CN100432416C - High pressure oil rail assembly for gasoline engine - Google Patents
High pressure oil rail assembly for gasoline engine Download PDFInfo
- Publication number
- CN100432416C CN100432416C CNB2005101349769A CN200510134976A CN100432416C CN 100432416 C CN100432416 C CN 100432416C CN B2005101349769 A CNB2005101349769 A CN B2005101349769A CN 200510134976 A CN200510134976 A CN 200510134976A CN 100432416 C CN100432416 C CN 100432416C
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- China
- Prior art keywords
- oil
- lining
- rail body
- hole
- oily rail
- 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
Links
- 230000006837 decompression Effects 0.000 claims description 52
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 100
- 239000010711 gasoline engine oil Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- Fuel-Injection Apparatus (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The present invention discloses a high pressure oil rail assembly for a gasoline engine, which is composed of a hollow oil rail main body, an oil feeding mechanism, an oil returning mechanism, an oil injector mechanism and a pressure relief mechanism, wherein both ends of the hollow oil rail main body are closed; the pressure relief mechanism comprises a sensor lining, a sensor, a pressure relief valve and a pressure relief valve lining, an oil feeding lining of the oil feeding mechanism, an oil returning lining of the oil returning mechanism, an oil injector hanging barn of the oil injector mechanism, the sensor lining of the pressure relief mechanism, and the pressure relief valve lining are distributed on the oil rail main body at intervals; a through hole which is communicated with the oil rail main body is arranged in the oil rail main body, the oil returning lining is vertically fixed on the pressure relief valve lining, and a through hole which is communicated with the pressure relief valve lining is arranged in the pressure relief valve lining; support frames which are used for fixing the oil rail main body on the oil rail main body are arranged on the oil rail main body at intervals. Because the present invention adopts the structure, the use safety and the use reliability are ensured, the arrangement space is reduced, the space arrangement can be more compact, and the present invention is convenient for assembly and maintenance.
Description
Technical field
This invention is mainly concerned with petrol engine, particularly high pressure oil rail assembly for gasoline engine.
Background technique
Gasoline engine oil rail assembly is by oily rail body at present, oil-feed mechanism, oil return mechanism, oil sprayer mechanism forms, with the four cylinder engine is example, oil-feed mechanism comprises an oil inlet pipe and the oil-feed lining that is communicated with oil inlet pipe, oil return mechanism comprises four return tubes and the oil return lining that is communicated with each return tube, oil sprayer mechanism comprises that four oil sprayers and the oil sprayer that is communicated with each oil sprayer hang the storehouse, oil rail body is the Stainless Steel Tube of a closed at both ends, an oil-feed lining and four oil sprayer gondola compartment of terrains are welded on the oily rail body, each oil sprayer hangs and all is welded with an oil return lining on the storehouse, four return tubes hang the storehouse with four oil sprayers and communicate, and are communicated with total fuel pipe simultaneously.The fuel-injection pressure of petrol engine is at 10 below the barometric pressure, and oily rail bearing is stressed lower.Along with technological progress, the fuel-injection pressure of high injection pressure petrol engine such as directly jetting gasoline engine can reach 100 more than the barometric pressure, increase the decompression mechanism of restricted oil pressure in the high injection pressure gasoline engine oil rail assembly, but the gasoline engine oil rail assembly return tube fuel line of this structure has total fuel pipe and hangs the return tube that the storehouse is connected with each oil sprayer, and spatial arrangement need be than large space.
Summary of the invention
Technical problem to be solved by this invention provides a kind of taking up room of component of reducing, and arranges compact more high pressure oil rail assembly for gasoline engine.
