CN110725992A - Low-power-consumption driving fuel metering valve for auxiliary injection of fuel gas of heavy oil piston engine - Google Patents

Low-power-consumption driving fuel metering valve for auxiliary injection of fuel gas of heavy oil piston engine Download PDF

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Publication number
CN110725992A
CN110725992A CN201911096939.1A CN201911096939A CN110725992A CN 110725992 A CN110725992 A CN 110725992A CN 201911096939 A CN201911096939 A CN 201911096939A CN 110725992 A CN110725992 A CN 110725992A
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CN
China
Prior art keywords
valve
rod body
power
piston engine
low
Prior art date
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Pending
Application number
CN201911096939.1A
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Chinese (zh)
Inventor
黎艺文
邓宇
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Li Xinyue
Original Assignee
Guangxi Qingxin Power Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangxi Qingxin Power Technology Co Ltd filed Critical Guangxi Qingxin Power Technology Co Ltd
Publication of CN110725992A publication Critical patent/CN110725992A/en
Pending legal-status Critical Current

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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
    • F02M67/00—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type
    • F02M67/02—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type the gas being compressed air, e.g. compressed in pumps
    • 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
    • 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
    • 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
    • F02M67/00—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type
    • F02M67/10—Injectors peculiar thereto, e.g. valve less type
    • F02M67/12—Injectors peculiar thereto, e.g. valve less type having valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/14—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with ball-shaped valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644—One-way valve
    • F16K31/0655—Lift valves
    • F16K31/0658—Armature and valve member being one single element
    • F16K31/0662—Armature and valve member being one single element with a ball-shaped valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetically Actuated Valves (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

The invention relates to the technical field of gas-assisted fuel supply of heavy oil piston engines, and particularly discloses a low-power-consumption driving fuel metering valve for fuel gas-assisted injection of a heavy oil piston engine.

