CN107091172B - Straight-through type axially-inlet internal guide gas injection valve - Google Patents
Straight-through type axially-inlet internal guide gas injection valve Download PDFInfo
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- CN107091172B CN107091172B CN201710504675.3A CN201710504675A CN107091172B CN 107091172 B CN107091172 B CN 107091172B CN 201710504675 A CN201710504675 A CN 201710504675A CN 107091172 B CN107091172 B CN 107091172B
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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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
- F02M21/0251—Details of actuators therefor
- F02M21/0254—Electric actuators, e.g. solenoid or piezoelectric
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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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
- F02M21/0257—Details of the valve closing elements, e.g. valve seats, stems or arrangement of flow passages
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention aims to provide a straight-through type axially-inlet internal guide gas injection valve, which enables a valve core assembly to move away from a valve seat under the internal guide action of a guide pin in a mode that an electromagnet is electrified to attract an armature, so that the gas injection function of the gas valve is realized; a straight-through air supply mode is adopted, so that sufficient supply of fuel gas entering the valve body is ensured; the bottom end of the valve core is provided with a sealing ring belt so as to form an air inlet ring cavity, so that fuel gas enters along the axial direction, on one hand, the interference of the fuel gas is avoided, and on the other hand, the quality of the valve seat is lightened; the valve seat with the pressure stabilizing cavity can effectively inhibit fluctuation of the gas pressure in the gas injection valve, and ensures the stability of the gas injection pressure of the gas injection valve; according to the invention, the pressure balance hole is arranged at the guide pin, the pressure balance groove is arranged at the bottom plate, so that the air paths inside and outside the armature are balanced, no gas pressure difference between the upper part and the lower part of the armature is ensured, the response speed of the gas injection valve is further improved, and the control difficulty of the gas injection valve is reduced.
Description
Technical Field
The invention relates to a gas injection valve, in particular to a gas injection valve on a gas engine and a dual-fuel internal combustion engine.
Background
Along with the increasing severe energy and environmental situation and the increasing requirements of emission regulations, energy conservation and emission reduction become the necessary trend of the whole internal combustion engine industry, the internal combustion engine using the gas fuel is widely focused due to the good emission of the internal combustion engine, and the fuel gas injection valve is used as an important executive component in the gas supply system of the gas fuel internal combustion engine, so that the performance of the fuel gas injection valve directly influences the characteristics of the internal combustion engine. At present, in the actual working process of the gas injection valve, the response time of the gas injection valve is generally between a few milliseconds and tens of milliseconds according to the different rotation speeds of the internal combustion engine, namely, the gas injection valve needs to have high response speed to meet the requirement of rapid switching of the gas injection valve, meanwhile, the gas injection valve also needs to have a gas outlet cross section area as large as possible so as to ensure that the internal combustion engine obtains sufficient gas quantity, and in addition, the characteristics of the gas injection valve such as the quantity of the gas quantity supplied by the gas injection valve, the stability and the control precision of the injected gas pressure and the like can influence the performance of the internal combustion engine.
Disclosure of Invention
The invention aims to provide the straight-through type axially-inlet internal guide gas injection valve with high response speed, high control precision and stable injection pressure.
The purpose of the invention is realized in the following way:
the invention relates to an internal guide gas injection valve with straight-through type axial air inlet, which is characterized in that: the valve seat is fixed below the valve body and forms a valve space with the valve body, the electromagnet is positioned in the valve space and is fixed with the upper end of the valve body, a coil is wound in the electromagnet, the valve core assembly is positioned in the valve space and is arranged below the electromagnet, the valve core assembly comprises an armature, a spring seat, a bottom plate, a valve core and a guide pin, the armature, the bottom plate and the valve core are arranged from top to bottom and are connected together through fastening bolts, the spring seat is positioned outside the armature and forms an annular groove with the armature, the annular groove is arranged inside the electromagnet, two ends of a main reset spring are respectively arranged in the annular groove of the electromagnet and the annular groove of the spring seat, a guide pin is arranged at the center of the armature and extends into the electromagnet, an auxiliary reset spring is arranged in the electromagnet, two ends of the auxiliary reset spring are respectively contacted with the electromagnet and the guide pin, a pressure balance hole is arranged in the guide pin, a pressure balance groove is arranged on the bottom plate, the valve core is of a hollow structure, a central annular cavity is arranged on the valve seat below the valve core, the pressure balance hole, the pressure balance groove, a hollow part of the valve core and the central pressure balance cavity are communicated with the central pressure balance cavity to form an inner space, a sealing annular ring is arranged on the valve core, an air inlet ring cavity is formed, an air outlet cavity is arranged on the air outlet cavity is formed, the air outlet cavity is arranged at the air outlet cavity is arranged below the air outlet cavity, and the air outlet is arranged below the air outlet.
