CN203717206U - Oil pumping mechanism for common rail engine - Google Patents
Oil pumping mechanism for common rail engine Download PDFInfo
- Publication number
- CN203717206U CN203717206U CN201320872755.1U CN201320872755U CN203717206U CN 203717206 U CN203717206 U CN 203717206U CN 201320872755 U CN201320872755 U CN 201320872755U CN 203717206 U CN203717206 U CN 203717206U
- Authority
- CN
- China
- Prior art keywords
- oil
- high pressure
- contiguous block
- communicated
- oil pocket
- 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
Links
- 238000005086 pumping Methods 0.000 title abstract 4
- 239000000446 fuel Substances 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 13
- 230000006698 induction Effects 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 112
- 239000000295 fuel oil Substances 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model relates to an oil pumping mechanism for a common rail engine. The oil pumping mechanism comprises two high-pressure oil pumps; oil outlets of the two high-pressure oil pumps are respectively led to a connecting block through two high-pressure oil inlet pipes; a common oil chamber communicated with the two high-pressure oil inlet pipes is formed in the connecting block and two high-pressure oil outlet pipes are led out of the common oil chamber; the high-pressure oil outlet pipes are communicated with the common oil chamber through high-pressure fuel oil ducts; a low-pressure oil chamber is formed in the connecting block; the connecting block is connected with a pressure relief pipeline for communicating the common oil chamber with the low-pressure oil chamber; the pressure relief pipeline is provided with a safety valve; a sensible sensor is arranged on the connecting block and is connected with a safety alarm. The oil pumping mechanism can ensure continuous supply of fuel oil, and the safety and the reliability of fuel oil supply are improved.
Description
Technical field
The utility model relates to common rail engine art, specifically a kind of rail engine pump oil machine structure altogether.
Background technique
For marine diesel engine, require related components in the time there is failure accidents, diesel engine should still can be worked under sub load, thereby ensures the safety of whole ship.Design of High Pressure Common Rail Diesel Engine is owing to being difficult to realize with tyre motor-drive pump the function that high pressure fuel is provided; can only carry out pump fuel oil with machine band high voltage common rail pump; high voltage common rail pump inefficacy can directly cause motor to be shut down because losing fuel delivery, can not meet the requirement of marine diesel engine.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of rail engine pump oil machine structure altogether, and this pump oil machine structure can ensure the sustainable supply of fuel oil and improve the safety and reliability of fuel delivery.
For solving the problems of the technologies described above, rail engine pump oil machine structure altogether of the present utility model comprises two high pressure oil pumps, its structural feature is that the oil outlet of described two high pressure oil pumps causes on a contiguous block by two high pressure oil inlet pipes respectively, contiguous block inside offers on the public oil pocket that is communicated with two high pressure oil inlet pipes and this public oil pocket and leads to two high pressure oil outlet tubes, between high pressure oil outlet tube and public oil pocket by high pressure fuel hole link; In described contiguous block, also offer low pressure oil pocket, on contiguous block, be connected with on pressure relief pipe for being communicated with public oil pocket and low pressure oil pocket and this pressure relief pipe safety valve is installed, the induction installation that can respond to impact force in low pressure oil pocket is installed on contiguous block, on above-mentioned induction installation, is connected with safety alarm.
Adopt said structure, utilize the high pressure fuel of two high pressure oil pumps is gathered to public oil pocket, and then distribute to two row's cylinders, even if ensure to only have a high pressure oil pump job also can ensure that motor still can not shut down work, improve the safety and reliability of motor; By mounting safety valve, in the time of high-pressure oil passage overpressure, can open in time safety valve and carry out pressure release, and safety alarm is set can reports to the police, facilitate staff to take measures.
Described induction installation is pressure transducer.
Described induction installation is temperature transducer.
