Aggregate for producing fresh air stream

Details Aggregate for producing fresh air stream Aggregate for producing fresh air stream

1994-11-16

1996-10-22

Bhat, N.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

422172, 422177, 60300, 60303, 60307, 60293, 1376142, 137494, 137854, F01N 322, F16K 3112

Patent

active

055673937

ABSTRACT:
An apparatus for producing a fresh air stream, has a blower connectable at a pressure side with an exhaust gas conduit of an internal combustion engine of a motor vehicle, a fresh air supply element communicatable with the exhaust gas conduit, a check valve provided between the blower and an opening of the fresh air supply element into the exhaust gas conduit, a cut-off arranged in the fresh air supply element between the check valve and its opening into the exhaust gas conduit and having a closing member loaded with a spring force toward a closing position, an actuating member for the closing member, and a bypass branching from the fresh air supply element so that a pressure which builds when the blower operates and is supplied through the bypass to the actuating member for the closing member acts opposite to the spring force.

REFERENCES:
patent: 3613646 (1971-10-01), Hisada
patent: 4359016 (1982-11-01), Bachmann
patent: 5266753 (1993-11-01), Muschelknautz et al.
patent: 5286164 (1994-02-01), Goehre et al.
patent: 5301504 (1994-04-01), Bertling et al.
patent: 5377650 (1995-01-01), Warner
patent: 5390697 (1995-02-01), Muschelknautz

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