Closing arrangement for ducts having large cross-sectional areas

Details Closing arrangement for ducts having large cross-sectional areas Closing arrangement for ducts having large cross-sectional areas

1989-10-20

1991-04-16

Hepperle, Stephen M.

Fluid handling

Systems

Dividing into parallel flow paths with recombining

137865, 251229, F16K 1116

Patent

active

050074563

ABSTRACT:
A closing arrangement for ducts having large cross-sectional areas, particularly flue gas ducts for power plants. The arrangement includes at least two flaps which are mounted on at least one flap shaft. Lever arrangements composed of crank arms and tightening arms for swinging the flaps are connected to the flaps. At least one drive shaft is connected to the lever arrangements. The drive shaft extends transversely of the flap shaft. The transverse arrangement of the drive shaft makes it possible to open and close the flaps by means of a single drive shaft.

REFERENCES:
patent: 1159566 (1915-11-01), Brigel
patent: 4259987 (1981-04-01), Janssen
patent: 4442862 (1984-04-01), McCabe
patent: 4457336 (1984-07-01), Allan et al.
patent: 4535811 (1985-08-01), Wood et al.
patent: 4749004 (1988-06-01), Peash

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