CN114060173A - Rotary electromagnet driven straight-through gas injection valve with integrated valve rod reset mechanism - Google Patents

Rotary electromagnet driven straight-through gas injection valve with integrated valve rod reset mechanism Download PDF

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Publication number
CN114060173A
CN114060173A CN202111548424.8A CN202111548424A CN114060173A CN 114060173 A CN114060173 A CN 114060173A CN 202111548424 A CN202111548424 A CN 202111548424A CN 114060173 A CN114060173 A CN 114060173A
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CN
China
Prior art keywords
valve
rotary
gas injection
valve rod
rotary electromagnet
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Pending
Application number
CN202111548424.8A
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Chinese (zh)
Inventor
贺帅峰
丁顺良
刘津津
高建设
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Zhengzhou University
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Zhengzhou University
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Priority to CN202111548424.8A priority Critical patent/CN114060173A/en
Publication of CN114060173A publication Critical patent/CN114060173A/en
Pending legal-status Critical Current

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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
    • 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
    • F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
    • F02M21/0215—Mixtures of gaseous fuels; Natural gas; Biogas; Mine gas; Landfill gas
    • 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
    • F02M21/0272—Ball valves; Plate valves; Valves having deformable or flexible parts, e.g. membranes; Rotatable valves
    • 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)
  • 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)
  • Analytical Chemistry (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

The invention discloses a rotary electromagnet driven straight-through gas injection valve with an integrated valve rod resetting mechanism, and belongs to the technical field of gas injection valve structures. A rotary electromagnet in a valve body of a straight-through gas injection valve driven by a rotary electromagnet and provided with an integrated valve rod resetting mechanism is fixedly connected with a valve rod, a baffle plate in the middle of the valve body is provided with a flow guide hole, and the baffle plate is provided with a valve rod limiting resetting mechanism. The bottom of the valve body is provided with a valve core, and the valve core is fixedly connected with the valve rod through a connecting mechanism. The valve core is provided with a plurality of pressure balance holes, and the top of the valve body is provided with an air inlet hole. The bottom of case is provided with the direction base, and direction base and valve body fixed connection are provided with the venthole with pressure balance hole one-to-one on the case on the direction base. The guide base is connected with the valve core through the valve seat. The straight-through gas injection valve driven by the rotary electromagnet and provided with the integrated valve rod resetting mechanism can solve the problems of complex structure and low reliability of the conventional gas injection valve, and has the advantages of high response speed, long-term and stable injection and sufficient injection flow.

Description

Rotary electromagnet driven straight-through gas injection valve with integrated valve rod reset mechanism
Technical Field
The invention relates to the technical field of gas injection valve structures, in particular to a through type gas injection valve with an integrated valve rod resetting mechanism and driven by a rotary electromagnet.
Background
In recent years, petroleum has been increasingly stored worldwide as a short-term non-renewable energy source. With the economic development and social progress of China, the consumption of petroleum resources is increasingly promoted, and China is used as a poor oil country and has insufficient reserves; on the contrary, the natural gas reserves in China are considerable, and with the increasing strictness of ship emission regulations, the development of natural gas engines in various countries and various known engine manufacturers is greatly improved. The gas injection valve is one of the core parts of the engine injection system, and the development of the gas injection valve which is high-efficiency, reliable and suitable for a natural gas engine and can meet the severe working conditions is urgent. The existing injection valve has a complex structure and low reliability, and can not meet the working requirements of an engine under extremely severe working conditions.
Disclosure of Invention
The invention aims to provide a rotary electromagnet driven straight-through gas injection valve with an integrated valve rod resetting mechanism, which solves the problems of complex structure and low reliability of the conventional gas injection valve.
In order to achieve the purpose, the invention provides a rotary electromagnet driven straight-through gas injection valve with an integrated valve rod resetting mechanism, which comprises a valve body, wherein a rotary electromagnet is arranged inside the valve body and fixedly connected with a valve rod, and the rotary electromagnet drives the valve rod to rotate; the middle part of the valve body is provided with a partition plate, the partition plate is provided with a plurality of flow guide holes, the valve rod is rotatably connected with the partition plate, and the partition plate is provided with a valve rod limiting and resetting mechanism which has a limiting and resetting effect on the rotation of the valve rod; the bottom of the valve body is provided with a valve core, and the valve core is fixedly connected with the valve rod through a connecting mechanism; the valve core is provided with a plurality of pressure balance holes, the top of the valve body is provided with an air inlet hole, and the air inlet hole and the air outlet hole are both communicated with an air cavity inside the valve body; the bottom of the valve core is provided with a guide base, the guide base is fixedly connected with the valve body, the guide base is provided with air outlet holes which are in one-to-one correspondence with the pressure balance holes in the valve core, the guide base is provided with a valve seat, and the valve core is sleeved outside the valve seat and is rotatably connected with the valve seat.
Preferably, the shell of the rotary electromagnet is connected with the valve body, a base is fixedly arranged below the shell of the rotary electromagnet, and the base is rotatably connected with the valve rod.
Preferably, one side of the base close to the valve rod is provided with an L-shaped lubricating groove, the valve rod is provided with a sealing ring for sealing the valve rod and the base, the sealing ring is positioned in the lubricating groove, and the lubricating groove is internally provided with lubricating oil for lubricating the sealing ring.
Preferably, the valve rod limiting and resetting mechanism comprises limiting rocker arms symmetrically arranged on the valve rod, rotary blocks are arranged on the ends of the limiting rocker arms, the rotary blocks are located in rotary grooves formed in the partition plates and slide in the rotary grooves, stop blocks are fixedly arranged on the partition plates and symmetrically arranged in the rotary grooves, one side of each rotary block is connected with one of the stop blocks through a resetting elastic piece, the other side of each rotary block is connected with the other stop block through a reverse elastic piece, and the resetting elastic pieces and the reverse elastic pieces are arranged at intervals.
Preferably, lubricating oil is arranged in the rotary groove, and the rotary block slides in the rotary groove through the lubricating oil.