Description

Low-power-consumption driving fuel metering valve for auxiliary injection of fuel gas of heavy oil piston engine
Technical Field
The invention belongs to the technical field of gas auxiliary fuel supply of heavy oil piston engines, and particularly relates to a low-power-consumption driving fuel metering valve for auxiliary injection of fuel gas of a heavy oil piston engine.
Background
The heavy oil piston engine has the advantages of small size, light weight, high power per liter, simple structure, convenience in operation and maintenance and the like, the piston engine is adopted by most of aviation unmanned aerial vehicles, the low-power aviation heavy oil piston engine at the present stage is basically two-stroke, the two-stroke mode is adopted for meeting the requirement of the aero-engine on high power-to-weight ratio, the two-stroke engine is simple in structure, few in moving parts, high in power per liter density and small in weight, and the requirement of the unmanned aerial vehicle power system on light weight and high power-to-weight ratio is met.
Because aviation heavy oil viscosity is big, the atomization effect is worse than gasoline, therefore, the heavy oil injector of heavy oil piston engine needs to have stronger atomization ability, the existing heavy oil injection valve has good atomization ability, guarantee reliable atomization and reasonable combustion of fuel oil, but a flux sleeve is generally arranged between an electromagnetic coil and a fixed magnetic core in the heavy oil injection valve, magnetic lines of force generated by the electromagnetic coil can be shunted by a flux sleeve, in order to guarantee the control characteristic, the drive power of the injection valve needs to be increased if the control performance of the valve is improved, but after the drive power consumption of the injection valve is increased, the cruising ability of the unmanned aerial vehicle is influenced.
Disclosure of Invention
The invention aims to provide a low-power consumption driving fuel metering valve for auxiliary injection of fuel gas of a heavy oil piston engine, which can drive the switch of an electromagnetic valve by adopting lower driving power consumption.
To achieve the above object, the present invention provides a low power consumption driving fuel metering valve for auxiliary injection of fuel gas of a heavy oil piston engine, comprising: the device comprises a shell, a fixed magnetic rod body, an electromagnetic coil rack, an electromagnetic coil, a valve core, a valve seat, a magnetic conduction sleeve, a metering flow guide hole sheet and a valve nozzle sleeve;
decide the magnet pole body, the magnetic conductive sleeve from top to bottom the order install in proper order in the casing, case, disk seat, measurement guiding hole piece, valve nozzle sleeve pipe from top to bottom install in proper order in the magnetic conductive sleeve, the electromagnetism coil former assemble in on the outer circumference of deciding the magnet pole body, solenoid twine in on the electromagnetism coil former and be equipped with and extend the electrode of casing, the case with decide the inside of the magnet pole body and be equipped with central runner, dispose sealed steel ball between case and the disk seat, decide the magnet pole body with clearance setting between the case and be equipped with locking spring between the two in order to lock the case, decide the magnet pole body with between the electromagnetism coil former with all be equipped with seal assembly between the magnetic conductive sleeve.
Preferably, in the above technical scheme, the valve further comprises a flow guide pipe, and the flow guide pipe is fixed on the valve nozzle sleeve.
Preferably, in the above technical scheme, the draft tube is composed of two sub draft tubes forming an included angle of 0-180 degrees.
Preferably, in the above technical scheme, the length of the two segments of the sub-draft tubes is 1-50 mm.
Preferably, in the above technical solution, the sealing assembly is an O-ring.
Preferably, in the above technical scheme, the upper end of the fixed magnet rod body and the lower end of the flux sleeve are both provided with O-ring seals.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the low-power-consumption driving fuel metering valve for auxiliary injection of fuel gas of the heavy oil piston engine, the electromagnetic coil and the fixed magnetic rod body are directly assembled, meanwhile, the sealing assembly is added for sealing to prevent oil leakage, the design enables the magnetic force line of the electromagnetic coil to completely act on the electromagnetic rod body, so that the valve can obtain stronger electromagnetic attraction force, the metering valve can be controlled to be closed or opened by adopting lower driving power, the driving power of the metering valve is reduced, the reliability and the service life of the metering valve are improved, the total power consumption of an application system is reduced, and the flight time of an unmanned aerial vehicle is prolonged.
2. The invention is a metering jet structure composed of a diversion metering hole sheet and a diversion pipe, wherein fluid passes through the diversion metering hole sheet, the flow direction of the fluid is changed under the guiding action of the diversion pipe, and a straight and smooth oil beam is obtained under the constraint of the diversion pipe. Is more favorable for the atomization effect of gas auxiliary injection. The product with the structure has high combustion efficiency on a high-power engine and more excellent emission.
Drawings
FIG. 1 is a block diagram of a low power consumption actuated fuel metering valve for fuel gas assisted injection for heavy oil piston engines in accordance with the present invention.
Description of the main reference numerals:
the valve comprises a flow guide pipe 1, a valve nozzle sleeve 2, a metering flow guide hole sheet 3, a valve seat 4, a valve core 5, a fixed magnetic rod body 6, a 7-O-shaped sealing ring, an 8-O-shaped sealing ring 9, a shell 10, an electrode 11, an electromagnetic coil 11, a 12-O-shaped sealing ring 13-O-shaped sealing ring 14, a magnetic conductive sleeve 15, a locking spring 16, an electromagnetic coil rack 17 and a sealing steel ball.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
As shown in fig. 1, the low-power-consumption driving fuel metering valve for auxiliary injection of fuel gas of a heavy oil piston engine in this embodiment includes a housing 9, a fixed magnetic rod 6, a solenoid coil frame 16, an electromagnetic coil 11, a valve core 5, a valve seat 4, a flux sleeve 14, a metering flux guide hole sheet 3, a valve nozzle sleeve 2 and a flow guide pipe 1, wherein the fixed magnetic rod 6 and the flux sleeve 14 are sequentially installed in the housing 9 from top to bottom, the valve core 5, the valve seat 4, the metering flux guide hole sheet 3 and the valve nozzle sleeve 2 are sequentially installed in the flux sleeve 14 from top to bottom, the solenoid coil frame 16 is assembled on the outer circumference of the fixed magnetic rod 6, the electromagnetic coil 11 is wound on the solenoid coil frame 16 and provided with an electrode 10 extending out of the housing, sealing assemblies are respectively arranged between the fixed magnetic rod 6 and the solenoid coil frame 16 and between the solenoid coil frame 16 and the flux sleeve 14. The guide pipe 1 is fixed on the valve nozzle sleeve 2, the diameter of the guide pipe is 0.5-5mm, the guide pipe 301 is preferably composed of two sub-guide pipes forming an included angle of 0-180 degrees, and the length of the two sub-guide pipes is 1-50 mm. A central flow passage is arranged inside the valve core 5 and the fixed magnetic rod body, a sealing steel ball 17 is arranged between the valve core 5 and the valve seat 4, a gap is arranged between the fixed magnetic rod body 6 and the valve core 5, a locking spring 15 is arranged between the fixed magnetic rod body 6 and the valve core 5 to keep the locking valve core 05, the sealing steel ball 17 and the valve seat 4 in a sealing state, and O-shaped sealing rings 8 and 12 are arranged between the fixed magnetic rod body 6 and the electromagnetic coil frame 16 and between the electromagnetic coil frame 16 and the magnetic conductive sleeve 14.
The working principle of the fuel metering valve is as follows: an electric driving loop is formed by an electrode 10 and a driving electromagnetic coil 11; the valve core 5, the fixed magnetic rod body 6, the magnetic sleeve 14 and the like form a magnetic loop, and the valve core 5 and the fixed magnetic rod body 6 are used as the only channels of the magnetic loop, so that the magnetic flux density passing through the valve core 5 and the fixed magnetic rod body 6 is improved, and the electromagnetic force is increased. The structure can effectively improve the efficiency of the electromagnetic coil and reduce the energy consumption; the response speed of the opening and closing of the electromagnetic valve is improved; when a control signal is applied to the electric drive loop, the valve core 5 overcomes the elasticity of the locking spring 15 for suction, and the electromagnetic valve is opened; after the control signal disappears, the electromagnetic valve is closed under the elastic force of the locking spring 15, and the whole electromagnetic valve control process is completed; the valve core 5, the locking spring 15, the valve seat 4 and the like form a valve body structure, and the fluid control is completed by matching with an electromagnetic circuit; the valve core 5 and the valve seat 4 form a sealing coupling piece, and a precise metering structure realizes dynamic sealing and metering output of different fluids; the guide pipe 1 guides the fuel oil to circulate, and realizes the quantitative control of the oil bundles; the O-shaped sealing ring 7, the O-shaped sealing ring 8, the O-shaped sealing ring 12 and the O-shaped sealing ring 13 realize the input and output of product fluid and external sealing, the fluid passes through the diversion metering hole piece, the flow direction of the fluid is changed under the guiding action of the diversion pipe, and straight and smooth oil bundles are obtained under the constraint of the diversion pipe. Is more favorable for the atomization effect of gas auxiliary injection. The product with the structure has high combustion efficiency on a high-power engine and more excellent emission.
In conclusion, in the embodiment of the invention, the electromagnetic coil and the fixed magnetic rod body are directly assembled, no magnetic sleeve is arranged between the electromagnetic coil and the fixed magnetic rod body for isolation, and meanwhile, the sealing assembly is added for sealing to prevent oil leakage.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (6)

1. A low power consumption actuated fuel metering valve for fuel gas assisted injection in a heavy oil piston engine comprising: the valve comprises a shell (9), a fixed magnet rod body (6), an electromagnetic coil rack (16), an electromagnetic coil (11), a valve core (5), a valve seat (4), a magnetic sleeve (14), a metering flow guide hole sheet (3) and a valve nozzle sleeve (2); it is characterized in that the preparation method is characterized in that,
the fixed magnet rod body (6) and the magnetic sleeve (14) are sequentially arranged in the shell (9) from top to bottom, the valve core (5), the valve seat (4), the metering guide hole piece (3) and the valve nozzle sleeve (2) are sequentially arranged in the magnetic sleeve (14) from top to bottom, the electromagnetic coil rack (16) is assembled on the outer circumference of the fixed magnet rod body (6), the electromagnetic coil (11) is wound on the electromagnetic coil rack (16) and provided with an electrode extending out of the shell (9), a central flow channel is arranged inside the valve core (5) and the fixed magnet rod body (6), a sealing steel ball (17) is arranged between the valve core (5) and the valve seat (4), a gap is arranged between the fixed magnet rod body (6) and the valve core (5), and a locking spring (15) is arranged between the fixed magnet rod body (6) and the valve core (5) to lock the valve core (5), and sealing components are arranged between the fixed magnetic rod body (6) and the electromagnetic coil rack (16) and between the electromagnetic coil rack (16) and the magnetic conductive sleeve (14).
2. The low-power-consumption driving fuel metering valve for auxiliary injection of fuel gas of the heavy-oil piston engine according to claim 1, further comprising a flow guide pipe (1), wherein the flow guide pipe (1) is fixed on the valve nozzle sleeve (2).
3. The low-power-consumption driving fuel metering valve for auxiliary injection of fuel gas of a heavy oil piston engine according to claim 1, characterized in that the flow guide pipe (1) consists of two sub flow guide pipes forming an included angle of 0-180 degrees.
4. The low-power-consumption driving fuel metering valve for auxiliary injection of fuel gas of the heavy oil piston engine according to claim 3, wherein the lengths of the two sub-flow guide pipes are 1-50 mm.
5. The low-power actuated fuel metering valve for assisted injection of fuel gas for a heavy-oil piston engine as recited in claim 1, wherein said seal assembly is an O-ring seal.
6. The low-power-consumption driving fuel metering valve for auxiliary injection of fuel gas of the heavy oil piston engine as recited in claim 1, wherein the upper end of the fixed magnet rod body (6) and the lower end of the magnetic conduction sleeve (14) are provided with O-shaped sealing rings.
CN201911096939.1A 2019-09-30 2019-11-11 Low-power-consumption driving fuel metering valve for auxiliary injection of fuel gas of heavy oil piston engine Pending CN110725992A (en)

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CN201910943842 2019-09-30
CN2019109438423 2019-09-30

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CN201911096010.9A Pending CN110953106A (en) 2019-09-30 2019-11-11 Gas auxiliary fuel supply system and method for direct injection engine in ignition type heavy oil cylinder
CN201911096939.1A Pending CN110725992A (en) 2019-09-30 2019-11-11 Low-power-consumption driving fuel metering valve for auxiliary injection of fuel gas of heavy oil piston engine
CN201911096935.3A Active CN110748447B (en) 2019-09-30 2019-11-11 Low-power-consumption driving gas metering valve for auxiliary injection of fuel gas of heavy oil piston engine
CN201911135319.4A Pending CN110848066A (en) 2019-09-30 2019-11-19 Ignition type two-stroke heavy oil piston engine

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CN201911096935.3A Active CN110748447B (en) 2019-09-30 2019-11-11 Low-power-consumption driving gas metering valve for auxiliary injection of fuel gas of heavy oil piston engine
CN201911135319.4A Pending CN110848066A (en) 2019-09-30 2019-11-19 Ignition type two-stroke heavy oil piston engine

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CN110953106A (en) * 2019-09-30 2020-04-03 广西擎芯动力科技有限公司 Gas auxiliary fuel supply system and method for direct injection engine in ignition type heavy oil cylinder
CN112051503A (en) * 2020-04-14 2020-12-08 中鹏机电有限公司 Multi-path commercial power monitoring device for diesel generating set
CN112502826B (en) * 2020-06-01 2021-11-02 重庆宗申航空发动机制造有限公司 Crankshaft arrangement form and assembly method of two-stroke oil-gas direct injection engine
CN111927669A (en) * 2020-08-03 2020-11-13 北京理工大学 Ignition type aviation heavy oil piston engine system and implementation method thereof
CN113090363A (en) * 2021-04-27 2021-07-09 广西卡迪亚科技有限公司 SCR urea supersonic speed jet atomization injection assembly
CN114320695B (en) * 2021-12-20 2023-05-09 上海工程技术大学 Air-entraining spraying atomizing air nozzle
CN114658579A (en) * 2022-02-25 2022-06-24 上海工程技术大学 Head guided entrained air jet gas nozzle

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US4984549A (en) * 1984-03-05 1991-01-15 Coltec Industries Inc. Electromagnetic injection valve
EP1219816A1 (en) * 2000-12-29 2002-07-03 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having a lift set sleeve
US9033264B2 (en) * 2004-09-28 2015-05-19 Robert Bosch Gmbh Fuel injector and method for assembling a fuel injector
CN101333992A (en) * 2008-07-30 2008-12-31 北京航空航天大学 Electromagnetic control type fuel injecting nozzle
CN102108928A (en) * 2010-09-08 2011-06-29 柳州源创电喷技术有限公司 Single-hole atomization electromagnetic valve type precise oil sprayer
CN105508112A (en) * 2016-01-27 2016-04-20 柳州源创电喷技术有限公司 High-speed electromagnetic valve type ejector with pulsation fluid metering function and long service life and H-shaped valve spool of high-speed electromagnetic valve type ejector

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CN110748447B (en) 2020-11-20
CN110748447A (en) 2020-02-04
CN110848066A (en) 2020-02-28
CN110953106A (en) 2020-04-03

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