Fluid heating and pumping apparatus

Details Fluid heating and pumping apparatus Fluid heating and pumping apparatus

1999-03-03

2000-03-28

Joyce, Harold

Liquid heaters and vaporizers

Stand boiler

122451R, 126361, 126344, 220723, F22B 500

Patent

active

060417420

ABSTRACT:
A fluid heating and pumping apparatus for use with hot fluid space heating systems includes a fluid tank containing heated fluid and a collapsible bladder contained within the fluid tank for absorbing expansion of the fluid within the fluid tank as it is heated. An air venting device is mounted at a high point in the fluid tank to discharge any air as the heating system is filled with fluid and operated. A fluid circulating impeller, volute, and pressure bypass valve apparatus are also contained within the fluid tank and are connected to an outlet in the fluid tank through which heated fluid is pumped to heat transfer components of a space heating system. A fluid mixing apparatus is attached to the fluid circulating impeller to mix heated fluid from the fluid tank with cooled fluid returned from the heat transfer components to thereby provide fluid having a desired temperature.

REFERENCES:
patent: 4098434 (1978-07-01), Uhlig
patent: 4545524 (1985-10-01), Zelczer
patent: 4645125 (1987-02-01), Omori
patent: 4817830 (1989-04-01), Yavorsky
patent: 5555997 (1996-09-01), Nogles
patent: 5584316 (1996-12-01), Lund
patent: 5690061 (1997-11-01), Lopez

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