Internal-combustion engines – Cooling – Internal cooling of moving parts; e.g. – hollow valves,...
Reexamination Certificate
2011-01-04
2011-01-04
Gimie, Mahmoud (Department: 3747)
Internal-combustion engines
Cooling
Internal cooling of moving parts; e.g., hollow valves,...
C123S193400
Reexamination Certificate
active
07861679
ABSTRACT:
In an opposed piston engine, a pair of pistons are disposed in opposition in the bore of a cylinder. The cylinder includes first liquid coolant grooves having a first cooling capacity to cool a portion of the cylinder extending from a central portion toward an exhaust port, and second liquid coolant grooves having a second cooling capacity, less than the first cooling capacity, to cool a portion of the cylinder extending from the central portion toward an inlet port. Each piston includes a cylindrical skirt with a crown and an open end opposite the crown, a piston rod with a bore, a first end attached to a back surface of the crown, and a second end extending through the open end of the skirt, a radial array of liquid coolant flow passages in communication with the bore and disposed between the first end and the back surface of the crown, and a single wristpin retained on the second end section of the piston rod and positioned externally to the piston.
REFERENCES:
patent: 704713 (1902-07-01), Klein
patent: 1231903 (1917-07-01), Junkers
patent: 1386062 (1921-08-01), Junkers
patent: 1410019 (1922-03-01), Krause
patent: 1410319 (1922-03-01), Junkers
patent: 1495326 (1924-05-01), Junkers
patent: 1683040 (1928-09-01), Junkers
patent: 1704325 (1929-03-01), Junkers
patent: 1796603 (1931-03-01), Junkers
patent: 1808380 (1931-06-01), Royal
patent: 1818558 (1931-09-01), Junkers
patent: 1892277 (1932-12-01), Junkers
patent: 1956355 (1934-04-01), Junkers
patent: 1981870 (1934-11-01), Magdeburger
patent: 2031318 (1936-02-01), Junkers
patent: 2048002 (1936-07-01), Frit
patent: 2056056 (1936-09-01), Ballou
patent: 2076334 (1937-04-01), Burns
patent: 2160380 (1939-05-01), Colburn
patent: 2169807 (1939-08-01), Lyon
patent: 2244323 (1941-06-01), Antonsen et al.
patent: 2283432 (1942-05-01), Gerlach et al.
patent: 2374460 (1945-04-01), Rossman
patent: 2398640 (1946-04-01), Hickey
patent: 2417910 (1947-03-01), Bruegger
patent: 2423395 (1947-07-01), Lieberherr
patent: 2473760 (1949-06-01), Marion
patent: 2653484 (1953-09-01), Zecher
patent: 2788773 (1957-04-01), Meurer
patent: 3023743 (1962-03-01), Schauer
patent: 3065743 (1962-11-01), Brehm
patent: 3084678 (1963-04-01), Linsay
patent: 3117566 (1964-01-01), Vendendiger
patent: 3182642 (1965-05-01), Drtina
patent: 3209736 (1965-10-01), Witzky
patent: 3221718 (1965-12-01), Isley
patent: 3359957 (1967-12-01), Albrecht-Wolfgang
patent: 3369530 (1968-02-01), Campbell
patent: 3520285 (1970-07-01), Klauder
patent: 3528394 (1970-09-01), Cummins
patent: 3534715 (1970-10-01), Antonsen et al.
patent: 3777722 (1973-12-01), Lenger
patent: 3983793 (1976-10-01), Beardmore
patent: 4010611 (1977-03-01), Zachery
patent: 4010718 (1977-03-01), Stewart
patent: 4090479 (1978-05-01), Kaye
patent: 4204487 (1980-05-01), Jones
patent: 4215660 (1980-08-01), Finley
patent: 4375792 (1983-03-01), Barret
patent: 4508065 (1985-04-01), Sudchev
patent: 4694785 (1987-09-01), Timmerman et al.
patent: 4794896 (1989-01-01), Tsai et al.
patent: 4908923 (1990-03-01), Anderson
patent: 5017758 (1991-05-01), Kirkman
patent: 5042441 (1991-08-01), Paul et al.
patent: 5058536 (1991-10-01), Johnston
patent: 5058537 (1991-10-01), Paul et al.
patent: 5355854 (1994-10-01), Aubee
patent: 5442993 (1995-08-01), Baliotti et al.
patent: 5533472 (1996-07-01), Sands et al.
patent: 5806631 (1998-09-01), Yoshida et al.
patent: 5826556 (1998-10-01), Ruman et al.
patent: 5884550 (1999-03-01), Northam
patent: 5915345 (1999-06-01), Kling et al.
patent: 6039011 (2000-03-01), Agalarov et al.
patent: 6170443 (2001-01-01), Hofbauer
patent: 6182619 (2001-02-01), Spitzer et al.
patent: 6276260 (2001-08-01), Bianchi
patent: 6283478 (2001-09-01), Kumai et al.
patent: 6311761 (2001-11-01), Steininger et al.
patent: 6418885 (2002-07-01), Paul et al.
patent: 6481389 (2002-11-01), Suzuki et al.
patent: 6662762 (2003-12-01), Schuko
patent: 7047916 (2006-05-01), Pischinger et al.
patent: 7156056 (2007-01-01), Lemke et al.
patent: 7207299 (2007-04-01), Hofbauer
patent: 7255070 (2007-08-01), Hofbauer
patent: 7270108 (2007-09-01), Lemke
patent: 7334570 (2008-02-01), Klyza
patent: 7360511 (2008-04-01), Lemke et al.
patent: 7383796 (2008-06-01), Hofbauer
patent: 7434550 (2008-10-01), Hofbauer
patent: 7469664 (2008-12-01), Hofbauer et al.
patent: 7509937 (2009-03-01), Hofbauer
patent: 7546819 (2009-06-01), Lemke et al.
patent: 7549401 (2009-06-01), Lemke et al.
patent: 7578267 (2009-08-01), Hofbauer
patent: 7591235 (2009-09-01), Lemke et al.
patent: 7735834 (2010-06-01), Hofbauer
patent: 2004/0011308 (2004-01-01), Hausler et al.
patent: 2005/0274332 (2005-12-01), Lemke et al.
patent: 2006/0157003 (2006-06-01), Lemke et al.
patent: 2007/0039572 (2007-02-01), Lemke et al.
patent: 2007/0245892 (2007-10-01), Lemke et al.
patent: 2008/0017164 (2008-01-01), Hofbauer
patent: 2008/0035101 (2008-02-01), Hausler et al.
patent: 2008/0041346 (2008-02-01), Hofbauer
patent: 2008/0127947 (2008-06-01), Hofbauer et al.
patent: 2008/0163848 (2008-07-01), Lemke et al.
patent: 2008/0314688 (2008-12-01), Lemke et al.
patent: 2009/0183491 (2009-07-01), Hofbauer
patent: 2009/0293820 (2009-12-01), Lemke et al.
patent: 2010/0012055 (2010-12-01), Lemke et al.
patent: 20385 (1899-10-01), None
patent: 11054 (1880-09-01), None
patent: 195 47 186 (1988-07-01), None
patent: 424 3571 (1992-12-01), None
patent: 199 62 325 (2001-07-01), None
patent: 0609866 (1994-08-01), None
patent: 0747591 (1996-12-01), None
patent: 0943788 (1999-09-01), None
patent: 5941 AD 1913 (1914-01-01), None
patent: 3720 (1900-03-01), None
patent: 10974 AD1914 (1918-05-01), None
patent: 147733 (1921-02-01), None
patent: 173226 (1923-02-01), None
patent: 147730 (1926-03-01), None
patent: 348084 (1931-10-01), None
patent: 348097 (1931-10-01), None
patent: 558 115 (1943-12-01), None
patent: 779 631 (1957-07-01), None
patent: 58-1709681 (1983-10-01), None
patent: WO 00/28194 (2000-05-01), None
patent: WO 00/68553 (2000-11-01), None
patent: WO 01/75284 (2001-10-01), None
patent: WO 2005/103456 (2005-11-01), None
patent: WO 2005/124124 (2005-12-01), None
patent: WO 2007/109122 (2007-09-01), None
J.F. Butler, E.P. Crowdy;The Doxford Seahorse Engine, paper presented at a joint meeting of the Institute and N.E.C.I.E.S. on Nov. 8-9, 1971 pp. 73-115.
J. K. Parker, S. R. Bell, D. M. Davis;An Opposed Piston Diesel Engine, ICE vol. 18, New Developments in Off-Highway Engines, ASME 1992, pp. 17-24.
J. C. McLanahan, Salem State College;Diesel Aircraft Engine: A Delayed Promise from the1930's, SAE International and American Institute if Aeronautics, 1999-01-5583, pp. 1-10.
W.W. Pulkrabek,Engineering Fundamentals of the Internal Combustion Engine, Second Edition, 2004, pp. 5-11.
Wickipedia, the article entitled “Opposed Piston Engine”, last update Jul. 12, 2007, printed Jul. 30, 2007, pp. 1-4.
International Search Report and Written Opinion of the ISA, PCT/US2005/020553, mailed Nov. 24, 2005.
International Preliminary Report on Patentability, PCT/US2007/006618, mailed Feb. 1, 2008.
English Translation of First Office Action in PRC application 200580023840.9, mailed Jul. 25, 2008.
Chinese Abstract of CN 1077214C.
English summary of Applicant's response to the first Office Action in PRC application 200580023840.9, with replacement claims.
English Translation of Second Office Action in PRC application 200580023840.9, mailed Jul. 17, 2009.
English translation of claims in PRC patent CN 1985082 B.
First Examination Report in EP application 05757692.8, mailed Sep. 5, 2008.
Applicant's response to the first Examination Report in EP application 05757692.8, submitted Dec. 18, 2008.
Hoffman Ronald J.
Lee Patrick R.
Lemke James U.
Wahl Michael H.
Achates Power, Inc.
Gimie Mahmoud
INCAPLAW
Meador Terrance A.
LandOfFree
Cylinder and piston assemblies for opposed piston engines does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cylinder and piston assemblies for opposed piston engines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cylinder and piston assemblies for opposed piston engines will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2659501