Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Reexamination Certificate
2007-05-08
2007-05-08
Wolfe, Jr., Willis R. (Department: 3747)
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
C251S368000
Reexamination Certificate
active
11196050
ABSTRACT:
Mechanical systems having anti-stick mediums applied thereto are provided. In one aspect, exhaust gas recirculation (EGR) valve systems having anti-stick mediums applied thereto are also provided. The anti-stick medium can be applied to any contacting surface, such as but not limited to the valve surface and/or the valve seat surface. The anti-stick medium is intended to prevent the valve surface and the valve seat surface sticking or bonding together, especially with respect to the operation of cooled or cold side EGR systems. If any materials should stick to the anti-stick medium, a portion of the anti-stick medium will break away from the surface, allowing the surface and/or component to function normally. The anti-stick medium can include, without limitation, boron nitride coatings, boron nitride aerosols, boron nitride greases, thin dense chrome platings, perfluoroalkoxy, and combinations thereof.
REFERENCES:
patent: 2056042 (1936-09-01), Fausek et al.
patent: 4106449 (1978-08-01), Matsumoto et al.
patent: 4443172 (1984-04-01), Riley et al.
patent: 4460284 (1984-07-01), Lauterbach et al.
patent: 4612880 (1986-09-01), Brass et al.
patent: 4649703 (1987-03-01), Dettling et al.
patent: 5089237 (1992-02-01), Schuster et al.
patent: 5186135 (1993-02-01), Kovach
patent: 5205170 (1993-04-01), Blechinger et al.
patent: 5249554 (1993-10-01), Tamor et al.
patent: 5277542 (1994-01-01), Nakanishi
patent: 5370364 (1994-12-01), Kenmoku et al.
patent: 5426936 (1995-06-01), Levendis et al.
patent: 5607010 (1997-03-01), Schönfeld et al.
patent: 5655493 (1997-08-01), Enright et al.
patent: 5771873 (1998-06-01), Potter et al.
patent: 5785030 (1998-07-01), Paas
patent: 5904125 (1999-05-01), Enright et al.
patent: 5956947 (1999-09-01), Tanaka et al.
patent: 5998343 (1999-12-01), Ishii
patent: 6101999 (2000-08-01), Ohashi et al.
patent: 6167859 (2001-01-01), Strasser et al.
patent: 6272913 (2001-08-01), Naegele et al.
patent: 2002/0179034 (2002-12-01), Sisken
patent: 2138577 (1995-06-01), None
patent: 35 17 914 (1986-11-01), None
patent: 2049483 (1980-12-01), None
patent: 62000603 (1987-01-01), None
Abbitt Guy L.
Czarnowski Robert S.
Hopkins, Jr. Micheal
McIntyre James T.
Wilson Joseph A.
Borg-Warner Inc.
Dziegielewski Greg
Warn, Hoffmann, Miller & Ozga, P.C.
Wolfe, Jr. Willis R.
LandOfFree
Exhaust gas recirculation valve does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Exhaust gas recirculation valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exhaust gas recirculation valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3725518