Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 11, 2011
Patent Application Number
11317651
Date Filed
December 23, 2005
Patent Primary Examiner
Patent 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.
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