CN113623103A - Solenoid valve for dual fuel injector - Google Patents
Solenoid valve for dual fuel injector Download PDFInfo
- Publication number
- CN113623103A CN113623103A CN202111169000.0A CN202111169000A CN113623103A CN 113623103 A CN113623103 A CN 113623103A CN 202111169000 A CN202111169000 A CN 202111169000A CN 113623103 A CN113623103 A CN 113623103A
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- Prior art keywords
- main
- auxiliary
- spring
- column
- armature
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- 239000000446 fuel Substances 0.000 title claims abstract description 19
- 230000009977 dual effect Effects 0.000 title claims description 9
- 230000005389 magnetism Effects 0.000 claims abstract description 16
- 238000002955 isolation Methods 0.000 claims description 33
- 230000003044 adaptive effect Effects 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 22
- 239000007789 gas Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 11
- 238000007789 sealing Methods 0.000 description 10
- 238000002347 injection Methods 0.000 description 9
- 239000007924 injection Substances 0.000 description 9
- 239000000295 fuel oil Substances 0.000 description 8
- 239000002737 fuel gas Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 1
- 239000000243 solution 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
- F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
- F02M43/04—Injectors peculiar thereto
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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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
- F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0059—Arrangements of valve actuators
- F02M63/0063—Two or more actuators acting on a single valve body
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention provides an electromagnetic valve for a dual-fuel injector, which comprises a main coil, an auxiliary coil, a main armature, an auxiliary armature, a magnetism isolating ring, a magnetism isolating sleeve, a main spring and an auxiliary spring, wherein the main coil is connected with the auxiliary coil through the main armature; the beneficial technical effects of the invention are as follows: the electromagnetic valve for the dual-fuel injector is provided, and the scheme can enable the two electromagnetic valves to be nested together, greatly reduce the space occupied by the electromagnetic valves and improve the structures of the dual-fuel injector and an engine.
Description
Technical Field
The invention relates to a solenoid valve structure, in particular to a solenoid valve for a dual-fuel injector.
Background
In order to realize independent control of fuel injection and fuel gas injection, two groups of electromagnetic valves are usually arranged on the existing dual-fuel injector for engines, and the two groups of electromagnetic valves are respectively used for controlling the timing and quantitative injection of fuel oil and fuel gas; there are problems in that: when two groups of electromagnetic valves are arranged, the most common way is to arrange the two groups of electromagnetic valves in parallel, and then respectively equip the two groups of electromagnetic valves with corresponding armature actuators and metering valves, and the arrangement mode needs to occupy larger radial space, so that the radial size of the injector is larger, the miniaturization of the injector is not facilitated, and the size of an engine is indirectly increased.
Disclosure of Invention
To solve the problems in the background art, the present invention provides a solenoid valve for a dual fuel injector, which is innovative in that: the electromagnetic valve comprises a main coil, an auxiliary coil, a main armature, an auxiliary armature, a magnetic isolation ring, a magnetic isolation sleeve, a main spring and an auxiliary spring;
the auxiliary coil is coaxially arranged in an inner hole of the main coil, and an isolation structure is arranged between the main coil and the auxiliary coil; the bottom of the inner hole of the secondary coil forms a supporting surface; a main spring washer is arranged on the supporting surface, an auxiliary spring washer is arranged in an inner hole of the main spring washer, and the lower end surface of the auxiliary spring washer is higher than the lower end surface of the main spring washer;
the main armature is composed of a body, an actuating column and a plurality of guide columns; the body is a disc-shaped structure body, a circular groove is formed in the middle of the upper end face of the body, and the circular groove enables the upper end face of the body to form an annular area; the execution column is arranged on the lower end face of the body and is coaxial with the circular groove; an axial through hole is formed in the middle of the bottom surface of the circular groove and penetrates through the actuating column; the guide posts are arranged on the bottom surface of the circular groove, the upper end surfaces of the guide posts are higher than the upper end surface of the body, and the guide posts are distributed around the axis of the axial through hole in a ring manner; the outer contour of the guide posts in the radial direction of the main armature encloses a first cylindrical area, and the first cylindrical area is matched with an inner hole of the auxiliary coil; the inner contour of the guide posts in the radial direction of the main armature encloses a second cylindrical area; two axial notches are arranged on the lower end surface of the execution column, and the two axial notches are symmetrical in position; the main armature is arranged on the lower side of the main coil, the annular region is opposite to the main coil in position, and the first cylindrical region is sleeved in an inner hole of the auxiliary coil;
the auxiliary armature is composed of a connecting disc, a spring connecting column and a driving column; the spring connecting column is arranged on the upper end face of the connecting disc, and the outer diameter of the spring connecting column is matched with the second cylindrical area; a step surface is arranged on the upper end surface of the spring connecting column; a plurality of adapting holes are formed in the connecting disc, correspond to the guide columns one by one and are through holes; the driving column is arranged on the lower end face of the connecting disc;
the outer contour of the magnetism isolating sleeve is matched with the corresponding areas of the circular groove and the axial through hole, the inner contour of the magnetism isolating sleeve is matched with the shapes of the connecting disc and the driving column, and the magnetism isolating sleeve is provided with a through hole matched with the guide column;
the magnetic isolation sleeve is attached to the main armature, the auxiliary armature is arranged in the magnetic isolation sleeve, the driving column is positioned in the axial through hole, the lower end of the driving column is positioned on the upper side of the axial gap, the lower end of the magnetic isolation sleeve is higher than the lower end of the driving column, the guide columns are sleeved in the plurality of adaptive holes in a one-to-one correspondence mode, and the spring connecting column is sleeved in the second cylindrical area;
the magnetic isolation ring is of a circular structure, the magnetic isolation ring is sleeved in an inner hole of the secondary coil, the lower end face of the magnetic isolation ring is in contact with the upper end face of the guide column, and the inner diameter of the magnetic isolation ring is larger than the outer diameter of the spring connecting column;
the main spring is arranged in an inner hole of the secondary coil, the lower end of the main spring is in contact with the magnetism isolating ring, the upper end of the main spring is in contact with the main spring washer, and the main spring is in a compressed state; the auxiliary spring is arranged in an inner hole of the main spring, the lower end of the auxiliary spring is in contact with the step surface, the upper end of the auxiliary spring is in contact with the auxiliary spring washer, and the auxiliary spring is in a compressed state;
when the main armature is located at the position of the maximum upward stroke and the auxiliary armature is located at the position of the maximum downward stroke, the distance between the bottom surface of the circular groove and the lower end surface of the connecting disc is larger than the thickness of the magnetic isolation sleeve.
The principle of the invention is as follows: when the air injection valve works, the main armature and the auxiliary armature are respectively controlled by the main coil and the auxiliary coil, the main armature is used for controlling air injection, the auxiliary armature is used for controlling oil injection, the actions of the main armature and the auxiliary armature are not interfered with each other, and the related electric control unit can control the main armature and the auxiliary armature to act independently or cooperatively according to a set program.
After the scheme of the invention is adopted, two groups of electromagnetic valves are arranged in a nesting mode (the main coil and the auxiliary coil are nested with each other, and the main armature and the auxiliary armature are nested with each other), the occupation of the structure to the radial space can be effectively reduced, and the size of the dual-fuel injector can be reduced by combining with a corresponding metering valve (the structure of the metering valve is also improved and is reported in another case by the inventor), so that the structural integration degree of the engine is further improved indirectly.
Preferably, the solid part of the bottom surface of the circular groove is provided with a plurality of lightening holes.
Preferably, the guide post is fan-shaped in cross section.
The beneficial technical effects of the invention are as follows: the electromagnetic valve for the dual-fuel injector is provided, and the scheme can enable the two electromagnetic valves to be nested together, greatly reduce the space occupied by the electromagnetic valves and improve the structures of the dual-fuel injector and an engine.
Drawings
FIG. 1 is a first schematic structural diagram of the present invention;
FIG. 2 is a second schematic structural diagram of the present invention (the cutting positions of FIGS. 1 and 2 are different);
FIG. 3 is a first schematic diagram of the structure of a main armature;
FIG. 4 is a second structural diagram of the main armature;
FIG. 5 is a schematic diagram of a main armature structure;
FIG. 6 is a first structural diagram of the secondary armature;
FIG. 7 is a structural schematic diagram of a secondary armature;
FIG. 8 is a first usage state diagram of the present invention;
FIG. 9 is a second usage state diagram of the present invention (the cutting positions are different in FIG. 8 and FIG. 9);
FIG. 10 is a schematic diagram of an oil control metering valve;
FIG. 11 is a schematic diagram of a dual fuel injector configuration employing aspects of the present invention;
the names corresponding to each mark in the figure are respectively: the device comprises a main coil 1, an auxiliary coil 2, a main armature 3, a body 3-1, an actuating column 3-2, a guide column 3-3, an axial gap 3-4, an auxiliary armature 4, a connecting disc 4-1, a spring connecting column 4-2, a driving column 4-3, an adapting hole 4-4, a step surface 4-5, a magnetic isolation ring 5, a magnetic isolation sleeve 6, a main spring 7, an auxiliary spring 8, an oil control sealing ball seat 9, an air control sealing ball seat 10, a sealing steel ball 11, an armature guide sleeve 12, an adjusting pad 13, an oil control metering valve 14, a pore channel 14-1, a conical surface 14-2, an air discharge channel 14-3, an air control metering valve 15 and an oil inlet channel 15-1.
Detailed Description
A solenoid valve for a dual fuel injector, the innovation of which is: the electromagnetic valve comprises a main coil 1, an auxiliary coil 2, a main armature 3, an auxiliary armature 4, a magnetic isolation ring 5, a magnetic isolation sleeve 6, a main spring 7 and an auxiliary spring 8;
the auxiliary coil 2 is coaxially arranged in an inner hole of the main coil 1, and an isolation structure is arranged between the main coil 1 and the auxiliary coil 2; the bottom of the inner hole of the secondary coil 2 forms a supporting surface; a main spring washer is arranged on the supporting surface, an auxiliary spring washer is arranged in an inner hole of the main spring washer, and the lower end surface of the auxiliary spring washer is higher than the lower end surface of the main spring washer;
the main armature 3 consists of a body 3-1, an execution column 3-2 and a plurality of guide columns 3-3; the body 3-1 is a disc-shaped structure body, a circular groove is formed in the middle of the upper end face of the body 3-1, and the circular groove enables the upper end face of the body 3-1 to form an annular area; the actuating column 3-2 is arranged on the lower end face of the body 3-1, and the actuating column 3-2 is coaxial with the circular groove; an axial through hole is formed in the middle of the bottom surface of the circular groove and penetrates through the actuating column 3-2; the guide posts 3-3 are arranged on the bottom surface of the circular groove, the upper end surfaces of the guide posts 3-3 are higher than the upper end surface of the body 3-1, and the guide posts 3-3 are distributed around the axis of the axial through hole in a ring shape; the outer contour of the guide posts 3-3 in the radial direction of the main armature 3 encloses a first cylindrical area which is matched with the inner hole of the secondary coil 2; the inner contour of the plurality of guide posts 3-3 in the radial direction of the main armature 3 encloses a second cylindrical area; two axial notches 3-4 are arranged on the lower end face of the actuating column 3-2, and the positions of the two axial notches 3-4 are symmetrical; the main armature 3 is arranged at the lower side of the main coil 1, the annular region is opposite to the main coil 1, and the first cylindrical region is sleeved in an inner hole of the auxiliary coil 2;
the auxiliary armature 4 consists of a connecting disc 4-1, a spring connecting column 4-2 and a driving column 4-3; the spring connecting column 4-2 is arranged on the upper end face of the connecting disc 4-1, and the outer diameter of the spring connecting column 4-2 is matched with the second cylindrical area; a step surface 4-5 is arranged on the upper end surface of the spring connecting column 4-2; a plurality of adaptive holes 4-4 are formed in the connecting disc 4-1, the adaptive holes 4-4 correspond to the guide columns 3-3 one by one, and the adaptive holes 4-4 are through holes; the driving column 4-3 is arranged on the lower end face of the connecting disc 4-1;
the outer contour of the magnetism isolating sleeve 6 is matched with the corresponding areas of the circular groove and the axial through hole, the inner contour of the magnetism isolating sleeve 6 is matched with the shapes of the connecting disc 4-1 and the driving column 4-3, and the magnetism isolating sleeve 6 is provided with a through hole matched with the guiding column 3-3;
the magnetic isolation sleeve 6 is attached to the main armature 3, the auxiliary armature 4 is arranged in the magnetic isolation sleeve 6, the driving column 4-3 is positioned in the axial through hole, the lower end of the driving column 4-3 is positioned on the upper side of the axial gap 3-4, the lower end of the magnetic isolation sleeve 6 is higher than the lower end of the driving column 4-3, the guide columns 3-3 are sleeved in the adaptive holes 4-4 in a one-to-one correspondence mode, and the spring connecting column 4-2 is sleeved in the second cylindrical area;
the magnetic isolation ring 5 is of a circular structure, the magnetic isolation ring 5 is sleeved in an inner hole of the auxiliary coil 2, the lower end face of the magnetic isolation ring 5 is in contact with the upper end face of the guide post 3-3, and the inner diameter of the magnetic isolation ring 5 is larger than the outer diameter of the spring connecting post 4-2;
the main spring 7 is arranged in an inner hole of the secondary coil 2, the lower end of the main spring 7 is in contact with the magnetism isolating ring 5, the upper end of the main spring 7 is in contact with a main spring washer, and the main spring 7 is in a compressed state; the auxiliary spring 8 is arranged in an inner hole of the main spring 7, the lower end of the auxiliary spring 8 is in contact with the step surface 4-5, the upper end of the auxiliary spring 8 is in contact with an auxiliary spring washer, and the auxiliary spring 8 is in a compressed state;
when the main armature 3 is positioned at the position of the maximum upward stroke and the auxiliary armature 4 is positioned at the position of the maximum downward stroke, the distance between the bottom surface of the circular groove and the lower end surface of the connecting disc 4-1 is larger than the thickness of the magnetism isolating sleeve 6.
Furthermore, a plurality of lightening holes are formed in the solid part of the bottom surface of the circular groove.
Further, the cross section of the guide column 3-3 is fan-shaped.
Referring to fig. 8 and 9, which show a metering valve assembly used in conjunction with the present invention, the metering valve assembly is composed of an oil control metering valve 14 and an air control metering valve 15, wherein the air control metering valve 15 is similar to the prior art, the oil control metering valve 14 is newly designed by the inventor, referring to fig. 10, the upper end surface of the oil control metering valve 14 is provided with a conical surface 14-2 matched with a sealing steel ball 11, a driving column 4-3 controls the opening and closing of an oil hole at the bottom of the conical surface 14-2 through an oil control sealing ball seat 9 and a corresponding sealing steel ball 11 (high-pressure fuel reaches the oil hole at the bottom of the conical surface 14-2 through an oil inlet channel 15-1), two sides of the conical surface 14-2 are provided with an orifice channel 14-1 matched with an actuating column 3-2, the actuating column 3-2 extends into the orifice channel 14-1 and contacts with the air control sealing ball seat 10 (the lower end surface of the oil control metering valve 14 is provided with an installation cavity matched with the air control sealing ball seat 10, the installation cavity is communicated with the pore passage 14-1), the execution column 3-2 controls the opening and closing of the air leakage hole at the bottom of the corresponding conical surface on the air control and metering valve 15 through the air control sealing ball seat 10 and the corresponding sealing steel ball 11 (high-pressure gas is accumulated in the cavity at the lower side of the air leakage hole); by combining the metering valve assembly with the solution of the invention, a miniaturized dual fuel injector can be realized.
Referring to fig. 11, the lower injection structure of the injector in the figure is the same as or different from that of the prior art, and high-pressure fuel gas and high-pressure fuel oil respectively enter the injector through independent pore channels, wherein the high-pressure fuel oil is divided into two paths by an oil channel, one path of the high-pressure fuel oil is led to an oil nozzle, the other path of the high-pressure fuel oil is led to an oil inlet channel 15-1, similarly, the high-pressure fuel gas is also divided into two paths by the air channel, the other path of the high-pressure fuel oil is led to an air nozzle, and the other path of the high-pressure fuel gas is led to a cavity on the lower side of an air release hole; when the auxiliary armature 4 is lifted upwards, high-pressure fuel oil is decompressed through an oil hole at the bottom of the conical surface 14-2, an oil control needle valve at the lower oil nozzle is jacked up under the action of the high-pressure fuel oil, the oil nozzle is opened, and an injector performs oil injection operation; when the main armature 3 is lifted upwards, high-pressure gas is released through a gas release hole in the gas control metering valve 15 (a gas release channel 14-3 is arranged on the side wall of the oil control metering valve 14, and gas released from the gas release hole is discharged out of the metering valve assembly through the gas release channel 14-3), a gas control needle valve at a lower gas nozzle is jacked up under the action of the high-pressure gas, the gas nozzle is opened, and the ejector performs gas injection operation.
Claims (3)
1. A solenoid valve for a dual fuel injector characterized by: the electromagnetic valve comprises a main coil (1), an auxiliary coil (2), a main armature (3), an auxiliary armature (4), a magnetic isolation ring (5), a magnetic isolation sleeve (6), a main spring (7) and an auxiliary spring (8);
the auxiliary coil (2) is coaxially arranged in an inner hole of the main coil (1), and an isolation structure is arranged between the main coil (1) and the auxiliary coil (2); the bottom of the inner hole of the secondary coil (2) forms a supporting surface; a main spring washer is arranged on the supporting surface, an auxiliary spring washer is arranged in an inner hole of the main spring washer, and the lower end surface of the auxiliary spring washer is higher than the lower end surface of the main spring washer;
the main armature (3) consists of a body (3-1), an actuating column (3-2) and a plurality of guide columns (3-3); the body (3-1) is a disc-shaped structure body, a circular groove is formed in the middle of the upper end face of the body (3-1), and an annular area is formed on the upper end face of the body (3-1) through the circular groove; the actuating column (3-2) is arranged on the lower end face of the body (3-1), and the actuating column (3-2) is coaxial with the circular groove; an axial through hole is formed in the middle of the bottom surface of the circular groove and penetrates through the actuating column (3-2); the guide posts (3-3) are arranged on the bottom surface of the circular groove, the upper end surfaces of the guide posts (3-3) are higher than the upper end surface of the body (3-1), and the guide posts (3-3) are distributed around the axis of the axial through hole in a ring shape; the outer contour of the guide posts (3-3) in the radial direction of the main armature (3) encloses a first cylindrical area which is matched with the inner hole of the secondary coil (2); the inner contour of the guide columns (3-3) in the radial direction of the main armature (3) encloses a second cylindrical area; two axial notches (3-4) are arranged on the lower end face of the execution column (3-2), and the two axial notches (3-4) are symmetrical in position; the main armature (3) is arranged on the lower side of the main coil (1), the annular region is opposite to the main coil (1), and the first cylindrical region is sleeved in an inner hole of the auxiliary coil (2);
the auxiliary armature (4) consists of a connecting disc (4-1), a spring connecting column (4-2) and a driving column (4-3); the spring connecting column (4-2) is arranged on the upper end face of the connecting disc (4-1), and the outer diameter of the spring connecting column (4-2) is matched with the second cylindrical area; a step surface (4-5) is arranged on the upper end surface of the spring connecting column (4-2); a plurality of adaptive holes (4-4) are formed in the connecting disc (4-1), the adaptive holes (4-4) correspond to the guide columns (3-3) one by one, and the adaptive holes (4-4) are through holes; the driving column (4-3) is arranged on the lower end face of the connecting disc (4-1);
the outer contour of the magnetism isolating sleeve (6) is matched with the corresponding areas of the circular groove and the axial through hole, the inner contour of the magnetism isolating sleeve (6) is matched with the shapes of the connecting disc (4-1) and the driving column (4-3), and the magnetism isolating sleeve (6) is provided with the through hole matched with the guiding column (3-3);
the magnetic isolation sleeve (6) is attached to the main armature (3), the auxiliary armature (4) is arranged in the magnetic isolation sleeve (6), the driving column (4-3) is positioned in the axial through hole, the lower end of the driving column (4-3) is positioned on the upper side of the axial gap (3-4), the lower end of the magnetic isolation sleeve (6) is higher than the lower end of the driving column (4-3), the guide columns (3-3) are sleeved in the adaptive holes (4-4) in a one-to-one correspondence mode, and the spring connecting column (4-2) is sleeved in the second cylindrical area;
the magnetic isolation ring (5) is of a circular ring structure, the magnetic isolation ring (5) is sleeved in an inner hole of the auxiliary coil (2), the lower end face of the magnetic isolation ring (5) is in contact with the upper end face of the guide post (3-3), and the inner diameter of the magnetic isolation ring (5) is larger than the outer diameter of the spring connecting post (4-2);
the main spring (7) is arranged in an inner hole of the auxiliary coil (2), the lower end of the main spring (7) is in contact with the magnetism isolating ring (5), the upper end of the main spring (7) is in contact with a main spring gasket, and the main spring (7) is in a compressed state; the auxiliary spring (8) is arranged in an inner hole of the main spring (7), the lower end of the auxiliary spring (8) is in contact with the step surface (4-5), the upper end of the auxiliary spring (8) is in contact with an auxiliary spring gasket, and the auxiliary spring (8) is in a compressed state;
when the main armature (3) is located at the position of the maximum upward stroke and the auxiliary armature (4) is located at the position of the maximum downward stroke, the distance between the bottom surface of the circular groove and the lower end surface of the connecting disc (4-1) is larger than the thickness of the magnetism isolating sleeve (6).
2. Solenoid valve for dual fuel injector according to claim 1, characterized in that: and a plurality of lightening holes are formed in the solid part of the bottom surface of the circular groove.
3. Solenoid valve for dual fuel injector according to claim 1, characterized in that: the cross section of the guide column (3-3) is fan-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111169000.0A CN113623103B (en) | 2021-10-08 | Solenoid valve for dual fuel injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111169000.0A CN113623103B (en) | 2021-10-08 | Solenoid valve for dual fuel injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113623103A true CN113623103A (en) | 2021-11-09 |
| CN113623103B CN113623103B (en) | 2024-05-10 |
Family
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040169095A1 (en) * | 2002-12-12 | 2004-09-02 | Marcello Cristiani | Electromagnetic fuel injector for an internal combustion engine with a monolithic tubular member |
| EP2194543A1 (en) * | 2008-12-03 | 2010-06-09 | Delphi Technologies Holding S.à.r.l. | Solenoid actuator |
| DE102014225359A1 (en) * | 2014-12-10 | 2016-06-16 | Continental Automotive Gmbh | Valve arrangement for a fuel injection system and fuel injection system |
| CN106762292A (en) * | 2017-01-18 | 2017-05-31 | 哈尔滨工程大学 | A kind of board-like electric-controlled fuel injector of minute hand valve opening with ditch |
| CN109253002A (en) * | 2018-07-26 | 2019-01-22 | 哈尔滨工程大学 | Variable boost is than pressure accumulation type electric control fuel oil jet system |
| CN215804905U (en) * | 2021-10-08 | 2022-02-11 | 中国重汽集团重庆燃油喷射系统有限公司 | Solenoid valve for dual fuel injector |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040169095A1 (en) * | 2002-12-12 | 2004-09-02 | Marcello Cristiani | Electromagnetic fuel injector for an internal combustion engine with a monolithic tubular member |
| EP2194543A1 (en) * | 2008-12-03 | 2010-06-09 | Delphi Technologies Holding S.à.r.l. | Solenoid actuator |
| DE102014225359A1 (en) * | 2014-12-10 | 2016-06-16 | Continental Automotive Gmbh | Valve arrangement for a fuel injection system and fuel injection system |
| CN106762292A (en) * | 2017-01-18 | 2017-05-31 | 哈尔滨工程大学 | A kind of board-like electric-controlled fuel injector of minute hand valve opening with ditch |
| CN109253002A (en) * | 2018-07-26 | 2019-01-22 | 哈尔滨工程大学 | Variable boost is than pressure accumulation type electric control fuel oil jet system |
| CN215804905U (en) * | 2021-10-08 | 2022-02-11 | 中国重汽集团重庆燃油喷射系统有限公司 | Solenoid valve for dual fuel injector |
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Address after: 401120 No.6 cuining Road, jingkaiyuan, Liangjiang New District, Yubei District, Chongqing Applicant after: Heavy Oil High Tech Electronic Fuel Injection System Co.,Ltd. Address before: 401120 No.6 cuining Road, jingkaiyuan, Liangjiang New District, Yubei District, Chongqing Applicant before: Heavy oil high tech electronic fuel injection system (Chongqing) Co.,Ltd. Address after: 401120 No.6 cuining Road, jingkaiyuan, Liangjiang New District, Yubei District, Chongqing Applicant after: Heavy oil high tech electronic fuel injection system (Chongqing) Co.,Ltd. Address before: 401120 No.6 cuining Road, jingkaiyuan, Liangjiang New District, Yubei District, Chongqing Applicant before: CHONGQING FUEL INJECTION SYSTEM CO., LTD. OF CHINA NATIONAL HEAVY DUTY TRUCK Group Corp. |
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