Common vent device for positive vent pressure and draft hood equ

Details Common vent device for positive vent pressure and draft hood equ Common vent device for positive vent pressure and draft hood equ

1987-09-23

1988-09-06

Joyce, Harold

Furnaces

Draft regulators

Stack

126307R, F23L 1716

Patent

active

047684445

ABSTRACT:
A vent device is provided for common venting of exhaust gases discharged from separate apparatus at different vent pressures. The vent device provides a passageway and exhaust gas inlets for combining the exhaust gases and conveying them to a single vent stack. The higher vent pressure exhaust gases are discharged within the passageway using a venturi or jet pump effect to provide a zone of reduced pressure in the passageway for inducing the flow of the lower vent pressure exhaust gases into the device.

REFERENCES:
patent: 1869939 (1932-08-01), Latimer
patent: 3119604 (1964-01-01), Biber et al.
patent: 4187833 (1980-02-01), Zahora et al.
patent: 4452152 (1984-06-01), John et al.
patent: 4481935 (1984-11-01), Bawel
patent: 4485746 (1984-12-01), Erlandsson
patent: 4613297 (1986-09-01), Zanias et al.

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