For solving the problems of the technologies described above, technological scheme of the present invention is: a kind of high pressure oil rail assembly for gasoline engine, by oily rail body, oil-feed mechanism, oil return mechanism, oil sprayer mechanism, decompression mechanism is formed, oil-feed mechanism comprises an oil inlet pipe and oil-feed lining, oil return mechanism comprises a return tube and the oil return lining that is communicated with return tube, oil sprayer mechanism comprises that four oil sprayers and four oil sprayers hang the storehouse, decompression mechanism comprises sensor bush, sensor in the sensor bush, the Decompression valves lining, Decompression valves in the Decompression valves lining, the closed at both ends of oil rail body, the oil-feed lining of oil-feed mechanism, the oil sprayer of oil sprayer mechanism hangs the storehouse, fixedly connected with oily rail body in the compartment of terrain, has the through hole that is connected with oily rail body in it, the sensor bush of described decompression mechanism, the Decompression valves lining is fixedlyed connected with oily rail body at interval, be provided with the through hole that is connected with oily rail body in it, described oil return lining vertical fixing is on the Decompression valves lining, be provided with the through hole that is connected with the Decompression valves lining in it, also be arranged at intervals with a plurality of on the described oily rail body directly by the connection support of bolton on cylinder cap, described connection support is a rectangular structure, the through hole that has construction bolt on it along the cuboid length direction, described oil-feed lining, four oil sprayers hang the storehouse, sensor bush, the Decompression valves lining, the oil return lining be connected support and described oily rail body forms one, be the conical surface and ball face sealing between described oil-feed lining and the oil inlet pipe, by nut compressing, between described oil return lining and the return tube is the conical surface and ball face sealing, by nut compressing.
The oily rail body of the hollow of described closed at both ends is the welding copper pipe, and its two ends are welded with oily rail lid.
Described sensor bush is a cylindrical structural, and the junction plane that itself and oily rail body are fitted is an arc, and the through hole that described and oily rail body is connected is the through hole of reducing, and is big away from the diameter of oily rail body through-holes, and has the internal thread that connects sensor.
It is that two axis are 120 ° of cylindrical combinations that described oil sprayer hangs the storehouse, an one cylindrical body has the cambered surface of tightly fitting with oily rail body, and the through hole that described and oily rail body is connected is that oil sprayer hangs in the storehouse hole and that be connected and the hole another cylindrical dead in line in the cylindrical body of fitting with oily rail body.
Described oil-feed lining is the cylindrical structural of a reducing, diameter away from oily rail body is little, its outer surface has the outside thread that connects oil inlet pipe, and the through hole that is connected with oily rail body in the described oil-feed lining is the reducing hole, and is tubaeform away from being shaped as of the hole of oily rail body.
The Decompression valves lining is a cylindrical structural, and the junction plane of itself and oily rail body is an arc, the through hole that described and oily rail body is connected be cylindrical in the through hole of reducing; Described oil return bush structure is the cylindrical structural of a reducing, the junction plane of itself and Decompression valves lining is an arc, the axis normal of oil return lining is in the Decompression valves lining, through hole and vertical the communicating of Decompression valves lining through hole in the oil return lining, oil return lining cylindrical outer surface has the outside thread that installs back oil pipe.
Owing to adopt such structure, oil rail body and oil-feed lining, oil sprayer hang storehouse, sensor bush, Decompression valves lining, oil return lining and form an integral body, the oily rail pressure of real-time monitoring directly is installed to limit the decompression mechanism of maximum oil pressure on the oil rail body, sensor installation in the sensor bush, Decompression valves is installed in the Decompression valves lining, when the intrinsic oil pressure of oily rail reaches predetermined value, the Decompression valves of decompression mechanism is opened, the intrinsic oil pressure of oily rail is reduced, with the Security that guarantees to use rapidly.Be welded with the support that connects cylinder cap on the oil rail body, oil rail body directly by bolton on cylinder cap, oil sprayer, sensor, Decompression valves all directly are connected with oily rail body, an oil inlet pipe and a return tube are sealably coupled on the oily rail body of closed at both ends by nut compressing, reduced arrangement space, arrange compactness more, and be convenient to assembling and maintenance.Simultaneously also reduced the leakage of oil dangerous spot, reduced vibration, made oil supply system more safe and reliable.
