Sealing valve for air ducts

Details Sealing valve for air ducts Sealing valve for air ducts

1987-12-23

1988-10-18

Chambers, A. Michael

Valves and valve actuation

Rotary valves

Butterfly

251305, B60H 126

Patent

active

047781513

ABSTRACT:
A sealing device is provided for sealing the bearing journal area of a rotatable flap within the housing of an air guiding duct which sealing device allows for a reliable sealing, increased rotational mobility of the flap and a saving of material cost and weight. The sealing device is formed with a sealing lip arranged over and extending around approximately half the circumference of a bearing journal creating a front-side sealing surface disposed against the interior wall of a housing. The sealing device is connected to the bearing journals and flap body by the engagement of connecting pieces into holes provided in the flap body and a flange provided on a bearing collar all displaced from the interior wall of the housing.

REFERENCES:
patent: 3111300 (1963-11-01), Boone, Sr.
patent: 3666235 (1972-05-01), Scott
patent: 3724812 (1973-04-01), Richardson
patent: 4176823 (1979-12-01), Gliatas

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