CN104863770A - High-pressure fuel distribution pipe for direct injection gasoline engine - Google Patents
High-pressure fuel distribution pipe for direct injection gasoline engine Download PDFInfo
- Publication number
- CN104863770A CN104863770A CN201510283832.3A CN201510283832A CN104863770A CN 104863770 A CN104863770 A CN 104863770A CN 201510283832 A CN201510283832 A CN 201510283832A CN 104863770 A CN104863770 A CN 104863770A
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- CN
- China
- Prior art keywords
- pipe
- main oil
- fuel distribution
- pressure fuel
- injector seat
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- 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.)
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Abstract
The invention relates to a high-pressure fuel distribution pipe for a direct injection gasoline engine. A main oil pipe, fuel injector bases, a high-pressure pipe joint and mounting brackets are integrally formed in a forged mode, the main oil pipe is provided with the high-pressure pipe joint and the fuel injector bases, the fuel injector bases are installed on the mounting brackets, a sensor connector is connected with one end of the main oil pipe through threads, and an oil inlet pipe plug is connected with the other end of the main oil pipe through threads. The high-pressure fuel distribution pipe has high pressure resistance and can bear pressure higher than 350 bars; sealing performance is good, the number of parts is relatively small, and no risk of deformation or leakage caused by poor welding exists; the process is relatively simple, brazing is not needed, and energy resources are saved.
Description
[technical field]
The present invention relates to direct spray petrol engine in cylinder high pressure fuel distribution pipe art field, specifically, is a kind of high pressure fuel distribution pipe for direct spray petrol engine in cylinder.
[background technique]
Along with the development of engine technology, its oily rail internal pressure of in-cylinder direct fuel-injection engine will raise gradually, and the normal fuel pressure of existing oily rail is at about 200bar.Existing in-cylinder direct fuel-injection engine oil rail is generally a stainless-steel pipe, and two ends welding plug is closed, and is welded with oil injector seat, inlet connector, sensor connector, fitting seat, wire harness bracket etc. above stainless-steel pipe.
Along with the lifting that engine performance requires, fuel pressure will raise, and also higher to the requirement of withstand voltage of oily rail, existing structure bearing capacity is relatively low.
Main oil pipe and oil injector seat, high-pressure pipe connector, mounting bracket etc. are set to forge one-body molded by the present invention accordingly, in main oil pipe two ends machining screw, sensor, inlet connector are adopted with main oil pipe and are threaded.Oil injector seat side is provided with through hole, connects oil injector seat and main oil pipe oil circuit, be arranged through outside through hole be threaded closed.
[summary of the invention]
The object of the invention is to overcome the deficiencies in the prior art, a kind of high pressure fuel distribution pipe for direct spray petrol engine in cylinder is provided.
The object of the invention is to be achieved through the following technical solutions:
A kind of high pressure fuel distribution pipe for direct spray petrol engine in cylinder, main oil pipe and oil injector seat, high-pressure pipe connector, mounting bracket is one-body molded for forging, main oil pipe arranges high-pressure pipe connector, oil injector seat on main oil pipe, oil injector seat is arranged on mounting bracket, sensor connector is connected with one end of main oil pipe by screw thread, and oil inlet pipe plug is connected with other one end of main oil pipe by screw thread.
The number of described oil injector seat is 2 ~ 12.
Described oil injector seat side is provided with through hole, and through hole connects oil injector seat and main oil pipe oil circuit;
Be arranged through screw plug outside described through hole and carry out connecting sealed.
Described screw plug is designed to outer-hexagonal plug.
Described high-pressure pipe connector also can design the end face supervisor, is connected with supervisor by screw thread, replaces plug.
Described oil injector seat is uniformly distributed on main oil pipe, and span can be arranged according to engine arrangement.
Compared with prior art, good effect of the present invention is:
Main oil pipe of the present invention and oil injector seat, high-pressure pipe connector, mounting bracket are one-body molded for forging, and sensor connector, inlet connector adopt with main oil pipe and be threaded.
Advantage:
Voltage endurance capability is high, can bear 350bar with upward pressure.
Good seal performance, component are relatively less, do not have the risk that failure welding is out of shape, leaks.
Technique is relatively simple, does not need through soldering etc., energy saving.
[embodiment]
Fig. 1 assembly structure schematic diagram of the present invention;
Being labeled as in accompanying drawing: 1 main oil pipe, 2 oil injector seats, 3 high-pressure pipe connectors, 4 mounting brackets, 5 sensor connector, 6 oil inlet pipe plugs, 7 screw plugs.
[embodiment]
The present invention is below provided a kind of embodiment of the high pressure fuel distribution pipe for direct spray petrol engine in cylinder.
Embodiment 1
Refer to accompanying drawing 1, a kind of high pressure fuel distribution pipe for direct spray petrol engine in cylinder, main oil pipe 1 and oil injector seat 2, high-pressure pipe connector 3, mounting bracket 4 is one-body molded for forging, and main oil pipe 1 arranges high-pressure pipe connector, main oil pipe 1 arranges oil injector seat 2, oil injector seat is arranged on mounting bracket, and sensor connector 5 is connected by screw thread one end with main oil pipe 1, and oil inlet pipe plug 6 is connected with other one end of main oil pipe 1 by screw thread.
The number of described oil injector seat is 2 ~ 12; Be preferably 4;
Described oil injector seat side is provided with through hole, and through hole connects oil injector seat 2 and main oil pipe 1 oil circuit,
Be arranged through screw plug 7 outside described through hole and carry out connecting sealed.
Described screw plug is designed to outer-hexagonal plug.
Described high-pressure pipe connector 3 also can design the end face supervisor 1, is connected with supervisor 1 by screw thread, replaces plug 6.
Described oil injector seat is uniformly distributed on main oil pipe, and span can be arranged according to engine arrangement.
Described main oil pipe is distributed in side or the both sides of backbone.
Main oil pipe of the present invention and oil injector seat, high-pressure pipe connector, mounting bracket is one-body molded for forging, and sensor connector, inlet connector adopts with main oil pipe and is threaded.
Main oil pipe and oil injector seat, high-pressure pipe connector, mounting bracket etc. are set to forge one-body molded by the present invention accordingly, overcome the defect of existing welding, in main oil pipe two ends machining screw, sensor, inlet connector are adopted with main oil pipe and be threaded.Oil injector seat side is provided with through hole, connects oil injector seat and main oil pipe oil circuit, be arranged through outside through hole be threaded closed.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, without departing from the inventive concept of the premise; can also make some improvements and modifications, these improvements and modifications also should be considered within the scope of protection of the present invention.
Claims (6)
1. the high pressure fuel distribution pipe for direct spray petrol engine in cylinder, it is characterized in that, main oil pipe and oil injector seat, high-pressure pipe connector, mounting bracket is one-body molded for forging, and main oil pipe arranges high-pressure pipe connector, oil injector seat on main oil pipe, oil injector seat is arranged on mounting bracket, and sensor connector is connected with one end of main oil pipe by screw thread, and oil inlet pipe plug is connected with other one end of main oil pipe by screw thread.
2. a kind of high pressure fuel distribution pipe for direct spray petrol engine in cylinder as claimed in claim 1, it is characterized in that, the number of described oil injector seat is 2 ~ 12.
3. a kind of high pressure fuel distribution pipe for direct spray petrol engine in cylinder as claimed in claim 1, it is characterized in that, described oil injector seat side is provided with through hole, and through hole connects oil injector seat and main oil pipe oil circuit.
4. a kind of high pressure fuel distribution pipe for direct spray petrol engine in cylinder as claimed in claim 3, is characterized in that, be arranged through screw plug and carry out connecting sealed outside described through hole.
5. a kind of high pressure fuel distribution pipe for direct spray petrol engine in cylinder as claimed in claim 4, it is characterized in that, described screw plug is designed to outer-hexagonal plug.
6. a kind of high pressure fuel distribution pipe for direct spray petrol engine in cylinder as claimed in claim 1, it is characterized in that, described oil injector seat is uniformly distributed on main oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510283832.3A CN104863770A (en) | 2015-05-28 | 2015-05-28 | High-pressure fuel distribution pipe for direct injection gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510283832.3A CN104863770A (en) | 2015-05-28 | 2015-05-28 | High-pressure fuel distribution pipe for direct injection gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104863770A true CN104863770A (en) | 2015-08-26 |
Family
ID=53909861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510283832.3A Pending CN104863770A (en) | 2015-05-28 | 2015-05-28 | High-pressure fuel distribution pipe for direct injection gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104863770A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869253A (en) * | 2018-12-11 | 2019-06-11 | 上海威克迈龙川汽车发动机零件有限公司 | A kind of distribution pipe and its processing technology and engine high pressure oil rail assembly |
| CN116201669A (en) * | 2023-01-18 | 2023-06-02 | 重庆长安汽车股份有限公司 | Fuel manifold assembly, engine and vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1205049A (en) * | 1996-09-30 | 1999-01-13 | 罗伯特·博施有限公司 | High pressure fuel accumulator |
| DE19744094A1 (en) * | 1997-10-06 | 1999-05-27 | Siemens Ag | Integrated fuel-rail injection system for IC engine e.g. diesel engine |
| GB2416373B (en) * | 2004-07-22 | 2006-07-26 | Benteler Automobiltechnik Gmbh | Fuel feed for an internal combustion engine with direct injection |
| CN101446251A (en) * | 2008-12-25 | 2009-06-03 | 联合汽车电子有限公司 | High pressure fuel distribution pipe and manufacturing method thereof |
| US20120138020A1 (en) * | 2009-08-11 | 2012-06-07 | Kefico Corporation | Mounting structure for a direct injection fuel rail |
| CN202468115U (en) * | 2012-03-02 | 2012-10-03 | 山东鑫亚工业股份有限公司 | Symmetrical integral high-pressure common rail pipe |
-
2015
- 2015-05-28 CN CN201510283832.3A patent/CN104863770A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1205049A (en) * | 1996-09-30 | 1999-01-13 | 罗伯特·博施有限公司 | High pressure fuel accumulator |
| DE19744094A1 (en) * | 1997-10-06 | 1999-05-27 | Siemens Ag | Integrated fuel-rail injection system for IC engine e.g. diesel engine |
| GB2416373B (en) * | 2004-07-22 | 2006-07-26 | Benteler Automobiltechnik Gmbh | Fuel feed for an internal combustion engine with direct injection |
| CN101446251A (en) * | 2008-12-25 | 2009-06-03 | 联合汽车电子有限公司 | High pressure fuel distribution pipe and manufacturing method thereof |
| US20120138020A1 (en) * | 2009-08-11 | 2012-06-07 | Kefico Corporation | Mounting structure for a direct injection fuel rail |
| CN202468115U (en) * | 2012-03-02 | 2012-10-03 | 山东鑫亚工业股份有限公司 | Symmetrical integral high-pressure common rail pipe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869253A (en) * | 2018-12-11 | 2019-06-11 | 上海威克迈龙川汽车发动机零件有限公司 | A kind of distribution pipe and its processing technology and engine high pressure oil rail assembly |
| CN116201669A (en) * | 2023-01-18 | 2023-06-02 | 重庆长安汽车股份有限公司 | Fuel manifold assembly, engine and vehicle |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150826 |