The invention may further include:
1. the outer end of the valve seat is provided with an end pressure stabilizing cavity.
2. An air inlet is formed between the upper part of the electromagnet and the valve body, an air inlet cavity is formed between the middle lower part of the electromagnet and the valve body, a flow guide cavity is formed between the valve core assembly and the valve body, the air inlet cavity and the flow guide cavity are communicated and form an external space, the external space is communicated with the internal space, and an axial air inlet hole is formed in the valve core;
the fuel gas vertically flows into the air inlet cavity through the air inlet, a part of the fuel gas flows into the inner space and the central pressure stabilizing cavity of the valve seat, the rest of the fuel gas continuously and vertically flows, and under the flow guiding effect of the flow guiding cavity, a part of the fuel gas flows through the axial air inlet hole to fill the air inlet annular cavity on the valve core, and the other part of the fuel gas flows into the end pressure stabilizing cavity at the outer end of the valve seat;
when the coil is not electrified in the working process of the gas injection valve, under the pretightening force of the main reset spring and the auxiliary reset spring, the sealing ring belt on the valve core is tightly matched with the upper surface of the valve seat, and the gas fills the external space and the internal space inside the valve body of the gas injection valve; after the coil is electrified, the armature is acted by upward electromagnetic force, the valve core assembly moves upward after overcoming the pretightening force of the main reset spring and the auxiliary reset spring, the valve core is separated from the surface of the valve seat, the gas injection valve is opened, the gas path is opened, the gas flows in from the axial air inlet hole on the valve core, passes through the air inlet ring cavity, passes through the gap between the valve core and the valve seat, and finally flows out vertically after being guided by the gas outlet; after the coil is powered off, under the pretightening force of the main reset spring and the auxiliary reset spring, the armature moves downwards, the valve core assembly moves downwards integrally until the surface of the valve core is attached to the surface of the valve seat, the valve returns to the initial position again, the gas injection valve is closed, and the gas path is closed.
The invention has the advantages that: in the working process, the valve core assembly moves away from the valve seat under the inner guiding action of the guide pin in a mode that the electromagnet is electrified to attract the armature, so that the gas injection function of the gas valve is realized; the invention adopts a straight-through air supply mode to ensure sufficient supply of fuel gas entering the valve body; the bottom end of the valve core is provided with a sealing ring belt so as to form an air inlet ring cavity, so that fuel gas is prevented from entering along the axial direction, the gas path balance is ensured, the valve seat quality is lightened, and the response speed is improved; the invention adopts the valve seat structure with the pressure stabilizing cavity, which can effectively inhibit the fluctuation of the gas pressure in the gas injection valve and ensure the stability of the gas injection pressure of the gas injection valve; according to the invention, the pressure balance hole is arranged at the guide pin, the pressure balance groove is arranged at the bottom plate, so that the internal and external air paths of the armature are balanced, no gas pressure difference between the upper and lower parts of the armature is ensured, the armature is prevented from receiving additional axial force, the response speed of the gas injection valve is further improved, and the control difficulty of the gas injection valve is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the valve core assembly of the present invention;
FIG. 3 is a gas path diagram of the present invention;
FIG. 4 is a three-dimensional block diagram of a valve core of the present invention;
fig. 5 is a top view of a valve seat of the present invention.
Detailed Description
The invention is described in more detail below, by way of example, with reference to the accompanying drawings:
with reference to fig. 1-5, fig. 1 is a schematic diagram of an overall structure of a straight-through type axial air inlet internal guide gas injection valve, which comprises a valve body 1, an electromagnet 2, a coil 3, a main return spring 4, an auxiliary return spring 6, a valve core assembly 7, a sealing rubber ring 9 and a valve seat 10. The electromagnet 2 is connected with the valve body 1 through threads above the electromagnet, so that the electromagnet is fixed at the central position above the valve body 1, the coil 3 is wound in a ring groove inside the electromagnet 2, the valve core assembly 7 and the valve seat 10 are sequentially arranged below the electromagnet 2 from top to bottom, the valve seat 10 is provided with a bolt hole 28, the valve seat 10 and the valve body 1 are fixedly connected together through bolts, the matching surfaces between the valve seat 10 and the valve body 1 are sealed through sealing rubber rings 9, the valve seat 10 is provided with pressure stabilizing cavities 5 at the central position and two ends close to a sealing ring belt 16, the pressure stabilizing cavity 5 at the central position of the valve seat 10 is communicated with a gas space inside the valve core assembly 7, and the pressure stabilizing cavities 5 at the two ends of the valve seat 10 are communicated with a diversion cavity inside the valve body 1; the pressure stabilizing cavity 5 on the valve seat 10 can effectively inhibit the fluctuation of the gas pressure caused by the gas injection valve in the working process, and ensures the stability of the gas injection pressure of the gas injection valve.
As shown in fig. 2, the valve core assembly 7 of the straight-through type axial air inlet internal guide gas injection valve consists of a guide pin 11, an armature 12, a spring seat 13, a bottom plate 14, a valve core 15, a clamp spring 18, a gasket 19 and a fastening bolt 21, wherein the armature 12 is connected with the bottom plate 14 and the valve core 15 through the fastening bolt 21, a layer of gasket 19 is arranged between the armature 12 and the bottom plate 14, four pressure balance grooves 20 are formed above the bottom plate 14, the spring seat 13 is arranged above the bottom plate 14, the side surface of the inside of the spring seat 13 is contacted with the side surface of the armature 12, two ends of a main return spring 4 are respectively positioned in annular grooves of an electromagnet 2 and the spring seat 13, the center of the electromagnet 2 is provided with a straight groove with a certain depth, the guide pin 11 between the electromagnet 2 and the armature 12 is arranged in the straight groove, the auxiliary return spring 6 is arranged between the upper part of the guide pin 11 and the electromagnet 2, the center of the guide pin 11 is provided with a pressure balance hole 17 which is arranged at the center of the armature 12 and is fixed with the armature 12 by using a clamp spring 18, the pressure balance hole 17 at the center of the guide pin 11 is matched with the pressure balance groove 20 on the bottom plate 14, so that the inner space and the outer space of the valve core assembly 7 are communicated, the inner and outer gas paths are balanced, the inner and outer gas paths of the valve core assembly 7 have no pressure difference, the valve core 15 is prevented from being subjected to additional axial force during movement, the valve core assembly 7 is integrally arranged below the electromagnet 2.
As shown in fig. 3, in an internal guide gas injection valve with straight-through axial air intake, firstly, gas enters an air inlet 22, flows vertically into an air inlet cavity 23 in a valve body 1 from the air inlet 22, and due to the existence of a pressure balance hole 17 on a guide pin 11 and a pressure balance groove 20 on a bottom plate 14, the internal space of a valve core assembly 7 is communicated with the internal space of the valve body 1, a part of the gas flows into the internal space of the valve core assembly 7, the internal space of the valve core assembly 7 and a pressure stabilizing cavity 5 in the center of a valve seat 10 are filled, the internal and external air paths reach balance, no pressure difference exists between the internal and the external of the valve core assembly 7, and the valve core assembly 7 is prevented from being subjected to additional axial force; under the flow guiding effect of the flow guiding cavity 24, one part of the fuel gas flows through the axial air inlet hole 25 on the valve core 15, fills the air inlet annular cavity 26 on the valve core 15, and the other part of the fuel gas flows into the pressure stabilizing cavities 5 at two ends of the valve seat 10, so that the whole circulation process of the fuel gas finally fills the whole space in the valve body 1.