Described high pressure oil inlet pipe and high pressure oil outlet tube are double layer oil pipe, double layer oil pipe formed by inside and outside two-layer pipe and two-layer pipe between form perimetrical lumen, in contiguous block, offering leakage oil pocket and this leakage oil pocket is all communicated with the perimetrical lumen of above-mentioned each double layer oil pipe, on contiguous block, be provided with and can detect the liquid level sensor that leaks oil pocket liquid level, on liquid level sensor, be connected with leakage alarm.Double layer oil pipe is set and reveals oil pocket, in the time of the inner tube generation explosion leakage of oil of double layer oil pipe, the liquid level sensor of revealing in oil pocket sends warning trigger signal to leakage alarm, notifies staff to adopt measure.
Between described double layer oil pipe and contiguous block, overlap and be connected by plug-in mounting, plug-in mounting cover be inlaid on contiguous block and and contiguous block between form a spatia being communicated with plug-in mounting cover inner chamber, the inner tube of double layer oil pipe is passed plug-in mounting and is overlapped and be communicated to high pressure fuel duct; The perimetrical lumen of double layer oil pipe is communicated with plug-in mounting cover inner chamber, and each spatia is communicated with leakage oil pocket by leakage of oil pipeline.
In described contiguous block, offer and leak the oil pocket that collects that oil pocket and low pressure oil pocket be all communicated with, on contiguous block, offering and the return opening that collects oil pocket and be communicated with.Setting collects oil pocket and collects leakage and fuel oil pressure release, by return opening, fuel oil is recovered in fuel tank, avoids waste.
On described contiguous block, offer that high pressure oil is installed on the high pressure hydraulic fluid port that is communicated with public oil pocket and this high pressure hydraulic fluid port is stifled.
In sum, pump oil machine structure of the present utility model gathers the high pressure fuel of two high pressure oil pumps, and fuel pressure is monitored, after throttling, reallocation is to common rail pipe, thereby ensure the sustainable supply of fuel oil, improve the reliability of rail motor altogether, simultaneously, pressure release that the utility model is also integrated is reported to the police and is revealed warning function, has increased the safety in utilization of common rail motor.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is perspective view of the present utility model;
Fig. 2 is plan structure schematic diagram of the present utility model;
Fig. 3 is right TV structure schematic diagram of the present utility model;
Fig. 4 is the sectional structure schematic diagram along A-A direction in Fig. 2;
Fig. 5 is the structure enlarged view in broken circle in Fig. 4.
Embodiment
With reference to accompanying drawing, rail engine pump oil machine structure altogether of the present utility model comprises two high pressure oil pumps 1, the oil outlet of two high pressure oil pumps 1 causes on a contiguous block 3 by two high pressure oil inlet pipes 2 respectively, contiguous block 3 inside offer on the public oil pocket 4 that is communicated with two high pressure oil inlet pipes 2 and this public oil pocket 4 and lead to two high pressure oil outlet tubes 5, between high pressure oil outlet tube 5 and public oil pocket 4, are communicated with by high pressure fuel duct 6.In contiguous block 3, also offer low pressure oil pocket 7, on contiguous block 3, be connected with on pressure relief pipe 8 for being communicated with public oil pocket 4 and low pressure oil pocket 7 and this pressure relief pipe 8 safety valve 9 is installed, the induction installation 10 that can respond to low pressure oil pocket 7 interior impact forces is installed on contiguous block 3, on above-mentioned induction installation, is connected with safety alarm 11.Wherein, induction installation is for responding to the impact force in low pressure oil pocket, by sensing whether open, in the time that safety valve is opened, illustrate that oil circuit oil pressure is excessive if whether having impact force to respond to safety valve, now send a signal to safety alarm.Induction installation 10 can adopts pressure sensor or can be responded to the temperature transducer of fluid impact.
In said structure, utilize the high pressure fuel of two high pressure oil pumps is gathered to public oil pocket, and then distribute to two row's cylinders, even if ensure to only have a high pressure oil pump job also can ensure that motor still can not shut down work, improve the safety and reliability of motor; By mounting safety valve, in the time of oil circuit overpressure, can open in time safety valve and carry out pressure release, ensure whole oil-fired system safety, and safety alarm is set can reports to the police, facilitate staff to take measures.
With reference to accompanying drawing, high pressure oil inlet pipe 2 and high pressure oil outlet tube 5 are double layer oil pipe, double layer oil pipe formed by inside and outside two-layer pipe and two-layer pipe between form perimetrical lumen 12, in contiguous block 3, offering leakage oil pocket 13 and this leakage oil pocket 13 is all communicated with the perimetrical lumen 12 of above-mentioned each double layer oil pipe, on contiguous block 3, be provided with and can detect the liquid level sensor 14 that leaks oil pocket 13 liquid levels, on liquid level sensor 14, be connected with leakage alarm 20.In the time of the inner tube generation explosion leakage of oil of double layer oil pipe, the liquid level sensor 14 of revealing in oil pocket 13 sends warning trigger signal to leakage alarm 20, notifies staff to adopt measure.
With reference to accompanying drawing, for the installation of double layer oil pipe, between double layer oil pipe and contiguous block 3, overlapping 17 by plug-in mounting is connected, plug-in mounting cover 17 be inlaid on contiguous block 3 and and contiguous block 3 between form one and overlap with plug-in mounting the spatia 18 that 17 inner chambers are communicated with, the inner tube of double layer oil pipe is passed plug-in mounting and is overlapped 17 and be communicated to high pressure fuel duct 6; Perimetrical lumen 12 and the plug-in mounting of double layer oil pipe overlaps 17 inner chambers and is communicated with, and each spatia 18 is communicated with leakage oil pocket 13 by leakage of oil pipeline 19.
With reference to accompanying drawing, in contiguous block 3, offer with leak that oil pocket 13 and low pressure oil pocket 7 be all communicated with collect oil pocket 15, on contiguous block 3, offer and the return opening 16 that collects oil pocket 15 and be communicated with.Setting collects oil pocket 15 and collects leakage and fuel oil pressure release, by return opening 16, fuel oil is recovered in fuel tank.
With reference to accompanying drawing, on contiguous block 3, offer high pressure oil stifled 21 is installed on the high pressure hydraulic fluid port that is communicated with public oil pocket 4 and this high pressure hydraulic fluid port.
In sum, the utility model is not limited to above-mentioned embodiment.Those skilled in the art, not departing under the prerequisite of spirit and scope of the present utility model, can do some changes and modification.Protection domain of the present utility model should be as the criterion with claim of the present utility model.
Claims (7)
1. one kind is total to rail engine pump oil machine structure, comprise two high pressure oil pumps (1), the oil outlet that it is characterized in that described two high pressure oil pumps (1) causes on a contiguous block (3) by two high pressure oil inlet pipes (2) respectively, contiguous block (3) inside offers on the public oil pocket (4) that is communicated with two high pressure oil inlet pipes (2) and this public oil pocket (4) and leads to two high pressure oil outlet tubes (5), between high pressure oil outlet tube (5) and public oil pocket (4), is communicated with by high pressure fuel duct (6); In described contiguous block (3), also offer low pressure oil pocket (7), on contiguous block (3), be connected with on pressure relief pipe (8) for being communicated with public oil pocket (4) and low pressure oil pocket (7) and this pressure relief pipe (8) safety valve (9) is installed, the induction installation (10) that can respond to the interior impact force of low pressure oil pocket (7) is installed on contiguous block (3), on above-mentioned induction installation, is connected with safety alarm (11).
2. rail engine pump oil machine structure altogether as claimed in claim 1, is characterized in that described induction installation (10) is pressure transducer.
3. rail engine pump oil machine structure altogether as claimed in claim 1, is characterized in that described induction installation (10) is temperature transducer.
4. rail engine pump oil machine structure altogether as claimed in claim 1, it is characterized in that described high pressure oil inlet pipe (2) and high pressure oil outlet tube (5) are double layer oil pipe, double layer oil pipe is by interior, between outer two-layer pipe formation and two-layer pipe, form perimetrical lumen (12), in contiguous block (3), offering leakage oil pocket (13) and this leakage oil pocket (13) is all communicated with the perimetrical lumen (12) of above-mentioned each double layer oil pipe, on contiguous block (3), be provided with and can detect the liquid level sensor (14) that leaks oil pocket (13) liquid level, on liquid level sensor (14), be connected with leakage alarm (20).
