Internal-combustion engines – Poppet valve operating mechanism – Rocker
Reexamination Certificate
2008-11-03
2011-10-11
Eshete, Zelalem (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
Rocker
C123S090240, C123S090390
Reexamination Certificate
active
08033261
ABSTRACT:
A valve actuation system in an internal combustion engine provides for, among other things, valve control in a single and dual camshaft “push rod” type engine without the use of a return spring mechanism. In one embodiment of the present invention, a single rocker link or “push rod” is operably connected to a bifurcated rocker valve for opening and closing a single valve.
REFERENCES:
patent: 577589 (1897-02-01), Teubert
patent: 1309339 (1919-07-01), Reynolds
patent: 1318542 (1919-10-01), Chevrolet
patent: 1561544 (1925-11-01), How
patent: 1671973 (1928-06-01), Anderson
patent: 1679794 (1928-08-01), Smith
patent: 1937152 (1933-11-01), Junk
patent: 2015135 (1935-09-01), Brady
patent: 2266077 (1941-12-01), Roan
patent: 2410660 (1946-11-01), Howard
patent: 2466550 (1949-04-01), Lundquist
patent: 2584055 (1952-01-01), Smith
patent: 2641236 (1953-06-01), Mansfield
patent: 2738748 (1956-03-01), Hecht
patent: 2751895 (1956-06-01), Gassmann
patent: 2773490 (1956-12-01), Miller
patent: 2824554 (1957-02-01), Sampietro
patent: 2791206 (1957-05-01), Engemann
patent: 2814283 (1957-11-01), Gassmann
patent: 2817326 (1957-12-01), Taylor
patent: 2823655 (1958-02-01), Repko
patent: 2831470 (1958-04-01), Lorscheidt
patent: 2832327 (1958-04-01), Lorenz
patent: 2833258 (1958-05-01), Lorscheidt
patent: 2851851 (1958-09-01), Smith
patent: 2858818 (1958-11-01), Bailey
patent: 2878796 (1959-03-01), Mannerstedt
patent: 2880712 (1959-04-01), Roan
patent: 2954016 (1960-09-01), Leese
patent: 2954017 (1960-09-01), Forestner
patent: 3020018 (1962-02-01), Stram
patent: 3087479 (1963-04-01), Thompson
patent: 3138038 (1964-06-01), Scherenberg et al.
patent: 3195528 (1965-07-01), Franklin
patent: 3254637 (1966-06-01), Durham
patent: 3317179 (1967-05-01), Willis
patent: 3424024 (1969-01-01), Derbfuss
patent: 3430614 (1969-03-01), Meacham
patent: 3585974 (1971-06-01), Weber
patent: 3626469 (1971-12-01), Ashley
patent: 3641988 (1972-02-01), Torazza et al.
patent: 3684237 (1972-08-01), Hyde et al.
patent: 3911879 (1975-10-01), Altmann
patent: 4007716 (1977-02-01), Jones
patent: 4036185 (1977-07-01), Key
patent: 4061115 (1977-12-01), Predhome, Jr.
patent: 4138973 (1979-02-01), Luria
patent: 4261307 (1981-04-01), Oldberg
patent: 4364341 (1982-12-01), Holtmann
patent: 4382428 (1983-05-01), Tourtelot, Jr. et al.
patent: 4457268 (1984-07-01), Jones
patent: 4469056 (1984-09-01), Tourtelot, Jr. et al.
patent: 4475496 (1984-10-01), Sugahara
patent: 4495902 (1985-01-01), Burandt
patent: 4530318 (1985-07-01), Semple
patent: 4572118 (1986-02-01), Baguena
patent: 4576128 (1986-03-01), Kenichi
patent: 4594972 (1986-06-01), Ma
patent: 4646690 (1987-03-01), Hayashi
patent: 4662323 (1987-05-01), Moriya
patent: 4671221 (1987-06-01), Geringer et al.
patent: 4674451 (1987-06-01), Rembold
patent: 4697554 (1987-10-01), Bothwell
patent: 4711202 (1987-12-01), Baker
patent: 4714057 (1987-12-01), Wichart
patent: 4723515 (1988-02-01), Burandt
patent: 4754728 (1988-07-01), Bordi et al.
patent: 4763615 (1988-08-01), Frost
patent: 4784094 (1988-11-01), Bordi et al.
patent: 4805568 (1989-02-01), Springer et al.
patent: 4858573 (1989-08-01), Bothwell
patent: 4887564 (1989-12-01), Edwards
patent: 4887565 (1989-12-01), Bothwell
patent: 4898130 (1990-02-01), Parsons
patent: 4901684 (1990-02-01), Wride
patent: 4928650 (1990-05-01), Matayoshi
patent: 4944256 (1990-07-01), Matayoshi
patent: 5003939 (1991-04-01), King
patent: 5016581 (1991-05-01), Parsons
patent: 5048474 (1991-09-01), Matayoshi
patent: 5056476 (1991-10-01), King
patent: 5127375 (1992-07-01), Bowman et al.
patent: 5189998 (1993-03-01), Hara
patent: 5245957 (1993-09-01), Bornstein et al.
patent: 5501186 (1996-03-01), Hara
patent: 5680837 (1997-10-01), Pierik
patent: 5732669 (1998-03-01), Fischer
patent: 5732670 (1998-03-01), Mote
patent: 5782216 (1998-07-01), Haas et al.
patent: 5787849 (1998-08-01), Mitchell
patent: 5809951 (1998-09-01), Kim
patent: 5826551 (1998-10-01), Janse van Vuuren
patent: 5899180 (1999-05-01), Fischer
patent: 5931130 (1999-08-01), Lucarini
patent: 5937809 (1999-08-01), Pierik
patent: 6019076 (2000-02-01), Pierik
patent: 6053134 (2000-04-01), Linebarger
patent: 6109226 (2000-08-01), Mote
patent: 6257190 (2001-07-01), Linebarger
patent: 6311659 (2001-11-01), Pierik
patent: 6378474 (2002-04-01), Pierik
patent: 6382150 (2002-05-01), Fischer
patent: 6422187 (2002-07-01), Fischer
patent: 6487997 (2002-12-01), Palumbo
patent: 6497206 (2002-12-01), Nohara
patent: 6505590 (2003-01-01), Rao
patent: 6619250 (2003-09-01), Folino
patent: 6655330 (2003-12-01), Pierik
patent: 6694934 (2004-02-01), Preston
patent: 6705262 (2004-03-01), Battlogg
patent: 6796277 (2004-09-01), Battlogg
patent: 6802287 (2004-10-01), Battlogg
patent: 6817326 (2004-11-01), Anibas
patent: 6904882 (2005-06-01), Battlogg
patent: 6948468 (2005-09-01), Decuir
patent: 6953014 (2005-10-01), Folino
patent: 7051691 (2006-05-01), Battlogg
patent: 7077088 (2006-07-01), Decuir
patent: 7082912 (2006-08-01), Folino
patent: 2003/0019467 (2003-01-01), Mengoli
US 2,131,755, 10/1938, Roan (withdrawn)
Neil Spalding, “Positive action: Neil Spalding assesses Ducati's continuing use of desmodromic valve actuation”, Race Engine Technology, Aug. 2007, pp. 24-25, Issue 24, High Power Media, Somerset, England. (3 pgs).
http://www.shopereator.com/mall/productpage.cfm/RET/2025/111664 (1 pg).
Eshete Zelalem
J. Mark Holland & Associates
LandOfFree
Valve actuation system and related methods does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Valve actuation system and related methods, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve actuation system and related methods will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4270055