In the working process of the gas injection valve, when the coil 3 is not electrified, under the pretightening force of the main reset spring 4 and the auxiliary reset spring 6, the valve core assembly 7 is kept motionless at the initial position, the sealing ring belt 16 on the valve core 15 in the valve core assembly 7 is tightly matched with the upper surface of the valve seat 10, at the moment, the ring cavity near the gas outlet ring belt 8 is not communicated with the inner space of the valve body 1, and the gas is filled in the whole space inside the valve body 1 of the gas injection valve. After the coil 3 is electrified, the electromagnet 2 and the armature 12 are magnetized, the armature 12 is acted by upward electromagnetic force, as the fastening bolt 21 fixes all components including the armature 12 in the valve core assembly 7 together, the valve core assembly 7 is also acted by upward acting force, after overcoming the pretightening force of the main reset spring 4 and the auxiliary reset spring 6, the valve core 15 which moves upward together with the valve core is separated from the surface of the valve seat 10, at the moment, the gas injection valve is opened, the gas channel is opened, the gas flows in through the axial air inlet holes 25 on the valve core 15, the gas inlet annular cavity 26 with a certain depth is arranged around the multi-channel sealing annular band 16, and finally, the gas flows out vertically after being guided through the air outlet 27 through the gap between the valve core 15 and the valve seat 10, the multi-channel annular band is adopted between the valve core 15 and the valve seat 10, the surface is sealed, the pressure is stabilized, the impact can be reduced due to the wider annular band area, the reliability is improved, and the surrounding gas is uniformly ventilated in the flowing process due to the pressure stabilizing cavity 5 arranged near the two ends of the gas inlet annular cavity 26 and the center position of the valve seat 10; after the fuel gas is sprayed out a certain amount, the coil 3 is powered off, the electromagnetic force born by the armature 12 disappears, the armature 12 moves downwards under the pretightening force of the main reset spring 4 and the auxiliary reset spring 6 between the electromagnet 2 and the spring seat 13 and between the guide pin 11, the valve core assembly 7 moves downwards, and simultaneously the valve core 15 is driven to move downwards until the surface of the valve core 15 is attached to the surface of the valve seat 10, the valve returns to the initial position again, the fuel gas injection valve is closed, and the gas path is closed.
The working process can be known as follows: according to the through type axially-inlet internal guide gas injection valve, the armature 12 is attracted by electrifying the electromagnet 2, so that the valve core assembly 7 moves away from the valve seat 10 under the internal guide action of the guide pin 11, and the gas injection function of the gas valve is realized; the invention adopts a straight-through air supply mode to ensure sufficient supply of the fuel gas entering the valve body 1; the bottom end of the valve core 15 is provided with a sealing ring belt 16 so as to form an air inlet ring cavity 26, so that fuel gas enters axially, on one hand, the interference of the fuel gas is avoided, the balance of the air path is ensured, on the other hand, the quality of the valve seat 10 is reduced, and the response speed is improved; the invention adopts the valve seat 15 structure with the pressure stabilizing cavity 5, which can effectively inhibit the fluctuation of the gas pressure in the gas injection valve and ensure the stability of the gas injection pressure of the gas injection valve; according to the invention, the pressure balance hole is arranged at the guide pin 11, the pressure balance groove is arranged at the bottom plate 14, so that no gas pressure difference exists between the upper part and the lower part of the armature 12, the armature 12 in the valve core assembly 7 is prevented from receiving extra axial force, the response speed of the gas injection valve is further improved, and the control difficulty of the gas injection valve is reduced.
