Gas separation – Combined or convertible – In motor vehicle
Reexamination Certificate
2000-08-31
2002-07-30
Simmons, David A. (Department: 1724)
Gas separation
Combined or convertible
In motor vehicle
C055S498000, C055S502000, C123S19800E
Reexamination Certificate
active
06425930
ABSTRACT:
BACKGROUND AND SUMMARY
The invention relates to air cleaners, including air cleaners for vehicles having an internal combustion engine in an engine compartment covered by a hood.
The invention arose during development efforts directed toward inlet shroud seals for underhood air cleaners. It is known in the prior art to provide a resilient inlet shroud seal for an underhood air cleaner engaging the vehicle hood at an air channel exit opening for directing air from the air channel through the exit opening into the filter housing inlet. Such shroud seals require extra parts or fasteners to mount the shroud seal to the filter housing, such as bolts and clamps.
The present invention provides an inlet shroud seal self-mounted to the filter housing without extra parts or fasteners. The invention also provides both axial and radial insertion and retention of the shroud seal on the housing for improved mounting. In one aspect, a low profile inlet shroud hood seal is provided and enables a straighter flow path into the air cleaner, reducing restriction. The low profile is desired in new generation truck designs having lower hood lines, which in turn reduces underhood space for engine components such as vertically extensive shroud seal inlet bellows and fastener components therefor. For example, an air cleaner with a tubular inlet pipe having an inlet shroud seal bellows attached thereto by a hose clamp requires a minimum length of engagement in order to provide secure attachment and also allow room for the hose clamp itself. The present invention address and solves this problem.
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Holzmann Mark V.
Mikolichek Michael J.
Stiemke Donald E.
Wake Jon S.
Calfa Jeffrey P.
International Truck Intellectual Property Company L.L.C.
Pham Minh-Chau T.
Powell Neil T.
Simmons David A.
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