EP1366285A1 - Fastening device - Google Patents
Fastening deviceInfo
- Publication number
- EP1366285A1 EP1366285A1 EP02719641A EP02719641A EP1366285A1 EP 1366285 A1 EP1366285 A1 EP 1366285A1 EP 02719641 A EP02719641 A EP 02719641A EP 02719641 A EP02719641 A EP 02719641A EP 1366285 A1 EP1366285 A1 EP 1366285A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hold
- cylinder head
- fastening device
- injection valve
- fuel injection
- 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.)
- Granted
Links
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
Definitions
- the invention relates to a fastening device for fastening a fuel injection valve according to the preamble of the main claim.
- a disadvantage of the fastening device known from DE 29 26 490 C2 is, in particular, the bracing effect of the various fasteners on the fuel injector.
- the force flow generated in the fuel injector leads to deformations and thus to changes in the stroke of the valve needle up to jamming and to a pressure or bending load on the housing parts, which are generally thin-walled and welded to one another at several points.
- each fastening measure leads, for example, to an increase in the radial expansion of the fuel injection valve, and thus to an increased space requirement during installation, due to a support collar.
- Fuel injector has a collar or shoulder attached to it at an injection-side end, on which a flexible hold-down device engages, which completely or partially encompasses the end of the fuel injector, as a result of which the fuel injector is held down in the cylinder head.
- a flexible hold-down device engages, which completely or partially encompasses the end of the fuel injector, as a result of which the fuel injector is held down in the cylinder head.
- hold-down devices can be produced simply by punching from sheet metal and are suitable both for individual fuel injection valves and for row arrangements of fuel injection valves.
- the hold-down devices are advantageously fixed in a simple manner to the end face of the cylinder head by screws or clamping claws. Another advantage is that the hold-down is shaped in the form of a hold-down pot that the
- Fuel injector in the mounting hole of the cylinder head gives greater stability.
- Another advantage is the formation of slits and elastic tabs at the end of the hold-down pot, which allow quick and easy assembly and disassembly of the fuel injector.
- the fastening device can be installed in almost every mounting hole in a cylinder head and can therefore also be used as an adapter if the bore cross-sections are too large.
- Fig. 1 is a schematic view of a first embodiment of an inventive fastening device for a
- 2A-B are each a schematic plan view of the fastening device designed according to the invention.
- FIG. 3 shows a schematic plan view of a second exemplary embodiment of a fastening device according to the invention
- Fig. 4 is a schematic sectional view of the fastening device shown in Fig.
- And 5 shows a schematic view of the fastening process of a fuel injector with the fastening device shown in FIGS. 3 and 4.
- FIG. 1 shows a highly schematic partial section through a first exemplary embodiment of a fastening device for a fuel injector designed according to the invention.
- a fuel injector 1 is designed in the form of a direct-injection fuel injector 1, which is installed in a cylinder head 2 for the direct injection of fuel into a combustion chamber of a mixture compression-ignition internal combustion engine, not shown, in particular.
- the fuel injection valve 1 has a connection to a fuel feed line 4 at an inlet-side end 3.
- the fuel injector 1 has a connection 5 for the electrical contact for actuating the fuel injector 1.
- a shoulder 7 is formed, which bears against a wall 8 of a receiving bore 9 of the cylinder head 2.
- the shoulder 7 can be produced, for example, by turning, or a spherical shape can be attached to the outflow-side end 6 of the fuel injection valve 1 by means of welding, as a result of which good guidance is also achieved in the receiving bore 9.
- a fastening device 10 is provided according to the invention.
- The. Fastening device 10 consists of a hold-down device 11, which in the present first exemplary embodiment is formed in two parts and rests on the outflow end 6 of the fuel injector 1.
- the hold-down devices 11 are preferably punched out of sheet metal, for example.
- the hold-down devices 11 are supported on the shoulder 7 formed on the outflow end 6 of the fuel injection valve 1.
- the hold-down devices 11 are with side parts 16 on an end face 12 of the cylinder head 2 either, as shown in FIG. 1 on the left, by means of a screw 13 screwed into the cylinder head 2, or, as shown in FIG. 1 on the right, by means of a likewise on the end face 12 of the cylinder head 2 attached claw 14 attached.
- the latter is characterized by easier assembly, since there is no need for a hole in the hold-down device 11.
- the preferred form of the hold-down device 11 is chosen so that the side parts 16 are fixed on the end face 12 of the cylinder head 2, which results in a spring action which presses the fuel injector 1 via the shoulder 7 into the receiving bore 9 in the cylinder head 2.
- the axial stability of the fuel injection valve 1 is achieved on the one hand by guiding the fuel line 4, and on the other hand by partially enclosing the hold-down device 11 in the region of the downstream end 6 of the fuel injection valve 1.
- FIGS. 2A and 2B represent a schematic plan view of two variants of the fastening device 10 of the fuel injector 1 according to the invention.
- the same components are provided with the same reference numerals in all the figures.
- FIGS. 2A and 2B show a symmetrical pair of hold-down devices 11, which are used to fasten a single fuel injector 1, while FIG. 2B takes into account a possible row arrangement of several fuel injector 1, in that adjacent hold-down devices 11 are made in one piece for easier fastening and further stabilization ,
- FIG. 3 shows a schematic top view of a second exemplary embodiment of a fastening device 10 for a fuel injector 1 designed according to the invention.
- the second embodiment described in FIG. 3 is formed in one piece or in a pot shape.
- a hold-down pot 17 in turn has two side parts 16 with bores 15 ' for fastening the hold-down pot 17 to the end face 12 of the cylinder head 2.
- a recess 18 serves for the passage of the electrical line (not shown) for actuating the fuel injection valve 1.
- Such a hold-down pot 17 can be produced, for example, by deep drawing.
- the hold-down pot 17 has, as illustrated in FIG. 4, a plurality of stages 20.
- FIG. 5 shows a schematic view of the fastening process of a fuel injection valve 1 in FIG the fastening device 10 shown in FIGS. 3 and 4.
- the holding-down pot 17 can be fastened, as in the first exemplary embodiment, by means of screws 13, which are guided through the bores 15, or by means of clamps 14.
- the invention is not limited to the exemplary embodiment shown and can also be used, for example, for fuel injection valves 1 for injection into the combustion chamber of a self-igniting internal combustion engine.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06117773A EP1722099B1 (en) | 2001-02-28 | 2002-02-27 | Fastening device |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10109408A DE10109408A1 (en) | 2001-02-28 | 2001-02-28 | fastening device |
DE10109408 | 2001-02-28 | ||
PCT/DE2002/000696 WO2002068815A1 (en) | 2001-02-28 | 2002-02-27 | Fastening device |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06117773A Division EP1722099B1 (en) | 2001-02-28 | 2002-02-27 | Fastening device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1366285A1 true EP1366285A1 (en) | 2003-12-03 |
EP1366285B1 EP1366285B1 (en) | 2006-11-02 |
Family
ID=7675651
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02719641A Expired - Lifetime EP1366285B1 (en) | 2001-02-28 | 2002-02-27 | Fastening device |
EP06117773A Expired - Lifetime EP1722099B1 (en) | 2001-02-28 | 2002-02-27 | Fastening device |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06117773A Expired - Lifetime EP1722099B1 (en) | 2001-02-28 | 2002-02-27 | Fastening device |
Country Status (7)
Country | Link |
---|---|
US (1) | US6772736B2 (en) |
EP (2) | EP1366285B1 (en) |
JP (1) | JP2004518863A (en) |
CN (1) | CN1457393A (en) |
CZ (1) | CZ20023489A3 (en) |
DE (3) | DE10109408A1 (en) |
WO (1) | WO2002068815A1 (en) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10140797A1 (en) * | 2001-08-20 | 2003-07-31 | Bosch Gmbh Robert | Compensation element for a fuel injector |
JP3997946B2 (en) * | 2002-07-26 | 2007-10-24 | 株式会社デンソー | Fuel supply device |
DE10256668A1 (en) | 2002-12-04 | 2004-07-29 | Robert Bosch Gmbh | support element |
DE10338715B4 (en) * | 2003-08-22 | 2014-07-17 | Robert Bosch Gmbh | Compensation element for a fuel injection valve |
DE102004055317A1 (en) | 2004-11-16 | 2006-05-24 | Bosch Rexroth Aktiengesellschaft | Electric induction machine and primary section |
EP2187039B1 (en) * | 2005-03-03 | 2014-05-07 | Robert Bosch GmbH | Fuel injection system |
US7469680B2 (en) * | 2005-09-30 | 2008-12-30 | Caterpillar Inc. | Fluid system having quill-mounted manifold |
DE102006019306A1 (en) * | 2006-04-26 | 2007-10-31 | Robert Bosch Gmbh | Fastener for fuel injector of e.g. common rail injection system, has bearing surface formed at inner edge of fastener that is implemented as locking bracket, where latch overlapping injector body is implemented in inner edge of bracket |
DE102006056704A1 (en) * | 2006-11-30 | 2008-06-05 | Robert Bosch Gmbh | Fuel injector and fuel injection system |
EP1967728B1 (en) * | 2007-03-08 | 2009-10-14 | Continental Automotive GmbH | Coupling device and fuel supply arrangement |
EP2199592B1 (en) * | 2007-05-31 | 2011-10-12 | Continental Automotive GmbH | Fixing device for fixing a fuel injector in a cylinder head of a combustion engine |
DE102007035714A1 (en) * | 2007-07-30 | 2009-02-05 | Robert Bosch Gmbh | Fuel injection system with compensation element |
JP4937891B2 (en) * | 2007-11-30 | 2012-05-23 | 愛三工業株式会社 | Fuel supply device |
JP5408010B2 (en) * | 2010-04-08 | 2014-02-05 | 株式会社デンソー | High pressure pump |
US20110265767A1 (en) * | 2010-05-03 | 2011-11-03 | Delphi Technologies, Inc. | Isolater for fuel injector |
WO2012054601A2 (en) * | 2010-10-20 | 2012-04-26 | Illinois Tool Works Inc. | Fuel injector bracket assembly |
US9109563B2 (en) * | 2011-03-31 | 2015-08-18 | Denso International America, Inc. | Cradled fuel injector mount assembly |
DE102011084064A1 (en) * | 2011-10-06 | 2013-04-11 | Schaeffler Technologies AG & Co. KG | Downholder for a fuel injector |
US8424509B1 (en) * | 2011-10-28 | 2013-04-23 | Continental Automotive Systems Us, Inc. | Fuel injector cup rotation limiting structure for an isolated fuel rail system |
CN103527375B (en) * | 2013-09-22 | 2016-03-09 | 安徽中鼎动力有限公司 | A kind of oil sprayer pressing sleeve device of two-cycle engine |
JP6256918B2 (en) * | 2014-09-30 | 2018-01-10 | 本田技研工業株式会社 | Injector assembly |
DE102015001614A1 (en) * | 2015-02-07 | 2016-08-11 | Neander Motors Ag | Device for fixing at least one fuel injection nozzle |
DE102016225695A1 (en) * | 2016-12-21 | 2018-06-21 | Robert Bosch Gmbh | Arrangement with at least one valve and a holder |
WO2019111031A1 (en) * | 2017-12-08 | 2019-06-13 | Volvo Truck Corporation | A device for a common rail fuel injection system |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4133321A (en) * | 1972-12-21 | 1979-01-09 | Robert Bosch Gmbh | Clamping device for fuel injection nozzles |
US4066213A (en) * | 1976-04-16 | 1978-01-03 | Deere & Company | Fuel injection nozzle assembly |
DE2926490A1 (en) | 1979-06-30 | 1981-02-05 | Bosch Gmbh Robert | FUEL INJECTION SYSTEM |
IN159427B (en) * | 1982-11-27 | 1987-05-16 | Perkins Engines Group | |
DE3406487A1 (en) * | 1984-02-23 | 1985-08-29 | Bayerische Motoren Werke AG, 8000 München | INJECTION VALVE FOR MIX-COMPRESSIVE COMBUSTION ENGINES, ESPECIALLY FOR SINGLE SUCTION PIPE INJECTION |
US5121731A (en) * | 1991-06-20 | 1992-06-16 | Siemens Automotive L.P. | Means for mounting a fuel injector on a fuel rail |
US5706786A (en) * | 1994-12-28 | 1998-01-13 | Cummins Engine Company, Inc. | Distortion reducing load ring for a fuel injector |
JPH08312503A (en) | 1995-03-10 | 1996-11-26 | Mitsubishi Motors Corp | Installation structure of fixed object, especially, of injector for cylinder injection type internal combustion engine |
DE19511703A1 (en) * | 1995-03-30 | 1996-10-02 | Bayerische Motoren Werke Ag | Device for fastening an injection nozzle, in particular to the cylinder head of an internal combustion engine |
DE59608090D1 (en) * | 1996-02-12 | 2001-12-06 | Mann & Hummel Filter | INTAKE SYSTEM |
JP3765132B2 (en) * | 1996-09-06 | 2006-04-12 | 日産自動車株式会社 | Fuel injection nozzle fixing device in direct injection diesel engine |
FR2763649B1 (en) | 1997-05-20 | 1999-06-25 | Peugeot | DEVICE FOR FIXING A FUEL INJECTOR ON A CYLINDER HEAD OF AN INTERNAL COMBUSTION ENGINE, AND A METHOD FOR MOUNTING THIS INJECTOR |
DE19735665A1 (en) | 1997-06-25 | 1999-01-07 | Bosch Gmbh Robert | Fuel injection system |
JP2000145580A (en) * | 1998-11-11 | 2000-05-26 | Isuzu Motors Ltd | Fixing structure of injector |
DE19857485A1 (en) * | 1998-12-14 | 2000-06-15 | Bosch Gmbh Robert | Assembly device for assembling and disassembling a fuel injector |
JP3871016B2 (en) * | 2000-05-22 | 2007-01-24 | スズキ株式会社 | Fuel injector mounting structure for in-cylinder injection engine |
-
2001
- 2001-02-28 DE DE10109408A patent/DE10109408A1/en not_active Withdrawn
-
2002
- 2002-02-27 WO PCT/DE2002/000696 patent/WO2002068815A1/en active IP Right Grant
- 2002-02-27 US US10/275,053 patent/US6772736B2/en not_active Expired - Fee Related
- 2002-02-27 DE DE50213305T patent/DE50213305D1/en not_active Expired - Lifetime
- 2002-02-27 CN CN02800451.5A patent/CN1457393A/en active Pending
- 2002-02-27 CZ CZ20023489A patent/CZ20023489A3/en unknown
- 2002-02-27 EP EP02719641A patent/EP1366285B1/en not_active Expired - Lifetime
- 2002-02-27 DE DE50208596T patent/DE50208596D1/en not_active Expired - Lifetime
- 2002-02-27 EP EP06117773A patent/EP1722099B1/en not_active Expired - Lifetime
- 2002-02-27 JP JP2002567695A patent/JP2004518863A/en not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO02068815A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1722099B1 (en) | 2009-02-18 |
CN1457393A (en) | 2003-11-19 |
WO2002068815A1 (en) | 2002-09-06 |
EP1722099A3 (en) | 2006-11-29 |
EP1722099A2 (en) | 2006-11-15 |
DE50208596D1 (en) | 2006-12-14 |
DE50213305D1 (en) | 2009-04-02 |
US6772736B2 (en) | 2004-08-10 |
DE10109408A1 (en) | 2002-09-05 |
US20030154961A1 (en) | 2003-08-21 |
EP1366285B1 (en) | 2006-11-02 |
JP2004518863A (en) | 2004-06-24 |
CZ20023489A3 (en) | 2004-05-12 |
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