The invention relates to a straight-through type axially-inlet internal guide gas injection valve which comprises a valve body, an electromagnet, a coil, a main reset spring, an auxiliary reset spring, a valve core assembly, a sealing rubber ring and a valve seat, wherein the valve body is arranged on the valve body; the electromagnet is connected with the valve body through threads above the electromagnet, so that the electromagnet is fixed at the central position above the valve body, the coil is wound in the annular groove inside the electromagnet, the valve core assembly and the valve seat are sequentially arranged below the electromagnet from top to bottom, the valve seat and the valve body are fixedly connected together through bolts, and the matching surface between the valve seat and the valve body is sealed through the sealing rubber ring; the valve core assembly consists of a guide pin, an armature, a spring seat, a gasket, a bottom plate, a clamp spring, a fastening bolt and a valve core; the armature is connected with the bottom plate and the valve core together through bolts, a layer of gasket is arranged between the armature and the bottom plate, the spring seat is arranged above the bottom plate, the side surface of the inside of the spring seat is contacted with the side surface of the armature, the two ends of the main reset spring are respectively positioned in annular grooves of the electromagnet and the spring seat, a straight groove with a certain depth is formed in the center of the electromagnet, a guide pin between the electromagnet and the armature is arranged inside the straight groove, an auxiliary reset spring is arranged between the guide pin and the electromagnet and is arranged at the center of the armature, the guide pin and the armature are fixed by using the clamp spring, the valve core consists of a valve core main body and a sealing annular belt, and the valve core assembly is integrally arranged below the electromagnet.
The valve body structure is an axial straight-through structure. The lower end of the valve core is a sealing ring belt with an axial air inlet cavity. The armature in the valve core assembly is provided with a guide pin at its inner central bore. The valve seat is provided with pressure stabilizing cavities at the center and at the two ends close to the sealing ring belt, the pressure stabilizing cavity at the center of the valve seat is communicated with the gas space inside the valve core assembly, and the pressure stabilizing cavities at the two ends of the valve seat are communicated with the flow guiding cavity in the valve body. Four pressure balance grooves are formed in the upper portion of the bottom plate, and a pressure balance hole is formed in the center of the guide pin.
Claims (3)
1. An internal guiding gas injection valve of straight-through type axial air intake is characterized in that: the valve seat is fixed below the valve body and forms a valve space with the valve body, the electromagnet is positioned in the valve space and is fixed with the upper end of the valve body, a coil is wound in the electromagnet, the valve core assembly is positioned in the valve space and is arranged below the electromagnet, the valve core assembly comprises an armature, a spring seat, a bottom plate, a valve core and a guide pin, the armature, the bottom plate and the valve core are arranged from top to bottom and are connected together through fastening bolts, the spring seat is positioned outside the armature and forms an annular groove with the armature, the annular groove is arranged inside the electromagnet, two ends of a main reset spring are respectively arranged in the annular groove of the electromagnet and the annular groove of the spring seat, a guide pin is arranged at the center of the armature and extends into the electromagnet, an auxiliary reset spring is arranged in the electromagnet, two ends of the auxiliary reset spring are respectively contacted with the electromagnet and the guide pin, a pressure balance hole is arranged in the guide pin, a pressure balance groove is arranged on the bottom plate, the valve core is of a hollow structure, a central annular cavity is arranged on the valve seat below the valve core, the pressure balance hole, the pressure balance groove, a hollow part of the valve core and the central pressure balance cavity are communicated with the central pressure balance cavity to form an inner space, a sealing annular ring is arranged on the valve core, an air inlet ring cavity is formed, an air outlet cavity is arranged on the air outlet cavity is formed, the air outlet cavity is arranged at the air outlet cavity is arranged below the air outlet cavity, and the air outlet is arranged below the air outlet.
2. The straight-through axially-admitted internal pilot gas injection valve of claim 1, wherein: the outer end of the valve seat is provided with an end pressure stabilizing cavity.
