CN114233528A - Gas nozzle - Google Patents
Gas nozzle Download PDFInfo
- Publication number
- CN114233528A CN114233528A CN202111451329.6A CN202111451329A CN114233528A CN 114233528 A CN114233528 A CN 114233528A CN 202111451329 A CN202111451329 A CN 202111451329A CN 114233528 A CN114233528 A CN 114233528A
- Authority
- CN
- China
- Prior art keywords
- sealing
- cavity
- ring
- armature
- air outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 184
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 57
- 239000002184 metal Substances 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims description 17
- 238000005516 engineering process Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 230000010354 integration Effects 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 33
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- 239000000306 component Substances 0.000 description 6
- 238000010030 laminating Methods 0.000 description 4
- 239000008358 core component Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000872 buffer Substances 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010073 coating (rubber) Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000009957 hemming Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0027—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures the fuel being gaseous
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention provides a gas nozzle which comprises a lower shell, wherein the lower end of the lower shell is provided with a gas inlet, and a first gas inlet cavity is formed between a gas inlet filter screen and the lower shell; a second air inlet cavity is formed between the electromagnetic assembly and the lower shell, and the first air inlet cavity is communicated with the second air inlet cavity through an air inlet; the armature is arranged below the second air inlet cavity; the lower end of the reset assembly is fixedly connected with the armature, a first exhaust cavity is formed between the armature and the sealing seat, and the second air inlet cavity is communicated with the first exhaust cavity through a first exhaust hole in the armature; the sealing seat is provided with an air outlet, the first air outlet and the air outlet are distributed in a staggered manner, and the air outlet nozzle is fixed below the sealing seat; when the electromagnetic assembly is electrified, the armature moves upwards, and the first exhaust cavity is communicated with the air outlet; when the electromagnetic assembly loses electricity, the armature is tightly attached to the sealing seat under the action of the reset assembly, and the first exhaust cavity is separated from the air outlet. The design of air outlet below the side air inlet is adopted, so that the assembly is simple in the system integration process, the number of parts is small, the cost is low, and the vibration durability is good.
Description
Technical Field
The invention relates to the technical field of gas engine control systems, in particular to a gas nozzle.
Background
The gas metering valve is a core component of the gas engine and is used for controlling the air inflow of the engine. The gas metering valve comprises a nozzle and a valve seat, wherein the nozzle is installed on the valve seat, and the size of the gas inlet injection quantity of the gas is metered through the nozzle. Because the air inflow needs to be accurately controlled, the requirement on the air tightness is high, and in addition, the stable output of the gas at the air outlet is ensured. The nozzle structure in the prior art has more parts, and the nozzle is complex to assemble in the system integration process, so the defects of poor sealing effect, high cost, poor vibration durability and the like exist.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the defects in the prior art, the invention provides a gas nozzle.
The technical scheme adopted for solving the technical problems is as follows: a gas nozzle comprises an upper shell, a lower shell, a flange seat, an electromagnetic assembly, an armature, a reset assembly, a stroke ring, a sealing seat, an air inlet filter screen and an air outlet nozzle, wherein the upper shell and the lower shell are both of a hollow structure, the upper shell is sleeved at the upper end of the lower shell, a plurality of air inlet holes are formed in the circumferential direction on the side wall of the lower end of the lower shell, the air inlet filter screen is arranged on the lower shell provided with the air inlet holes, and a first air inlet cavity is formed between the air inlet filter screen and the lower shell; the flange seat is fixed in the upper shell, the upper end of the electromagnetic assembly is fixed on the flange seat, the lower end of the electromagnetic assembly extends downwards into the lower shell, a second air inlet cavity is formed between the lower end of the electromagnetic assembly and the lower shell, and the first air inlet cavity is communicated with the second air inlet cavity through an air inlet; the armature is arranged below the exhaust port of the second air inlet cavity, and the upper part of the armature is opposite to the electromagnetic assembly; the lower end of the reset assembly is fixedly connected with the armature, and the upper end of the reset assembly penetrates through the electromagnetic assembly and is fixedly connected with the flange seat at the end part; the stroke ring is sleeved outside the armature, and the axial height of the stroke ring is greater than that of the armature; a sealing seat is sealed below the stroke ring and the armature, a first exhaust cavity is formed between the armature and the sealing seat, a plurality of first exhaust holes are formed in the armature along the circumferential direction, and the second air inlet cavity is communicated with the first exhaust cavity through the first exhaust holes; the sealing seat is provided with a plurality of air outlet holes, the first exhaust hole and the air outlet holes are distributed in a staggered manner, an outer sealing surface capable of isolating the first exhaust hole and the air outlet holes is arranged between the armature and the sealing seat, and the air outlet nozzle is fixed on the lower shell below the sealing seat; the second air inlet cavity forms an outer air path structure through the first air outlet and an air flow channel from the first air outlet cavity to the air outlet;
when the electromagnetic assembly is electrified, the armature moves upwards in the stroke ring, and the first exhaust cavity is communicated with the air outlet; when the electromagnetic assembly loses power, the armature is tightly attached to the sealing seat through the outer sealing surface under the action of the reset assembly, and the first exhaust cavity is separated from the air outlet.
Further, the electromagnetic assembly comprises an iron core, a coil and a coil frame, the upper end of the iron core is fixedly connected with the flange seat, the lower end of the iron core penetrates through the coil frame, the coil is wound on the coil frame, and the second air inlet cavity is formed between the lower end face of the coil frame and the inner wall of the lower shell.
Further, in order to realize the firm fixed of iron core, be equipped with the iron core installation cavity in the flange seat, the bottom edge of iron core installation cavity is equipped with the borduring of turning over the book inwards, the iron core upper end is equipped with the fixed head, the fixed head is equipped with the conical surface that corresponds with borduring with the junction of iron core, during the assembly, inserts the fixed head in the iron core installation cavity, through turn-up throat technology formation bordure and with the laminating of conical surface, fix the fixed head in the iron core installation cavity.
