CN101275525B - Gasoline engine high pressure oil rail - Google Patents
Gasoline engine high pressure oil rail Download PDFInfo
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- CN101275525B CN101275525B CN2007100211816A CN200710021181A CN101275525B CN 101275525 B CN101275525 B CN 101275525B CN 2007100211816 A CN2007100211816 A CN 2007100211816A CN 200710021181 A CN200710021181 A CN 200710021181A CN 101275525 B CN101275525 B CN 101275525B
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Abstract
The invention discloses a high pressure gasoline rail of a gasoline engine, comprising a long cylindrical gasoline rail body (1), a gasoline inlet pipe (9) and a high pressure swirl injector (12) connected with the cylinder of the gasoline engine, the gasoline rail body (1) is equipped with a gasoline pressure sensor (11) communicated with the gasoline rail body (1), the high pressure gasoline rail is equipped with a sensor sleeve (2), the gasoline pressure sensor (11) is fixedly connected with the gasoline rail body (1) by the sensor sleeve (2). By using the technical scheme, the invention greatly increases the injection pressure of gasoline, facilities the complete combustion of the gasoline, and improves the engine performance and efficiency. The high pressure gasoline rail has good sealing property, high safety, simple and reliable structure, adapts to high gasoline pressure, and is suitable for gasoline direct injection engines.
Description
Technical field
The invention belongs to the technical field of motor car engine, relate to the fuel injection structure of motor car engine, more particularly, the present invention particularly relates to a kind of gasoline engine high pressure oil rail that adopts in-cylinder direct injection.
Background technique
After the gasoline engine fuel supply system develops into control fuel injection by Carburetor, originally be intake port injection, below the common 10bar of fuel-injection pressure in its oily rail.Along with the development of engine technology, the EFI petrol engine of internal combustion oil of cylinder direct injection (being Gasoline Direct Injection, the GDI technology) has appearred, and fuel pressure is up to more than the 100bar in its oily rail.The oily rail of common EFI gasoline is generally a Stainless Steel Tube, is welded with oil inlet pipe above and oil sprayer hangs storehouse etc.This oily rail bearing is stressed lower, and the intensity of oily rail is enough to pressure-bearing, so need not monitor oil pressure.And the EFI petrol engine of cylinder direct spray type, its oily rail that requires to be used to hold oily voltage stabilizing on the one hand can bear very high oil pressure; On the other hand; Since steam oil ratio (SOR) diesel oil easier fire burns; Under the engine high-temperature operating conditions, in case fuel leakage will cause very serious consequence, so need be on oily rail integrated correlation function parts; The oily rail pressure of monitoring could guarantee the Security of its use to limit maximum oil pressure in real time.But, at present, also do not have the mature technique that can address this problem.
Summary of the invention
Problem to be solved by this invention provides a kind of gasoline engine high pressure oil rail, its objective is real-time monitoring and the control of realization to the fuel pressure in the petrolic high pressure oil rail.
To achieve these goals; The technological scheme that the present invention takes is: this gasoline engine high pressure oil rail that is provided; Comprise oily rail body, the oil inlet pipe of oval tubulose and the high pressure cyclone oil sprayer that is connected with the petrol engine cylinder; On oily rail body, establish oil pressure sensor and be communicated with oily rail chamber body, on described this gasoline engine high pressure oil rail, establish sensor bush, described oil pressure sensor is fastenedly connected through sensor bush and oily rail body.
Establish sensor wire harness plug on the described oil pressure sensor; Be provided with the sensing arrangement that the parameter of fuel pressure is changed into electrical signal in the oil pressure sensor; Described sensor wire harness socket and engine electronic control unit Placement and the corresponding circuit through plug and socket carries out circuit and is connected, and the described electrical signal that is produced by oil pressure imports engine electronic control unit into from oil pressure sensor.
Described sensor bush is a cylindrical structural; Its axis is provided with coaxial through hole; The axis normal of this axis and oily rail body, sensor bush and oily rail body are for pass through connection mutually, and described through hole is the through hole of reducing; Aperture away from oily rail body is bigger, and the interior circle of outer end is provided with the internal thread that connects oil pressure sensor.
Establish oil sprayer on the described oily rail body and hang the storehouse; Described high pressure cyclone oil sprayer hangs the storehouse through oil sprayer and oily rail body is fastenedly connected; Oil sprayer hangs between storehouse and the oily rail body and is fastenedly connected for what pass through mutually; Hang storehouse, high pressure cyclone oil sprayer from oily rail body, oil sprayer,, have fuel path to communicate until cylinder.
It is the cylindrical combination that two axis are 120 ° of angles that described oil sprayer hangs the storehouse; One of them cylindrical body has the cambered surface of passing through connection with oily rail body mutually, and another cylindrical body and high pressure cyclone oil sprayer are fastenedly connected, and oil sprayer hangs to have two holes and communicate in the storehouse; Promptly the hole of two cylindrical deads in line communicates; After described two holes were communicated with, the one of which end communicated with oily rail body, and the other end communicates with the high pressure cyclone oil sprayer.
On described oily rail body, establish the oil inlet pipe lining; Described oil inlet pipe is fastenedly connected through oil inlet pipe lining and oily rail body; Described oil inlet pipe lining is the cylindrical structural of the change external diameter of band through hole on the axis; Its diameter away from one section of oily rail body is less, and its outer end has the outside thread that connects oil inlet pipe, and the through hole of described oil inlet pipe lining is away from the flaring inner conical surface that is shaped as in the aperture of oily rail body.
The flaring inner conical surface aperture of described oil inlet pipe lining is connected with oil inlet pipe, establishes the ball-type joint on the connection termination of oil inlet pipe, cooperates with the inner conical surface of oil inlet pipe lining and screw through cap to form sealing.
Establish two oily rail two end supports on the position of described oily rail body near two ends; Described oily rail body shaft is to establish two oily rail intermediate supports near position intermediate; Described oily rail two end supports are identical with oily rail intermediate support shape and structure; Be rectangular structure, the junction plane of itself and oily rail body is a cambered surface, has the through hole that passes oily rail construction bolt away from the end of junction plane.
The material of the oily rail body of described hollow is high-intensity metal tube, respectively is provided with an oily rail end cap at its two ends, and is fastenedly connected with oily rail body, and makes the two ends of oily rail body form sealing.
Being fastenedly connected of described sensor bush and oily rail body, oil sprayer hangs the storehouse and being fastenedly connected of oily rail body, high pressure cyclone oil sprayer and oil sprayer hang being fastenedly connected of being fastenedly connected of being fastenedly connected of being fastenedly connected of storehouse, oily rail end cap and oily rail body, oil inlet pipe lining and oily rail body, oily rail two end supports and oily rail intermediate support and oily rail body, is to be welded to connect.
The present invention adopts technique scheme, can increase fuel-injection pressure greatly, promotes the abundant burning of fuel oil, improves engine performance and efficient.This high pressure oil rail good airproof performance, safe, simple and reliable for structure adapts to high fuel pressure, is applicable to the petrol engine of inner cylinder direct injection.
Description of drawings
The mark of facing down among expressed content of each width of cloth accompanying drawing of this specification and the figure is made brief description:
Fig. 1 is a perspective view of the present invention;
Fig. 2 is a structure orthographic projection schematic representation of the present invention;
Fig. 3 is the cross-sectional schematic of the sensor bush structure among the present invention;
Fig. 4 is the cross-sectional schematic of the oil inlet pipe bush structure among the present invention;
Fig. 5 hangs the structural representation in storehouse for the oil sprayer among the present invention;
Fig. 6 hangs the storehouse for the oil sprayer among Fig. 5 structure is along cross-sectional schematic that B-the B face dissects;
Fig. 7 is oily rail two end supports among the present invention or the structural representation of oily rail intermediate support;
Fig. 8 is that supporting structure among Fig. 7 is along the cross-sectional schematic of C-C cutting plane.
Be labeled as among the figure: 1, oily rail body, 2, sensor bush, 3, oil sprayer hangs the storehouse; 4, oil inlet pipe lining, 5, oily rail end cap, 6, oily rail two end supports; 7, oily rail intermediate support, 8, sensor wire harness socket, 9, oil inlet pipe; 10, oily rail construction bolt, 11, oil pressure sensor, 12, the high pressure cyclone oil sprayer.
Embodiment
Below in conjunction with the effect of accompanying drawing specific embodiments of the invention such as structure, working principle, each several part, make and manipulate method etc.; Do further detailed explanation through embodiment, understand technological scheme of the present invention more accurately to help those skilled in the art.
The of the present invention structure expressed like Fig. 1 to Fig. 8; The present invention is a kind of gasoline engine high pressure oil rail; Comprise oily rail body 1, the oil inlet pipe 9 of oval tubulose and the high pressure cyclone oil sprayer 12 that is connected with the petrol engine cylinder; The high pressure fuel of high pressure oil pump gets into high pressure oil rails 1 through oil inlet pipe 9, and through high pressure cyclone oil sprayer 12 with in cylinder, spraying after the fuel-oil atmozation.
The internal combustion oil of cylinder direct injection (is Gasoline Direct Injection; The petrol engine of control fuel injection GDI technology), the oily rail that requires to be used to hold oily voltage stabilizing on the one hand can bear very high oil pressure, on the other hand; Since steam oil ratio (SOR) diesel oil easier fire burns; Under the engine high-temperature operating conditions, in case fuel leakage will cause very serious consequence, so on oily rail, answer integrated correlation function parts; The oily rail pressure of monitoring guarantees the Security of its use to limit maximum oil pressure in real time.
In order to realize to the real-time monitoring of the fuel pressure in the petrolic high pressure oil rail and the purpose of control; The technological scheme that the present invention takes is: like Fig. 1, shown in Figure 2; This gasoline engine high pressure oil rail that is provided; On oily rail body 1, establish oil pressure sensor 11 and be communicated with oily rail body 1 inner chamber, on described this gasoline engine high pressure oil rail, establish sensor bush 2, described oil pressure sensor 11 is fastenedly connected through sensor bush 2 and oily rail body 1.Oil pressure sensor 11 is transformed into the numerical value of the pressure of the high pressure fuel in the high pressure oil rail 1 electrical signal and transfers to engine electronic control unit (ECU); So that engine electronic control unit (ECU) is adjusted the pressure of high pressure oil pump 1; Guarantee the pressure stability in the high pressure oil rail 1, be unlikely to cause too high fuel pressure to influence the proper functioning of motor.For example, overpressure causes leakage, causes the burning of fuel oil.
Through pressure stability in the guarantee of work oil rail of control oil pump, the high pressure oil rail maximum is born oil pressure and can be reached more than the 100bar, and high pressure cyclone oil sprayer 12 hangs storehouse 3 with oil sprayer and links to each other, and realizes that under high pressure internal combustion oil of cylinder sprays.Oil pressure sensor is monitored oil pressure in real time, in case overstep the extreme limit, electronic control system (ECU) will be controlled high pressure oil pump, guarantee the Security of oily rail.
In order to measure fuel pressure more accurately, oil pressure sensor 1 should be arranged on the inlet near oil inlet pipe 9, and is the highest at this pressure from the fuel oil of high pressure oil pump input because in oily rail body 1, as long as the oil pressure at this place of control.
Adopt technique scheme, can increase fuel-injection pressure greatly, promote the abundant burning of fuel oil, improve engine performance and efficient.This high pressure oil rail good airproof performance, safe, simple and reliable for structure adapts to high fuel pressure, is applicable to direct spray petrol engine in cylinder.
Concrete structure above-mentioned high pressure oil rail 1 of the present invention and that be connected with oil pressure sensor 11 and effect thereof, characteristics are:
Establish sensor wire harness plug 8 on the oil pressure sensor 11; Be provided with the sensing arrangement that the parameter of fuel pressure is changed into electrical signal in the oil pressure sensor 11; Described sensor wire harness socket 8 and engine electronic control unit (ECU) Placement and the corresponding circuit through plug and socket carries out circuit and is connected, and the described electrical signal that is produced by oil pressure imports engine electronic control unit (ECU) into from oil pressure sensor 11.
The Placement of oil pressure sensor 11 is: as shown in Figure 3; Described sensor bush 2 is a cylindrical structural, and its axis is provided with coaxial through hole, the axis normal of this axis and oily rail body 1; Sensor bush 2 and oily rail body 1 are for pass through connection mutually; Described through hole is the through hole of reducing, and is bigger away from the aperture of oily rail body 1, and the interior circle of outer end is provided with the internal thread that connects oil pressure sensor 11.Sensor bush 2 is a cambered surface with the junction plane of the slender metal pipe of oily rail body 1, and sensor bush 2 and oily rail body 1 are tightly fitted, and forms tight sealing.
Oil spout structure of the present invention and effect thereof, characteristics are:
As depicted in figs. 1 and 2; Establish oil sprayer on the oil rail body 1 and hang storehouse 3; Described high pressure cyclone oil sprayer 12 hangs storehouse 3 through oil sprayer and is fastenedly connected with oily rail body 1, and it is being fastenedly connected of passing through mutually that oil sprayer hangs between storehouse 3 and the oily rail body 1, hangs storehouse 3, high pressure cyclone oil sprayer 12 from oily rail body 1, oil sprayer; Until cylinder, there is fuel path to communicate.High pressure cyclone oil sprayer 12 is installed on the cylinder; Directly to cylinder fuel injection; High pressure cyclone oil sprayer 12 of every cylinder, the high pressure fuel of high-pressure fuel pump output is dispensed to each high pressure cyclone oil sprayer 12 through oily rail body 1, ejection eddy flow mist of oil; It is more reasonable that the gasoline of atomizing is distributed in the firing chamber, more favourable to shortening the mixed gas formation time.In addition, the spray regime of high pressure cyclone oil sprayer 12 can be regulated according to combustion manner.
Like Fig. 5, shown in Figure 6, oil sprayer hangs storehouse 3 and is fixed on the oily rail body 1, requires to connect and seal reliably.It is the cylindrical combination that two axis are 120 ° of angles that described oil sprayer hangs storehouse 3; One of them cylindrical body has the cambered surface of passing through connection with oily rail body 1 mutually, and another cylindrical body and high pressure cyclone oil sprayer 12 are fastenedly connected, and oil sprayer hangs to have two holes and communicate in the storehouse 3; Promptly the hole of two cylindrical deads in line communicates; After described two holes were communicated with, the one of which end communicated with oily rail body 1, and the other end communicates with high pressure cyclone oil sprayer 12.The junction plane that oil sprayer hangs the slender metal pipe of storehouse 3 and oily rail body 1 is a cambered surface, makes oil sprayer hang storehouse 3 and tightly fits with oily rail body 1, forms tight sealing.
High pressure cyclone oil sprayer 12 1 ends are pressed into oil sprayer and hang storehouse 3, oily rail body 1 by oily rail construction bolt is fastening be installed on the cylinder cap after, high pressure cyclone oil sprayer 12 is therefore compacted and reach matching requirements.
The oil-feed structure and the characteristics of oily rail body 1 of the present invention do
As shown in Figure 4; On described oily rail body 1, establish oil inlet pipe lining 4; Described oil inlet pipe 9 is fastenedly connected through oil inlet pipe lining 4 and oily rail body 1, and described oil inlet pipe lining 4 is the cylindrical structural of the change external diameter of band through hole on the axis, and its diameter away from 1 one sections of oily rail bodies is less; Its outer end has the outside thread that connects oil inlet pipe 9, and the through hole of described oil inlet pipe lining is away from the flaring inner conical surface that is shaped as in the aperture of oily rail body 1.
The flaring inner conical surface aperture of described oil inlet pipe lining 4 is connected with oil inlet pipe 9, establishes the ball-type joint on the connection termination of oil inlet pipe 9, cooperates with the inner conical surface of oil inlet pipe lining 4 and screw through cap to form sealing.Between oil inlet pipe lining 4 and the oil inlet pipe 9 is the conical surface and ball face sealing, after nut compressing, can form good sealing effect, and easy for installation.
Like Fig. 1, Fig. 2, Fig. 7 and shown in Figure 8; Establish two oily rail two end supports 6 on the position of described oily rail body 1 near two ends, described oily rail body 1 is axially established two oily rail intermediate supports 7 near position intermediate, and described oily rail two end supports 6 are identical with oily rail intermediate support 7 shape and structures; Be the structure that side surface direction is approximately cuboid; Its transverse section is a pentagon, and the junction plane of itself and oily rail body 1 is a cambered surface, has the through hole that passes oily rail construction bolt 10 away from the end of junction plane.Four oily rail construction bolts 10 are fastened on four oily rail supports on the cylinder cap of cylinder respectively.The junction plane of the slender metal pipe of oil rail support and oily rail body 1 is a cambered surface, and oily rail support and oily rail body 1 are tightly fitted, and forms tight sealing.
Owing to adopt such structure; Oil rail body and sensor bush 2, oil sprayer hang storehouse 3, oil-feed lining 4 is integrally formed; Oil-feed lining 4 can directly be installed into oil pipe, and oil sprayer hangs storehouse 3 can directly install oil sprayer, and sensor bush 2 can directly connect sensor wire harness plug; Also be welded with the support that connects cylinder cap on the oil rail body, oily rail body directly passes through bolton on cylinder cap, not only arranges more compactness, and is convenient to assembling and maintenance.
Because oily rail body 1 is the member of pipe shape, so its two ends must seal tightly, its concrete structure is:
The material of the oily rail body 1 of hollow is high-intensity metal tube, can adopt steel pipe, for example, can adopt stainless steel pipe, perhaps adopts copper pipe.Respectively be provided with an oily rail end cap 5 at its two ends, and be fastenedly connected, and make the two ends of oily rail body 1 form sealing with oily rail body 1.
Fastening junction planes all among the present invention must be realized tight sealing, so, the mode of execution below the present invention has taked:
Being fastenedly connected of described sensor bush 2 and oily rail body 1, oil sprayer hang being fastenedly connected of storehouse 3 and oily rail body 1, high pressure cyclone oil sprayer 12 and oil sprayer and hang being fastenedly connected of being fastenedly connected of being fastenedly connected of being fastenedly connected of storehouse 3, oily rail end cap 5 and oily rail body 1, oil inlet pipe lining 4 and oily rail body 1, oily rail two end supports 6 and oily rail intermediate support 7 and oily rail body 1, are to be welded to connect.The mode of its welding is brazing.
Confirm each critical component size according to designing requirement, processing oil rail body 1, sensor bush 2, four oil sprayers hang storehouse 3, oil inlet pipe lining 4, four parts such as support then, at last by position assembling and welding are fixing separately.
Combine accompanying drawing that the present invention has been carried out exemplary description above; Obviously the concrete realization of the present invention does not receive the restriction of aforesaid way; As long as the various improvement of having adopted method design of the present invention and technological scheme to carry out; Or design of the present invention and technological scheme are directly applied to other occasion without improving, all within protection scope of the present invention.
Claims (1)
1. a gasoline engine high pressure oil rail comprises oily rail body (1), the oil inlet pipe (9) of oval tubulose and the high pressure cyclone oil sprayer (12) that is connected with gasoline engine cylinder, it is characterized in that:
On oily rail body (1), establish oil pressure sensor (11) and be communicated with oily rail body (1) inner chamber, on described this gasoline engine high pressure oil rail, establish sensor bush (2), described oil pressure sensor (11) is fastenedly connected through sensor bush (2) and oily rail body (1);
Establish sensor wire harness socket (8) on the described oil pressure sensor (11); Oil pressure sensor is provided with the sensing arrangement that the parameter of fuel pressure is changed into electrical signal in (11); Described sensor wire harness socket (8) and engine electronic control unit Placement and the corresponding circuit through plug and socket carries out circuit and is connected, and the said electrical signal that is produced by fuel pressure imports engine electronic control unit into from oil pressure sensor (11);
Described sensor bush (2) is a cylindrical structural; Its axis is provided with coaxial through hole; The axis normal of this axis and oily rail body (1), sensor bush (2) and oily rail body (1) are for pass through connection mutually, and described through hole is the through hole of reducing; Aperture away from oily rail body (1) is bigger, and the interior circle of outer end is provided with the internal thread that connects oil pressure sensor (11);
Establish oil sprayer on the described oily rail body (1) and hang storehouse (3); Described high pressure cyclone oil sprayer (12) hangs storehouse (3) through oil sprayer and is fastenedly connected with oily rail body (1); Oil sprayer hangs between storehouse (3) and the oily rail body (1) and is fastenedly connected for what pass through mutually; Hang storehouse (3), high pressure cyclone oil sprayer (12) from oily rail body (1), oil sprayer,, have fuel path to communicate until cylinder;
It is the cylindrical combination that two axis are 120 ° of angles that described oil sprayer hangs storehouse (3); One of them cylindrical body has the cambered surface of passing through connection with oily rail body (1) mutually, and another cylindrical body and high pressure cyclone oil sprayer (12) are fastenedly connected, and oil sprayer hangs to have two holes and communicate in the storehouse (3); Promptly the hole of two cylindrical deads in line communicates; After described two holes were communicated with, the one of which end communicated with oily rail body (1), and the other end communicates with high pressure cyclone oil sprayer (12);
On described oily rail body (1), establish oil inlet pipe lining (4); Described oil inlet pipe (9) is fastenedly connected through oil inlet pipe lining (4) and oily rail body (1); Described oil inlet pipe lining (4) is the cylindrical structural of the change external diameter of band through hole on the axis; Its diameter away from (1) one section of oily rail body is less, and its outer end has the outside thread of connection oil inlet pipe (9), and the through hole of described oil inlet pipe lining is away from the flaring inner conical surface that is shaped as in the aperture of oily rail body (1);
The flaring inner conical surface aperture of described oil inlet pipe lining (4) is connected with oil inlet pipe (9), establishes the ball-type joint on the connection termination of oil inlet pipe (9), cooperates with the inner conical surface of oil inlet pipe lining (4) and screw through cap to form sealing;
Described oily rail body (1) is established two oily rail two end supports (6) on the position near two ends; Described oily rail body (1) is axially established two oily rail intermediate supports (7) near position intermediate; Described oily rail two end supports (6) are identical with oily rail intermediate support (7) shape and structure; Be rectangular structure, the junction plane of itself and oily rail body (1) is a cambered surface, has the through hole that passes oily rail construction bolt (10) away from the end of junction plane;
The material of the said oily rail body (1) of hollow is high-intensity metal tube, respectively is provided with an oily rail end cap (5) at its two ends, and is fastenedly connected with oily rail body (1), and makes the two ends of oily rail body (1) form sealing;
Described being fastenedly connected is and is welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100211816A CN101275525B (en) | 2007-03-31 | 2007-03-31 | Gasoline engine high pressure oil rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100211816A CN101275525B (en) | 2007-03-31 | 2007-03-31 | Gasoline engine high pressure oil rail |
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| Publication Number | Publication Date |
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| CN101275525A CN101275525A (en) | 2008-10-01 |
| CN101275525B true CN101275525B (en) | 2012-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007100211816A Active CN101275525B (en) | 2007-03-31 | 2007-03-31 | Gasoline engine high pressure oil rail |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963120B (en) * | 2010-09-03 | 2011-11-16 | 北京航空航天大学 | Stabilized-pressure oil supply system of high-pressure direct-injection injector and control method thereof |
| CN106078052B (en) * | 2016-08-01 | 2017-09-12 | 上海众源燃油分配器制造有限公司 | A kind of positioning tool welded for high pressure oil rail support |
| JP2019052616A (en) * | 2017-09-19 | 2019-04-04 | 臼井国際産業株式会社 | Rail for high-pressure direct injection |
| CN108397324A (en) * | 2018-04-27 | 2018-08-14 | 上海众源燃油分配器制造有限公司 | A kind of gasoline high pressure oil rail and its processing technology |
| CN115750516B (en) * | 2022-11-15 | 2023-11-10 | 扬州大山液压气动制造有限公司 | Hydraulic cylinder anti-rotation airtight structure and manufacturing and mounting method |
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| WO2003048563A1 (en) * | 2001-11-27 | 2003-06-12 | Robert Bosch Gmbh | High-pressure fuel accumulator and method for producing such a high-pressure fuel accumulator |
| JP2003307164A (en) * | 2002-04-12 | 2003-10-31 | Usui Kokusai Sangyo Kaisha Ltd | Fuel delivery pipe |
| EP1146225A3 (en) * | 2000-04-13 | 2004-01-21 | Siemens Canada limited | Snap fuel rail |
| CN1862004A (en) * | 2005-12-28 | 2006-11-15 | 奇瑞汽车有限公司 | High pressure oil rail assembly for gasoline engine |
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- 2007-03-31 CN CN2007100211816A patent/CN101275525B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1146225A3 (en) * | 2000-04-13 | 2004-01-21 | Siemens Canada limited | Snap fuel rail |
| WO2003048563A1 (en) * | 2001-11-27 | 2003-06-12 | Robert Bosch Gmbh | High-pressure fuel accumulator and method for producing such a high-pressure fuel accumulator |
| JP2003307164A (en) * | 2002-04-12 | 2003-10-31 | Usui Kokusai Sangyo Kaisha Ltd | Fuel delivery pipe |
| CN1862004A (en) * | 2005-12-28 | 2006-11-15 | 奇瑞汽车有限公司 | High pressure oil rail assembly for gasoline engine |
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