CN205297797U - Security fuel pump assembly - Google Patents
Security fuel pump assembly Download PDFInfo
- Publication number
- CN205297797U CN205297797U CN201520903107.7U CN201520903107U CN205297797U CN 205297797 U CN205297797 U CN 205297797U CN 201520903107 U CN201520903107 U CN 201520903107U CN 205297797 U CN205297797 U CN 205297797U
- Authority
- CN
- China
- Prior art keywords
- oil
- fuel
- fuel pump
- tank
- oil return
- 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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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model discloses a security fuel pump assembly, including fuel tank, fuel pump, pressure -stabilizing box and fuel feed system, wherein fuel pump one end is equipped with oil inlet and gas vent, and the oil inlet links to each other with the fuel tank, is equipped with the oil -out on the fuel pump lateral wall, and the oil -out is connected to pressure -stabilizing box through flowline, and the pressure -stabilizing box other end links to each other with the fuel feed system, the last oil return opening that still is equipped with of pressure -stabilizing box, and the oil return opening passes through oil return pipe and is connected with the fuel tank. The utility model discloses it has following advantage to compare prior art: each device that will meet with the fuel pump will be connected with the reasonable manner, save installation space, and when guaranteeing normal work, the trouble of having avoided the fuel pump need continuously pressurize and cause establishes oil return pipe's middle part into spiral structure, the oil return pipe's that has extended length, and messenger's excess oil is lowered the temperature and is flow back in the fuel tank at the oil return in -process.
Description
Technical field
This utility model belongs to technical field of automobile, is specifically related to a kind of safety fuel oil pump assembly.
Background technology
Fuel pump is one of basic composition of electro jet car fuel injection system, at work, deliver in fuel feed pump after fuel oil sucking-off from fuel tank, pressurization, coordinate with fuel pressure regulator and set up certain fuel pressure, oil distributing pipe conveying high-pressure fuel oil thought by fuel pump, it is ensured that to the fuel oil that nozzle supply is lasting. generally, the multiple equipment being connected with fuel pump are separate, oil-out is located at above fuel pump, long-time bigger pressure is often needed to act on, once pressure instability, fuel oil supply will be caused to break down, and, fuel flow returns unnecessary in fuel oil supply system is recycled to fuel tank after pressurizer tank, owing to fuel oil comprises certain heat, therefore quick backflow can cause the potential safety hazard in fuel tank, it is thus desirable to suitably lower the temperature in reflux course, because excess oil amount is few and temperature is not high, do not need special heat sink, in suitable space, directly lengthen pipeline.
Utility model content
The purpose of this utility model is for existing issue, it is provided that a kind of safety fuel oil pump assembly.
This utility model is achieved through the following technical solutions: a kind of safety fuel oil pump assembly, including fuel tank, fuel pump, pressurizer tank and fuel oil supply system, wherein fuel pump one end is provided with oil-in and air vent, oil-in is connected with fuel tank, fuel pump sidewall is provided with oil-out, and oil-out is connected to pressurizer tank by flowline, and the pressurizer tank other end is connected with fuel oil supply system, being additionally provided with oil return opening on pressurizer tank, oil return opening is connected with fuel tank by oil returning tube.
As further improvement of these options, it is additionally provided with pressure maintaining valve between described pressurizer tank and fuel oil supply system, pressure maintaining valve includes pressure maintaining valve import, spacing block and pressure maintaining valve outlet, and pressure maintaining valve import is connected with pressurizer tank outlet, and pressure maintaining valve outlet is connected with fuel oil supply system.
As further improvement of these options, the mid portion of described oil returning tube is sped structure.
This utility model has the advantage that compared to existing technology and is connected with reasonable manner by each device connected with fuel pump, save installing space, while ensureing normal operation, avoid the fault that fuel pump needs persistent pressure to cause, the middle part of oil returning tube is set to sped structure, increase the length of oil returning tube, make excess oil lower the temperature in oil return process and be back in fuel tank.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is further illustrated.