Description of drawings
The present invention is further illustrated below in conjunction with the drawings and specific embodiments;
Fig. 1 is the structural representation of high pressure oil rail assembly for gasoline engine of the present invention;
Fig. 2 is that sensor bush shown in Figure 1 is connected the sectional structure schematic representation with oily rail body;
Fig. 3 is that oil-feed lining shown in Figure 1 is connected the sectional structure schematic representation with oily rail body;
Fig. 4 interconnects the sectional structure schematic representation for oil return lining, Decompression valves lining, oily rail body shown in Figure 1;
Fig. 5 hangs storehouse sectional structure schematic representation for oil sprayer shown in Figure 1;
Fig. 6 is a support sectional structure schematic representation shown in Figure 1;
Oily rail body in the drawings, 1; 2, sensor bush; 3, oil sprayer gondola; 4, oil-feed lining; 5, Decompression valves lining; 6, oil return lining; 7, oily rail lid; 8, connect support; 9, connect support; 10, oil sprayer; 11, bolt; 12, oil inlet pipe; 13, return tube; 14, oily rail lid.
Embodiment
As shown in Figure 1, high pressure oil rail assembly for gasoline engine comprises oily rail body 1, oil-feed mechanism, oil return mechanism, oil sprayer mechanism, decompression mechanism.Oil-feed mechanism comprises oil inlet pipe 12 and oil-feed lining 4; Oil return mechanism comprises return tube 13 and oil return lining 6; Oil sprayer mechanism comprises that four oil sprayers 10 and four oil sprayers hang storehouse 3; Decompression mechanism is made up of sensor bush 2 and sensor, Decompression valves, pressure release lining 5, and sensor is installed in the sensor bush 2, Decompression valves is installed in the Decompression valves lining 5.
Oil rail body 1 is an elongated welding copper pipe, by oily rail lid 7,14 welded seal is passed through at oily rail body 1 two ends, be welded with four connection supports 8,9 on it at interval, the top that connects support 8,9 has bolt hole, has bolt 11 to pass with the cylinder cap (not shown) in it and is connected.On the oil rail body 1 also erection welding have four oil sprayers to hang storehouse 3, vertical welding is connected to oil return lining 6 on oil-feed lining 4, Decompression valves lining 5, the Decompression valves lining 5, also is welded with sensor bush 2 at an end of oily rail body 1.
As shown in Figure 2, sensor bush 2 is a cylindrical structural, the junction plane of the elongated copper pipe of itself and oily rail body 1 is an arc, sensor bush 2 and oily rail body 1 are tightly fitted, the through hole that one reducing is arranged in cylindrical, its diameter away from oily rail body is big, and has the internal thread that connects sensor.
As shown in Figure 3, oil-feed lining 4 is the cylindrical structural of a reducing, and is little away from the diameter of oily rail body 1, and its end has the outside thread that connects oil inlet pipe, and a through hole is arranged in the oil-feed lining, tubaeform away from being shaped as of the hole of oily rail body 1.
As shown in Figure 4, pressure release lining 5 is a cylindrical structural, and the junction plane of the elongated copper pipe of itself and oily rail body 1 is an arc, and pressure release lining 5 and oily rail body 1 are tightly fitted, the through hole that reducing is arranged in cylindrical, the relevant position of the installation pressure release lining of oily rail body has the hole that is connected with through hole.Oil return lining 6 is the cylindrical structural of a reducing, the junction plane of itself and pressure release lining 5 is an arc, oil return lining 6 and pressure release lining 5 are tightly fitted, and the axis normal of oil return lining 6 is in pressure release lining 5, and the through hole that communicate vertical with pressure release lining through hole arranged in the oil return lining 6.Its cylindrical outer surface has outside thread, is used to be installed into oil pipe.
As shown in Figure 5, it is that two axis are 120 ° of columniform combinations that oil sprayer hangs storehouse 3, an one cylindrical body has the cambered surface of tightly fitting with oily rail body 1, oil sprayer hang have in the storehouse 3 one with the hole of another cylindrical dead in line, between its hole and the oily rail body through hole is arranged, the relevant position that the installation oil sprayer of oily rail body 1 hangs storehouse 3 has the hole that is connected with through hole.
As shown in Figure 6, support is roughly rectangular structure, and the junction plane of the elongated copper pipe of itself and oily rail body 1 is an arc, has the through hole of construction bolt away from the end of junction plane, has bolt 11 to pass with cylinder cap in it and is connected.