Preferably, the return elastic element comprises a main return spring and an auxiliary return spring, one end of the main return spring is sleeved on the spring positioning rotary element arranged on the rotary block, and the other end of the main return spring is sleeved on the forward limiting block arranged on the stop block; the auxiliary reset spring is positioned in the main reset spring, one end of the auxiliary reset spring is sleeved on the spring positioning rotating piece which has a guiding effect on the auxiliary reset spring and the main reset spring, and the other end of the auxiliary reset spring is connected with the forward limiting block.
Preferably, the reverse elastic part comprises a reverse damping spring, one end of the reverse damping spring is sleeved on a reverse limiting block which has a guiding effect on the reverse damping spring, and the other end of the reverse damping spring is connected with the rotary block.
Preferably, an armature is fixedly arranged below the valve rod limiting and resetting mechanism, the armature is sleeved on the valve rod, a bottom plate is fixedly arranged below the armature, and the valve core is positioned below the bottom plate and fixedly connected with the bottom plate.
Preferably, a butterfly gasket is arranged between the armature and the bottom plate, and the armature, the bottom plate and the valve core are fixedly connected through bolts; the bottom plate is provided with a pressure balance groove, and the valve core is provided with a pressure balance hole.
Preferably, a sealing ring is arranged between the valve core and the valve seat, the sealing ring is arranged between the valve core and the guide base, a sealing gasket is arranged between a stepped surface at the center of the guide base and a stepped shaft of the valve seat, and the sealing ring is arranged between the guide base and the valve body.
The straight-through gas injection valve with the integrated valve rod resetting mechanism driven by the rotary electromagnet has the advantages and positive effects that:
1. the gas injection valve is driven by the self-resetting rotary electromagnet, and the opening and closing of the gas injection valve are controlled by rotary motion, so that the impact of the traditional injection valve opening mode on the injection valve is avoided, and the service life and the reliability of the gas injection valve are improved.
2. The gas injection valve structure is the symmetry basically and sets up the structure, and the venthole is the distribution of circumference array on the direction base, adopts the fretwork design and adopts light-duty alloy material on some rotating members, has reduced the quality of rotating member on the basis that does not influence gas injection valve self performance to reduce the inertial force that receives in the rotation process, improve the response speed of injection valve.
3. The valve rod limiting and resetting mechanism is integrated and arranged on the partition plate, so that the structure of the gas injection valve is simplified. Lubricating oil is filled in the rotary groove on the partition plate, so that the friction force between the rotary block and the rotary groove can be reduced.
4. The pressure balance grooves with a certain number are formed in the bottom plate, and the valve rod is prevented from being influenced by axial force in the process of installation when the valve rod is rotated.
5. The mode that the axial air inlet hole directly admits air is adopted, the air inflow coefficient is increased, the air inflow is increased, the air flow interference can be avoided, and the air injection efficiency of the injection valve is effectively improved.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural view of an embodiment of a rotary electromagnet driven straight-through gas injection valve with an integrated valve rod resetting mechanism according to the present invention;
FIG. 2 is a schematic top view of a valve stem resetting mechanism of an embodiment of a rotary electromagnet driven straight-through gas injection valve with an integrated valve stem resetting mechanism of the present invention;
FIG. 3 is a schematic perspective view of a valve stem resetting mechanism of an embodiment of a rotary electromagnet driven straight-through gas injection valve with an integrated valve stem resetting mechanism of the present invention;
FIG. 4 is a schematic view of a valve core and valve stem connection structure of an embodiment of a rotary electromagnet driven straight-through gas injection valve with an integrated valve stem reset mechanism according to the present invention;
FIG. 5 is a schematic diagram of a top view of a valve element of an embodiment of a rotary electromagnet driven straight-through gas injection valve with an integrated valve stem resetting mechanism according to the present invention;
FIG. 6 is a schematic view of a valve core of an embodiment of a rotary electromagnet driven straight-through gas injection valve with an integrated valve rod resetting mechanism according to the present invention;
FIG. 7 is a schematic top view of a guide base of an embodiment of a rotary electromagnet driven straight through gas injection valve with integrated valve stem resetting mechanism of the present invention;
FIG. 8 is a schematic perspective view of a guide base of an embodiment of a rotary electromagnet driven straight-through gas injection valve with an integrated valve stem resetting mechanism of the present invention;
fig. 9 is a schematic view of gas path guidance of an embodiment of a rotary electromagnet driven straight-through gas injection valve with an integrated valve rod resetting mechanism according to the present invention.
Reference numerals
1. A valve body; 2. rotating the electromagnet; 3. a valve stem; 4. a base; 5. a partition plate; 6. a turning block; 7. an armature; 8. a base plate; 9. butterfly gaskets; 10. a valve core; 11. a valve seat; 12. a guide base; 13. an air inlet; 14. a flow guide hole; 15. an air cavity; 16. a pressure balance hole; 17. an air outlet; 18. a seal ring; 19. a gasket; 20. a stopper; 21. a forward limiting block; 22. a spring positioning rotating member; 23. a main return spring; 24. an auxiliary return spring; 25. a reverse damping spring; 26. a reverse limiting block; 27. and limiting the rocker arm.
Detailed Description
The technical solution of the present invention is further illustrated by the accompanying drawings and examples.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Examples
Fig. 1 is a schematic structural diagram of an embodiment of a rotary electromagnet-driven straight-through gas injection valve with an integrated valve rod resetting mechanism according to the invention. As shown in the figure, the straight-through gas injection valve driven by the rotary electromagnet and provided with the integrated valve rod resetting mechanism comprises a valve body 1, wherein the rotary electromagnet 2 is arranged inside the valve body 1, the rotary electromagnet 2 is of an existing structure, namely, a coil is arranged outside the electromagnet, after the coil is electrified, the electromagnet rotates in the coil, and a shell covers the outside of the coil. The shell of the rotary electromagnet 2 is connected with the valve body 1 through screw threads. The top of the valve body 1 is uniformly provided with a plurality of air inlets 13, and the air inlets 13 are communicated with an air cavity 15 inside the valve body 1. The electromagnet in the rotary electromagnet 2 is fixedly connected with the valve rod 3, and the electromagnet drives the valve rod 3 to synchronously rotate. A base 4 is arranged below the shell of the rotary electromagnet 2, and the base 4 is fixedly connected with the shell through a screw. The base 4 is rotatably connected with the valve rod 3. One side that base 4 is close to valve rod 3 is provided with the lubrication groove of L type, is provided with on the valve rod 3 and carries out the sealing washer sealed with valve rod 3 and base 4, and the sealing washer is located the lubrication groove. And lubricating oil for lubricating the sealing ring is arranged in the lubricating groove. The sealing ring is made of the existing wear-resistant sealing ring, so that the wear resistance is good, and the service life of the sealing ring is prolonged. Lubricating oil has better lubricity to the sealing washer, under the prerequisite of guaranteeing the leakproofness between valve rod 3 and the base 4, reduces pivoted frictional force.
The middle part of the valve body 1 is provided with a clapboard 5, and the clapboard 5 and the valve body 1 are of an integral structure. The clapboard 5 is provided with a plurality of diversion holes 14. The valve rods 3 are positioned in the middle of the partition plate 5 and are rotatably connected with the partition plate 5, and the diversion holes 14 are distributed around the valve rods 3 in a circumferential array. The diversion hole 14 has the function of rectifying and guiding the fuel gas entering the valve body 1.
