CN2527729Y - Electric controlled fuel spray valve for gas fuel engine - Google Patents
Electric controlled fuel spray valve for gas fuel engine Download PDFInfo
- Publication number
- CN2527729Y CN2527729Y CN 02221962 CN02221962U CN2527729Y CN 2527729 Y CN2527729 Y CN 2527729Y CN 02221962 CN02221962 CN 02221962 CN 02221962 U CN02221962 U CN 02221962U CN 2527729 Y CN2527729 Y CN 2527729Y
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- CN
- China
- Prior art keywords
- valve
- armature
- valve body
- hole
- keeper
- 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.)
- Expired - Lifetime
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses an electric control fuel injection valve for a gas engine, wherein, the electromagnet adopted by the injection valve is a suction-type electromagnet; a valve seat and a guide bushing are arranged in a hole on the right part of the valve body; a pole terminal and a keeper tube are arranged in a hole on the left part of the valve body; a keeper with a taper valve is arranged in the keeper tube; a highly rigid retaining pin for impact resistance is respectively arranged ion the keeper and the pole terminal; a coil is sleeved on the keeper tube. The utility model has the advantages of simple structure, higher reliability, lower manufacturing costs and long service life, which is not easy to be damaged and is easy for flow adjustment, and can supply large-flux gas.
Description
The utility model relates to a kind of electrically controlled fuel jetting valve for gas fuel engine, belongs to gaseous propellant engine Fuelinjection nozzle technical field.
At present, fuel electric-control injection valve used in the prior art mainly contains two classes, and a class is to use petrol engine gasoline electric-controlled fuel injector as fuel gas injection valve, and another kind of is the fuel gas injection valve that designs for combustion gas specially.First kind fuel gas injection valve is the gasoline electric-controlled fuel injector owing to what adopt, and the latus rectum of control combustion gas circulation is generally less, thereby can't satisfy the combustion gas needs than high power engine; Though and second class is the combustion gas specialized designs, ubiquity accuracy of manufacturing and is required height, makes problems such as difficulty, cost height; And the electromagnet in the existing electric controlled injection valve generally adopts thrust formula magnet control tapering valve, and thrust formula electromagnet not only exists many, the baroque problems of moving element, and because the thrust of electromagnet makes tapering valve and the bigger impact force of its valve seat generation easily, thereby exist also that functional reliability is lower, the easy impaired problem of valve.
The purpose of this utility model is: provide a kind of simple in structure, reliability is higher, manufacture cost is lower, not fragile, be easy to the flow adjustment and be adapted to the electrically controlled fuel jetting valve for gas fuel engine of big flow fuel gas supply.
The utility model is to constitute like this: it is provided with left hole (14) and right hole (17) in valve body (1), valve seat (2) and guide bush (3) are housed in the right hole (17) of valve body (1), pole shoe (12) and armature pipe (13) are housed in the left hole (14) of valve body (1), one end of armature pipe (13) is fixed on the pole shoe (12), an armature (6) that has tapering valve (4) is housed in armature pipe (13) and valve body (1), on the cylindrical of the right half part of armature (6), be with a spring (5), the left side of spring (5) leans on valve body (1), the right leans on the boss (15) of armature (6), electromagnetic attraction coil (9) is enclosed within on the armature pipe (13), and is fastened on the pole shoe (12) by screw (11) and cushion (10); In armature (6) and pole shoe (12), be equipped with one respectively and be used to prevent shock proof high hardness stop pin (7) and (8).
Owing to adopted technique scheme, the utility model compared with prior art, at first the utility model changes the thrust electromagnet into the suction electromagnet, the quantity and the required precision of movement parts have been reduced, thereby it is simple in structure, and reduced the impact force that tapering valve and its valve seat produce, improved valve reliability and operating life; Secondly because part of the present utility model is few, in the utility model, can increase the diameter of return spring, thereby improve the fatigue resistance of spring and increase its working life; Secondly, in the utility model, adopt the high hardness stop pin again, improved the impact resistance between armature and the pole shoe; At last, the aperture of valve of the present utility model can be adjusted when assembling easily, thereby has reduced machining accuracy, and has improved the conformity of flow between valve and the valve.Therefore the utlity model has simple in structure, reliability is higher, manufacture cost is lower, long service life, not fragile, be easy to the flow adjustment and can supply with the advantage of big flow combustion gas.
Accompanying drawing 1 is a structural representation of the present utility model.
Embodiment of the present utility model: adopt the suction type electromagnet to control the tapering valve of injection valve; During making, in valve body (1), produce left hole (14) and right hole (17) earlier, in the right hole (17) of valve body (1), be pressed into guide bush (3) and valve seat (2) then successively, one end of armature pipe (13) is enclosed within pole shoe (12) to be gone up and by roll extrusion itself and pole shoe (12) is connected as one, in armature (6) and pole shoe (12), load onto stop pin (7) and (8) that are used to prevent shock proof high hardness respectively, and fix a tapering valve (4) at the front end of armature (6), in the left hole (14) of valve body (1), be pressed into then and pole shoe (12) roll extrusion armature pipe (13) together, in armature pipe (13) and valve body (1), load onto an armature (6) that has tapering valve (4), and make armature (6) can be in armature pipe (13) movable, a cover spring (5) on the cylindrical of the right half part of armature (6), the left side of spring (5) is leaned on valve body (1), its the right leans on the boss (15) of armature (6), coil (9) is enclosed within on the armature pipe (13), and is fastened on pole shoe (12) by screw (11) and cushion (10) and goes up.
When using injection valve of the present utility model, can be installed in it with gaseous fuels such as rock gas or liquefied petroleum gas (LPG) be on the motor of fuel, or to be installed in it with fuel oil and combustion gas be on the duel fuel engine of fuel, and can adopt existing ECU electronic control technology to control this injection valve, when injection valve of the present utility model is worked, the combustion gas of certain pressure is input in the hole (17) by combustion gas input hole (16), when coil (9) dead electricity, armature (6) is being shifted tapering valve (4) on the valve seat (2) onto under the effect of spring (5) and gaseous-pressure, seal combustion gas discharge port (18), make combustion gas can't pass through combustion gas discharge port (18), when coil (9) is switched on, till the electromagnetic attraction that pole shoe (12) produces between armature (6) makes armature (6) overcome the spring force and the gaseous-pressure of spring (5) and drives stop pin (8) that stop pin (7) that tapering valve (4) moves to armature (6) left leans pole shoe (12) and go up, at this moment, passage between input hole (16) and the combustion gas discharge port (18) is opened, and combustion gas is injected in the motor by combustion gas discharge port (18).
Circulation area by injection valve is by the decision of the aperture between tapering valve (4) and the valve seat (2), can adjust gas flow by valve by the mounting point that changes valve seat (2).
The energising moment and the energising endurance of control coil (9), promptly may command sprays into the in-engine fuel gas injection moment and emitted dose by injection valve.
Claims (2)
1, a kind of electrically controlled fuel jetting valve for gas fuel engine, it comprises valve body (1), it is characterized in that: in valve body (1), be provided with left hole (14) and right hole (17), valve seat (2) and guide bush (3) are housed in the right hole (17) of valve body (1), pole shoe (12) and armature pipe (13) are housed in the left hole (14) of valve body (1), one end of armature pipe (13) is fixed on the pole shoe (12), an armature (6) that has tapering valve (4) is housed in armature pipe (13) and valve body (1), on the cylindrical of the right half part of armature (6), be with a spring (5), the left side of spring (5) leans on valve body (1), the right leans on the boss (15) of armature (6), electromagnetic attraction coil (9) is enclosed within on the armature pipe (13), and is fastened on the pole shoe (12) by screw (11) and cushion (10).
2, electrically controlled fuel jetting valve for gas fuel engine according to claim 1 is characterized in that: be equipped with one respectively and be used to prevent shock proof high hardness stop pin (7) and (8) in armature (6) and pole shoe (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02221962 CN2527729Y (en) | 2002-03-21 | 2002-03-21 | Electric controlled fuel spray valve for gas fuel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02221962 CN2527729Y (en) | 2002-03-21 | 2002-03-21 | Electric controlled fuel spray valve for gas fuel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2527729Y true CN2527729Y (en) | 2002-12-25 |
Family
ID=33699963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02221962 Expired - Lifetime CN2527729Y (en) | 2002-03-21 | 2002-03-21 | Electric controlled fuel spray valve for gas fuel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2527729Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100462549C (en) * | 2006-10-26 | 2009-02-18 | 贵州红林机械有限公司 | Gas high precision jet valve |
-
2002
- 2002-03-21 CN CN 02221962 patent/CN2527729Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100462549C (en) * | 2006-10-26 | 2009-02-18 | 贵州红林机械有限公司 | Gas high precision jet valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20041215 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |