged at the return flow lines (21e) of the pressure limiting valve (41) towards the meter housing (40)
The one side that can be installed to the internal combustion engine opposite side extension, the fuel output channel (21b) by the road with the internal combustion
The fuel access aperture docking of machine,
The electronic control low-pressure fuel gauge is included from the fuel main channel (21) that the low pressure fuel transfer pump (44) extends,
The pressure limiting valve (41) and the electric controlled metering valve (42) are parallel to the fuel main channel (21).
2. electronic control low-pressure fuel gauge according to claim 1, which is characterized in that the low pressure fuel transfer pump (44)
For electrodynamic type low pressure fuel transfer pump.
3. electronic control low-pressure fuel gauge according to claim 1, which is characterized in that the low pressure fuel transfer pump (44)
For mechanical low pressure fuel transfer pump.
4. electronic control low-pressure fuel gauge according to claim 3, which is characterized in that with the fuel high pressure generating means
Drive shaft (43) drive the mechanical low pressure fuel transfer pump.
5. electronic control low-pressure fuel gauge according to any one of claim 1 to 4, which is characterized in that the automatically controlled meter
Amount valve (42) is controlled by the electronic control unit of the internal combustion engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226172.6A CN106640449B (en) | 2016-12-27 | 2016-12-27 | For the self-priming electronic control low-pressure fuel gauge of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226172.6A CN106640449B (en) | 2016-12-27 | 2016-12-27 | For the self-priming electronic control low-pressure fuel gauge of internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106640449A CN106640449A (en) | 2017-05-10 |
| CN106640449B true CN106640449B (en) | 2018-05-29 |
Family
ID=58832408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611226172.6A Active CN106640449B (en) | 2016-12-27 | 2016-12-27 | For the self-priming electronic control low-pressure fuel gauge of internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106640449B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11268482B2 (en) | 2020-04-21 | 2022-03-08 | Caterpillar Inc. | Fuel system having pumping and filtration fuel module and flow housing for same |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2800614A1 (en) * | 1978-01-07 | 1979-07-19 | Bosch Gmbh Robert | FUEL INJECTION SYSTEM |
| DE10218021A1 (en) * | 2002-04-23 | 2003-11-06 | Bosch Gmbh Robert | Fuel injection device for an internal combustion engine |
| JP4424161B2 (en) * | 2004-11-08 | 2010-03-03 | 株式会社デンソー | Common rail fuel injection system |
| DE102009003051A1 (en) * | 2009-05-13 | 2010-11-18 | Robert Bosch Gmbh | Method for filling a fuel system for motor vehicles |
| DE102010043531A1 (en) * | 2010-11-08 | 2012-05-10 | Robert Bosch Gmbh | Fuel injection system of an internal combustion engine |
| CN205117576U (en) * | 2015-11-13 | 2016-03-30 | 赵鹏 | Car fuel high -pressure pump |
-
2016
- 2016-12-27 CN CN201611226172.6A patent/CN106640449B/en active Active
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| Publication number | Publication date |
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| CN106640449A (en) | 2017-05-10 |
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