Heating appliance

Details Heating appliance Heating appliance

2011-01-11

2011-01-11

Wilson, Gregory A (Department: 3749)

Liquid heaters and vaporizers

Stand boiler

Heated by liquid or steam

C237S01230C

Reexamination Certificate

active

07866283

ABSTRACT:
A domestic combined heat and power system comprising a Stirling engine and water heater in the form of a supplementary burner. The exhaust gas from the Stirling engine is used to preheat combustible gas entering the Stirling engine and subsequently used to heat the water. The water heater has a helical water duct towards the periphery of a housing. Separate parts of this duct are heated, in series, by the exhaust gas from the Stirling engine and the supplementary burner firing radially outwardly through the helical duct.

REFERENCES:
patent: 4192457 (1980-03-01), Easterly
patent: 4572111 (1986-02-01), Bowen
patent: 4686940 (1987-08-01), Fullemann
patent: 4798240 (1989-01-01), Gerstmann et al.
patent: 5052345 (1991-10-01), Bystrom et al.
patent: 6668762 (2003-12-01), Khosrowyar
patent: 6941754 (2005-09-01), Aldridge et al.

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