CN201650500U - Electromagnetic valve for jetting automobile gas fuel by electrical control - Google Patents
Electromagnetic valve for jetting automobile gas fuel by electrical control Download PDFInfo
- Publication number
- CN201650500U CN201650500U CN2009202611201U CN200920261120U CN201650500U CN 201650500 U CN201650500 U CN 201650500U CN 2009202611201 U CN2009202611201 U CN 2009202611201U CN 200920261120 U CN200920261120 U CN 200920261120U CN 201650500 U CN201650500 U CN 201650500U
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- China
- Prior art keywords
- valve
- valve body
- connecting sleeve
- valve seat
- catch
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- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The utility model discloses an electromagnetic valve for jetting automobile gas fuel by electrical control, which is characterized by comprising a valve body, a coil, a power socket, a valve plug, an insulating bush, a baffle sheet, a connecting bush, a valve seat, an intake nozzle, a jetting nozzle, a valve sheet and a compression spring, wherein a sealing washer is arranged respectively between the combined surfaces between the connecting bush and the baffle sheet, the combined surfaces between the baffle sheet and the valve body, the combined surfaces between the insulating bush and the valve plug, the combined surfaces between the intake nozzle and the connecting bush, the combined surfaces between the column in the valve seat and the inner hole of the connecting bush, as well as the combined surfaces between the jetting nozzle and the valve seat. The electromagnetic valve is used for supplying combustible gas fuel for engines of automobiles so as to meet the requirements of the automobiles on using gas fuel.
Description
Technical field
The utility model relates to a kind of solenoid valve to motor car engine supply combustible fuel gas.
Background technique
One over 100 years, constantly development of world car industry, human society and economic progress have been played huge impetus, but, caused huge pollution to environment for human survival and atmosphere simultaneously also constantly consuming a large amount of petroleum-based energy (mainly being gasoline and diesel product).
In order to reduce and substitute limited petroleum resource consumption, constantly reduce motor vehicle emission the pollution that is caused, countries in the world are all adopted and have been developed vehicular gaseous propellant, wherein most importantly compressed natural gas (CNG), liquefied petroleum gas (LPG) (LPG) and hydrogen (H2).
China is also promoting the use of various vehicular gaseous propellants gradually over nearly 20 years, estimates that 20-30 also has bigger development from now on.
After entering twentieth century, with use vapour, the diesel fuel automobile is the same, add tight motor vehicle emission request of national standard in order to reach to bring in constant renewal in, strengthen power in order to obtain better Economy simultaneously, adopt the motor car engine of gaseous fuel also all to adopt the computer electronic control system, its core control part is computer electronic control unit (ECU), and most important executive component is gaseous fuel electric-controlled injection solenoid valve.
The effect of electric-controlled injection solenoid valve is the control command according to ECU, accurate precision with microsecond level (1 second=1000000 microsecond), the opening and closing electric spray valve, with in each cylinder admission line of motor, in certain sequence regularly, by milligram level (=1000 milligrams of 1 grams) precision gas jet fuel, make and start function under various operating modes, can both than under work at optimum air/fuel.Use the CNG gaseous fuel to be example, use after the electric spray valve of electric control system controls, can make operating fuel cost decline 30%-50%, exhaust emission reduces 50%-80%, has great economic benefit and social enviroment protection benefit.
But, can not be applicable to gaseous fuel for altogether the solenoid valve of gasoline or diesel oil to motor car engine in the past, therefore designing a kind of solenoid valve to motor car engine supply combustible fuel gas has become exigence.
Summary of the invention
The purpose of this utility model provides a kind of solenoid valve to motor car engine supply combustible fuel gas, to satisfy the needs of automobile using gases fuel.
In order to realize above-mentioned purpose, can adopt following technological scheme: the vehicular gaseous propellant electric-controlled injection solenoid valve of this programme comprises:
One valve body, this valve body are the sleeve of a circle, and the rear end of its endoporus is provided with one section female thread;
One coil, this coil are the sleeve of a circle, and its cylindrical is packed in valve body inner bore portion before, and the front-end face of its front-end face and valve body is on same plane, and there is an external cord its rear end;
One power socket, this power socket is a round basin shape of being made by elastic insulating material, the inner hole sleeve of circle basin is contained on the cylindrical of valve rear end, the top of circle basin has an acclivitous cylindrical pedestal, the upper end of this pedestal is provided with a blind hole, above-mentioned external cord from following insulating bush neutralizes this pedestal, pass and outside reach in the blind hole;
One spool, this spool rear portion is a disk, is shaped on the external screw thread that the female thread with the valve body inner bore rear end matches on the cylindrical of disk, and the front portion of disk is connected with the circular shaft of a concentricity line, and circular shaft is divided into two sections, and one section of front is thinner, and the one section summary in back is thick; In the female threaded hole at valve body rear portion, stretch in the endoporus of coil by circular shaft with screw fit for this disk;
One insulating bush, this insulating bush are assemblied in the space between valve body, coil and the spool;
One catch, this catch are an oblate annular, and its diameter is identical with the external diameter of valve body front end, and it is assemblied on the front-end face of valve body with screw;
One connecting sleeve, this connecting sleeve comprises the flange plate that a diameter is identical with the external diameter of valve body front end, the front portion of flange plate is connected with side's cover of a concentricity line, the diameter of bore of side's cover is identical with bore dia within the flange plate, also is provided with an air inlet nozzle female threaded hole vertical with the connecting sleeve vertical center line in the hole within side's cover; The flange plate of this connecting sleeve puts together on the front of catch and valve body with two screws;
One air inlet nozzle, this air inlet nozzle are assemblied in the air inlet nozzle female threaded hole of connecting sleeve side;
One valve seat, this valve seat comprises the disk of a center band blast nozzle female threaded hole, be provided with a cylinder of projection backward at the disk ear end face, the hole matched within the cylindrical of this cylinder overlapped with the side, the rear portion of cylinder connects a frustum, the back of this frustum is also connecting a small column that external diameter is thinner, the center of this frustum and two cylinders be equipped with one with the valve opening of the concentricity line of aforesaid blast nozzle female threaded hole; The disk of this valve seat puts together on the front end of connecting sleeve side's cover with two screws;
One blast nozzle, longitudinal center's axis of this blast nozzle is provided with spray orifice, and its middle part is flat six sides, and flat six sides' rear portion connects the cover of an outer round belt external screw thread, blast nozzle female threaded hole in this external screw thread and the aforesaid valve seat matches, and flat six sides' front portion connects a nozzle; This blast nozzle is assemblied in the front end of valve seat;
One valve block, this valve block are round sheet, and it is contained in the endoporus of flange plate of connecting sleeve, between the small column ear end face of the front-end face of catch and valve seat; The Thickness Design of this valve block is: when the rear surface of valve block is attached to the front surface of catch, leave suitable gap between the end face after the front surface of valve block and the small column in the valve seat;
One pressure spring, this pressure spring encapsulation is outside one section thinner circular shaft of spool, and its front end withstands on the ear end face of valve block;
Between the cylinder in connecting sleeve and catch, catch and valve body, insulating bush and spool, air inlet nozzle and connecting sleeve, valve seat and the endoporus of connecting sleeve and the junction plane between blast nozzle and the valve seat one seal washer is housed respectively.
When the rear surface of valve block is attached to the front surface of catch, leave suitable gap preferably between the 0.4-0.6 millimeter between the surface after the front surface of valve block and the frustum in the valve seat.
Above-mentioned said " preceding " and " back " are defined as: blast nozzle outlet be before, and meanwhile opposite be after.
The working principle of above-mentioned solenoid valve is (referring to Fig. 1 and Fig. 2): with ECG send logical, disconnected control signal is converted to the left and right displacement of valve block, spray orifice opening and closing on the valve seat realize the injection of gaseous fuel and stop to spray.
In the spray orifice size. spool stroke, under certain situation such as gas differential pressure, the gaseous fuel emitted dose just only depends on the spool opening time before and after the spray orifice.So by the determined different discharge time length of computer among the ECG, timing that just can clock like precision is quantitatively to certain cylinder injection desired gas fuel.
Its concrete working procedure is as follows:
1, gaseous fuel enters solenoid valve from the outer end of air inlet nozzle, and when coil was not switched on, valve block was shifted to right-hand member the valve port on the valve seat is sealed under the acting in conjunction of spring force and gas fuel pressure. and at this moment there is not gaseous fuel from electrically-controlled valve, to eject;
2, when ECG sends electric spray valve energising control command, coil electricity also produces magnetic field in electrically-controlled valve, under the effect of magnetic force, valve block overcomes spring pressure and gas pressure is shifted to left end rapidly, valve port is opened, and gaseous fuel ejects from the blast nozzle of solenoid valve;
3, when ECG sends electric spray valve outage control command, the coil coil blackout, magnetic field disappears, and under spring force and gas fuel pressure effect, valve block moves to right-hand member rapidly, and the spray orifice on the valve seat is closed again, and solenoid valve stops gaseous fuel and sprays.
The beneficial effects of the utility model are:
1, it has high switching speed.
Various motor car engine maximum speeds are about 3000-8000 rev/min, and phase shorter workweek of each solenoid valve break-make is about the 20-40 millisecond, and the shortest discharge time only is 5-10 millisecond (1 second=1000 milliseconds), and begin at every turn and close closed procedure only to be 1-2ms.
2, it can accurately control injection tolerance.
This solenoid valve can guarantee that the discharge time conformity reaches 0.1 Millisecond, has satisfied the requirement of conformity error≤5% of each cylinder working of motor.
3, the life-span of this solenoid valve long, can reach solenoid valve and open and close more than 600,000,000 times.
Be convenient to understand in order to make the utility model with more clear, below by accompanying drawing and reality
Executing example is described further it.
Description of drawings
Fig. 1 is that partial schematic diagram is looked on the right side of embodiment's 1 of the present utility model solenoid valve;
Fig. 2 is the AOA stagewise cutaway view schematic representation of Fig. 1.
Embodiment
Embodiment 1, referring to Fig. 1-Fig. 2.The solenoid valve A 3 of present embodiment comprises:
One valve body 10, this valve body 10 is the sleeve of a circle, the rear end of its endoporus is provided with one section female thread;
One coil 50, this coil 50 is the sleeve of a circle, and its cylindrical is packed in valve body 10 endoporus portion before, and the front-end face of its front-end face and valve body 10 is on same plane, and there is an external cord 51 its rear end;
One power socket 40, this power socket 40 is a round basin shape of being made by elastic insulating material, the inner hole sleeve of circle basin is contained on the cylindrical of valve body 10 rear ends, the top of circle basin has an acclivitous cylindrical pedestal 41, the upper end of this pedestal 41 is provided with a blind hole 42, above-mentioned external cord 51 from these pedestals 41 of following insulating bush 150 neutralization, pass and outside reach in the blind hole 42;
One spool 20, these spool 20 rear portions are a disk, are shaped on the external screw thread that the female thread with valve body 10 endoporus rear ends matches on the cylindrical of disk, the front portion of disk is connected with the circular shaft of a concentricity line, circular shaft is divided into two sections, and one section of front is thinner, and the one section summary in back is thick; In the female threaded hole at valve body 10 rear portions, stretch in the endoporus of coil 50 by circular shaft with screw fit for this disk;
One insulating bush 150, this insulating bush 150 are assemblied in the space between valve body 10, coil 50 and the spool 20;
One catch 60, this catch 60 is an oblate annular, and its diameter is identical with the external diameter of valve body 10 front ends, and it is assemblied on the front-end face of valve body 10 with screw 140;
One connecting sleeve 180, this connecting sleeve 180 comprises the identical flange plate of external diameter of a diameter and valve body 10 front ends, the front portion of flange plate is connected with side's cover of a concentricity line, the diameter of bore of side's cover is identical with bore dia within the flange plate, also is provided with an air inlet nozzle female threaded hole 180 vertical with connecting sleeve 180 vertical center lines in the hole within side's cover; The flange plate of this connecting sleeve 180 puts together on the front of catch 60 and valve body 10 with two screws 70;
One air inlet nozzle (not shown), this air inlet nozzle are assemblied in the air inlet nozzle female threaded hole 180 of connecting sleeve 180 sides;
One valve seat 90, this valve seat 90 comprises the disk 91 of a center band blast nozzle female threaded hole, be provided with a cylinder 92 of projection backward at disk 91 ear end faces, the hole matched within the cylindrical of this cylinder 92 overlapped with the side, the rear portion of cylinder 92 connects a frustum 93, the back of this frustum 93 is also connecting a small column 94 that external diameter is thinner, the center of this frustum 93 and two cylinders 92,94 be equipped with one with the valve opening 95 of the concentricity line of aforesaid blast nozzle female threaded hole; Two screws 190 of disk 91 usefulness of this valve seat 90 put together on the front end of connecting sleeve 180 sides cover;
One blast nozzle 110, longitudinal center's axis of this blast nozzle 110 is provided with spray orifice 114, its middle part is flat six sides 112, flat six sides' 112 rear portion connects the cover 113 of an outer round belt external screw thread, blast nozzle female threaded hole in this external screw thread and the aforesaid valve seat 90 matches, and flat six sides' 112 front portion connects a nozzle 111; This blast nozzle 110 is assemblied in the front end of valve seat 90;
One valve block 80, this valve block 80 is a round sheet, it is contained in the endoporus of flange plate of connecting sleeve 180, between small column 94 ear end faces of the front-end face of catch 60 and valve seat 90; The Thickness Design of this valve block 80 is: when the rear surface of valve block 80 is attached to the front surface of catch 60, leave suitable gap between the end face after the small column 94 in the front surface of valve block 80 and the valve seat 90;
One pressure spring 160, these pressure spring 160 encapsulations are outside one section thinner circular shaft of spool 20, and its front end withstands on the ear end face of valve block 80;
The cylinder 92 in connecting sleeve 180 and catch 60, catch 60 and valve body 10, insulating bush 150 and spool 20, blast nozzle 110 and valve seat 90, valve seat 90 and the endoporus of connecting sleeve 180 and air inlet nozzle and connecting sleeve 180, between junction plane between a seal washer 130,120,30,100,200 is housed respectively.
Only be the preferred embodiment of the utility model below, but it does not limit practical range of the present utility model, the equivalent variations and the modification that promptly do not depart from claim of the present utility model and done must belong to the protection domain of the utility model.
Claims (2)
1. vehicular gaseous propellant electric-controlled injection solenoid valve is characterized in that comprising:
One valve body, this valve body are the sleeve of a circle, and the rear end of its endoporus is provided with one section female thread;
One coil, this coil are the sleeve of a circle, and its cylindrical is packed in valve body inner bore portion before, and the front-end face of its front-end face and valve body is on same plane, and there is an external cord its rear end;
One power socket, this power socket is a round basin shape of being made by elastic insulating material, the inner hole sleeve of circle basin is contained on the cylindrical of valve rear end, the top of circle basin has an acclivitous cylindrical pedestal, the upper end of this pedestal is provided with a blind hole, above-mentioned external cord from following insulating bush neutralizes this pedestal, pass and outside reach in the blind hole;
One spool, this spool rear portion is a disk, is shaped on the external screw thread that the female thread with the valve body inner bore rear end matches on the cylindrical of disk, and the front portion of disk is connected with the circular shaft of a concentricity line, and circular shaft is divided into two sections, and one section of front is thinner, and the one section summary in back is thick; In the female threaded hole at valve body rear portion, stretch in the endoporus of coil by circular shaft with screw fit for this disk;
One insulating bush, this insulating bush are assemblied in the space between valve body, coil and the spool;
One catch, this catch are an oblate annular, and its diameter is identical with the external diameter of valve body front end, and it is assemblied on the front-end face of valve body with screw;
One connecting sleeve, this connecting sleeve comprises the flange plate that a diameter is identical with the external diameter of valve body front end, the front portion of flange plate is connected with side's cover of a concentricity line, the diameter of bore of side's cover is identical with bore dia within the flange plate, also is provided with an air inlet nozzle female threaded hole vertical with the connecting sleeve vertical center line in the hole within side's cover; The flange plate of this connecting sleeve puts together on the front of catch and valve body with two screws;
One air inlet nozzle, this air inlet nozzle are assemblied in the air inlet nozzle female threaded hole of connecting sleeve side;
One valve seat, this valve seat comprises the disk of a center band blast nozzle female threaded hole, be provided with a cylinder of projection backward at the disk ear end face, the hole matched within the cylindrical of this cylinder overlapped with the side, the rear portion of cylinder connects a frustum, the back of this frustum is also connecting a small column that external diameter is thinner, the center of this frustum and two cylinders be equipped with one with the valve opening of the concentricity line of aforesaid blast nozzle female threaded hole; The disk of this valve seat puts together on the front end of connecting sleeve side's cover with two screws;
One blast nozzle, longitudinal center's axis of this blast nozzle is provided with spray orifice, and its middle part is flat six sides, and flat six sides' rear portion connects the cover of an outer round belt external screw thread, blast nozzle female threaded hole in this external screw thread and the aforesaid valve seat matches, and flat six sides' front portion connects a nozzle; This blast nozzle is assemblied in the front end of valve seat;
One valve block, this valve block are round sheet, and it is contained in the endoporus of flange plate of connecting sleeve, between the small column ear end face of the front-end face of catch and valve seat; The Thickness Design of this valve block is: when the rear surface of valve block is attached to the front surface of catch, leave suitable gap between the end face after the front surface of valve block and the small column in the valve seat;
One pressure spring, this pressure spring encapsulation is outside one section thinner circular shaft of spool, and its front end withstands on the ear end face of valve block;
Between the cylinder in connecting sleeve and catch, catch and valve body, insulating bush and spool, air inlet nozzle and connecting sleeve, valve seat and the endoporus of connecting sleeve and the junction plane between blast nozzle and the valve seat one seal washer is housed respectively.
2. vehicular gaseous propellant electric-controlled injection solenoid valve according to claim 1, it is characterized in that when the rear surface of valve block is attached to the front surface of catch leaving suitable gap between the surface after the front surface of valve block and the frustum in the valve seat is between the 0.4-0.6 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202611201U CN201650500U (en) | 2009-12-02 | 2009-12-02 | Electromagnetic valve for jetting automobile gas fuel by electrical control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202611201U CN201650500U (en) | 2009-12-02 | 2009-12-02 | Electromagnetic valve for jetting automobile gas fuel by electrical control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650500U true CN201650500U (en) | 2010-11-24 |
Family
ID=43115733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202611201U Expired - Fee Related CN201650500U (en) | 2009-12-02 | 2009-12-02 | Electromagnetic valve for jetting automobile gas fuel by electrical control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201650500U (en) |
-
2009
- 2009-12-02 CN CN2009202611201U patent/CN201650500U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20131202 |