As shown in fig. 1, a kind of safety fuel oil pump assembly, including fuel tank 1, fuel pump 2, pressurizer tank 3 and fuel oil supply system 4, wherein fuel pump 2 one end is provided with oil-in 5 and air vent 6, and oil-in 5 is connected with fuel tank 1, and fuel pump 2 sidewall is provided with oil-out 7, oil-out 7 is connected to pressurizer tank 3 by flowline 8, pressurizer tank 3 other end is connected with fuel oil supply system 4, and pressurizer tank 3 is additionally provided with oil return opening 11, and oil return opening 11 is connected with fuel tank 1 by oil returning tube 10.
As further improvement of these options, it is additionally provided with pressure maintaining valve 9 between described pressurizer tank 3 and fuel oil supply system 4, pressure maintaining valve 9 includes pressure maintaining valve import, spacing block and pressure maintaining valve outlet, and pressure maintaining valve import is connected with pressurizer tank outlet, and pressure maintaining valve outlet is connected with fuel oil supply system 4.
As further improvement of these options, the mid portion of described oil returning tube 10 is sped structure.
In this utility model, each device connected with fuel pump is connected by product with reasonable manner, save installing space, while ensureing normal operation, oil-out is down, avoid the fault that fuel pump 2 needs persistent pressure to cause, the middle part of oil returning tube 10 is set to sped structure, increases the length of oil returning tube 10, make excess oil lower the temperature in oil return process and be back in fuel tank 1.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all any amendment, equivalent replacement and improvement etc. made within spirit of the present utility model and principle, should be included within protection domain of the present utility model.
Claims (3)
1. a safety fuel oil pump assembly, it is characterized in that, including fuel tank, fuel pump, pressurizer tank and fuel oil supply system, wherein fuel pump one end is provided with oil-in and air vent, and oil-in is connected with fuel tank, fuel pump sidewall is provided with oil-out, down, oil-out is connected to pressurizer tank by flowline to oil-out, and the pressurizer tank other end is connected with fuel oil supply system, being additionally provided with oil return opening on pressurizer tank, oil return opening is connected with fuel tank by oil returning tube.
2. a kind of safety fuel oil pump assembly as claimed in claim 1, it is characterized in that, it is additionally provided with pressure maintaining valve between described pressurizer tank and fuel oil supply system, pressure maintaining valve includes pressure maintaining valve import, spacing block and pressure maintaining valve outlet, pressure maintaining valve import is connected with pressurizer tank outlet, and pressure maintaining valve outlet is connected with fuel oil supply system.
3. a kind of safety fuel oil pump assembly as claimed in claim 1, it is characterised in that the mid portion of described oil returning tube is sped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520903107.7U CN205297797U (en) | 2015-11-14 | 2015-11-14 | Security fuel pump assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520903107.7U CN205297797U (en) | 2015-11-14 | 2015-11-14 | Security fuel pump assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205297797U true CN205297797U (en) | 2016-06-08 |
Family
ID=56439183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520903107.7U Expired - Fee Related CN205297797U (en) | 2015-11-14 | 2015-11-14 | Security fuel pump assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205297797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343534A (en) * | 2018-04-09 | 2018-07-31 | 西华大学 | A kind of activity control compression-ignition engine variable fuel feed system |
-
2015
- 2015-11-14 CN CN201520903107.7U patent/CN205297797U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343534A (en) * | 2018-04-09 | 2018-07-31 | 西华大学 | A kind of activity control compression-ignition engine variable fuel feed system |
| CN108343534B (en) * | 2018-04-09 | 2023-08-18 | 西华大学 | Variable fuel supply system of active control compression ignition engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 242500 Xinchang Road, Jingxian County Economic Development Zone, Anhui, Xuancheng Patentee after: Anhui green ring pump Co., Ltd. Address before: Anhui Province, Xuancheng Province Road 242500 Jingxian County City Economic Development Zone Patentee before: ANHUI LUYUAN PUMP&VALVE CO., LTD. |
|
| 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: 20160608 Termination date: 20161114 |