CN105736201B - Become the pressure regulating device of fuel pressure electric injection system - Google Patents
Become the pressure regulating device of fuel pressure electric injection system Download PDFInfo
- Publication number
- CN105736201B CN105736201B CN201610207471.9A CN201610207471A CN105736201B CN 105736201 B CN105736201 B CN 105736201B CN 201610207471 A CN201610207471 A CN 201610207471A CN 105736201 B CN105736201 B CN 105736201B
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- China
- Prior art keywords
- pressure
- fuel
- oil
- electromagnetic valve
- valve core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
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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
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
- F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses a kind of pressure regulating devices of pressure regulating device for becoming fuel pressure electric injection system, component is adjusted including oil pressure, and the oil pressure adjusts that component is set between fuel injector and fuel pump and formed between fuel injector and fuel pump can be by different at least two oil feeding lines of the charge oil pressure of control switching；The setting of component is adjusted by oil pressure, guarantee that fuel injector can satisfy the demand and distributive value precision of the smaller amount of fuel of gasoline engine under the corresponding low discharge of low burn oil pressure, and by increasing the input pressure of fuel injector so that injection flow meets the big requirement of gasoline engine fuel demand under the high speed conditions of big load, engine is normal, efficiently runs；Guarantee that electric injection system can be good at meeting the needs of Different Work Condition of Engine is to amount of fuel, fuel injector flow control is accurate, and structure is simple, low in cost.
Description
Technical field
The present invention relates to a kind of fuel pressure adjustment structures, and in particular to a kind of pressure regulator for becoming fuel pressure electric injection system
Structure.
Background technique
Electric control fuel oil jet system is at home and abroad widely applied, which is started using the characterization that various sensors detect
The parameter signal of machine operating condition, by electronic control unit (abbreviation ECU) by calculating, analyzing, compare, according to the various works of engine
Condition needs to control distributive value, guarantees that engine has good dynamic property, economy and emission performance；And in existing intake port injection
Electric injection system uses single constant fuel pressure generally to guarantee the fuel injection amount of fuel injector to be directly proportional to injecting time
Linearity curve, in the high speed conditions of the big load of engine, there are available injecting time short feelings when distributive value Datong District of demand
At this moment condition requires fuel injector to have sufficiently large injection flow.Fuel injector has the characteristic of minimum controllable fuel injection pulsewidth simultaneously, therefore
It is required that required fuel oil injection pulse width is as big as possible to guarantee to be greater than fuel injector in engine minimum load and minimum speed
The controllable fuel injection pulsewidth of minimum, this requirement is substantially to require fuel injector injection flow sufficiently small, therefore due to two kinds of poles of gasoline engine
Limit operating condition to the different of fuel injector flow requires that the fuel injector that will appear constant flow rate is caused to be difficult to meet some extreme parameters vapour
Demand of the oil machine to amount of fuel, such as single cylinder huge discharge rev-happy engine.
Summary of the invention
In view of this, providing the purpose of the present invention is overcoming defect in the prior art and becoming fuel pressure electric injection system
Pressure regulating device can adjust fuel injector charge oil pressure, meet the needs of Different Work Condition of Engine is to amount of fuel, and structure letter
It is single, it is low in cost.
The pressure regulating device of change fuel pressure electric injection system of the invention, including oil pressure adjust component, the oil pressure adjusting group
Part is set between fuel injector and fuel pump and is formed between fuel injector and fuel pump can be by the charge oil pressure of control switching
Different at least two oil feeding lines；Under the high speed conditions of the big load of engine and Smaller load bottom speed conditions；Described two
Oil feeding line includes suitable low pressure oil supply oil circuit and high-pressure oil feed oil circuit, and injector charge oil pressure tune is realized in the switching of two oil circuits
Section, structure is simple, adjusts in time and accurate；The setting of component is adjusted by oil pressure, guarantees that fuel injector can expire under low discharge
The demand and distributive value precision of the sufficient smaller amount of fuel of gasoline engine, and under the high speed conditions of big load by increase fuel injector into
For oil pressure so that injection flow meets the big requirement of gasoline engine fuel demand, guarantee engine is normal, efficiently runs.
Further, it includes the reversal valve and at least two fuel pressures for switching oil feeding line that the oil pressure, which adjusts component,
Adjuster, the oil feeding line by the way that corresponding fuel pressure regulator is arranged on oil supply pipe by being formed；It further include that monitoring is single
Member, the monitoring unit, which is used to monitor engine operating state and controls reversal valve according to monitoring signal, realizes cutting for oil feeding line
It changes；The oil feeding line of different oil pressures out, the fuel oil that same fuel pump can be exported directly are generated by fuel pressure regulator
It is divided into two oil feeding lines of different pressures, structure is simple, low in cost.
Further, the reversal valve is four way solenoid valve, and the four way solenoid valve includes valve body and electromagnetic valve core component, institute
Valve body setting interconnected oil inlet, oil outlet and two pressure regulation access ports are stated, the pressure regulation access port is respectively arranged with combustion
Oil pressure draught control mechanism is for adjusting oil outlet pressure, and electromagnetic valve core component is under the control of monitoring unit for closing one of them
Pressure regulation access port and open another pressure regulation access port；Guarantee that oil supply pipe structure is simple, oil pressure adjusting modular construction is compact, peace
Dress is convenient, and oil feeding line switching is timely.
Further, described two pressure regulation access ports are symmetrical arranged, and the electromagnetic valve core of electromagnetic valve core component passes through with single freedom
Degree reciprocating manner is set between two pressure regulation access ports；The switch speed and precision of oil feeding line are further increased, is protected
Demonstrate,prove the accuracy of spray of fuel injector.
Further, the electromagnetic valve core be clava and in a manner of along itself axial sliding movement in be placed on a fixed setting
In the excitation set of valve inner, the pretightning force resetted for electromagnetic valve core is provided on the electromagnetic valve core；Stable structure is encouraged
Magnetosheath also has guiding role, guarantees that the stability of electromagnetic valve core movement is good.
Further, electromagnetic valve core both ends are arc and can partially protrude into realization sealing in pressure regulation access port respectively；Sealing is steady
It is fixed and tight.
Further, the helical spring of the offer pretightning force is arranged with outside the electromagnetic valve core, the helical spring is logical
It crosses one end and is fixed on electromagnetic valve core, the other end is fixed on the inner wall of valve body；Helical spring is conducive to electromagnetic valve core axial movement
Stability guarantees that four-way electromagnetic Vavle switching is smooth.
Further, the fuel pressure regulator is pressure regulator valve, and the pressure modulating opening of pressure regulator valve is connected to corresponding pressure regulation access port,
The refluxing opening of pressure regulator valve is connected to by an oil return pipe with fuel tank；Guarantee that the pressure in different oil feeding lines is stablized, improves oil spout spray
The stability of oily device.
The beneficial effects of the present invention are: a kind of pressure regulating device for becoming fuel pressure electric injection system disclosed by the invention, passes through
Oil pressure adjusts the setting of component, guarantees that fuel injector can satisfy the smaller fuel oil of gasoline engine under the corresponding low discharge of low burn oil pressure
The demand and distributive value precision of amount, and by increasing the input pressure of fuel injector so that injection stream under the high speed conditions of big load
Amount meets the big requirement of gasoline engine fuel demand, and engine is normal, efficiently runs；It is full to guarantee that electric injection system can be good at
Demand of the sufficient Different Work Condition of Engine to amount of fuel, fuel injector flow control is accurate, and structure is simple, low in cost.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawings and examples:
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is enlarged drawing at the A of Fig. 1.
Specific embodiment
Fig. 1 is the structural diagram of the present invention, and Fig. 2 is enlarged drawing at the A of Fig. 1, as shown, the change in the present embodiment is fired
The pressure regulating device of oil pressure electric injection system, including oil pressure adjust component, and the oil pressure adjusts component and is set to fuel injector 1 and fuel oil
Being formed between pump and between fuel injector 1 and fuel pump can be by the different at least two fuel feeding oil of the charge oil pressure of control switching
Road；Using engine 16 electronic control unit 4 (i.e. ECU) according to engine operating state (including monitoring the big load of engine
High speed conditions, Smaller load bottom speed conditions and other all load conditions related with fuel injection amount) switching fuel feeding oil
Road simultaneously controls fuel injector 1 and sprays best fuel injection amount, and engine state monitor is detected by the sensor being arranged, described
Sensor include for detecting the first sensor 2a of 15 position of air throttle, the second sensor 2b for detecting admission pressure and
For detecting the 3rd sensor 3 of 16 revolving speed of engine, ECU4 controls oil pressure by the detection signal of sensor and adjusts component；Institute
Stating two oil feeding lines includes that suitable low pressure oil supply oil circuit and high-pressure oil feed oil circuit, high and low pressure oil feeding line are independent by two
Fuel pump is operated alone to be formed, and can also be driven simultaneously and be formed by a fuel pump, the present embodiment is driven simultaneously using a fuel pump
High and low pressure oil feeding line is formed in an oil supply gallery；Realize that injector charge oil pressure is adjusted by the switching of two oil circuits,
Structure is simple, and adjusting is in time and accurate, and certainly, the switching of high and low fuel pressure is controlled by ECU, the fuel oil in handoff procedure
ECU is written by the mode of test the data obtained and fitting accurately to control the fuel injection amount of this process in flow.
In the present embodiment, it includes the reversal valve and at least two fuel oils for switching oil feeding line that the oil pressure, which adjusts component,
Pressure regulator (including fuel pressure regulator 6 and fuel pressure regulator 7), the oil feeding line is by by oil supply pipe
The corresponding fuel pressure regulator of upper setting is formed, and monitoring unit controls the switching that reversal valve realizes oil feeding line；Pass through fuel oil pressure
Draught control mechanism directly generates the oil feeding line of different pressures, and the fuel oil that same fuel pump exports can be divided into two of different pressures
Oil feeding line, structure is simple, low in cost.
In the present embodiment, the reversal valve is four way solenoid valve 8, and the four way solenoid valve 8 includes valve body and electromagnetic valve core
Component 9, valve body setting interconnected oil inlet 8a, oil outlet 8b and two pressure regulation access ports (including pressure regulation access port
8c and pressure regulation access port 8d), the pressure regulation access port is respectively arranged with fuel pressure regulator and is used to adjust oil outlet pressure, electricity
Magnet valve core assembly is under the control of monitoring unit for closing one of pressure regulation access port and opening another pressure regulation access port；
Guaranteeing that oil supply pipe structure is simple, oil pressure adjusting modular construction is compact, and it is easy for installation, and oil feeding line switching is timely.
In the present embodiment, described two pressure regulation access ports are symmetrical arranged, the electromagnetic valve core 91 of electromagnetic valve core component by with
Single-degree-of-freedom reciprocating manner is set between two pressure regulation access ports；As shown, the four way solenoid valve 8 is tied in " ten "
Structure guarantees the accuracy of spray of fuel injector 1 conducive to the switch speed and precision for improving oil feeding line；The electromagnetic valve core component 9 is adopted
With the core assembly for being able to achieve the object of the invention in the prior art, details are not described herein.
In the present embodiment, the electromagnetic valve core 91 be clava and in a manner of along itself axial sliding movement in be placed on one solid
Surely it is set in the excitation set 92 inside valve body 8, the preload resetted for electromagnetic valve core 91 is provided on the electromagnetic valve core 91
Power；The outer body for connecting control signal that the excitation set 92 can be wound for spiral conducting line, excitation set 92 also there is guiding to make
With the stability for guaranteeing that electromagnetic valve core 91 moves is good.
In the present embodiment, 91 both ends of electromagnetic valve core are that arc and can partially protruding into respectively realizes close in pressure regulation access port
Envelope；Arcuate structure is conducive to reduce end face resistance, can be self-positioning, guarantees that sealing is stable and tight.
In the present embodiment, the helical spring 93 of the offer pretightning force, the spiral shell are arranged with outside the electromagnetic valve core 91
It revolves spring 93 and electromagnetic valve core 91 is fixed on by one end, the other end is fixed on the inner wall of valve body 8；The electromagnetic valve core 91 is fixed outer
Set one is for fixing the mounting ring 94 of helical spring 93, being placed in excitation set 92 in mounting ring 94 and can reducing frictional resistance, spiral shell
Rotation spring 93 is conducive to the stability that electromagnetic valve core 91 is axially moved along itself, guarantees that four-way electromagnetic Vavle switching is smooth.
In the present embodiment, the fuel pressure regulator is pressure regulator valve, the pressure modulating opening of pressure regulator valve and corresponding pressure regulation access port
The refluxing opening of connection, pressure regulator valve is connected to by an oil return pipe 10 with fuel tank 11；Guarantee that the pressure in different oil feeding lines is stablized, mentions
The existing existing pressure regulation valve arrangement for being able to achieve the object of the invention can be used in the stability of high oil spout fuel injector 1, the pressure regulator valve,
Details are not described herein.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (2)
1. a kind of pressure regulating device for becoming fuel pressure electric injection system, it is characterised in that: adjust component, the oil pressure tune including oil pressure
Section component is set between fuel injector and fuel pump and is formed between fuel injector and fuel pump can be by the fuel feeding of control switching
Different at least two oil feeding lines of pressure；It includes reversal valve for switching oil feeding line and at least that the oil pressure, which adjusts component,
Two fuel pressure regulators, the oil feeding line by the way that corresponding fuel pressure regulator is arranged on oil supply pipe by being formed；
It further include monitoring unit, the monitoring unit is realized for monitoring engine operating state and controlling reversal valve according to monitoring signal
The switching of oil feeding line；The reversal valve is four way solenoid valve, and the four way solenoid valve includes valve body and electromagnetic valve core component, institute
Valve body setting interconnected oil inlet, oil outlet and two pressure regulation access ports are stated, the pressure regulation access port is respectively arranged with combustion
Oil pressure draught control mechanism is for adjusting oil outlet pressure, and electromagnetic valve core component is under the control of monitoring unit for closing one of them
Pressure regulation access port and open another pressure regulation access port；The fuel pressure regulator be pressure regulator valve, the pressure modulating opening of pressure regulator valve with
Corresponding pressure regulation access port connection, the refluxing opening of pressure regulator valve are connected to by an oil return pipe with fuel tank；Described two pressure regulation access ports pair
Claim setting, the electromagnetic valve core of electromagnetic valve core component by with single-degree-of-freedom reciprocating manner be set to two pressure regulation access ports it
Between；The electromagnetic valve core be clava and in a manner of along itself axial sliding movement in be placed on one and be fixedly installed on valve inner
In excitation set, the pretightning force resetted for electromagnetic valve core is provided on the electromagnetic valve core；The electromagnetic valve core both ends are arc
And it can partially protrude into realize sealing in pressure regulation access port respectively.
2. the pressure regulating device according to claim 1 for becoming fuel pressure electric injection system, it is characterised in that: the electromagnetic valve core
It is arranged with the helical spring of the offer pretightning force outside, the helical spring is fixed on electromagnetic valve core, the other end by one end
It is fixed on the inner wall of valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610207471.9A CN105736201B (en) | 2016-04-05 | 2016-04-05 | Become the pressure regulating device of fuel pressure electric injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610207471.9A CN105736201B (en) | 2016-04-05 | 2016-04-05 | Become the pressure regulating device of fuel pressure electric injection system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105736201A CN105736201A (en) | 2016-07-06 |
| CN105736201B true CN105736201B (en) | 2019-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610207471.9A Expired - Fee Related CN105736201B (en) | 2016-04-05 | 2016-04-05 | Become the pressure regulating device of fuel pressure electric injection system |
Country Status (1)
| Country | Link |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205823505U (en) * | 2016-04-05 | 2016-12-21 | 重庆隆鑫机车有限公司 | For EFI fuel pressure Transfer tectonics |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4895184A (en) * | 1987-12-21 | 1990-01-23 | Abbey Harold | Fluid servo system for fuel injection and other applications |
| DE19954058A1 (en) * | 1999-11-10 | 2001-05-23 | Bosch Gmbh Robert | Power storage-assisted control of the injection quantities in large diesel engines |
| CN103061928B (en) * | 2011-10-22 | 2016-01-13 | 成都市翻鑫家科技有限公司 | A kind of two-way hydraulic adjustment device |
| CN102900579A (en) * | 2012-10-22 | 2013-01-30 | 哈尔滨工程大学 | Variable-oil injection pressure double-boosting common-trail oil injection system |
| CN104314696A (en) * | 2014-08-26 | 2015-01-28 | 北京动力机械研究所 | Fuel metering valve control system and fuel regulator |
-
2016
- 2016-04-05 CN CN201610207471.9A patent/CN105736201B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205823505U (en) * | 2016-04-05 | 2016-12-21 | 重庆隆鑫机车有限公司 | For EFI fuel pressure Transfer tectonics |
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| CN105736201A (en) | 2016-07-06 |
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