Further, in order to avoid air leakage of the nozzle in a turn-off state, the armature comprises a metal ring and a rubber part arranged in the metal ring, a first exhaust hole is formed in the metal ring, a second exhaust hole is formed in the rubber part, and the second exhaust hole and the first exhaust hole are respectively positioned on the inner side and the outer side of the exhaust hole; the surface of the sealing seat opposite to the rubber piece is annularly provided with an inner sealing convex ring and an outer sealing convex ring, the surface of the sealing seat opposite to the metal ring is annularly provided with a supporting convex ring, the inner sealing convex ring, the outer sealing convex ring and the supporting convex ring are sequentially arranged from inside to outside, and the top surfaces of the inner sealing convex ring and the outer sealing convex ring are higher than the top surface of the supporting convex ring, so that the sealing effect in the laminating process is ensured; the first exhaust cavity is formed between the outer sealing convex ring and the supporting convex ring;
an inner sealing ring surface is formed between the top surface of the inner sealing convex ring and the rubber piece and is used for controlling the connection and disconnection between the second exhaust hole and the air outlet hole; an outer sealing ring surface is formed between the top surface of the outer sealing convex ring and the rubber piece and is used for controlling the on-off of the first exhaust hole and the air outlet hole; the top surface of the supporting convex ring is abutted against the bottom surface of the metal ring and used for supporting the metal ring.
When the armature is attached to the sealing seat, the tops of the inner sealing convex ring and the outer sealing convex ring are embedded into the rubber piece to form an attached outer sealing ring surface and an attached inner sealing ring surface, at the moment, the first exhaust hole, the second exhaust hole and the air outlet hole are isolated, and when the armature is lifted to be separated from the sealing seat, the first exhaust hole, the second exhaust hole and the air outlet hole are communicated.
Furthermore, in order to realize the rapid on-off control of the nozzle, the reset assembly comprises a thimble and a reset spring, a thimble installation cavity is arranged in the flange seat and is positioned above the iron core installation cavity, the upper end of the thimble is fixed in the thimble installation cavity, the lower end of the thimble extends into the central hole of the iron core, and the bottom of the thimble is abutted against the upper end of the reset spring in the central hole of the iron core; the lower end of the return spring is abutted against the inner counter bore step surface of the metal ring of the armature.
Furthermore, in order to ensure balanced and stable air flow inside and outside the air outlet hole, an inner air path structure is additionally arranged on the inner periphery of the air outlet hole, an air storage cavity is formed at the lower end of a central hole of the iron core of the electromagnetic assembly, an air storage hole communicated with the air storage cavity and a second air inlet cavity is formed in the side wall of the air storage cavity, a second air exhaust cavity is arranged between a rubber part below a second air exhaust hole of the armature and the sealing seat, and the second air exhaust cavity is positioned inside the inner sealing convex ring; the second air inlet cavity forms an inner air path structure through an air storage hole, an air storage cavity, a second air exhaust hole and an air flow channel from the second air exhaust cavity to the air outlet hole; when the electromagnetic assembly is electrified, the armature moves upwards in the stroke ring, and the second exhaust cavity is communicated with the air outlet; when the electromagnetic assembly loses power, the armature is tightly attached to the sealing seat through the inner sealing surface under the action of the reset assembly, and the second exhaust cavity is isolated from the air outlet.
When the nozzle is provided with the inner air path structure and the outer air path structure at the same time, when the electromagnetic assembly is electrified, the armature moves upwards in the stroke ring, and the first exhaust cavity and the second exhaust cavity are both communicated with the air outlet; when the electromagnetic assembly loses power, the armature is tightly attached to the sealing seat under the action of the reset assembly, and the first exhaust cavity and the second exhaust cavity are both separated from the air outlet. The inside and the outside of the air outlet are provided with the exhaust cavities, so that the uniformity and the stability of the gas entering the air outlet nozzle are ensured.
In order to avoid the gas entering electromagnetic assembly in the second air inlet cavity of the lower shell, the electromagnetic assembly further comprises a first inner sealing structure, wherein the first inner sealing structure comprises a third sealing ring arranged between the connection surface of the coil framework and the iron core and a fourth sealing ring arranged between the lower end surface of the coil framework and the inner wall of the lower shell.
Furthermore, in order to realize the sealing of the gas storage cavity, the gas in the gas outlet cavity is prevented from overflowing from the connecting surface of the ejector pin and the iron core, the gas storage cavity further comprises a second inner sealing structure, the second inner sealing structure comprises a fifth sealing ring annularly arranged on the inner wall of the iron core and the outer wall of the ejector pin, and a fifth sealing ring is arranged in the fifth sealing ring.
The nozzle is arranged in a valve seat of the gas metering valve, so that in order to ensure the air tightness between an air inlet of the nozzle and the valve seat, the gas metering valve further comprises an outer sealing structure, a first sealing groove is annularly arranged at the joint of the upper shell and the lower shell, and a first sealing ring is arranged in the first sealing groove; and a second sealing groove is annularly arranged on the outer wall of the air outlet nozzle, and a second sealing ring is arranged in the second sealing groove.
Further, still include seal structure in the third, seal structure includes the sixth sealing washer that sets up in the junction of giving vent to anger mouth, lower casing and seal receptacle in the third. The sixth sealing ring is used for sealing the connection end face of the air outlet nozzle and the sealing seat, and the injection precision of the nozzle is prevented from being influenced by air leakage.
Further, be equipped with mounting flange on the outer wall of going up the casing, be equipped with electric interface and U type groove on the last casing of mounting flange top, and electric interface and U type groove along carrying out the symmetry and setting up on last casing. The electrical interface is used for being connected with an ECU of the engine to realize the on-off control of the electromagnetic assembly; the U-shaped groove is open in the side direction and extends in the axial section direction, so that the nozzle can be conveniently detached from the system end.