3. An internal pilot gas injection valve for straight through axial intake according to claim 1 or 2, characterized in that: an air inlet is formed between the upper part of the electromagnet and the valve body, an air inlet cavity is formed between the middle lower part of the electromagnet and the valve body, a flow guide cavity is formed between the valve core assembly and the valve body, the air inlet cavity and the flow guide cavity are communicated and form an external space, the external space is communicated with the internal space, and an axial air inlet hole is formed in the valve core;
the fuel gas vertically flows into the air inlet cavity through the air inlet, a part of the fuel gas flows into the inner space and the central pressure stabilizing cavity of the valve seat, the rest of the fuel gas continuously and vertically flows, and under the flow guiding effect of the flow guiding cavity, a part of the fuel gas flows through the axial air inlet hole to fill the air inlet annular cavity on the valve core, and the other part of the fuel gas flows into the end pressure stabilizing cavity at the outer end of the valve seat;
when the coil is not electrified in the working process of the gas injection valve, under the pretightening force of the main reset spring and the auxiliary reset spring, the sealing ring belt on the valve core is tightly matched with the upper surface of the valve seat, and the gas fills the external space and the internal space inside the valve body of the gas injection valve; after the coil is electrified, the armature is acted by upward electromagnetic force, the valve core assembly moves upward after overcoming the pretightening force of the main reset spring and the auxiliary reset spring, the valve core is separated from the surface of the valve seat, the gas injection valve is opened, the gas path is opened, the gas flows in from the axial air inlet hole on the valve core, passes through the air inlet ring cavity, passes through the gap between the valve core and the valve seat, and finally flows out vertically after being guided by the gas outlet; after the coil is powered off, under the pretightening force of the main reset spring and the auxiliary reset spring, the armature moves downwards, the valve core assembly moves downwards integrally until the surface of the valve core is attached to the surface of the valve seat, the valve returns to the initial position again, the gas injection valve is closed, and the gas path is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710504675.3A CN107091172B (en) | 2017-06-28 | 2017-06-28 | Straight-through type axially-inlet internal guide gas injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710504675.3A CN107091172B (en) | 2017-06-28 | 2017-06-28 | Straight-through type axially-inlet internal guide gas injection valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107091172A CN107091172A (en) | 2017-08-25 |
| CN107091172B true CN107091172B (en) | 2023-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710504675.3A Active CN107091172B (en) | 2017-06-28 | 2017-06-28 | Straight-through type axially-inlet internal guide gas injection valve |
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| CN (1) | CN107091172B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000110666A (en) * | 1998-09-30 | 2000-04-18 | Toyota Motor Corp | Gaseous fuel injection valve |
| CA2814458A1 (en) * | 2010-10-19 | 2012-04-26 | Kawasaki Jukogyo Kabushiki Kaisha | Fuel gas supply system of gas engine |
| JP2012225201A (en) * | 2011-04-15 | 2012-11-15 | Denso Corp | Fuel injection device and fuel supply system using the same |
| JP2015124612A (en) * | 2013-12-25 | 2015-07-06 | スズキ株式会社 | Fuel injection valve |
| CN204738888U (en) * | 2015-07-10 | 2015-11-04 | 重庆红江机械有限责任公司 | Gas injection valve for engine |
| CN206903774U (en) * | 2017-06-28 | 2018-01-19 | 哈尔滨工程大学 | A kind of interior guiding fuel gas injection valve of through type axial admission |
-
2017
- 2017-06-28 CN CN201710504675.3A patent/CN107091172B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000110666A (en) * | 1998-09-30 | 2000-04-18 | Toyota Motor Corp | Gaseous fuel injection valve |
| CA2814458A1 (en) * | 2010-10-19 | 2012-04-26 | Kawasaki Jukogyo Kabushiki Kaisha | Fuel gas supply system of gas engine |
| JP2012225201A (en) * | 2011-04-15 | 2012-11-15 | Denso Corp | Fuel injection device and fuel supply system using the same |
| JP2015124612A (en) * | 2013-12-25 | 2015-07-06 | スズキ株式会社 | Fuel injection valve |
| CN204738888U (en) * | 2015-07-10 | 2015-11-04 | 重庆红江机械有限责任公司 | Gas injection valve for engine |
| CN206903774U (en) * | 2017-06-28 | 2018-01-19 | 哈尔滨工程大学 | A kind of interior guiding fuel gas injection valve of through type axial admission |
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| Publication number | Publication date |
|---|---|
| CN107091172A (en) | 2017-08-25 |
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