Valve for changing the direction of flow of a fluid in pipe...

Details Valve for changing the direction of flow of a fluid in pipe... Valve for changing the direction of flow of a fluid in pipe...

2006-10-10

2006-10-10

Lee, Kevin (Department: 3753)

Fluid handling

Reversing valves - regenerative furnace type

Rotary reversing valve

C137S625430

Reexamination Certificate

active

07117882

ABSTRACT:
A valve and use of a valve. The valve changes the direction of flow of a fluid in pipings conducting the fluid to and from a heat exchanger. A cylindrical casing and a valve body enclosed therein can be rotated between two positions. The valve body has three flow passages. A fourth flow passage is constituted by the space between the house of the valve and respective walls around the flow passages in the valve body. The entire valve is flushed by the fluid during operation, thereby eliminating the risk for accumulation of dirt in the valve.

REFERENCES:
patent: 4445540 (1984-05-01), Baron et al.
patent: 4506703 (1985-03-01), Baron
patent: 6058974 (2000-05-01), Blomgren
patent: 6698452 (2004-03-01), Sisk et al.
patent: 2006/0037654 (2006-02-01), Moreno
patent: 31 47 511 (1983-06-01), None
patent: 37 27 467 (1989-02-01), None
patent: 324239 (1980-01-01), None
patent: 504 895 (1997-05-01), None
patent: WO 98/01688 (1998-01-01), None

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