Because the thimble assembles into from the top of flange seat, consequently, the flange seat upper end is exposed outside, deposits the dust easily in its downthehole, consequently, for the structure that exposes the nozzle outside, still includes the cap, the upper end of flange seat extends the upper casing, the cap passes through the joint structure lid and establishes the upper end at the flange seat, and the cap bottom and the laminating of upper casing up end. The clamping structure comprises an annular clamping hook arranged at the outer edge of the upper end of the flange seat and a clamping ring arranged on the inner wall of the cap, and when the cap is covered, the lower end surface of the clamping hook is hooked on the upper end surface of the clamping ring, so that the cap is prevented from falling off.
The shell, the flange, the iron core, the coil and the armature form an electromagnetic loop together; when the coil is electrified, the armature performs up-and-down motion control according to the frequency and the duty ratio of the excitation source; when the armature moves upwards under the action of electromagnetic force, the electromagnetic valve is opened, the fuel gas starts to be injected through the nozzle, and when the armature moves downwards under the action of the reset spring force, the electromagnetic valve is closed, and the fuel gas injection is closed.
The gas flows into from the side periphery of the nozzle and flows out from the bottom of the nozzle. The nozzle carries out signal communication with the outside through electrical interface, installs fixedly through mounting flange and system, and the sealed isolation between the sealing washer and with the outside is given vent to anger and realized through upper and lower sealing washer.
The invention has the beneficial effects that:
(1) the design of air outlet below the side air inlet is adopted, so that the assembly is simple in the system integration process, the number of parts is small, the cost is low, and the vibration durability is good;
(2) the nozzle adopts a multi-stage sealing structure, thereby ensuring the sealing property of the gas circuit and improving the accuracy of the injection quantity;
(3) the gas inlet cavity and the gas storage cavity are adopted to buffer the entering gas, so that the pressure and the density of each part of the gas are kept balanced, and the stability of the gas injection amount is improved.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a schematic view of the structure of the gas burner of the present invention.
FIG. 2 is a schematic sectional view of the gas nozzle of the present invention.
Fig. 3 is an enlarged schematic view of a portion a in fig. 2 (arrows indicate air flow directions).
Fig. 4 is a schematic view of the direction of gas flow in fig. 3.
Fig. 5 is an enlarged schematic view of B in fig. 2.
Fig. 6 is a schematic structural view of a flange seat.
Fig. 7 is a sectional view of the flange seat.
Fig. 8 is a schematic view of the structure of the iron core.
Fig. 9 is a schematic sectional view of the core.
Fig. 10 is a perspective view of the seal holder.
Fig. 11 is an axial sectional view of the seal holder of fig. 10.
In the figure: 1-upper housing, 1.1-U-shaped groove, 1.2-electrical interface, 1.3-mounting flange, 1.4-ejector pin locking hole, 1.5-air inlet hole, 2-lower housing, 3-flange seat, 3.1-wrapping edge, 3.2-flange part, 3.3-coil pin outlet, 3.4-trip, 3.5-step surface, 4-iron core, 4.1-air storage hole, 4.2-air storage cavity, 4.3-fixing head, 4.4-conical surface, 5-coil skeleton, 6-ejector pin, 7-return spring, 8-metal ring, 8.1-first air outlet hole, 9-stroke ring, 10-sealing seat, 10.1-air outlet hole, 10.2-inner sealing convex ring, 10.3-outer sealing convex ring, 10.4-supporting convex ring, 11-air outlet nozzle, 12-first sealing groove, 13-a first sealing ring, 14-a second sealing groove, 15-a second sealing ring, 16-a third sealing ring, 17-a fourth sealing ring, 18-a rubber part, 18.1-a second exhaust hole, 19-an air inlet filter screen, 19.1-an air inlet, 20-a cap, 21-a fifth sealing ring, 22-a sixth sealing ring, 23-a first air inlet cavity, 24-a second air inlet cavity, 25-a first exhaust cavity and 26-a second exhaust cavity.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.
As shown in fig. 1 and 2, the gas nozzle of the present invention includes an upper casing 1, a lower casing 2, a flange seat 3, an electromagnetic component, an armature, a reset component, a stroke ring 9, a sealing seat 10, an air inlet filter screen 19, an air outlet nozzle 11 and a cap 20, wherein the upper casing 1 and the lower casing 2 are both hollow structures, and the upper casing 1 is sleeved on the upper end of the lower casing 2 to seal other components inside the upper casing 1 and the lower casing 2. Go up and be equipped with mounting flange 1.3 on the outer wall of casing 1, be equipped with electric interface 1.2 and U type groove 1.1 on the last casing 1 of mounting flange 1.3 top, and electric interface 1.2 and U type groove 1.1 along carrying out the symmetry setting on last casing 1. The electrical interface 1.2 is used for being connected with an ECU of an engine to realize the on-off control of the electromagnetic assembly; the U-shaped groove 1.1 is open in the lateral direction and extends in the axial cross-section direction, so that the nozzle can be conveniently detached at the system end. In the present embodiment, the upper housing 1 is an injection molded part, and therefore, in order to achieve the fixed connection between the upper housing 1, the lower housing 2 and the flange seat 3, the flange seat 3 is first welded in the lower housing 2, and then the upper housing 1 is integrally injection molded on the flange seat 3 and the lower housing 2 by injection molding. Because of injection connection, a multi-stage step hole is formed in the upper shell 1 and is matched with the step surface 3.5 of the outer wall of the flange seat 3.