Fig. 2 is a schematic view of a valve rod resetting mechanism of an embodiment of a rotary electromagnet-driven straight-through gas injection valve with an integrated valve rod resetting mechanism according to the present invention, and fig. 3 is a schematic view of a three-dimensional structure of a valve rod resetting mechanism of an embodiment of a rotary electromagnet-driven straight-through gas injection valve with an integrated valve rod resetting mechanism according to the present invention. As shown in the figure, a valve rod limit resetting mechanism having a limit resetting function for the rotation of the valve rod 3 is arranged on the partition plate 5. The valve rod limiting and resetting mechanism comprises limiting rocker arms 27 symmetrically arranged on the valve rod 3, and the end heads of the limiting rocker arms 27 are fixedly provided with rotary blocks 6. The rotary block 6 is positioned in a rotary groove formed in the partition plate 5 and slides in the rotary groove, lubricating oil is arranged in the rotary groove, and the rotary block 6 slides in the rotary groove through the lubricating oil, so that the friction force between the rotary block 6 and the rotary groove when sliding is reduced.
The baffle plate 5 is provided with a stop block 20, and the stop block 20 is fixed on the baffle plate 5 through screws. The two stoppers 20 are symmetrically arranged in the rotary groove, and the two stoppers 20 and the two limit rocker arms 27 are in a cross structure. One side of the rotary block 6 is connected with one stop block 20 through a reset elastic piece, the other side of the rotary block 6 is connected with the other stop block 20 through a reverse elastic piece, and the reset elastic piece and the reverse elastic piece are arranged at intervals.
The return elastic element comprises a main return spring 23 and an auxiliary return spring 24, and one end of the main return spring 23 is sleeved on the spring positioning rotary element 22 arranged on the rotary block 6. The spring positioning rotating member 22 is positioned in the rotating groove, and the valve rod 3, the limiting rocker arm 27, the rotating block 6 and the spring positioning rotating member 22 are of an integrated structure. The other end of the main return spring 23 is sleeved on a positive limiting block 21 arranged on the stop block 20. The auxiliary return spring 24 is located inside the main return spring 23, and one end of the auxiliary return spring 24 is sleeved on the spring positioning rotating member 22. The other end of the auxiliary return spring 24 is connected with the positive limiting block 21. The spring positioning rotating member 22 has a guiding effect on the main return spring 23 and the auxiliary return spring 24, so that the main return spring 23 and the auxiliary return spring 24 are prevented from moving in the rotating groove, and the stability of resetting is improved. The spring positioning rotating part 22 and the forward limiting block 21 have a limiting effect on the rotation of the valve rod 3, and damage to the gas injection valve due to misoperation is avoided.
Reverse elastic component includes reverse damping spring 25, and reverse damping spring 25's a pot head is established on reverse stopper 26 that has the guide effect to reverse damping spring 25, and reverse stopper 26, forward stopper 21 are located the both sides of dog 20 respectively and are as an organic whole structure with dog 20. The other end of the reverse damper spring 25 is connected to the pivot block 6. The main return spring 23, the auxiliary return spring 24 and the reverse damping spring 25 have a common reset limiting effect on the limiting rocker arm 27, and the reset limiting effect of the limiting rocker arm 27 is improved.
The valve rod 3, the limiting rocker arm 27, the rotary block 6 and the spring positioning rotary part 22 are all made of light surface-strengthened aluminum alloy materials, so that the mass of the injection valve is favorably reduced, and the inertia force generated during rotation is reduced.
Fig. 4 is a schematic view of a valve core and valve rod connection structure of an embodiment of a rotary electromagnet driven straight-through gas injection valve with an integrated valve rod reset mechanism according to the present invention. As shown in the figure, the bottom of the valve body 1 is provided with a valve core 10, and the valve core 10 is fixedly connected with the valve rod 3 through a connecting mechanism. The connecting mechanism comprises an armature 7, and the armature 7 is fixedly connected with the valve rod 3 or is of an integral structure. A bottom plate 8 is fixedly arranged below the armature 7, a butterfly gasket 9 is arranged between the armature 7 and the bottom plate 8, and the butterfly gasket 9 can reduce the mass of the injection valve, reduce the inertia force generated during rotation and improve the response speed of the injection valve. The valve core 10 is positioned below the bottom plate 8, and the valve core 10, the bottom plate 8 and the armature 7 are fixedly connected together through bolts.
A plurality of pressure balance grooves are formed in the bottom plate 8, so that the valve rod 3 is prevented from generating axial force during assembly and affecting the verticality of the valve rod.
Fig. 5 is a schematic view of a valve core of an embodiment of a rotary electromagnet-driven straight-through gas injection valve with an integrated valve rod resetting mechanism, fig. 6 is a schematic view of a valve core of an embodiment of a rotary electromagnet-driven straight-through gas injection valve with an integrated valve rod resetting mechanism, fig. 7 is a schematic view of a guide base of an embodiment of a rotary electromagnet-driven straight-through gas injection valve with an integrated valve rod resetting mechanism, and fig. 8 is a schematic view of a guide base of an embodiment of a rotary electromagnet-driven straight-through gas injection valve with an integrated valve rod resetting mechanism. As shown in the figure, the valve core 10 is uniformly provided with a plurality of pressure balance holes 16, so that the air flow interference generated when the fuel gas flows is reduced, the flow damping is reduced, and the air flow is increased. The pressure equalizing hole 16 communicates with the air chamber 15 inside the valve body 1. The bottom of the valve core 10 is provided with a guide base 12, and the guide base 12 is fixedly connected with the valve body 1 through a screw. The guide base 12 is provided with air outlets 17 corresponding to the pressure balance holes 16 on the valve core 10 one by one, and the size and the shape of the air outlets 17 on the guide base 12 are the same as those of the pressure balance holes 16 on the valve core 10. The guide base 12 is provided with a valve seat 11, and the valve core 10 is sleeved outside the valve seat 11 and is rotatably connected with the valve seat 11. The valve seat 11, the valve stem 3 and the guide base 12 are coaxially arranged.
A sealing ring is arranged between the inner surface of the valve core 10 and the outer surface of the valve seat 11, so that the sealing property between the valve core 10 and the valve seat 11 is improved. Two sealing rings 18 are arranged between the outer side surface of the valve core 10 and the guide base 12, so that the sealing performance is improved. A sealing gasket 19 is arranged between the stepped surface at the center of the guide base 12 and the stepped shaft of the valve seat 11, and a sealing ring is arranged between the guide base 12 and the valve body 1. The outer layer of the valve core 10 is made of the existing wear-resistant high-hardness light material, so that the wear resistance of the outer surface of the valve core 10 is improved, and the service life of the injection valve is prolonged.
Fig. 9 is a schematic view of gas path guidance of an embodiment of a rotary electromagnet driven straight-through gas injection valve with an integrated valve rod resetting mechanism according to the present invention. As shown in the figure, when the gas injection valve is used, after the rotary electromagnet 2 is electrified, the valve rod 3 is driven to rotate, the valve rod 3 drives the limiting rocker arm 27 and the valve core 10 to synchronously rotate, the limiting rocker arm 27 stops rotating under the action of the valve rod limiting reset mechanism, the pressure balance hole 16 on the valve core 10 is just completely superposed with the air outlet hole 17 on the guide base 12, gas entering the gas cavity 15 through the air inlet hole 13 at the top of the valve body 1 is rectified and guided through the guide hole 14 and then flows out of the injection valve through the air outlet hole 17, and the gas injection valve is opened; after the rotary electromagnet 2 is powered off, the valve rod 3 rotates reversely under the action of the valve rod limiting reset mechanism, the valve rod 3 resets, the pressure balance hole 16 and the air outlet hole 17 are completely staggered, a surface seal is formed between the valve core 10 and the guide base 12, and the gas injection valve is closed.
Therefore, the through type gas injection valve driven by the rotary electromagnet and provided with the integrated valve rod resetting mechanism can solve the problems of complex structure and low reliability of the conventional gas injection valve, and has the advantages of high response speed, long-term and stable injection and sufficient injection flow.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.

Claims (10)

1. The utility model provides a rotary electromagnet driven takes straight-through gas injection valve of integration valve rod canceling release mechanical system which characterized in that: the rotary electromagnetic valve comprises a valve body, wherein a rotary electromagnet is arranged inside the valve body and fixedly connected with a valve rod, and the rotary electromagnet drives the valve rod to rotate; the middle part of the valve body is provided with a partition plate, the partition plate is provided with a plurality of flow guide holes, the valve rod is rotatably connected with the partition plate, and the partition plate is provided with a valve rod limiting and resetting mechanism which has a limiting and resetting effect on the rotation of the valve rod; the bottom of the valve body is provided with a valve core, and the valve core is fixedly connected with the valve rod through a connecting mechanism; the valve core is provided with a plurality of pressure balance holes, the top of the valve body is provided with an air inlet hole, and the air inlet hole and the air outlet hole are both communicated with an air cavity inside the valve body; the bottom of the valve core is provided with a guide base, the guide base is fixedly connected with the valve body, the guide base is provided with air outlet holes which are in one-to-one correspondence with the pressure balance holes in the valve core, the guide base is provided with a valve seat, and the valve core is sleeved outside the valve seat and is rotatably connected with the valve seat.
2. A rotary electromagnet driven straight through gas injection valve with integral valve stem reset mechanism as defined in claim 1 wherein: the shell of the rotary electromagnet is connected with the valve body, a base is fixedly arranged below the shell of the rotary electromagnet, and the base is rotatably connected with the valve rod.
3. A rotary electromagnet driven straight through gas injection valve with integral valve stem reset mechanism as defined in claim 2 wherein: one side that the base is close to the valve rod is provided with the lubrication groove of L type, is provided with on the valve rod and carries out the sealing washer sealed with valve rod and base, and the sealing washer is located the lubrication groove, is provided with the lubricating oil that carries out the lubrication to the sealing washer in the lubrication groove.
4. A rotary electromagnet driven straight through gas injection valve with integral valve stem reset mechanism as defined in claim 1 wherein: the valve rod limiting reset mechanism comprises limiting rocker arms symmetrically arranged on a valve rod, a rotary block is arranged on the end of each limiting rocker arm, the rotary block is located in a rotary groove formed in a partition plate and slides in the rotary groove, stop blocks are fixedly arranged on the partition plate, the two stop blocks are symmetrically arranged in the rotary groove, one side of the rotary block is connected with one of the stop blocks through a reset elastic piece, the other side of the rotary block is connected with the other stop block through a reverse elastic piece, and the reset elastic piece and the reverse elastic piece are arranged at intervals.
5. A rotary electromagnet driven straight through gas injection valve with integral valve stem reset mechanism as defined in claim 4 wherein: and lubricating oil is arranged in the rotary groove, and the rotary block slides in the rotary groove through the lubricating oil.
6. A rotary electromagnet driven straight through gas injection valve with integral valve stem reset mechanism as defined in claim 4 wherein: the return elastic part comprises a main return spring and an auxiliary return spring, one end of the main return spring is sleeved on the spring positioning rotary part arranged on the rotary block, and the other end of the main return spring is sleeved on a forward limiting block arranged on the stop block; the auxiliary reset spring is positioned in the main reset spring, one end of the auxiliary reset spring is sleeved on the spring positioning rotating piece which has a guiding effect on the auxiliary reset spring and the main reset spring, and the other end of the auxiliary reset spring is connected with the forward limiting block.
7. A rotary electromagnet driven straight through gas injection valve with integral valve stem reset mechanism as defined in claim 4 wherein: the reverse elastic part comprises a reverse damping spring, one end of the reverse damping spring is sleeved on a reverse limiting block which has a guiding effect on the reverse damping spring, and the other end of the reverse damping spring is connected with the rotary block.
8. A rotary electromagnet driven straight through gas injection valve with integral valve stem reset mechanism as defined in claim 1 wherein: the lower part of the valve rod limiting reset mechanism is fixedly provided with an armature, the armature is sleeved on the valve rod, the lower part of the armature is fixedly provided with a bottom plate, and the valve core is positioned below the bottom plate and is fixedly connected with the bottom plate.
9. A rotary electromagnet driven straight through gas injection valve with integral valve stem reset mechanism as defined in claim 8 wherein: a butterfly gasket is arranged between the armature and the bottom plate, and the armature, the bottom plate and the valve core are fixedly connected through bolts; the bottom plate is provided with a pressure balance groove, and the valve core is provided with a pressure balance hole.
10. A rotary electromagnet driven straight through gas injection valve with integral valve stem reset mechanism as defined in claim 1 wherein: a sealing ring is arranged between the valve core and the valve seat, the sealing ring is arranged between the valve core and the guide base, a sealing gasket is arranged between the stepped surface at the center of the guide base and the stepped shaft of the valve seat, and the sealing ring is arranged between the guide base and the valve body.
CN202111548424.8A 2021-12-17 2021-12-17 Rotary electromagnet driven straight-through gas injection valve with integrated valve rod reset mechanism Pending CN114060173A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111548424.8A CN114060173A (en) 2021-12-17 2021-12-17 Rotary electromagnet driven straight-through gas injection valve with integrated valve rod reset mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111548424.8A CN114060173A (en) 2021-12-17 2021-12-17 Rotary electromagnet driven straight-through gas injection valve with integrated valve rod reset mechanism

Publications (1)

Publication Number Publication Date
CN114060173A true CN114060173A (en) 2022-02-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111548424.8A Pending CN114060173A (en) 2021-12-17 2021-12-17 Rotary electromagnet driven straight-through gas injection valve with integrated valve rod reset mechanism

Country Status (1)

Country Link
CN (1) CN114060173A (en)

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