Owing to adopt such structure, oil rail body and oil-feed lining, oil sprayer hang storehouse, sensor bush, Decompression valves lining, oil return lining formation one, the oily rail pressure of real-time monitoring directly is installed to limit the decompression mechanism of maximum oil pressure on the oil rail body, sensor installation in the sensor bush, Decompression valves is installed in the Decompression valves lining, and when the intrinsic oil pressure of oily rail reached predetermined value, the Decompression valves of decompression mechanism was opened, the intrinsic oil pressure of oily rail is reduced, with the Security that guarantees to use rapidly.
Be welded with the support that connects cylinder cap on the oil rail body, oil rail body directly by bolton on cylinder cap, oil inlet pipe, oil sprayer, sensor, Decompression valves, return tube all directly are connected with oily rail body, only connect a return tube on the oil rail body, compare with existing gasoline engine oil rail assembly, saved and originally hung the return tube that the storehouse is connected, reduced arrangement space with each oil sprayer, not only layout is compacter, and is convenient to assembling and maintenance.
Claims (6)
1, a kind of high pressure oil rail assembly for gasoline engine, oily rail body (1) by the hollow of closed at both ends, oil-feed mechanism, oil return mechanism, oil sprayer mechanism, decompression mechanism is formed, oil-feed mechanism comprises an oil inlet pipe and oil-feed lining (4), oil return mechanism comprises a return tube (13) and the oil return lining (6) that is communicated with return tube (13), oil sprayer mechanism comprises that four oil sprayers and four oil sprayers hang storehouse (3), decompression mechanism comprises sensor bush (2), sensor in the sensor bush (2), Decompression valves lining (5), Decompression valves in the Decompression valves lining (5), the oil-feed lining (4) of oil-feed mechanism, the oil sprayer of oil sprayer mechanism hangs storehouse (3), fixedly connected with oily rail body (1) in the compartment of terrain, has the through hole that is connected with oily rail body (1) in it, the sensor bush of described decompression mechanism (2), Decompression valves lining (5) is fixedlyed connected with oily rail body (1) at interval, be provided with the through hole that is connected with oily rail body (1) in it, described oil return lining (6) vertical fixing is on Decompression valves lining (5), be provided with the through hole that is connected with Decompression valves lining (5) in it, it is characterized in that: also be arranged at intervals with a plurality of on the described oily rail body (1) directly by the connection support (8 of bolton on cylinder cap, 9), described connection support (8,9) be rectangular structure, the through hole that has construction bolt (11) on it along the cuboid length direction, described oil-feed lining (4), four oil sprayers hang storehouse (3), sensor bush (2), Decompression valves lining (5), oil return lining (6) be connected support (8,9) form one with described oily rail body (1), between described oil-feed lining (4) and the oil inlet pipe (12) is the conical surface and ball face sealing, by nut compressing, between described oil return lining (6) and the return tube (13) is the conical surface and ball face sealing, by nut compressing.
2, a kind of high pressure oil rail assembly for gasoline engine according to claim 1 is characterized in that: the oily rail body (1) of the hollow of described closed at both ends is the welding copper pipe, and its two ends are welded with oily rail lid (7,14).
3, a kind of high pressure oil rail assembly for gasoline engine according to claim 2, it is characterized in that: described sensor bush (2) is a cylindrical structural, the junction plane that itself and oily rail body (1) are fitted is an arc, the through hole that described and oily rail body (1) is connected is the through hole of reducing, diameter away from oily rail body (1) through hole is big, and has the internal thread that connects sensor.
4, a kind of high pressure oil rail assembly for gasoline engine according to claim 2, it is characterized in that: it is 120 ° of cylindrical combinations of two axis that described oil sprayer hangs storehouse (3), an one cylindrical body has the cambered surface of tightly fitting with oily rail body (1), and the through hole that described and oily rail body (1) is connected is that oil sprayer hangs the interior hole of the cylindrical body of fitting with oily rail body in the storehouse (3) and that be connected and hole another cylindrical dead in line.
5, a kind of high pressure oil rail assembly for gasoline engine according to claim 2, it is characterized in that: described oil-feed lining (4) is the cylindrical structural of a reducing, diameter away from oily rail body (1) is little, its outer surface has the outside thread that connects oil inlet pipe, the through hole that is connected with oily rail body (1) in the described oil-feed lining is the reducing hole, and is tubaeform away from being shaped as of the hole of oily rail body (1).
6, a kind of high pressure oil rail assembly for gasoline engine according to claim 2, it is characterized in that: Decompression valves lining (5) is a cylindrical structural, the junction plane of itself and oily rail body (1) is an arc, the through hole that described and oily rail body (1) is connected be cylindrical in the through hole of reducing; Described oil return lining (6) structure is the cylindrical structural of a reducing, the junction plane of itself and Decompression valves lining (5) is an arc, the axis normal of oil return lining (6) is in Decompression valves lining (5), through hole and vertical the communicating of Decompression valves lining (5) through hole in the oil return lining (6), oil return lining (6) cylindrical outer surface has the outside thread that installs back oil pipe (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101349769A CN100432416C (en) | 2005-12-28 | 2005-12-28 | High pressure oil rail assembly for gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101349769A CN100432416C (en) | 2005-12-28 | 2005-12-28 | High pressure oil rail assembly for gasoline engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1862004A CN1862004A (en) | 2006-11-15 |
| CN100432416C true CN100432416C (en) | 2008-11-12 |
Family
ID=37389512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101349769A Expired - Fee Related CN100432416C (en) | 2005-12-28 | 2005-12-28 | High pressure oil rail assembly for gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100432416C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101275525B (en) * | 2007-03-31 | 2012-06-27 | 奇瑞汽车股份有限公司 | Gasoline engine high pressure oil rail |
| CN107524520B (en) * | 2017-08-18 | 2022-05-03 | 奇瑞汽车股份有限公司 | Noise reduction structure of oil sprayer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1137006A (en) * | 1997-07-23 | 1999-02-09 | Fuji Heavy Ind Ltd | Fuel supplying system structure of cylinder fuel injection engine |
| JP2002317729A (en) * | 2001-03-28 | 2002-10-31 | Robert Bosch Gmbh | Fuel system |
| US6647968B1 (en) * | 2000-10-25 | 2003-11-18 | James Dwayne Hankins | Back pressure valve for fuel injection system |
| CN1512053A (en) * | 2002-11-15 | 2004-07-14 | 株式会社电装 | Accumulation type fuel jet system |
| US6805105B2 (en) * | 2001-06-19 | 2004-10-19 | Denso Corporation | Fuel supply system for alternative fuel |
| JP2004316460A (en) * | 2003-04-11 | 2004-11-11 | Denso Corp | Accumulator fuel injection device |
| DE10353141A1 (en) * | 2003-11-14 | 2005-06-09 | Robert Bosch Gmbh | Method for fully emptying common rail system of fuel by flushing out the fuel using high pressure air from the compression stroke of a cylinder with suppressed firing sequence |
-
2005
- 2005-12-28 CN CNB2005101349769A patent/CN100432416C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1137006A (en) * | 1997-07-23 | 1999-02-09 | Fuji Heavy Ind Ltd | Fuel supplying system structure of cylinder fuel injection engine |
| US6647968B1 (en) * | 2000-10-25 | 2003-11-18 | James Dwayne Hankins | Back pressure valve for fuel injection system |
| JP2002317729A (en) * | 2001-03-28 | 2002-10-31 | Robert Bosch Gmbh | Fuel system |
| US6805105B2 (en) * | 2001-06-19 | 2004-10-19 | Denso Corporation | Fuel supply system for alternative fuel |
| CN1512053A (en) * | 2002-11-15 | 2004-07-14 | 株式会社电装 | Accumulation type fuel jet system |
| JP2004316460A (en) * | 2003-04-11 | 2004-11-11 | Denso Corp | Accumulator fuel injection device |
| DE10353141A1 (en) * | 2003-11-14 | 2005-06-09 | Robert Bosch Gmbh | Method for fully emptying common rail system of fuel by flushing out the fuel using high pressure air from the compression stroke of a cylinder with suppressed firing sequence |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1862004A (en) | 2006-11-15 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20081112 Termination date: 20201228 |