As shown in fig. 3, be equipped with a plurality of inlet ports 1.5 along circumference on the lateral wall of lower casing 2 lower extreme, air intake filter screen 19 covers and establishes on the lower casing that is equipped with inlet port 1.5, and forms first air inlet chamber 23 between air intake filter screen 19 and the lower casing, and air intake filter screen 19 adopts the design of C type, is equipped with annular breach all around as air inlet 19.1, and air inlet 19.1 is the rectangle structure on the cylinder in this embodiment, and the filter screen is fixed at the interior survey of annular breach. An ejector pin locking hole 1.4 is formed in the side wall of the upper shell 1, the ejector pin 6 and the flange 3 are locked and fixed through a riveting process, and the pre-tightening force of the spring can be adjusted by adjusting the position of the ejector pin 6 in the vertical direction of the flange hole; the upper end of the electromagnetic assembly is fixed on the flange seat 3, the lower end of the electromagnetic assembly extends downwards into the lower shell 2, a second air inlet cavity 24 is formed between the lower end of the electromagnetic assembly and the lower shell 2, and the first air inlet cavity 23 is communicated with the second air inlet cavity 24 through an air inlet 1.5; the armature is arranged below the exhaust port of the second air inlet cavity 24, and the upper part of the armature is opposite to the electromagnetic assembly; the lower end of the reset assembly is connected with the armature, and the upper end of the reset assembly penetrates through the electromagnetic assembly and is fixedly connected with the flange seat 3 at the end part; the stroke ring 9 is sleeved on the outer side of the armature, the axial height of the stroke ring 9 is greater than that of the armature, the stroke of the armature in up-and-down motion can be changed by changing the height of the stroke ring 9, and the control of the injection amount is realized; and a sealing seat 10 is sealed below the stroke ring 9 and the armature, and the air outlet nozzle 11 is fixed on the lower shell below the sealing seat 10.
The armature comprises a metal ring 8 and a rubber part 18, an embedding hole is formed in the bottom surface of the metal ring 8, the rubber part 18 is embedded in the embedding hole, and the binding surfaces of the metal ring 8 and the rubber part 18 are bonded together through a rubber coating process to form the armature, so that the sealing effect can be achieved together with the ring surface of the sealing seat.
Electromagnetic component includes iron core 4, coil (not shown in the figure) and coil skeleton 5, iron core 4 upper end and flange seat 3 fixed connection, run through in iron core 4 lower extreme follow coil skeleton 5, the coil is around establishing on coil skeleton 5, coil skeleton 5's lower terminal surface and down between the internal wall of casing form the second chamber 24 of admitting air.
As shown in fig. 5-7, in order to realize the firm fixed of iron core 4, be equipped with the iron core installation cavity in the flange seat 3, the bottom edge of iron core installation cavity is equipped with the 3.1 of borduring of turning over the book inwards, 4 upper ends of iron core are equipped with fixed head 4.3, the junction of fixed head 4.3 and iron core 4 is equipped with the conical surface 4.4 that corresponds with 3.1 of borduring, during the assembly, inserts fixed head 4.3 in the iron core installation cavity, forms to bordure 3.1 and laminate with conical surface 4.4 through turn-up throat technology, fixes fixed head 4.3 in the iron core installation cavity. Two coil pin outlets 3.3 are also arranged on the flange part 3.2 of the flange seat 3. The flange seat 3 and the iron core 4 are matched in a shaft hole mode and are fixed by adopting a hemming and necking process; iron core 4 is the core component of product, and integral type structure iron core material is with high costs, compares with the iron core that current adoption integral type structural design, saves the material cost of core component iron core greatly through this design.
The reset assembly comprises a thimble 6 and a reset spring 7, as shown in fig. 5 and 6, a thimble 6 mounting cavity is arranged in the flange seat 3, the thimble 6 mounting cavity is positioned above the iron core mounting cavity, the upper end of the thimble 6 is fixed in the thimble mounting cavity, the lower end of the thimble 6 extends into the central hole of the iron core 4, and the bottom of the thimble is abutted against the upper end of the reset spring 7 in the central hole of the iron core 4; the lower end of the return spring 7 is abutted against the inner counter bore step surface of the metal ring 8 of the armature.
In this embodiment, in order to ensure the stability and the balance of the air flow at the air outlet 10.1, two air path structures, namely an inner air path structure and an outer air path structure, are arranged between the second air inlet cavity 24 and the air outlet 10.1, the inner air path structure realizes that the air flow enters the air outlet 10.1 from the center to the outside, the outer air path structure realizes that the air flow enters the air outlet 10.1 from the periphery to the center, and the following describes the two air path structures in detail.
As shown in fig. 10 and 11, an inner sealing convex ring 10.2 and an outer sealing convex ring 10.3 are annularly arranged on the surface of the sealing seat 10 opposite to the rubber member 18, a supporting convex ring 10.4 is annularly arranged on the surface of the sealing seat 10 opposite to the metal ring 8, the inner sealing convex ring 10.2, the outer sealing convex ring 10.3 and the supporting convex ring 10.4 are sequentially arranged from inside to outside, and the top surfaces of the inner sealing convex ring 10.2 and the outer sealing convex ring 10.3 are higher than the top surface of the supporting convex ring 10.4. The first exhaust cavity 25 is positioned between the outer sealing convex ring 10.3 and the supporting convex ring 10.4; an inner sealing ring surface is formed between the top surface of the inner sealing convex ring 10.2 and the rubber part 18 and is used for controlling the on-off between the second exhaust hole 14.1 and the air outlet hole 10.1; an outer sealing ring surface is formed between the top surface of the outer sealing convex ring 10.3 and the rubber piece 18 and is used for controlling the on-off of the first exhaust hole 8.1 and the air outlet hole 10.1; the top surface of the supporting convex ring 10.4 is abutted against the bottom surface of the metal ring 8 and is used for supporting the metal ring 8. When the armature is attached to the sealing seat 10, the tops of the inner sealing convex ring 10.2 and the outer sealing convex ring 10.3 are embedded into the rubber piece 18 to form an outer sealing ring surface and an inner sealing ring surface which are attached to each other, at the moment, the first exhaust hole 8.1, the second exhaust hole 18.1 and the air outlet hole 10.1 are separated, and when the armature is lifted and separated from the sealing seat 10, the first exhaust hole 8.1, the second exhaust hole 18.1 and the air outlet hole 10.1 are communicated.
