CN2679382Y - Oil circuit assembly of diesel engine - Google Patents
Oil circuit assembly of diesel engine Download PDFInfo
- Publication number
- CN2679382Y CN2679382Y CN 200420024958 CN200420024958U CN2679382Y CN 2679382 Y CN2679382 Y CN 2679382Y CN 200420024958 CN200420024958 CN 200420024958 CN 200420024958 U CN200420024958 U CN 200420024958U CN 2679382 Y CN2679382 Y CN 2679382Y
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- CN
- China
- Prior art keywords
- oil
- pump
- outlet
- circuit assembly
- import
- 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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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model provides an oil circuit assembly of a diesel engine, which is mainly composed of an oil tank, a clarifier, a high-pressure oil pump and an oil transfer pump, wherein, an oil outlet on the lower part of the oil tank is connected with an inlet of the oil transfer pump through an oil pipe, an outlet of the oil transfer pump is connected with an inlet of the clarifier through an oil pipe, and an outlet of the clarifier is connected with an inlet of the high-pressure oil pump through an oil pipe. The upper end of the clarifier is provided with an oil return valve, an inlet of the oil return valve is communicated with the inlet of the clarifier, and an outlet of the oil return valve is communicated with the oil tank through an oil return pipe. Owing to the oil transfer pump additional arranged in the existing oil circuit assembly, the utility model ensures the normal oil supply of an oil circuit and assures that a diesel engine runs normally without being influenced by factors such as outside air pressure, etc. The utility model also adopts the original assembly structure, having the advantage of favorable replaceability and universality.
Description
Technical field
The utility model relates to a kind of oil channel structures of single cylinder diesel.
Background technique
Its oil circuit assembly of existing single cylinder diesel is made up of fuel tank, filter cleaner and high pressure oil pump usually, during fuel feeding, relies on the height difference between fuel tank and the high pressure oil pump and forms diesel oil pressure, and the diesel oil in the fuel tank is supplied to high pressure oil pump.Yet, because the height difference between fuel tank and high pressure oil pump is limited, there are impurity or gas to block up in the oil circuit in case run into, will cause fuel feeding not smooth, influence the output power of diesel engine, in the plateau section, because external atmospheric pressure is lower, the problem of fuel feeding deficiency often takes place particularly, it is high with it that the user often takes fuel tank apart, guarantee the normal operation of diesel engine, both wasted time and energy like this, dangerous again.
Summary of the invention
For overcoming the existing deficiency of diesel engine oil circuit assembly of prior art, the utility model provides a kind of diesel engine oil circuit assembly rational in infrastructure, convenient-to-running, to increase its functional reliability.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of single cylinder diesel, diesel oil tank place the diesel engine top, it is characterized in that, contain the oil transfer pump that oriented high pressure oil pump is carried diesel oil in the diesel oil oil circuit.
The oil circuit of described single cylinder diesel preferably constitutes like this, and the oil outlet of fuel tank bottom links to each other with the import of oil transfer pump by oil pipe, and the oil transportation delivery side of pump links to each other with the import of filter cleaner by oil pipe, and the outlet of filter cleaner links to each other with the import of high pressure oil pump by oil pipe.
For preventing that the diesel oil overpressure behind oil transfer pump from causing leakage of oil, be provided with scavenger valve in the upper end of filter cleaner, the import of scavenger valve is connected with the import of filter cleaner, and its outlet is connected with fuel tank by return tube.
Described oil transfer pump can adopt gear pump or rotor pump.
The beneficial effects of the utility model are: because the utility model has been set up oil transfer pump in existing oil circuit assembly, thereby guaranteed the normal fuel injection of oil circuit, guaranteed that diesel engine is not subjected to the influence and the normal operation of factors such as external atmospheric pressure, and adopt original assembly structure, replaceability and versatility are good.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation;
Fig. 2 is the cutaway view Amplified image of local I among Fig. 1.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
The oil supply system of single cylinder diesel of the present utility model mainly is made up of fuel tank 1, filter cleaner 3, high pressure oil pump 7 and oil transfer pump 2, the oil outlet of fuel tank 1 bottom links to each other with the import of oil transfer pump 2 by oil pipe 6-1, and the outlet of gear fuel supply pump 2 (or rotor pump) links to each other with the import of filter cleaner 3 by oil pipe 6-2.Be provided with oil sprayer return tube 4 on the top of filter cleaner 3.For preventing that the diesel oil overpressure behind oil transfer pump 2 from causing leakage of oil, inlet at filter cleaner 3 is provided with the scavenger valve that contains spring 5-1, valve plug 5-2, and this scavenger valve 5 directly places the interior top of housing of filter cleaner 3, the import of scavenger valve 5 is connected with the import of filter cleaner 3, and its outlet is connected with fuel tank 1 by return tube 6-4.The outlet of filter cleaner 3 links to each other with the import of high pressure oil pump 7 by oil pipe 6-3.
During work, after the diesel oil in the fuel tank 1 passed through oil pipe 6-1, oil transfer pump 2, the pressure diesel oil of formation entered in the filter cleaner 3, and pressure oil is transported to high pressure oil pump 7 by filter cleaner 3 through oil pipe 6-3 again.When the oil pressure in the oil circuit assembly was higher than 0.15Mpa, pressure oil overcame the spring 5-1 resistance in the scavenger valve 5, and valve plug 5-2 is opened, and part oil is in return tube 6-4 carries oil sump tank 1; And when the oil pressure in the oil circuit during less than 0.15Mpa, the elastic force of spring 5-1 make valve plug 5-2 stifled on, to guarantee that pressure in the oil circuit is at 0.1-0.15Mpa.
Claims (4)
1. the oil circuit assembly of diesel engine, diesel oil tank places the diesel engine top, it is characterized in that, contains the oil transfer pump that oriented high pressure oil pump is carried diesel oil in the diesel oil oil circuit.
2. oil circuit assembly as claimed in claim 1, it is characterized in that, the oil outlet of fuel tank bottom links to each other with the import of oil transfer pump by oil pipe, and the oil transportation delivery side of pump links to each other with the import of filter cleaner by oil pipe, and the outlet of filter cleaner links to each other with the import of high pressure oil pump by oil pipe.
3. oil circuit assembly as claimed in claim 2 is characterized in that, is provided with scavenger valve in the upper end of filter cleaner, and the import of scavenger valve is connected with the import of filter cleaner, and its outlet is connected with fuel tank by return tube.
4. as the described oil circuit assembly of one of claim 1-3, it is characterized in that described oil transfer pump is gear pump or rotor pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420024958 CN2679382Y (en) | 2004-02-26 | 2004-02-26 | Oil circuit assembly of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420024958 CN2679382Y (en) | 2004-02-26 | 2004-02-26 | Oil circuit assembly of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2679382Y true CN2679382Y (en) | 2005-02-16 |
Family
ID=34583462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420024958 Expired - Fee Related CN2679382Y (en) | 2004-02-26 | 2004-02-26 | Oil circuit assembly of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2679382Y (en) |
-
2004
- 2004-02-26 CN CN 200420024958 patent/CN2679382Y/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 | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yancheng Xingdong Machinery Co., Ltd. Assignor: Jianghuai Power Co., Ltd., Jiangsu Contract fulfillment period: 2009.2.19 to 2014.2.19 Contract record no.: 2009320000155 Denomination of utility model: Oil circuit assembly of diesel engine Granted publication date: 20050216 License type: exclusive license Record date: 20090227 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.2.19 TO 2014.2.19; CHANGE OF CONTRACT Name of requester: YANCHENG XINGDONG MACHINERY CO.,LTD. Effective date: 20090227 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050216 Termination date: 20120226 |