CN204493044U - A kind of common rail motor low pressure oil way blow-off system - Google Patents
A kind of common rail motor low pressure oil way blow-off system Download PDFInfo
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- CN204493044U CN204493044U CN201520119341.0U CN201520119341U CN204493044U CN 204493044 U CN204493044 U CN 204493044U CN 201520119341 U CN201520119341 U CN 201520119341U CN 204493044 U CN204493044 U CN 204493044U
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Abstract
Common rail motor low pressure oil way blow-off system of the present utility model, flow to along oil circuit and comprise fuel tank successively, rough filter of diesel, oil transfer pump, diesel oil fine cleaner, high pressure oil pump and oil return module, electric oil pump is provided with between described fuel tank and rough filter of diesel, electric oil pump makes the pressure modulating opening of diesel oil fine cleaner open, but the Decompression valves of high pressure oil pump can be opened, the air in low pressure oil way is made to be taken in fuel tank by the circulation of diesel oil, solve common rail engine vehicle and park the rear problem that cannot start caused because of low pressure oil way air inlet for a long time, the problem of vehicle maintenance rear oil duct manual pump oil difficulty can be solved simultaneously, the labor intensity of operator can be greatly reduced, and avoid fuel oil and splash the potential safety hazard that operator bring with it, native system can also shorten Starter starting time, extends Starter working life.
Description
Technical field
The utility model relates to a kind of common rail motor low pressure oil way blow-off system, belongs to car load oil-fired system technical field.
Background technique
Current co-rail diesel engine vehicle may cause low pressure oil way air inlet and cause motor to start after parking for a long time.So just need people for pump oil of getting off, because motor and the structural limitations of vehicle own, general hand oil pump position is all below operator cabin.Operate like this and require great effort very much, and need in manual pump oil process, to open bleeder screw exit, fuel oil often can splash with it operator under pressure, brings potential safety hazard.
Model utility content
The utility model, in order to overcome the deficiency of above technology, provides a kind of common rail motor low pressure oil way blow-off system, can solve the problem that rear low pressure oil way air inlet parked for a long time by vehicle, solves the problem of vehicle maintenance rear oil duct manual pump oil difficulty simultaneously.
the utility model overcomes the technological scheme that its technical problem adopts:
A kind of common rail motor low pressure oil way blow-off system, comprises fuel tank, rough filter of diesel, oil transfer pump, diesel oil fine cleaner, high pressure oil pump and oil return module; The filler opening of described rough filter of diesel is connected with fuel tank, oil outlet is connected with the filler opening of oil transfer pump, the oil outlet of oil transfer pump is connected with the filler opening of diesel oil fine cleaner, the oil outlet of diesel oil fine cleaner is connected with the filler opening of high pressure oil pump, high pressure oil pump is connected with oil return module by the Decompression valves be arranged on the pump housing, the pressure modulating opening of diesel oil fine cleaner is connected with oil return module, and oil return module is connected with fuel tank; Its specialization is: be provided with electric oil pump between described fuel tank and rough filter of diesel, and one end ground connection of described electric oil pump, the other end are connected to the positive pole of storage battery by electric oil pump switch, the minus earth of described storage battery.
Preferred according to the utility model, described electric oil pump is malleation electric oil pump.
Enough pressure is had to open the Decompression valves of low pressure oil way in order to make electric oil pump, but pressure is not too large again thus avoid causing inner member to damage, so select the working pressure of electric oil pump be greater than the cracking pressure of Decompression valves and be less than the cracking pressure of the pressure modulating opening of diesel oil fine cleaner, PB is carried out to whole low pressure oil way.
the beneficial effects of the utility model are:
1, blow-off system of the present utility model, common rail engine vehicle can be solved and park the rear problem that cannot start caused because of low pressure oil way air inlet for a long time, solve the problem of vehicle maintenance rear oil duct manual pump oil difficulty simultaneously, the labor intensity of operator can be greatly reduced, and avoid fuel oil and splash the potential safety hazard that operator bring with it.
2, blow-off system of the present utility model, can shorten Starter starting time, extends Starter working life.
Accompanying drawing explanation
Fig. 1 is the utility model common rail motor low pressure oil way blow-off system structural representation.
In figure, 1, fuel tank, 2, electric oil pump switch, 3, storage battery, 4, electric oil pump, 5, rough filter of diesel, 6, oil transfer pump, 7, diesel oil fine cleaner, 8, oil return module, 9, high pressure oil pump, 10, Decompression valves.
Embodiment
Better understand the utility model for the ease of those skilled in the art, be described in further details below in conjunction with the drawings and specific embodiments to the utility model, following is only exemplary do not limit protection domain of the present utility model.
As shown in Figure 1, common rail motor low pressure oil way blow-off system of the present utility model, comprises oil circuit part and circuit part.
Oil circuit part comprises: fuel tank 1, rough filter of diesel 5, oil transfer pump 6, diesel oil fine cleaner 7, high pressure oil pump 9 and oil return module 8; The filler opening of described rough filter of diesel 5 is connected with fuel tank 1, oil outlet is connected with the filler opening of oil transfer pump 6, the oil outlet of oil transfer pump 6 is connected with the filler opening of diesel oil fine cleaner 7, the oil outlet of diesel oil fine cleaner 7 is connected with the filler opening of high pressure oil pump 9, high pressure oil pump 9 is connected with oil return module 8 by the Decompression valves 10 be arranged on the pump housing, the pressure modulating opening of diesel oil fine cleaner 7 is connected with oil return module 8, and oil return module 8 is connected with fuel tank 1;
Circuit part comprises: be arranged at the malleation electric oil pump 4 between fuel tank 1 and rough filter of diesel 5, the working pressure of described electric oil pump 4 is greater than the cracking pressure of Decompression valves 10 and is less than the cracking pressure of the pressure modulating opening of diesel oil fine cleaner 7, one end ground connection of described electric oil pump 4, the other end are connected to the positive pole of storage battery 3 by electric oil pump switch 2, the minus earth of described storage battery 3.
The working principle of the low pressure oil way blow-off system of the present embodiment:
When in low pressure oil way system during air inlet, open electric oil pump switch 2, electric oil pump 4 is started working.The cracking pressure of the pressure modulating opening of setting diesel oil fine cleaner 7 is 5bar, Decompression valves 10 cracking pressure of high pressure oil pump 9 is 2.5bar, electric oil pump 4 working pressure is selected to be 4.5bar, when electric oil pump 4 works, in whole low pressure oil way, pressure can reach 4.5bar, now the pressure modulating opening of diesel oil fine cleaner 7 cannot be opened, but the Decompression valves 10 of high pressure oil pump 9 can be opened at this pressure.Now in low pressure oil way system, the flow direction of diesel oil is: fuel tank 1 → electric oil pump 4 → rough filter of diesel 5 → oil transfer pump 6 → diesel oil fine cleaner 7 → high pressure oil pump 9 → pressure regulator valve 10 → oil return module 8 → fuel tank 1.This circulation covers whole low pressure oil way, and under the effect of electric oil pump 4, the air in low pressure oil way is taken in fuel tank 1 by the circulation of diesel oil, thus is embodied as the object of low pressure oil way exhaust.
Above only describes basic principle of the present utility model and preferred implementation, those skilled in the art can make many changes and improvements according to foregoing description, and these changes and improvements should belong to protection domain of the present utility model.
Claims (3)
1. a common rail motor low pressure oil way blow-off system, comprises fuel tank (1), rough filter of diesel (5), oil transfer pump (6), diesel oil fine cleaner (7), high pressure oil pump (9) and oil return module (8); The filler opening of described rough filter of diesel (5) is connected with fuel tank (1), oil outlet is connected with the filler opening of oil transfer pump (6), the oil outlet of oil transfer pump (6) is connected with the filler opening of diesel oil fine cleaner (7), the oil outlet of diesel oil fine cleaner (7) is connected with the filler opening of high pressure oil pump (9), high pressure oil pump (9) is connected with oil return module (8) by the Decompression valves (10) be arranged on the pump housing, the pressure modulating opening of diesel oil fine cleaner (7) is connected with oil return module (8), and oil return module (8) is connected with fuel tank (1); It is characterized in that: between described fuel tank (1) and rough filter of diesel (5), be provided with electric oil pump (4), one end ground connection of described electric oil pump (4), the other end are connected to the positive pole of storage battery (3) by electric oil pump switch (2), the minus earth of described storage battery (3).
2. common rail motor low pressure oil way blow-off system according to claim 1, is characterized in that: described electric oil pump (4) is malleation electric oil pump.
3. common rail motor low pressure oil way blow-off system according to claim 1 and 2, is characterized in that: the working pressure of described electric oil pump (4) is greater than the cracking pressure of Decompression valves (10) and is less than the cracking pressure of the pressure modulating opening of diesel oil fine cleaner (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520119341.0U CN204493044U (en) | 2015-02-28 | 2015-02-28 | A kind of common rail motor low pressure oil way blow-off system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520119341.0U CN204493044U (en) | 2015-02-28 | 2015-02-28 | A kind of common rail motor low pressure oil way blow-off system |
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| CN204493044U true CN204493044U (en) | 2015-07-22 |
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| CN201520119341.0U Active CN204493044U (en) | 2015-02-28 | 2015-02-28 | A kind of common rail motor low pressure oil way blow-off system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578159A (en) * | 2018-11-27 | 2019-04-05 | 潍柴动力股份有限公司 | A kind of large-diameter electric-control motor establishes the method and device of rail pressure |
| CN111520239A (en) * | 2020-03-31 | 2020-08-11 | 潍柴动力股份有限公司 | Control method and control device for low-pressure oil way of engine and low-pressure oil way system |
| CN111648888A (en) * | 2020-06-09 | 2020-09-11 | 无锡动力工程股份有限公司 | Low-pressure oil way control system of diesel engine |
-
2015
- 2015-02-28 CN CN201520119341.0U patent/CN204493044U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578159A (en) * | 2018-11-27 | 2019-04-05 | 潍柴动力股份有限公司 | A kind of large-diameter electric-control motor establishes the method and device of rail pressure |
| CN111520239A (en) * | 2020-03-31 | 2020-08-11 | 潍柴动力股份有限公司 | Control method and control device for low-pressure oil way of engine and low-pressure oil way system |
| CN111648888A (en) * | 2020-06-09 | 2020-09-11 | 无锡动力工程股份有限公司 | Low-pressure oil way control system of diesel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230414 Address after: No. 583, Jiyan Road, Huaiyin District, Jinan City, Shandong Province, 250000 Patentee after: China National Heavy Duty Truck Group Ji'nan Special Vehicle Co.,Ltd. Address before: 250002, hero mountain road, Shizhong District, Shandong, Ji'nan 165 Patentee before: China National Heavy Duty Truck Group Jinan Power Co.,Ltd. |