A first exhaust cavity 25 and a second exhaust cavity 26 are formed between the rubber part 18 of the armature and the seal seat 10, a plurality of first exhaust holes 8.1 are formed in the metal ring 8 along the circumferential direction, an axial second exhaust hole 18.1 is formed in the center of the rubber part 18, and the first exhaust holes 8.1 are formed in the periphery of the second exhaust hole 18.1; the second air inlet cavity 24 is communicated with the first exhaust cavity 25 through a first exhaust hole 8.1; be equipped with venthole 10.1 on the seal receptacle 10, venthole 10.1 is a plurality of, venthole 10.1 sets up between first exhaust hole 8.1 and second exhaust hole 18.1, and with first exhaust hole 8.1 and second exhaust hole 18.1 dislocation distribution from top to bottom.
The central hole of the iron core 4 at the lower end of the reset spring 7 forms an air storage cavity 4.2, the side wall of the air storage cavity 4.2 is provided with an air storage hole 4.1 which is communicated with the air storage cavity 4.2 and a second air inlet cavity 24, a second air exhaust cavity 26 is arranged between the rubber part 18 below the second air exhaust hole 18.1 and the seal seat 10, the first air exhaust cavity 25 is annularly arranged on the periphery of the second air exhaust cavity 26, and the air outlet 10.1 is arranged on the seal seat 10 between the first air exhaust cavity 25 and the second air exhaust cavity 26. The rubber part 18 is used as a closed switch of the first exhaust cavity 25 and the second exhaust cavity 26 besides forming the second exhaust hole 18.1, and the first exhaust cavity 25, the second exhaust cavity 26 and the air outlet hole 10.1 are connected and disconnected through linkage of the rubber part 18 and the armature.
When the electromagnetic assembly is electrified, the armature moves upwards in the stroke ring 9, the first exhaust cavity 25 and the second exhaust cavity 26 are both communicated with the air outlet 10.1, and at the moment, the return spring 7 is compressed to generate downward elastic force; when the electromagnetic component loses power, the armature is tightly attached to the sealing seat 10 under the action of the reset component, and the first exhaust cavity 25 and the second exhaust cavity 26 are both isolated from the air outlet 10.1. The inside and the outside of the air outlet hole 10.1 are both provided with an exhaust cavity, so that the uniformity and the stability of the air entering the air outlet nozzle 11 are ensured.
Wherein, the second air inlet cavity 24 passes through the first exhaust hole 8.1, the first exhaust cavity 25 and the air flow channel of the air outlet hole 10.1 to form an outer air path structure; the second air inlet cavity 24 forms an internal air path structure through an air flow channel from the air storage hole 4.1, the air storage cavity 4.2, the second air exhaust hole 18.1, the second air exhaust cavity 26 to the air outlet hole 10.1.
In order to improve the sealing performance, a plurality of sealing structures are designed in the embodiment, including a first inner sealing structure, a second inner sealing structure, a third inner sealing structure and an outer sealing structure, wherein the first inner sealing structure is used for realizing the sealing between the second air inlet cavity 24 of the lower shell and the electromagnetic assembly, the second inner sealing structure is used for realizing the sealing between the connection surfaces of the thimble 6 and the iron core 4 in the air storage cavity, the third inner sealing structure is used for realizing the sealing between the connection end surfaces of the air outlet nozzle 11 and the sealing seat 10, and the outer sealing structure is used for realizing the sealing between the air inlet 19.1 of the nozzle and the valve seat after the nozzle is installed on the valve seat.
The first inner sealing structure comprises a third sealing ring 16 arranged between the connection surfaces of the coil framework 5 and the iron core 4 and a fourth sealing ring 17 arranged between the lower end surface of the coil framework 5 and the inner wall of the lower shell.
The second inner sealing structure comprises a fifth sealing ring annularly arranged on the inner wall of the iron core 4 and the outer wall of the thimble 6, and a fifth sealing ring 21 is arranged in the fifth sealing ring.
The third inner sealing structure comprises a sixth sealing ring 22 arranged at the joint of the air outlet nozzle 11, the lower shell 2 and the sealing seat 10. The sixth sealing ring 22 is used for sealing the connecting end face of the air outlet nozzle 11 and the sealing seat 10, so that the injection precision of the nozzle is prevented from being influenced by air leakage.
The outer sealing structure comprises a first sealing groove 12 arranged at the joint of the upper shell 1 and the lower shell 2, and a first sealing ring 13 is arranged in the first sealing groove 12; and a second sealing groove 14 is annularly arranged on the outer wall of the air outlet nozzle 11, and a second sealing ring 15 is arranged in the second sealing groove 14.
Because thimble 6 assembles into from the top of flange seat 3, consequently, the upper end of flange seat 3 exposes outside, and is easy at its downthehole deposit dust, consequently, in order to expose the structure outside to the nozzle, still include cap 20, casing 1 is extended to the upper end of flange seat 3, cap 20 passes through the joint structure lid and establishes the upper end at flange seat 3, and the laminating of cap 20 bottom and upper casing 1 up end. The clamping structure in this embodiment includes annular trip 3.4 and the snap ring of setting on the cap 20 inner wall that sets up at the upper end outer fringe of flange seat 3, and when cap 20 covered, terminal surface colluded on the snap ring up end under trip 3.4, avoids the block to drop. The cap 20 is preferably made of a plastic material, such as PA 66.
The working principle is as follows:
when the electromagnetic assembly loses power, the upper end of the sealing seat 10 is attached to the bottom surface of the armature, the air path is in a turn-off state, the first exhaust cavity 25 and the second exhaust cavity 26 are both separated from the air outlet 10.1, and at the moment, the nozzle does not spray air flow.
When the electromagnetic assembly is electrified, the armature moves upwards along the axis of the stroke ring 9 under the action of magnetic force, so that the armature is separated from the sealing seat 10, the first exhaust cavity 25 and the second exhaust cavity 26 are both communicated with the exhaust hole 10.1, gas enters from the air inlet 19.1 of the air inlet filter screen 19 and is sequentially filtered by the air inlet filter screen 19, the first air inlet cavity 23 buffers and enters the second air inlet cavity 24 through the air inlet hole 1.5, the gas entering the second air inlet cavity 24 is divided into two paths, and one path of gas downwards enters the first exhaust cavity 25 through the first exhaust hole 8.1 on the armature; the other path enters an air storage cavity 4.2 in the iron core 4 through an air storage hole 4.1 on the side wall of the iron core 4 and then enters a second exhaust cavity 26 through a second exhaust hole 18.1; at this time, because the first exhaust cavity 25 and the second exhaust cavity 26 are both communicated with the air outlet 10.1, the first exhaust cavity 25 and the second exhaust cavity 26 simultaneously enter the air outlet nozzle 11 through the air outlet 10.1 and are ejected out of the air outlet nozzle 11, and the air flow direction is as shown by the arrow in fig. 4.
In light of the foregoing description of preferred embodiments in accordance with the invention, it is to be understood that numerous changes and modifications may be made by those skilled in the art without departing from the scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A gas burner, characterized by: the electromagnetic air inlet device comprises an upper shell, a lower shell, a flange seat, an electromagnetic assembly, an armature, a reset assembly, a stroke ring, a sealing seat, an air inlet filter screen and an air outlet nozzle, wherein the upper shell and the lower shell are both of a hollow structure, the upper shell is sleeved at the upper end of the lower shell, a plurality of air inlet holes are formed in the circumferential direction on the side wall of the lower end of the lower shell, the air inlet filter screen is arranged on the lower shell provided with the air inlet holes, and a first air inlet cavity is formed between the air inlet filter screen and the lower shell; the flange seat is fixed in the upper shell, the upper end of the electromagnetic assembly is fixed on the flange seat, the lower end of the electromagnetic assembly extends downwards into the lower shell, a second air inlet cavity is formed between the lower end of the electromagnetic assembly and the lower shell, and the first air inlet cavity is communicated with the second air inlet cavity through an air inlet; the armature is arranged below the exhaust port of the second air inlet cavity, and the upper part of the armature is opposite to the electromagnetic assembly; the lower end of the reset assembly is fixedly connected with the armature, and the upper end of the reset assembly penetrates through the electromagnetic assembly and is fixedly connected with the flange seat at the end part; the stroke ring is sleeved outside the armature, and the axial height of the stroke ring is greater than that of the armature; a sealing seat is sealed below the stroke ring and the armature, a first exhaust cavity is formed between the armature and the sealing seat, a plurality of first exhaust holes are formed in the armature along the circumferential direction, and the second air inlet cavity is communicated with the first exhaust cavity through the first exhaust holes; the sealing seat is provided with air outlet holes, the first exhaust hole and the air outlet holes are distributed in a staggered manner, an outer sealing surface capable of isolating the first exhaust hole and the air outlet holes is arranged between the armature and the sealing seat, and the air outlet nozzle is fixed on the lower shell below the sealing seat; the second air inlet cavity forms an outer air path structure through the first air outlet and an air flow channel from the first air outlet cavity to the air outlet;
when the electromagnetic assembly is electrified, the armature moves upwards in the stroke ring, and the first exhaust cavity is communicated with the air outlet; when the electromagnetic assembly loses power, the armature is tightly attached to the sealing seat through the outer sealing surface under the action of the reset assembly, and the first exhaust cavity is separated from the air outlet.
2. The gas burner of claim 1, wherein: the electromagnetic assembly comprises an iron core, a coil and a coil skeleton, the upper end of the iron core is fixedly connected with the flange seat, the lower end of the iron core penetrates through the coil skeleton, the coil is wound on the coil skeleton, and the second air inlet cavity is formed between the lower end face of the coil skeleton and the inner wall of the lower shell.
3. The gas burner of claim 2, wherein: be equipped with the iron core installation cavity in the flange seat, the bottom edge of iron core installation cavity is equipped with the bordure of turning over to the enstrophe, the iron core upper end is equipped with the fixed head, the junction of fixed head and iron core is equipped with the conical surface that corresponds with borduring, during the assembly, inserts the fixed head in the iron core installation cavity, through turn-up throat technology formation bordure and laminate with the conical surface, fix the fixed head in the iron core installation cavity.
4. The gas burner of claim 2, wherein: the armature comprises a metal ring and a rubber part arranged in the metal ring, a first exhaust hole is formed in the metal ring, a second exhaust hole is formed in the rubber part, and the second exhaust hole and the first exhaust hole are respectively located on the inner side and the outer side of the air outlet; the surface of the sealing seat opposite to the rubber piece is annularly provided with an inner sealing convex ring and an outer sealing convex ring, the surface of the sealing seat opposite to the metal ring is annularly provided with a supporting convex ring, the inner sealing convex ring, the outer sealing convex ring and the supporting convex ring are sequentially arranged from inside to outside, and the top surfaces of the inner sealing convex ring and the outer sealing convex ring are higher than the top surface of the supporting convex ring; the first exhaust cavity is formed between the outer sealing convex ring and the supporting convex ring;
an inner sealing ring surface is formed between the top surface of the inner sealing convex ring and the rubber piece and is used for controlling the connection and disconnection between the second exhaust hole and the air outlet hole; an outer sealing ring surface is formed between the top surface of the outer sealing convex ring and the rubber piece and is used for controlling the on-off of the first exhaust hole and the air outlet hole; the top surface of the supporting convex ring is abutted against the bottom surface of the metal ring and used for supporting the metal ring.
5. The gas burner of claim 4, wherein: the reset assembly comprises a thimble and a reset spring, a thimble mounting cavity is arranged in the flange seat, the upper end of the thimble is fixed in the thimble mounting cavity, the lower end of the thimble extends into the central hole of the iron core, and the bottom of the thimble is abutted against the upper end of the reset spring in the central hole of the iron core; the lower end of the return spring is abutted against the inner counter bore step surface of the metal ring of the armature.
6. A gas burner as in any of claims 1 to 5, wherein: a gas storage cavity is formed at the lower end of a central hole of an iron core of the electromagnetic assembly, a gas storage hole communicated with the gas storage cavity and a second gas inlet cavity is formed in the side wall of the gas storage cavity, a second gas exhaust cavity is formed between a rubber piece below a second gas exhaust hole of the armature and the sealing seat, and the second gas exhaust cavity is positioned inside the inner sealing convex ring; the second air inlet cavity forms an inner air path structure through an air storage hole, an air storage cavity, a second air exhaust hole and an air flow channel from the second air exhaust cavity to the air outlet hole;
when the electromagnetic assembly is electrified, the armature moves upwards in the stroke ring, and the second exhaust cavity is communicated with the air outlet; when the electromagnetic assembly loses power, the armature is tightly attached to the sealing seat through the inner sealing surface under the action of the reset assembly, and the second exhaust cavity is isolated from the air outlet.
7. The gas burner of claim 6, wherein: the first inner sealing structure comprises a third sealing ring arranged between the coil framework and the iron core connecting surface and a fourth sealing ring arranged between the lower end surface of the coil framework and the inner wall of the lower shell; the second inner sealing structure comprises a fifth sealing ring annularly arranged on the inner wall of the iron core and the outer wall of the ejector pin, and a fifth sealing ring is arranged in the fifth sealing ring.
8. The gas burner of claim 1, wherein: the sealing structure further comprises an outer sealing structure, a first sealing groove is annularly arranged at the joint of the upper shell and the lower shell, and a first sealing ring is arranged in the first sealing groove; and a second sealing groove is annularly arranged on the outer wall of the air outlet nozzle, and a second sealing ring is arranged in the second sealing groove.
9. The gas burner of claim 1, wherein: the sealing structure comprises a sealing seat and a sealing nozzle, and is characterized by further comprising a third inner sealing structure which comprises a sixth sealing ring arranged at the joint of the air outlet nozzle, the lower shell and the sealing seat.
10. The gas burner of claim 1, wherein: an installation flange is arranged on the outer wall of the upper shell, an electrical interface and a U-shaped groove are arranged on the upper shell above the installation flange, and the electrical interface and the U-shaped groove are symmetrically arranged on the upper shell;
the upper end of the flange seat extends out of the upper shell, the cap cover is arranged at the upper end of the flange seat, and the bottom of the cap is attached to the upper end face of the upper shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111451329.6A CN114233528B (en) | 2021-12-01 | 2021-12-01 | Gas nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111451329.6A CN114233528B (en) | 2021-12-01 | 2021-12-01 | Gas nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114233528A true CN114233528A (en) | 2022-03-25 |
| CN114233528B CN114233528B (en) | 2024-01-05 |
Family
ID=80752474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111451329.6A Active CN114233528B (en) | 2021-12-01 | 2021-12-01 | Gas nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114233528B (en) |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8505724D0 (en) * | 1984-04-16 | 1985-04-11 | Colt Ind Operating Corp | Fuel injection apparatus |
| US5542610A (en) * | 1993-10-22 | 1996-08-06 | Mercedes-Benz Ag | Fuel injection nozzle with integral solenoid valve |
| JPH1162710A (en) * | 1997-08-07 | 1999-03-05 | Nippon Soken Inc | Fuel injection device |
| JP2001164996A (en) * | 1999-12-10 | 2001-06-19 | Yanmar Diesel Engine Co Ltd | Gaseous fuel supplying valve |
| DE102005048545A1 (en) * | 2005-10-11 | 2007-04-12 | Robert Bosch Gmbh | Fuel injection valve for e.g. mixture compressing and externally-ignited internal combustion engine, has flange serving as stopper for armature, where stopper limits axial free path and is arranged at valve needle guide |
| CN201339519Y (en) * | 2008-12-01 | 2009-11-04 | 中国汽车工程研究院有限公司 | Direct-acting fuel gas nozzle for internal combustion engine |
| US20100236526A1 (en) * | 2009-03-20 | 2010-09-23 | Tianjin University | Common rail electronic control injector |
| RU136098U1 (en) * | 2013-03-27 | 2013-12-27 | Общество с ограниченной ответственностью "Научно-технический центр "Авангард" (ООО "НТЦ "Авангард") | ELECTROMAGNETIC FUEL INJECTOR |
| CN103867780A (en) * | 2014-04-02 | 2014-06-18 | 中山市思源电器有限公司 | Fuel gas electromagnetism proportional valve |
| US20150211464A1 (en) * | 2012-10-19 | 2015-07-30 | Mitsubishi Heavy Industries, Ltd. | Fuel gas injection valve, dual-fuel gas engine, and fuel gas injection method |
| CN106089500A (en) * | 2016-07-29 | 2016-11-09 | 东风商用车有限公司 | Straight-through type double-channel gas injection valve |
| CN206000643U (en) * | 2016-07-29 | 2017-03-08 | 东风商用车有限公司 | Straight-through type double-channel gas injection valve |
| CN206816387U (en) * | 2017-06-28 | 2017-12-29 | 哈尔滨工程大学 | A kind of double electromagnetism fuel gas injection valves of combined type |
| CN210135012U (en) * | 2019-05-21 | 2020-03-10 | 潍柴动力股份有限公司 | Gas injection valve |
| CN111005824A (en) * | 2019-12-20 | 2020-04-14 | 哈尔滨工程大学 | Intensified flow-guiding type large-flow injection device of gas fuel engine |
| CN111365146A (en) * | 2020-04-14 | 2020-07-03 | 石家庄玖祥科技有限公司 | Double-gas injection device |
| CN112984196A (en) * | 2021-01-20 | 2021-06-18 | 东风柳州汽车有限公司 | Electromagnetic air valve |
| CN113202658A (en) * | 2021-05-08 | 2021-08-03 | 河南航天液压气动技术有限公司 | Small-flow miniature electromagnetic valve and assembly adjusting method thereof |
| CN216642308U (en) * | 2021-12-01 | 2022-05-31 | 漫索(苏州)控制***有限公司 | Gas nozzle |
-
2021
- 2021-12-01 CN CN202111451329.6A patent/CN114233528B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8505724D0 (en) * | 1984-04-16 | 1985-04-11 | Colt Ind Operating Corp | Fuel injection apparatus |
| US5542610A (en) * | 1993-10-22 | 1996-08-06 | Mercedes-Benz Ag | Fuel injection nozzle with integral solenoid valve |
| JPH1162710A (en) * | 1997-08-07 | 1999-03-05 | Nippon Soken Inc | Fuel injection device |
| JP2001164996A (en) * | 1999-12-10 | 2001-06-19 | Yanmar Diesel Engine Co Ltd | Gaseous fuel supplying valve |
| DE102005048545A1 (en) * | 2005-10-11 | 2007-04-12 | Robert Bosch Gmbh | Fuel injection valve for e.g. mixture compressing and externally-ignited internal combustion engine, has flange serving as stopper for armature, where stopper limits axial free path and is arranged at valve needle guide |
| CN201339519Y (en) * | 2008-12-01 | 2009-11-04 | 中国汽车工程研究院有限公司 | Direct-acting fuel gas nozzle for internal combustion engine |
| US20100236526A1 (en) * | 2009-03-20 | 2010-09-23 | Tianjin University | Common rail electronic control injector |
| US20150211464A1 (en) * | 2012-10-19 | 2015-07-30 | Mitsubishi Heavy Industries, Ltd. | Fuel gas injection valve, dual-fuel gas engine, and fuel gas injection method |
| RU136098U1 (en) * | 2013-03-27 | 2013-12-27 | Общество с ограниченной ответственностью "Научно-технический центр "Авангард" (ООО "НТЦ "Авангард") | ELECTROMAGNETIC FUEL INJECTOR |
| CN103867780A (en) * | 2014-04-02 | 2014-06-18 | 中山市思源电器有限公司 | Fuel gas electromagnetism proportional valve |
| CN106089500A (en) * | 2016-07-29 | 2016-11-09 | 东风商用车有限公司 | Straight-through type double-channel gas injection valve |
| CN206000643U (en) * | 2016-07-29 | 2017-03-08 | 东风商用车有限公司 | Straight-through type double-channel gas injection valve |
| CN206816387U (en) * | 2017-06-28 | 2017-12-29 | 哈尔滨工程大学 | A kind of double electromagnetism fuel gas injection valves of combined type |
| CN210135012U (en) * | 2019-05-21 | 2020-03-10 | 潍柴动力股份有限公司 | Gas injection valve |
| CN111005824A (en) * | 2019-12-20 | 2020-04-14 | 哈尔滨工程大学 | Intensified flow-guiding type large-flow injection device of gas fuel engine |
| CN111365146A (en) * | 2020-04-14 | 2020-07-03 | 石家庄玖祥科技有限公司 | Double-gas injection device |
| CN112984196A (en) * | 2021-01-20 | 2021-06-18 | 东风柳州汽车有限公司 | Electromagnetic air valve |
| CN113202658A (en) * | 2021-05-08 | 2021-08-03 | 河南航天液压气动技术有限公司 | Small-flow miniature electromagnetic valve and assembly adjusting method thereof |
| CN216642308U (en) * | 2021-12-01 | 2022-05-31 | 漫索(苏州)控制***有限公司 | Gas nozzle |
Non-Patent Citations (1)
| Title |
|---|
| 陈春雨;秦胜林;: "车用燃气喷嘴响应时间分析", 科技创新与应用, no. 20, pages 52 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114233528B (en) | 2024-01-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216642308U (en) | Gas nozzle | |
| US6374814B1 (en) | Electric exhaust gas recirculation valve with integral position sensor and method of making | |
| KR20110082707A (en) | Fuel pump module | |
| CN201705500U (en) | High-speed fuel gas spraying solenoid valve for a vehicle | |
| CN114233528A (en) | Gas nozzle | |
| CN101089384A (en) | Fuel injector for internal combustion engine and corresponding method of manufacture | |
| CN106089500A (en) | Straight-through type double-channel gas injection valve | |
| US20070144154A1 (en) | Air filter with air flow segregation | |
| JPS61104156A (en) | Electromagnetic type fuel injection valve | |
| CN2911223Y (en) | Plate-type gas pulse jetting electromagnetic valve | |
| JP2023162288A (en) | Stator assembly with water-separating sleeve, manufacturing method for the same, and solenoid valve for water with the stator assembly | |
| CN103206320B (en) | Air filter shell | |
| CN100535431C (en) | Fuel ejecting valve | |
| JP2799834B2 (en) | Fuel supply unit | |
| CN202500682U (en) | Vacuum electromagnetic adjuster | |
| CN202300755U (en) | Electromagnetic valve type oil sprayer for gasoline engine | |
| CN215891326U (en) | Motorcycle carbon tank solenoid valve | |
| CN100373046C (en) | Fuel supply apparatus | |
| CN220816555U (en) | Air horn electromagnetic valve | |
| CN208456747U (en) | Fuel filter with iron dust filtration function | |
| CN212273211U (en) | Solenoid valve coil base for matching pilot head | |
| CN215310440U (en) | Novel oil filter element | |
| CN111853325A (en) | Integrated water inlet electromagnetic valve and implementation method | |
| KR100445963B1 (en) | Solenoid valve | |
| CN220955865U (en) | Air filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |