CN2427367Y - Fuel supply system for agriculture single cylinder diesel engine - Google Patents
Fuel supply system for agriculture single cylinder diesel engine Download PDFInfo
- Publication number
- CN2427367Y CN2427367Y CN 00202584 CN00202584U CN2427367Y CN 2427367 Y CN2427367 Y CN 2427367Y CN 00202584 CN00202584 CN 00202584 CN 00202584 U CN00202584 U CN 00202584U CN 2427367 Y CN2427367 Y CN 2427367Y
- Authority
- CN
- China
- Prior art keywords
- oil
- pressure head
- fuel
- fuel tank
- single cylinder
- 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 - Fee Related
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model relates to a fuel supply system for an agriculture single-cylinder diesel engine. An oil pipe connected with an oil tank is connected to an oil spray pump through a pressure head, an oil return pipe connected with an oil sprayer is connected to the pressure head through screws, and return oil and oil in the oil tank are met in the pressure head. A diesel oil filter is not needed between the oil tank and the oil spray pump, so the position of the height of the oil tank is lowered.
Description
The utility model relates to the fuel-feed system of no diesel fuel filter between a kind of fuel tank and the injection pump, especially can reduce the height and position of fuel tank.
At present, the fuel-feed system structure of known farm vehicle single cylinder diesel is: fuel tank is connected with diesel fuel filter on the body by oil pipe, and diesel fuel filter is connected with injection pump again; Oil return pipe on the fuel injector is connected with diesel fuel filter on the body.Because the fuel tank of a lot of farm vehicles separates with engine body, and the oil outlet of fuel tank must be higher than the oil inlet port of diesel fuel filter, fuel tank generally places between container and the operator's compartment, perhaps places below operator's compartment and the container.Because space constraint, fuel tank can only be made the growth flat, and it is many that fuel tank is made consumable material, and fuel tank capacity is little.Not only producer's manufacturing cost height, and user uses very inconvenient.
The purpose of this utility model provides a kind of farm vehicle single cylinder diesel fuel-feed system, and it can not only realize the fuel feeding and the oil return of diesel engine smoothly, and can reduce the height of fuel tank.
The purpose of this utility model is achieved in that the oil pipe that is connected with fuel tank (filtering installation of diesel oil therein) directly is connected with injection pump by pressure head, and this just can realize the fuel feeding of diesel engine; Screw, steel ball, spring, pressure head connect, the oil return pipe that is connected with fuel injector is connected with pressure head by screw, steel ball in the pressure head is pushed down the oil outlet of screw all the time by action of the spring, can not only realize the oil return of fuel injector like this, but also guarantee the one-way of fuel injector oil return.
Owing to adopting such scheme, not only simple in structure, can realize the diesel engine fuel feeding smoothly, can also reduce the height of fuel tank simultaneously, thereby increase the thickness of fuel tank, reduce the manufacturing cost of fuel tank or the volume of increase fuel tank.
Below in conjunction with drawings and Examples the utility model is further specified.
Figure of description is the section-drawing of an embodiment keystone configuration.
1. fuel tanks, 2. screws, 3. small washers, 4. oil return pipes, 5. pressure heads, 6. steel balls, 7. springs, 8. oil pipes, 9. packing rings, 10. injection pumps among the figure
In the drawings, oil pipe (8) is connected with fuel tank (1), the filtration of diesel oil can be finished by the filtering installation in the fuel tank (1), oil pipe (8) is connected with injection pump (10) by pressure head (5), diesel oil in the fuel tank enters pressure head (5) by oil pipe (8) like this, enter injection pump (10) by the oilhole on the pressure head (5) again, realize the fuel feeding of fuel-feed system.One end of oil return pipe (4) is connected with engine fuel injector, the other end is connected with pressure head (5) by screw (2), the oil outlet of screw (2) is owing to spring (7) effect is blocked by steel ball (6) all the time, the oil return of motivation fuel injector entered in the oilhole of screw (2) by oil return pipe (4), when oil return reaches certain pressure intensity, the oil return meeting is backed down steel ball and is entered in the pressure head (5), thereby joins with the oil in the oil pipe (8), and this has just solved the oil return problem of driving engine.Small washer among the figure (3) and packing ring (9) are the sealing copper washer.
Claims (2)
1. the fuel-feed system of a farm vehicle single cylinder diesel is made up of fuel tank, screw, small washer, oil return pipe, pressure head, steel ball, spring, oil pipe, packing ring, injection pump, it is characterized in that: the oil pipe that is connected with fuel tank by pressure head be connected to injection pump on; The oil return pipe that is connected with fuel injector is connected on the pressure head by screw.
2. according to the fuel-feed system of the described farm vehicle single cylinder diesel of claim 1, it is characterized in that: screw is connected with negative thread on the pressure head, and the steel ball in the pressure head is pushed down the oil outlet of screw all the time by action of the spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00202584 CN2427367Y (en) | 2000-02-02 | 2000-02-02 | Fuel supply system for agriculture single cylinder diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00202584 CN2427367Y (en) | 2000-02-02 | 2000-02-02 | Fuel supply system for agriculture single cylinder diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2427367Y true CN2427367Y (en) | 2001-04-25 |
Family
ID=33571498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00202584 Expired - Fee Related CN2427367Y (en) | 2000-02-02 | 2000-02-02 | Fuel supply system for agriculture single cylinder diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2427367Y (en) |
-
2000
- 2000-02-02 CN CN 00202584 patent/CN2427367Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |