US20010010217A1 - Fuel supply system for internal combustion engines having fuel leakage restricting structure - Google Patents
Fuel supply system for internal combustion engines having fuel leakage restricting structure Download PDFInfo
- Publication number
- US20010010217A1 US20010010217A1 US09/808,346 US80834601A US2001010217A1 US 20010010217 A1 US20010010217 A1 US 20010010217A1 US 80834601 A US80834601 A US 80834601A US 2001010217 A1 US2001010217 A1 US 2001010217A1
- Authority
- US
- United States
- Prior art keywords
- injector
- fuel
- supply system
- delivery pipe
- fuel supply
- 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.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
- F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
- F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/12—Other methods of operation
- F02B2075/125—Direct injection in the combustion chamber for spark ignition engines, i.e. not in pre-combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/85—Mounting of fuel injection apparatus
- F02M2200/856—Mounting of fuel injection apparatus characterised by mounting injector to fuel or common rail, or vice versa
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the present invention relates to a fuel supply system for internal combustion engines which has an improved fuel leakage restricting structure.
- a cylinder direct injection type is proposed as an automotive vehicle gasoline internal combustion engine as shown in FIG. 6A to improve engine efficiency for environmental protection.
- a fuel delivery pipe 1 is connected to a high pressure fuel pump (not shown) via a fuel pipe 2 .
- a fuel injector 4 for each cylinder is mounted on an engine cylinder head 5 so that fuel is directly injected into a combustion chamber.
- the injector 4 is coupled with the delivery pipe 1 via a rubber sealing member such as an O-ring 3 .
- a high pressure fuel injection is attained by the injector 4 to improve fuel spray atomization. It is important to ensure sealing property in the fuel supply system.
- the rubber sealing member 3 fitted between the delivery pipe 1 and the injector 4 tends to change its sealing characteristics largely depending on changes in surrounding temperature. Further, the delivery pipe 1 bows in response to the high fuel pressure by an amount of flexing ⁇ as shown in FIG. 6(B). As a result, use of the rubber sealing member 3 is limited by surrounding conditions (fuel pressure, temperature, etc.).
- a delivery pipe is divided into a plurality parts and adjacent two of the pipe parts of the delivery pipe are coupled with each other at a connecting part having a substantially the same fuel passage diameter as that of the delivery pipe.
- a flexible sealing member is disposed in the connecting part.
- a coupling member is provided between a delivery pipe and an injector so that the coupling member is coupled flexibly with both of the delivery pipe and the injectors.
- a cushioning member having a sealing property is inserted between an injector and a cylinder head to couple the injector with the cylinder head flexibly.
- a fuel passage communicated with a high pressure pump is formed in a cylinder head to supply fuel heated by the cylinder head to an injector.
- FIG. 1A is a cross sectional view showing a fuel supply system directed to a four-cylinder engine according to a first embodiment of the present invention
- FIG. 1B is a cross sectional view showing schematically the deformation of a delivery pipe in the first embodiment
- FIG. 2 is a cross sectional view showing a fuel supply system directed to a six-cylinder engine according to a second embodiment of the present invention
- FIG. 3A is a cross sectional view showing a fuel supply system according to a third embodiment of the present invention.
- FIG. 3B is a cross sectional view showing schematically the deformation of a delivery pipe in the third embodiment
- FIG. 4 is a cross sectional view showing a fuel supply system according to a fourth embodiment of the present invention.
- FIG. 5 is a cross sectional view showing a fuel supply system according to a fifth embodiment of the present invention.
- FIG. 6A is a cross sectional view showing a conventional fuel supply system directed to a four-cylinder engine.
- FIG. 6B is a cross sectional view showing schematically the deformation of a delivery pipe in the conventional fuel supply system.
- a delivery pipe 1 connected to a high pressure pump (not shown) via a fuel pipe 2 is divided into two parts, a part 11 and a part 12 .
- the delivery pipe 1 may be divided into more than two.
- the parts 11 and 12 are coupled with each other to provide a connecting part therebetween which has the same diameter.
- a sealing member 6 such as an O-ring made of rubber is interposed between longitudinal ends of the parts 11 and 12 , so that the connecting part between the parts 11 and 12 has a flexibility.
- a fuel injector 4 is coupled with the delivery pipe 1 via a sealing member 3 such as an O-ring made of rubber and mounted on a cylinder head 5 for directly injecting fuel into an engine combustion chamber.
- the delivery pipe 1 is divided into three, parts 11 , 12 and 13 .
- the sealing member 6 is fitted in each connecting part defined by the longitudinal ends 11 a, 12 a and 13 a. It is also possible to divide it at every cylinder to absorb the deformation more and reduce the lessening of the sealing property to a minimum.
- the delivery pipe 1 is in a single pipe form for all the cylinders and has a plurality of extensions 1 a extending perpendicularly.
- a coupling member 7 shaped in a generally cylindrical form is fitted around a connecting part between the injector 4 and the delivery pipe 1 , and two sealing members 3 are inserted to provide two flexible sealing parts, one between the extension of the delivery pipe 1 and the injector 4 and the other between the coupling member 7 and the injector 4 .
- the connecting part between the delivery pipe 1 and the injector 4 are thus coupled flexibly with both of the delivery pipe 1 and the injector 4 , the deformation of the delivery pipe 1 can be distributed to a part between the coupling member 7 and the delivery pipe 1 and to a part between the connecting part 7 and the injector 4 as shown in FIG. 3B.
- the deformation of the delivery pipe 1 can be absorbed.
- fuel is restricted from leaking through the connecting part, and the sealing property can be restricted from being lessened.
- a cushioning member 8 having a sealing property is fitted between the injector 4 and the cylinder head 5 and is coupled flexibly.
- the flexing of the delivery pipe 1 can be absorbed by the cushioning member 8 , and the fuel is restricted from leaking through the fuel sealing part.
- a fuel passage 9 communicated with the fuel pipe 2 is provided to extend in the longitudinal direction in the cylinder head 5 , that is, in the direction in which the combustion chambers are arranged.
- a communication passage leading from the fuel passage 9 to the injector 4 is also provided in the cylinder head 5 .
- Two cushioning members 8 are fitted between the injector 4 and the cylinder head 5 .
- a connecting pipe 10 is positioned adjacent to the outside of the cylinder head 5 to lead fuel from the fuel passage 9 to the injector 4 .
- the sealing member 3 is fitted between the injector 3 and the connecting pipe 10
- the cushioning member 8 having the sealing property is fitted between the injector 4 and the cylinder head 5 .
- both of the injector 4 and the fuel passage 9 are provided in the same cylinder head 5 which has a sufficient rigidity.
- the fuel passage 9 does not flex and the thermal expansion of the cylinder head 5 does not influence on the fuel passage 9 .
- fuel leakage due to flexing of fuel passage can be obviated.
- the fuel is supplied to the injector 4 from the fuel passage 9 provided in the cylinder head 5 .
- the fuel is heated by the cylinder head 5 and then supplied to the injector 4 .
- the flexibility of sealing member 3 and the cushioning member 8 which have a remarkably lessened sealing property due to hardening under an extremely low temperature condition can be recovered quickly. This is very advantageous in preventing the fuel from leaking through the fuel sealing part.
- the fuel atomization is improved and a low temperature engine starting ability is improved greatly, because the fuel is heated by the cylinder head quickly.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
A delivery pipe of a fuel supply system for injectors mounted on a cylinder head is divided for each injector or a group of injectors. Divided pipe parts are coupled with each other through a flexible member to allow flexing of the delivery pipe. Each injector is connected with the delivery pipe through a flexible coupling member and with the cylinder head through a flexible cushioning member. Alternatively, a fuel passage is formed in the cylinder head in place of the delivery pipe to supply fuel to the injectors after heating in the cylinder head.
Description
- This application relates to and incorporates herein by reference Japanese patent application No. 10-290824 filed on Oct. 13, 1998.
- 1. Field of the Invention
- The present invention relates to a fuel supply system for internal combustion engines which has an improved fuel leakage restricting structure.
- 2. Related Art
- A cylinder direct injection type is proposed as an automotive vehicle gasoline internal combustion engine as shown in FIG. 6A to improve engine efficiency for environmental protection. In this system, a
fuel delivery pipe 1 is connected to a high pressure fuel pump (not shown) via afuel pipe 2. Afuel injector 4 for each cylinder is mounted on anengine cylinder head 5 so that fuel is directly injected into a combustion chamber. Theinjector 4 is coupled with thedelivery pipe 1 via a rubber sealing member such as an O-ring 3. A high pressure fuel injection is attained by theinjector 4 to improve fuel spray atomization. It is important to ensure sealing property in the fuel supply system. - The
rubber sealing member 3 fitted between thedelivery pipe 1 and theinjector 4 tends to change its sealing characteristics largely depending on changes in surrounding temperature. Further, thedelivery pipe 1 bows in response to the high fuel pressure by an amount of flexing δ as shown in FIG. 6(B). As a result, use of therubber sealing member 3 is limited by surrounding conditions (fuel pressure, temperature, etc.). - It is an object of the present invention to restrict fuel from leaking through a sealing part in a fuel supply system for internal combustion engines.
- According to a first aspect of the present invention, a delivery pipe is divided into a plurality parts and adjacent two of the pipe parts of the delivery pipe are coupled with each other at a connecting part having a substantially the same fuel passage diameter as that of the delivery pipe. A flexible sealing member is disposed in the connecting part.
- According to a second aspect of the present invention, a coupling member is provided between a delivery pipe and an injector so that the coupling member is coupled flexibly with both of the delivery pipe and the injectors.
- According to a third aspect of the present invention, a cushioning member having a sealing property is inserted between an injector and a cylinder head to couple the injector with the cylinder head flexibly.
- According to a fourth aspect of the present invention, a fuel passage communicated with a high pressure pump is formed in a cylinder head to supply fuel heated by the cylinder head to an injector.
- The above and other objects, features and advantages of the present invention will become more apparent from the following description made with reference to the accompanying drawings. In the drawings:
- FIG. 1A is a cross sectional view showing a fuel supply system directed to a four-cylinder engine according to a first embodiment of the present invention;
- FIG. 1B is a cross sectional view showing schematically the deformation of a delivery pipe in the first embodiment;
- FIG. 2 is a cross sectional view showing a fuel supply system directed to a six-cylinder engine according to a second embodiment of the present invention;
- FIG. 3A is a cross sectional view showing a fuel supply system according to a third embodiment of the present invention;
- FIG. 3B is a cross sectional view showing schematically the deformation of a delivery pipe in the third embodiment;
- FIG. 4 is a cross sectional view showing a fuel supply system according to a fourth embodiment of the present invention;
- FIG. 5 is a cross sectional view showing a fuel supply system according to a fifth embodiment of the present invention;
- FIG. 6A is a cross sectional view showing a conventional fuel supply system directed to a four-cylinder engine; and
- FIG. 6B is a cross sectional view showing schematically the deformation of a delivery pipe in the conventional fuel supply system.
- The present invention will be described in further detail with reference to various embodiments in which the same or similar parts are designated by the same or similar reference numerals.
- In the first embodiment directed to a four-cylinder internal combustion engine, as shown in FIG. 1A, a
delivery pipe 1 connected to a high pressure pump (not shown) via afuel pipe 2 is divided into two parts, apart 11 and apart 12. Thedelivery pipe 1 may be divided into more than two. Theparts member 6 such as an O-ring made of rubber is interposed between longitudinal ends of theparts parts fuel injector 4 is coupled with thedelivery pipe 1 via a sealingmember 3 such as an O-ring made of rubber and mounted on acylinder head 5 for directly injecting fuel into an engine combustion chamber. - Thus, as shown in FIG. 1B, the deformation in flexing due to bowing of the
delivery pipe 1 is absorbed at the part including the sealingmember 6. Therefore, the amount of deformation δ is reduced as opposed to the flexing of the single delivery pipe 1 (e.g., FIG. 6A). - In the second embodiment directed to a six-cylinder engine, as shown in FIG. 2, the
delivery pipe 1 is divided into three,parts member 6 is fitted in each connecting part defined by thelongitudinal ends - In the third embodiment, the
delivery pipe 1 is in a single pipe form for all the cylinders and has a plurality of extensions 1 a extending perpendicularly. As shown in FIG. 3A, acoupling member 7 shaped in a generally cylindrical form is fitted around a connecting part between theinjector 4 and thedelivery pipe 1, and two sealingmembers 3 are inserted to provide two flexible sealing parts, one between the extension of thedelivery pipe 1 and theinjector 4 and the other between thecoupling member 7 and theinjector 4. - Because the connecting part between the
delivery pipe 1 and theinjector 4 are thus coupled flexibly with both of thedelivery pipe 1 and theinjector 4, the deformation of thedelivery pipe 1 can be distributed to a part between thecoupling member 7 and thedelivery pipe 1 and to a part between the connectingpart 7 and theinjector 4 as shown in FIG. 3B. Thus, the deformation of thedelivery pipe 1 can be absorbed. As a result, fuel is restricted from leaking through the connecting part, and the sealing property can be restricted from being lessened. - Further, in the third embodiment, a cushioning
member 8 having a sealing property is fitted between theinjector 4 and thecylinder head 5 and is coupled flexibly. As a result, the flexing of thedelivery pipe 1 can be absorbed by the cushioningmember 8, and the fuel is restricted from leaking through the fuel sealing part. - In the fourth embodiment, as shown in FIG. 4, no delivery pipe is provided. Instead, a
fuel passage 9 communicated with thefuel pipe 2 is provided to extend in the longitudinal direction in thecylinder head 5, that is, in the direction in which the combustion chambers are arranged. A communication passage leading from thefuel passage 9 to theinjector 4 is also provided in thecylinder head 5. Twocushioning members 8 are fitted between theinjector 4 and thecylinder head 5. - In the fifth embodiment, as shown in FIG. 5, a connecting
pipe 10 is positioned adjacent to the outside of thecylinder head 5 to lead fuel from thefuel passage 9 to theinjector 4. The sealingmember 3 is fitted between theinjector 3 and the connectingpipe 10, and the cushioningmember 8 having the sealing property is fitted between theinjector 4 and thecylinder head 5. - In the fourth embodiment and the fifth embodiment, both of the
injector 4 and thefuel passage 9 are provided in thesame cylinder head 5 which has a sufficient rigidity. As a result, thefuel passage 9 does not flex and the thermal expansion of thecylinder head 5 does not influence on thefuel passage 9. Thus, fuel leakage due to flexing of fuel passage can be obviated. - Further, the fuel is supplied to the
injector 4 from thefuel passage 9 provided in thecylinder head 5. The fuel is heated by thecylinder head 5 and then supplied to theinjector 4. As a result, the flexibility of sealingmember 3 and the cushioningmember 8 which have a remarkably lessened sealing property due to hardening under an extremely low temperature condition can be recovered quickly. This is very advantageous in preventing the fuel from leaking through the fuel sealing part. - In addition, the fuel atomization is improved and a low temperature engine starting ability is improved greatly, because the fuel is heated by the cylinder head quickly.
- The present invention having been described above should not be limited to the disclosed embodiments, but may be modified in other ways without departing from the spirit of the invention.
Claims (10)
1. A fuel supply system for an internal combustion engine having a plurality of cylinders, the fuel supply system comprising:
injectors mounted on the engine for injecting fuel into the engine; and
a delivery pipe coupled with the injectors for supplying the fuel to the injectors, the delivery pipe including a plurality of pipe parts and a flexible connecting part connecting adjacent two of the pipe parts and having a substantially same fuel passage diameter as that of the pipe parts, and the connecting part being flexible to allow flexing of the pipe parts.
2. A fuel supply system of , wherein the injectors are mounted on a cylinder head of the engine for injecting the fuel into cylinders directly, and the flexible connecting part includes a sealing member made of a flexible material and disposed between longitudinally extending ends of the pipe parts.
claim 1
3. A fuel supply system for an internal combustion engine having a plurality of cylinders, the fuel supply system comprising:
an injector mounted on the engine for injecting fuel into each cylinder of the engine;
a delivery pipe coupled with the injector for supplying the fuel to the injector; and
a flexible connecting part fitted between the delivery pipe and the injector, the connecting part being coupled flexibly with both of the delivery pipe and the injector.
4. A fuel supply system of , wherein the connecting part includes a cylindrical flexible coupling member fitted around an extension of the delivery pipe and the injector and a plurality of flexible sealing members, one of the sealing members being disposed between the extension of the delivery pipe and the coupling member and another of the sealing members being disposed between the injector and the coupling member.
claim 3
5. A fuel supply system of , further comprising:
claim 3
a cushioning member made of a flexible sealing material and disposed between a cylinder head of the engine and the injector.
6. A fuel supply system for an internal combustion engine having a plurality of cylinders, the fuel supply system comprising:
an injector mounted on the engine for injecting fuel into each cylinder of the engine;
a delivery pipe coupled with the injector for supplying the fuel to the injector; and
a cushioning member made of a flexible sealing material and disposed between the injector and a cylinder head of the engine to couple the injector with the cylinder head flexibly.
7. A fuel supply system of , further comprising:
claim 6
a flexible connecting part fitted between the delivery pipe and the injector, the connecting part being coupled flexibly with both of the delivery pipe and the injector.
8. A fuel supply system for an internal combustion engine having a plurality of cylinders, the fuel supply system comprising:
an injector mounted on a cylinder head of the engine for injecting fuel into each cylinder of the engine directly; and
a fuel passage formed in the cylinder head for heating the fuel therein and supplying the heated fuel to the injector of each cylinder.
9. A fuel supply system of , further comprising:
claim 8
a flexible sealing member disposed between the cylinder head and the injector,
wherein the fuel passage is formed to be in direct fluid communication with the injector within the cylinder head.
10. A fuel supply system of , further comprising:
claim 8
a connecting pipe disposed outside of the cylinder head and connected to the injector and the fuel passage for supplying the heated fuel from the fuel passage to the injector.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/808,346 US20010010217A1 (en) | 1998-10-13 | 2001-03-15 | Fuel supply system for internal combustion engines having fuel leakage restricting structure |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10290824A JP2000120504A (en) | 1998-10-13 | 1998-10-13 | Fuel supply system of in-cylinder direct fuel injection type internal combustion engine |
JP10-290824 | 1998-10-13 | ||
US09/401,785 US6227169B1 (en) | 1998-10-13 | 1999-09-22 | Fuel supply system for internal combustion engines having fuel leakage restricting structure |
US09/808,346 US20010010217A1 (en) | 1998-10-13 | 2001-03-15 | Fuel supply system for internal combustion engines having fuel leakage restricting structure |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/401,785 Division US6227169B1 (en) | 1998-10-13 | 1999-09-22 | Fuel supply system for internal combustion engines having fuel leakage restricting structure |
Publications (1)
Publication Number | Publication Date |
---|---|
US20010010217A1 true US20010010217A1 (en) | 2001-08-02 |
Family
ID=17760967
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/401,785 Expired - Fee Related US6227169B1 (en) | 1998-10-13 | 1999-09-22 | Fuel supply system for internal combustion engines having fuel leakage restricting structure |
US09/808,346 Abandoned US20010010217A1 (en) | 1998-10-13 | 2001-03-15 | Fuel supply system for internal combustion engines having fuel leakage restricting structure |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/401,785 Expired - Fee Related US6227169B1 (en) | 1998-10-13 | 1999-09-22 | Fuel supply system for internal combustion engines having fuel leakage restricting structure |
Country Status (3)
Country | Link |
---|---|
US (2) | US6227169B1 (en) |
EP (1) | EP0994249A3 (en) |
JP (1) | JP2000120504A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008134160A1 (en) * | 2007-04-24 | 2008-11-06 | Lycoming Engines, A Division Of Avco Corporation | Modular fuel delivery assembly for an aircraft engine |
US20080295804A1 (en) * | 2007-06-01 | 2008-12-04 | Lycoming Engines, A Division Of Avco Corporation | Fuel delivery system for an aircraft engine |
US20110265766A1 (en) * | 2010-04-28 | 2011-11-03 | Aisan Kogyo Kabushiki Kaisha | Fuel delivery pipe |
US9038603B2 (en) | 2011-10-26 | 2015-05-26 | Toyota Jidosha Kabushiki Kaisha | Fastening structure of fuel delivery pipe and cylinder head of internal combustion engine |
US20180355828A1 (en) * | 2015-11-30 | 2018-12-13 | Mahle Metal Leve S/A | Fuel heating device having a heating device |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19936533A1 (en) * | 1999-08-03 | 2001-02-15 | Bosch Gmbh Robert | High pressure fuel accumulator |
JP3817643B2 (en) * | 1999-11-17 | 2006-09-06 | 株式会社ケーヒン | Fuel injection valve mounting device |
DE10045280C2 (en) * | 2000-09-13 | 2003-10-02 | Orange Gmbh | Heavy oil-operated large piston internal combustion engine |
DE10061873A1 (en) * | 2000-12-12 | 2002-06-27 | Orange Gmbh | Fuel storage tube for fuel injection system for multi-cylinder internal combustion engine is variably composed of modules, each module having a connection for a high pressure pump |
JP4032232B2 (en) * | 2002-09-18 | 2008-01-16 | 株式会社ケーヒン | Fuel distribution pipes in fuel injectors |
US6640784B1 (en) | 2002-10-09 | 2003-11-04 | Robert Bosch Corporation | Spark ignition direct injection system |
DE102004035648B4 (en) * | 2004-07-22 | 2009-01-29 | Benteler Automobiltechnik Gmbh | Fuel supply for a direct injection internal combustion engine |
DE102004035645B4 (en) * | 2004-07-22 | 2009-02-19 | Benteler Automobiltechnik Gmbh | Fuel supply for a direct injection internal combustion engine |
DE102004055266A1 (en) * | 2004-11-17 | 2006-05-18 | Robert Bosch Gmbh | Fuel injection system with multiple accumulators |
JP4592661B2 (en) * | 2006-08-31 | 2010-12-01 | 本田技研工業株式会社 | Fuel injection device |
JP5682787B2 (en) * | 2011-09-26 | 2015-03-11 | 株式会社デンソー | Fuel injection device |
JP5803791B2 (en) * | 2012-04-12 | 2015-11-04 | トヨタ自動車株式会社 | Ignition timing control device for internal combustion engine |
CA2819718C (en) * | 2013-06-27 | 2014-10-14 | Christopher Dicken | Split fuel rail assembly for an internal combustion engine |
DE102015203365A1 (en) * | 2015-02-25 | 2016-08-25 | Volkswagen Aktiengesellschaft | Fuel rail |
CN111894777A (en) * | 2020-06-30 | 2020-11-06 | 中国北方发动机研究所(天津) | Modular common rail pipe structure |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE892258C (en) * | 1950-04-25 | 1953-10-05 | Edmund Hagen | Leakage line for multi-cylinder vehicle internal combustion engines with injection nozzles |
GB778976A (en) * | 1955-04-25 | 1957-07-17 | P B Cow & Company Ltd | Improvements in or relating to flexible connectors for fuel supply pipes and the like |
DE2149817B2 (en) * | 1971-10-06 | 1975-08-21 | Daimler-Benz Ag, 7000 Stuttgart | Arrangement of a fuel injection valve for electronically controlled fuel injection into the intake duct of an internal combustion engine |
DE2827878A1 (en) * | 1978-06-24 | 1980-01-17 | Bosch Gmbh Robert | FUEL INJECTION VALVE |
IT1159857B (en) * | 1978-06-26 | 1987-03-04 | Fiat Spa | INTAKE MANIFOLD WITH FUEL INJECTORS FOR PETROL INJECTION INTERNAL COMBUSTION ENGINES |
JPS591106Y2 (en) * | 1978-07-28 | 1984-01-12 | 日産自動車株式会社 | Internal combustion engine fuel injection valve holding device |
DE2908095C2 (en) * | 1979-03-02 | 1984-02-16 | Robert Bosch Gmbh, 7000 Stuttgart | Fuel injection system for internal combustion engines |
AU559746B2 (en) * | 1981-11-04 | 1987-03-19 | Honda Giken Kogyo Kabushiki Kaisha | Injector mounting |
US4727843A (en) * | 1982-09-29 | 1988-03-01 | General Motors Corporation | Mounting retainer for electromagnetic fuel injector |
JPH0755329Y2 (en) | 1989-04-28 | 1995-12-20 | トヨタ自動車株式会社 | Fuel piping structure of internal combustion engine |
US5033435A (en) * | 1989-05-10 | 1991-07-23 | Navistar International Transportation Corp. | Fluid conduit system incorporating self-aligning fitting |
US5022371A (en) * | 1989-09-29 | 1991-06-11 | Siemens-Bendix Automotive Electronics L.P. | Molded plastic fuel rail for an internal combustion engine |
US5070844A (en) * | 1990-07-23 | 1991-12-10 | Siemens Automotive L.P. | Composite fuel rail socket for bottom- and side-feed fuel injectors |
JP2951071B2 (en) * | 1991-09-27 | 1999-09-20 | ヤマハ発動機株式会社 | Two-cycle multi-cylinder engine |
US5168856A (en) * | 1992-01-10 | 1992-12-08 | Siemens Automotive L.P. | Plastic fuel rail having integral guard wall for protecting an integral nipple or hose barb |
JP3298262B2 (en) * | 1993-10-13 | 2002-07-02 | 株式会社デンソー | Accumulation type fuel injection device |
JPH08246992A (en) * | 1995-03-10 | 1996-09-24 | Mitsubishi Motors Corp | Mounting structure of cylinder injection type injector |
JPH08312502A (en) | 1995-05-12 | 1996-11-26 | Mitsubishi Motors Corp | Fuel injection valve installation structure |
US5511527A (en) * | 1995-06-28 | 1996-04-30 | Siemens Automotive Corporation | Fuel rail assembly with crossover hose |
JP3632253B2 (en) | 1995-08-24 | 2005-03-23 | 日産自動車株式会社 | Direct injection internal combustion engine |
JPH09303226A (en) | 1996-05-10 | 1997-11-25 | Keihin Seiki Mfg Co Ltd | Fuel injection device for internal combustion engine |
US5682857A (en) * | 1996-10-01 | 1997-11-04 | Walbro Corporation | Fuel rail mounting clip |
JP3301354B2 (en) * | 1996-12-24 | 2002-07-15 | トヨタ自動車株式会社 | Fuel injection device |
US5752487A (en) * | 1997-06-11 | 1998-05-19 | Caterpillar Inc. | Injector combustion gas seal |
-
1998
- 1998-10-13 JP JP10290824A patent/JP2000120504A/en active Pending
-
1999
- 1999-09-22 US US09/401,785 patent/US6227169B1/en not_active Expired - Fee Related
- 1999-09-23 EP EP99118822A patent/EP0994249A3/en not_active Withdrawn
-
2001
- 2001-03-15 US US09/808,346 patent/US20010010217A1/en not_active Abandoned
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008134160A1 (en) * | 2007-04-24 | 2008-11-06 | Lycoming Engines, A Division Of Avco Corporation | Modular fuel delivery assembly for an aircraft engine |
US20090031992A1 (en) * | 2007-04-24 | 2009-02-05 | Lycoming Engines, A Division Of Avco Corporation | Fuel injector mounting assembly for an aircraft engine fuel delivery system |
US7802560B2 (en) | 2007-04-24 | 2010-09-28 | Lycoming Engines, A Division Of Avco Corporation | Fuel injector mounting assembly for an aircraft engine fuel delivery system |
US20080295804A1 (en) * | 2007-06-01 | 2008-12-04 | Lycoming Engines, A Division Of Avco Corporation | Fuel delivery system for an aircraft engine |
US7712452B2 (en) | 2007-06-01 | 2010-05-11 | Lycoming Engines, A Division Of Avco Corporation | Fuel delivery system for an aircraft engine |
US20110265766A1 (en) * | 2010-04-28 | 2011-11-03 | Aisan Kogyo Kabushiki Kaisha | Fuel delivery pipe |
US9038603B2 (en) | 2011-10-26 | 2015-05-26 | Toyota Jidosha Kabushiki Kaisha | Fastening structure of fuel delivery pipe and cylinder head of internal combustion engine |
US20180355828A1 (en) * | 2015-11-30 | 2018-12-13 | Mahle Metal Leve S/A | Fuel heating device having a heating device |
Also Published As
Publication number | Publication date |
---|---|
JP2000120504A (en) | 2000-04-25 |
EP0994249A2 (en) | 2000-04-19 |
EP0994249A3 (en) | 2004-04-07 |
US6227169B1 (en) | 2001-05-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20010010217A1 (en) | Fuel supply system for internal combustion engines having fuel leakage restricting structure | |
KR100890577B1 (en) | Dual-system fuel injection engine | |
WO1999000595A3 (en) | Fuel injection system | |
US20070113828A1 (en) | Fuel injector isolating and sealing member | |
US6405711B1 (en) | Fuel delivery module for fuel injected internal combustion engines | |
JPH0754724A (en) | Intake pipe for internal combustion engine with arcuate intake pipe of separate cylinder | |
US6073612A (en) | Delivery pipe for an internal combustion engine | |
US7261089B2 (en) | Fuel injector nozzle seal | |
US20110023818A1 (en) | Common rail fuel system with integrated diverter | |
US6314946B1 (en) | Fuel injection system for diesel engines | |
US6000380A (en) | Fuel injection for a multicylinder internal combustion engine | |
JP3871016B2 (en) | Fuel injector mounting structure for in-cylinder injection engine | |
US5884607A (en) | Fuel delivery system for a vehicle | |
US20050109323A1 (en) | Fuel rail crossover hose | |
JP2003514171A (en) | Fuel injection system with constant relief oil pressure in the injector for internal combustion engines | |
KR20030013473A (en) | Fuel injection unit | |
JPH10184927A (en) | Seal device | |
KR101861002B1 (en) | Fuel rail assembly for vehicle | |
EP1475531A3 (en) | Direct injection type internal combustion engine | |
US6260538B1 (en) | Fuel system | |
CN214836820U (en) | Internal combustion engine structure | |
US9976527B1 (en) | Fuel injector assembly having sleeve for directing fuel flow | |
JP2000170623A (en) | Mounting structure of delivery pipe in internal combustion engine | |
US20040124276A1 (en) | Fuel injection valve | |
JP2001090630A (en) | Fuel supply device for cylinder injection type engine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |