EP1141524A1 - Roller tappet - Google Patents
Roller tappetInfo
- Publication number
- EP1141524A1 EP1141524A1 EP99963347A EP99963347A EP1141524A1 EP 1141524 A1 EP1141524 A1 EP 1141524A1 EP 99963347 A EP99963347 A EP 99963347A EP 99963347 A EP99963347 A EP 99963347A EP 1141524 A1 EP1141524 A1 EP 1141524A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- locking ring
- axis
- tappet
- base body
- 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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/14—Tappets; Push rods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2305/00—Valve arrangements comprising rollers
- F01L2305/02—Mounting of rollers
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/21—Elements
- Y10T74/2101—Cams
- Y10T74/2107—Follower
Definitions
- the invention relates to a roller tappet according to the preamble of claim 1.
- roller tappets are such. B. from US 5,385,124 A.
- the roller axis is secured there using circlips that are located in grooves within the roller hubs.
- the invention is therefore concerned with the problem of securing the axle on which the roller is mounted in a simple manner in the hub bores in the case of generic roller tappets.
- the main body of the plunger can consist of two or more components connected to one another.
- the flanks of the locking ring no longer act as a contact surface for the roller axis, but rather the radially inner regions of the locking ring.
- roller axle according to the invention By securing the roller axle according to the invention with retaining rings which are located in grooves which are introduced on the outside diameter of the roller tappet, processing costs are saved and only one - but larger - retaining ring is required. Another advantage is that only one groove has to be pierced.
- the securing ring according to the invention does not have to lie in a plane that includes the longitudinal axis of the roller axis, as seen in the axial direction of the tappet, but it can also lie above or below this plane. It is sufficient if the roller axis runs against the locking ring from the inside during a shift in the roller hub. Due to the off-center position of the locking ring, the length of the roller axis and thus the load-bearing length can be increased again.
- Fig. 1 shows a roller tappet according to the invention in cross section, cut in the direction of the roller axis
- Fig. 2 shows a roller tappet according to the invention in cross section, cut transversely to the roller axis.
- the roller tappet 1 consists of a base body 2, a roller axis 3 and a roller 4.
- the base body 2 has hubs 5 in which the roller axis 3 is mounted. At the level of the hub center, a groove is screwed into the base body 2, in which a locking ring 6 is located.
- the roller axle 3 is freely rotatably supported in the hubs 5. In the event of an axial displacement of the roller axis 3 in the hubs, it runs against the radially inner surface of the retaining ring. The axial displacement of the roller axis 3 is thus limited by the locking ring 6.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Rolling Contact Bearings (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19857376 | 1998-12-12 | ||
DE19857376A DE19857376A1 (en) | 1998-12-12 | 1998-12-12 | Roller plunger |
PCT/EP1999/009306 WO2000036282A1 (en) | 1998-12-12 | 1999-11-30 | Roller tappet |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1141524A1 true EP1141524A1 (en) | 2001-10-10 |
EP1141524B1 EP1141524B1 (en) | 2003-04-02 |
Family
ID=7890859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99963347A Expired - Lifetime EP1141524B1 (en) | 1998-12-12 | 1999-11-30 | Roller tappet |
Country Status (5)
Country | Link |
---|---|
US (1) | US6405698B1 (en) |
EP (1) | EP1141524B1 (en) |
BR (1) | BR9916167A (en) |
DE (2) | DE19857376A1 (en) |
WO (1) | WO2000036282A1 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7318539B2 (en) * | 2003-04-28 | 2008-01-15 | Power Sprayer Llc | Pump drive unit for battery operated fluid dispensers |
WO2005068822A1 (en) * | 2004-01-14 | 2005-07-28 | Bosch Corporation | Fuel supply pump and tappet structure body |
US7497145B2 (en) * | 2005-12-28 | 2009-03-03 | Belvac Production Machinery, Inc. | Preloaded-cam follower arrangement |
DE102006045933A1 (en) * | 2006-09-28 | 2008-04-03 | Robert Bosch Gmbh | Plunger assembly for a high pressure pump and high pressure pump with at least one plunger assembly |
DE102007006320A1 (en) * | 2007-02-08 | 2008-08-14 | Schaeffler Kg | Mechanical roller tappet for an internal combustion engine |
US7568461B1 (en) * | 2008-06-20 | 2009-08-04 | Gm Global Technology Operations, Inc. | Tappet roller end shape for improved lubrication and combination with fuel pump and engine |
JP2010037997A (en) * | 2008-08-01 | 2010-02-18 | Denso Corp | Fuel supply pump |
JP5496696B2 (en) * | 2010-01-27 | 2014-05-21 | Ntn株式会社 | Tappet for pump |
DE102010019982A1 (en) * | 2010-05-10 | 2011-11-10 | Schaeffler Technologies Gmbh & Co. Kg | roller plunger |
EP2853698B1 (en) * | 2013-09-27 | 2016-06-01 | Aktiebolaget SKF | Cam follower, injection pump and valve actuator comprising such a cam follower and manufacturing method |
EP3002424A1 (en) * | 2014-09-30 | 2016-04-06 | Aktiebolaget SKF | Mechanical system forming a cam follower or a rocker arm |
US9863382B2 (en) | 2016-05-25 | 2018-01-09 | Hangzhou Xzb Tech Co., Ltd | High pressure oil pump roller tappet |
US10113584B2 (en) * | 2016-09-30 | 2018-10-30 | Schaeffler Technologies AG & Co. KG | Roller finger follower having a bearing sleeve for a floating axle |
CN107882607B (en) * | 2017-12-14 | 2024-03-12 | 杭州新坐标科技股份有限公司 | Split cup-shaped valve tappet |
CN111749826A (en) * | 2019-03-26 | 2020-10-09 | 罗伯特·博世有限公司 | Roller tappet for high-pressure fuel pump |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3618240A1 (en) | 1986-05-30 | 1987-12-03 | Kloeckner Humboldt Deutz Ag | Lifting appliance |
DE4225363A1 (en) * | 1992-07-31 | 1994-02-03 | Bosch Gmbh Robert | Fuel injection pump for internal combustion engines |
US5385124A (en) * | 1994-05-31 | 1995-01-31 | Eaton Corporation | Roller follower axle |
DE19527720A1 (en) * | 1995-07-31 | 1997-02-06 | Woodward Governor Germany Gmbh | Procedure for changing the start of delivery of fuel injection pumps and fuel injection pump |
-
1998
- 1998-12-12 DE DE19857376A patent/DE19857376A1/en not_active Withdrawn
-
1999
- 1999-11-30 BR BR9916167-2A patent/BR9916167A/en not_active IP Right Cessation
- 1999-11-30 DE DE59904889T patent/DE59904889D1/en not_active Expired - Lifetime
- 1999-11-30 WO PCT/EP1999/009306 patent/WO2000036282A1/en active IP Right Grant
- 1999-11-30 EP EP99963347A patent/EP1141524B1/en not_active Expired - Lifetime
- 1999-11-30 US US09/857,919 patent/US6405698B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0036282A1 * |
Also Published As
Publication number | Publication date |
---|---|
US6405698B1 (en) | 2002-06-18 |
WO2000036282A1 (en) | 2000-06-22 |
EP1141524B1 (en) | 2003-04-02 |
BR9916167A (en) | 2001-09-04 |
DE19857376A1 (en) | 2000-06-15 |
DE59904889D1 (en) | 2003-05-08 |
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