WO2001034971A2 - Federnde buchse, insbesondere für einspritzventile an otto-motoren - Google Patents
Federnde buchse, insbesondere für einspritzventile an otto-motoren Download PDFInfo
- Publication number
- WO2001034971A2 WO2001034971A2 PCT/DE2000/003862 DE0003862W WO0134971A2 WO 2001034971 A2 WO2001034971 A2 WO 2001034971A2 DE 0003862 W DE0003862 W DE 0003862W WO 0134971 A2 WO0134971 A2 WO 0134971A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- socket
- socket according
- injection valves
- bushing
- resilient sleeve
- Prior art date
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
- 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 resilient bushing, in particular for use with injection valves on Otto engines according to the preamble of claim 1.
- Injectors on petrol engines are usually attached to the cylinder head by claws or union nuts.
- the disadvantage here is that there is almost always an unevenly distributed contact pressure. This results in sealing problems.
- the necessarily and inevitably occurring temperature changes and uneven temperature distributions also lead to considerable problems in the prior art described above.
- the object of the invention is to create a bushing which can be used as an intermediate element and with which the deviations from predetermined setpoints resulting from temperature changes, unequal temperature distribution and manufacturing-related tolerances can be compensated for with little effort.
- Such a bushing designed as a spring element, is on the one hand able to generate high, defined clamping forces and, on the other hand, compensate for shape errors and deviations from the target values between the two contact surfaces of the bushing, without otherwise impairing the function.
- FIG. 1 is a side view according to I-I in Fig. 2 of an essentially circular resilient bush according to the invention, which extends over a circumference of about 270 °,
- Fig. 3 is a side view of the resilient socket according to III-III in Fig. 2 and finally
- Fig. 4 is a settlement of such a resilient socket
- the resilient bushing 10 shown in FIG. 1 is placed on one level with its support surface 11 which runs in one plane and which lies on the right edge in this FIG. 1. If such a socket for an injection valve comes on one
- the socket 10 is inserted with its flat bearing surface 11 in a corresponding cylindrical bore of the cylinder head.
- the other end 12 of the resilient bush 10, shown on the left in FIG. 1, is supported on a second surface which, in the case of an Otto engine with fuel injection, can represent a so-called “rail” (fuel distributor pipe).
- the jacket of the resilient bush 10 preferably extends over a circumferential angle of approximately 270 °. This leaves an opening angle of approximately 90 ° of the circumference.
- this opening angle enables a relatively high flexibility of the bushing in the circumferential direction. tung. It can be expanded or reduced to a certain extent in its diameter with the appropriate effort.
- the opening angle enables the fuel and electrical connections for the injection valve to enter from the side.
- the resilient bushing 10 has two such windows 13, which are diametrically opposite in the y-axis, with an arcuate upper end.
- Such a resilient bush 10 can be produced in an extremely simple manner from a suitable flat material.
- the blank of the bushing then initially has the shape according to FIG. 4.
- a socket 10 described above is produced with a substantially circular circumference.
- the resilient bush then extends - as described above - over a circumferential angle of approximately 270 °.
- the socket 10 can be produced with only a small amount of production work and replaces a large number of individual parts which were previously required. This results in considerable advantages, particularly in modern assembly line technology.
- the arcs 15 lying in the y-axis have resilient properties.
- error angles ⁇ lying approximately in the y-axis can be compensated for by slight deformations of one or the other arc 15 of the bushing 10.
- the softness and thus the spring action of the arches 15 can be influenced by a second, smaller arch 15a.
- corrections in the effective diameter of the bushing 10 can also be made by elastic deformations.
- the effective diameter is reduced by elastically compressing the sleeve wall. When the corresponding forces decrease, the diameter widens again.
- the flat blank of the bushing shown in FIG. 4 can be produced in large series in one operation from flat material.
- the socket 10 which can be produced with little effort, exhibits properties which are comparable to those of a considerably more complex cardan joint.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Springs (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00984880A EP1228305B1 (de) | 1999-11-06 | 2000-11-03 | Federnde buchse, insbesondere für einspritzventile an otto-motoren |
DE50009505T DE50009505D1 (de) | 1999-11-06 | 2000-11-03 | Federnde buchse, insbesondere für einspritzventile an otto-motoren |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19953269A DE19953269C2 (de) | 1999-11-06 | 1999-11-06 | Federnde Buchse, insbesondere für Einspritzventile an Otto-Motoren |
DE19953269.9 | 1999-11-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001034971A2 true WO2001034971A2 (de) | 2001-05-17 |
WO2001034971A3 WO2001034971A3 (de) | 2001-11-29 |
Family
ID=7928019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/003862 WO2001034971A2 (de) | 1999-11-06 | 2000-11-03 | Federnde buchse, insbesondere für einspritzventile an otto-motoren |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1228305B1 (de) |
CN (1) | CN1211576C (de) |
DE (2) | DE19953269C2 (de) |
WO (1) | WO2001034971A2 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004048401A1 (de) * | 2004-10-01 | 2006-04-06 | Robert Bosch Gmbh | Niederhalter für eine Brennstoffeinspritzvorrichtung und Brennstoffeinspritzvorrichtung |
DE102008028371B4 (de) * | 2008-06-13 | 2020-10-08 | Schaeffler Technologies AG & Co. KG | Toleranzring |
JP2018172972A (ja) * | 2017-03-31 | 2018-11-08 | 本田技研工業株式会社 | 燃料噴射弁の取付構造 |
US11572825B1 (en) | 2021-12-29 | 2023-02-07 | Garrett Transportation I Inc. | Turbocharger flexible bearing cartridge assembly |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4296887A (en) * | 1978-09-15 | 1981-10-27 | Robert Bosch Gmbh | Heat protected fuel injection plug for internal combustion engines |
GB2177450A (en) * | 1985-06-27 | 1987-01-21 | Lucas Ind Plc | Clamping device for fuel injection nozzle |
EP0398160A2 (de) * | 1989-05-17 | 1990-11-22 | Siemens Aktiengesellschaft | Lichtwellenleiter-Steckverbinder mit einer in eine Schutzhülse eingesetzten Führungsbuchse |
US5363825A (en) * | 1993-01-27 | 1994-11-15 | Volkswagen Ag | Fuel injection arrangement for an internal combustion engine having a plurality of electric fuel injection valves |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8005988U1 (de) * | 1980-05-29 | Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt | Gleithülse | |
DE4114643C2 (de) * | 1991-05-04 | 1995-12-21 | Schaeffler Waelzlager Kg | Wälzlager, insbesondere für Lenksäulen |
DE19518670C2 (de) * | 1995-05-20 | 2003-08-28 | Fag Kugelfischer Ag & Co Kg | Wälzlager mit integriertem elastischem Element |
DE29515488U1 (de) * | 1995-09-28 | 1995-11-30 | Volkswagen Ag | Stützlagerelement |
-
1999
- 1999-11-06 DE DE19953269A patent/DE19953269C2/de not_active Expired - Fee Related
-
2000
- 2000-11-03 EP EP00984880A patent/EP1228305B1/de not_active Expired - Lifetime
- 2000-11-03 CN CNB008152195A patent/CN1211576C/zh not_active Expired - Lifetime
- 2000-11-03 DE DE50009505T patent/DE50009505D1/de not_active Expired - Lifetime
- 2000-11-03 WO PCT/DE2000/003862 patent/WO2001034971A2/de active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4296887A (en) * | 1978-09-15 | 1981-10-27 | Robert Bosch Gmbh | Heat protected fuel injection plug for internal combustion engines |
GB2177450A (en) * | 1985-06-27 | 1987-01-21 | Lucas Ind Plc | Clamping device for fuel injection nozzle |
EP0398160A2 (de) * | 1989-05-17 | 1990-11-22 | Siemens Aktiengesellschaft | Lichtwellenleiter-Steckverbinder mit einer in eine Schutzhülse eingesetzten Führungsbuchse |
US5363825A (en) * | 1993-01-27 | 1994-11-15 | Volkswagen Ag | Fuel injection arrangement for an internal combustion engine having a plurality of electric fuel injection valves |
Also Published As
Publication number | Publication date |
---|---|
EP1228305B1 (de) | 2005-02-09 |
EP1228305A2 (de) | 2002-08-07 |
WO2001034971A3 (de) | 2001-11-29 |
DE19953269A1 (de) | 2001-06-07 |
CN1387608A (zh) | 2002-12-25 |
DE50009505D1 (de) | 2005-03-17 |
DE19953269C2 (de) | 2001-12-13 |
CN1211576C (zh) | 2005-07-20 |
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