CN203308626U - Fuel oil supply system of two-cylinder diesel engine - Google Patents
Fuel oil supply system of two-cylinder diesel engine Download PDFInfo
- Publication number
- CN203308626U CN203308626U CN2013203096685U CN201320309668U CN203308626U CN 203308626 U CN203308626 U CN 203308626U CN 2013203096685 U CN2013203096685 U CN 2013203096685U CN 201320309668 U CN201320309668 U CN 201320309668U CN 203308626 U CN203308626 U CN 203308626U
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- oil
- diesel
- fuel
- supply system
- pump
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Abstract
The utility model relates to a fuel oil supply system of a two-cylinder diesel engine. The system comprises a fuel oil tank, an oil delivery pump, a diesel filter, an oil spraying pump and two oil sprayers, wherein an oil outlet of the oil spraying pump is respectively communicated with the two oil sprayers through a high-pressure oil pipe, and an overflow valve is connected in parallel between an oil inlet of the oil spraying pump and an oil return opening of the fuel oil tank. The fuel oil supply system is characterized in that one side of the fuel oil tank is connected with an oil inlet of the diesel filter through an oil outlet pipe, an oil outlet of the diesel filter is connected with an oil inlet of the oil delivery pump, and an oil outlet of the oil delivery pump is communicated with the oil inlet of the oil spraying pump through an oil pipe. Through the improvement, the fuel oil supply system has the advantages that fuel oil firstly passes through the diesel filter and is then input into the oil delivery pump, the clean diesel cannot influence the sealing of the oil delivery pump, the possibility that air enters a low-pressure oil path is eliminated, the failure rate of the diesel engine is effectively reduced, and the service life of the oil delivery pump is prolonged.
Description
Technical field
The utility model belongs to the fuel oil supply system technical field of diesel engine, is specifically related to the fuel oil supply system of two-cylinder diesel.
Background technique
The effect of the fuel oil supply system of diesel engine is the requirement according to work cycle and firing order, regularly, quantitatively, level pressure diesel oil is sprayed into to cylinder combustion, make diesel engine work outputting power.The oil circuit of fuel oil supply system comprises low pressure oil way and high-pressure oil passage, and high-pressure oil passage refers to the oil circuit of Injection Pump to oil sprayer, and its general route is Injection Pump → high-pressure oil pipe → oil sprayer.
Low pressure oil way refers to the fuel oil supply system before Injection Pump, and its general route is fuel oil → oil transfer pump → diesel-oil filter → Injection Pump.In the working procedure of diesel engine, diesel oil arrives first oil transfer pump, then to diesel-oil filter, then to Injection Pump.Not after the diesel oil filtered enters from oil transfer pump, tiny particle is assembled at the oil transfer pump place, affects the sealing of oil transfer pump, and air is entered in low pressure oil way, will cause diesel engine galloping, even stops.Uncleanly diesel oil enters firing chamber also affects burning, causes the faults such as underpower, starting difficulty.
Summary of the invention
In order to improve the turbidity test that enter oil transfer pump diesel oil, guarantee the sealing at oil transfer pump place and the burning of diesel oil, the utility model provides a kind of fuel oil supply system that improves the two-cylinder diesel of structure.
Improved technical solution is as follows:
The fuel oil supply system of two-cylinder diesel comprises fuel tank, oil transfer pump, diesel-oil filter, Injection Pump and two oil sprayers, wherein outlet port is being communicated with respectively two oil sprayers by high-pressure oil pipe, relief valve in parallel between the return opening of the filler opening of Injection Pump and fuel tank, improvement is: a side of described fuel tank is being communicated with the filler opening of diesel-oil filter by oil outlet tube, the oil outlet of diesel-oil filter is being communicated with the filler opening of oil transfer pump, and the oil outlet of oil transfer pump is being communicated with the filler opening of Injection Pump by oil pipe.
The fuel inlet fitting of connecting between the oil outlet tube of fuel tank and the filler opening of diesel-oil filter, described fuel inlet fitting is the bamboo joint type joint with filter screen.
The utility model is by the improvement of the low pressure oil way to the two-cylinder diesel fuel oil supply system, make fuel oil first after diesel-oil filter, enter again oil transfer pump, clean diesel oil can not affect the sealing of oil transfer pump, deaeration enters the possibility of low pressure oil way, effectively reduce the rate of fault of diesel engine, the working life of improving oil transfer pump.
The accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model fundamental diagram.
Sequence number in upper figure: diesel-oil filter 1, fuel inlet fitting 2, the first oil-feed sebific duct 3, oil transfer pump 4, the second oil-feed sebific duct 5, Injection Pump 6, relief valve 8, high-pressure oil pipe 9, oil sprayer 10, fuel tank 11.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Embodiment
Referring to Fig. 1, the fuel oil supply system of two-cylinder diesel comprises fuel tank 11, oil transfer pump 4, diesel-oil filter 1, Injection Pump 6 and two oil sprayers 10, wherein the oil outlet of Injection Pump 6 is being communicated with respectively two oil sprayers 10 by high-pressure oil pipe 9, relief valve 8 in parallel between the return opening of the filler opening of Injection Pump 6 and fuel tank 11, improvement is: a side of fuel tank 11 is being communicated with the filler opening of diesel-oil filter 1 by oil outlet tube and fuel inlet fitting 2, and fuel inlet fitting 2 is the bamboo joint type joint with filter screen.The oil outlet of diesel-oil filter 1 is being communicated with the filler opening of oil transfer pump 4 by the first oil-feed sebific duct 3, the oil outlet of oil transfer pump 4 is being communicated with the filler opening of Injection Pump 6 by the second oil-feed sebific duct 5.
Claims (2)
1. the fuel oil supply system of two-cylinder diesel, comprise fuel tank, oil transfer pump, diesel-oil filter, Injection Pump and two oil sprayers, wherein outlet port is being communicated with respectively two oil sprayers by high-pressure oil pipe, relief valve in parallel between the return opening of the filler opening of Injection Pump and fuel tank, it is characterized in that: a side of described fuel tank is being communicated with the filler opening of diesel-oil filter by oil outlet tube, the oil outlet of diesel-oil filter is being communicated with the filler opening of oil transfer pump, and the oil outlet of oil transfer pump is being communicated with the filler opening of Injection Pump by oil pipe.
2. the fuel oil supply system of two-cylinder diesel according to claim 1, it is characterized in that: the fuel inlet fitting of connecting between the oil outlet tube of fuel tank and the filler opening of diesel-oil filter, described fuel inlet fitting are the bamboo joint type joint with filter screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203096685U CN203308626U (en) | 2013-05-31 | 2013-05-31 | Fuel oil supply system of two-cylinder diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203096685U CN203308626U (en) | 2013-05-31 | 2013-05-31 | Fuel oil supply system of two-cylinder diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203308626U true CN203308626U (en) | 2013-11-27 |
Family
ID=49614840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203096685U Expired - Fee Related CN203308626U (en) | 2013-05-31 | 2013-05-31 | Fuel oil supply system of two-cylinder diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203308626U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240174A (en) * | 2015-07-06 | 2016-01-13 | 谭大钊 | Diesel engine oil supply system |
-
2013
- 2013-05-31 CN CN2013203096685U patent/CN203308626U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240174A (en) * | 2015-07-06 | 2016-01-13 | 谭大钊 | Diesel engine oil supply system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20190531 |