5. rail engine pump oil machine structure altogether as claimed in claim 4, it is characterized in that being connected by plug-in mounting cover (17) between described double layer oil pipe and contiguous block (3), plug-in mounting cover (17) be inlaid in contiguous block (3) upper and and contiguous block (3) between form a spatia (18) being communicated with plug-in mounting cover (17) inner chamber, the inner tube of double layer oil pipe is passed plug-in mounting cover (17) and is communicated to high pressure fuel duct (6); The perimetrical lumen (12) of double layer oil pipe is communicated with plug-in mounting cover (17) inner chamber, and each spatia (18) is communicated with leakage oil pocket (13) by leakage of oil pipeline (19).
6. rail engine pump oil machine structure altogether as claimed in claim 4, it is characterized in that offering in described contiguous block (3) with leak that oil pocket (13) and low pressure oil pocket (7) be all communicated with collect oil pocket (15), on contiguous block (3), offer and the return opening (16) that collects oil pocket (15) and be communicated with.
7. the common rail engine pump oil machine structure as described in any one in claim 1 to 6, is characterized in that offering on described contiguous block (3) on the high pressure hydraulic fluid port that is communicated with public oil pocket (4) and this high pressure hydraulic fluid port high pressure oil stifled (21) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320872755.1U CN203717206U (en) | 2013-12-28 | 2013-12-28 | Oil pumping mechanism for common rail engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320872755.1U CN203717206U (en) | 2013-12-28 | 2013-12-28 | Oil pumping mechanism for common rail engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203717206U true CN203717206U (en) | 2014-07-16 |
Family
ID=51156368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320872755.1U Expired - Lifetime CN203717206U (en) | 2013-12-28 | 2013-12-28 | Oil pumping mechanism for common rail engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203717206U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927440A (en) * | 2016-05-26 | 2016-09-07 | 潍柴动力股份有限公司 | Diesel engine and high pressure common rail fuel injection system thereof |
| CN108869034A (en) * | 2018-09-05 | 2018-11-23 | 常熟瑞特电气股份有限公司 | A kind of prior-warning device for diesel engine fuel oil leakage flow |
| CN109026387A (en) * | 2018-09-05 | 2018-12-18 | 常熟瑞特电气股份有限公司 | A kind of fuel leakage early warning system of diesel engine delivery valve |
| CN112065624A (en) * | 2020-09-10 | 2020-12-11 | 潍柴动力股份有限公司 | High-pressure oil pump mounting method, engine and vehicle |
| CN112360657A (en) * | 2020-11-16 | 2021-02-12 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Distribution block for high-pressure common rail system and control method thereof |
-
2013
- 2013-12-28 CN CN201320872755.1U patent/CN203717206U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927440A (en) * | 2016-05-26 | 2016-09-07 | 潍柴动力股份有限公司 | Diesel engine and high pressure common rail fuel injection system thereof |
| CN108869034A (en) * | 2018-09-05 | 2018-11-23 | 常熟瑞特电气股份有限公司 | A kind of prior-warning device for diesel engine fuel oil leakage flow |
| CN109026387A (en) * | 2018-09-05 | 2018-12-18 | 常熟瑞特电气股份有限公司 | A kind of fuel leakage early warning system of diesel engine delivery valve |
| CN108869034B (en) * | 2018-09-05 | 2023-09-01 | 常熟市国瑞科技股份有限公司 | Early warning device for fuel leakage flow of diesel engine |
| CN112065624A (en) * | 2020-09-10 | 2020-12-11 | 潍柴动力股份有限公司 | High-pressure oil pump mounting method, engine and vehicle |
| CN112065624B (en) * | 2020-09-10 | 2021-10-08 | 潍柴动力股份有限公司 | High-pressure oil pump mounting method, engine and vehicle |
| CN112360657A (en) * | 2020-11-16 | 2021-02-12 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Distribution block for high-pressure common rail system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |