Internal-combustion engines – Charge forming device – Crankcase vapor used with combustible mixture
Reexamination Certificate
2008-12-22
2010-12-14
McMahon, M. (Department: 3741)
Internal-combustion engines
Charge forming device
Crankcase vapor used with combustible mixture
C123S041860
Reexamination Certificate
active
07849841
ABSTRACT:
A crankcase ventilation system for an internal combustion engine has an engine driven pump pumping scavenged separated oil from the oil outlet of an air-oil separator to the crankcase, preferably using engine generated pulsating oscillatory positive and negative relative pressure pulses.
REFERENCES:
patent: 2688316 (1954-09-01), Brill
patent: 3769879 (1973-11-01), Lofquist, Jr.
patent: 3824973 (1974-07-01), Harhaus
patent: 4093403 (1978-06-01), Schrimpf et al.
patent: 4406591 (1983-09-01), Louis
patent: 4452195 (1984-06-01), Matsumoto et al.
patent: 4557226 (1985-12-01), Mayer et al.
patent: 5315968 (1994-05-01), Niebrzydoski
patent: 5479907 (1996-01-01), Walker, Jr.
patent: 5893343 (1999-04-01), Rigazzi
patent: 6092492 (2000-07-01), Kampichler et al.
patent: 6247463 (2001-06-01), Fedorowicz et al.
patent: 6279555 (2001-08-01), Crowell et al.
patent: 6279556 (2001-08-01), Busen et al.
patent: 6290738 (2001-09-01), Holm
patent: 6354283 (2002-03-01), Hawkins et al.
patent: 6478019 (2002-11-01), Fedorowicz et al.
patent: 6505615 (2003-01-01), Pietschner
patent: 6626163 (2003-09-01), Busen et al.
patent: 6684864 (2004-02-01), Busen et al.
patent: 7238216 (2007-07-01), Malgorn et al.
patent: 7406960 (2008-08-01), Knauf et al.
patent: 7473291 (2009-01-01), Evenstad et al.
patent: 7699029 (2010-04-01), Herman et al.
patent: 2003/0101960 (2003-06-01), Tsuchiya et al.
patent: 2004/0263558 (2004-12-01), Seshimo
patent: 2006/0086649 (2006-04-01), Wieczorek et al.
patent: 2007/0119515 (2007-05-01), Phillips et al.
patent: 2007/0256566 (2007-11-01), Faber et al.
patent: 2008/0264018 (2008-10-01), Herman
patent: 2010/0175642 (2010-07-01), Herman et al.
patent: 1 275 828 (2003-01-01), None
“The Design of Jet Pumps”, Gustav Flugel, National Advisory Committee for Aeronautics, Technical Memorandum No. 982, 1939.
“Jet-Pump Theory and Performance with Fluids of High Viscosity”, R.G. Cunningham, Transactions of the ASME, Nov. 1957, pp. 1807-1820.
Clark Bradley T.
Conner Michael J.
Holm Christopher E.
Holzmann Mark V.
Rutzinski Ryan W.
Andrus, Sceales, Starke & Sawall LLC
Cummins Filtration IP Inc.
McMahon M.
Schelkopf J. Bruce
LandOfFree
Crankcase ventilation system with engine driven pumped... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Crankcase ventilation system with engine driven pumped..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crankcase ventilation system with engine driven pumped... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4172589