Evaporator with integrated heat recovery
AssigneeEnviro Power, Inc.
InventorsMichael A Cocuzza, Graham H Steen
Life of this patent
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Abstract
An evaporator with integrated heat recovery incorporates a vapor tube in a combustion chamber surrounded by a water jacket. The water jacket is in fluid communication with an exhaust gas heat exchanger. Coolant circulates through the exhaust gas heat exchanger to recover heat from exhaust gasses leaving the combustion chamber and then circulates through the water jacket surrounding the combustion chamber to recover heat not delivered to the operating fluid. The evaporator may incorporate a condenser within the housing and in fluid communication with the exhaust gas heat exchanger and water jacket. Coolant may enter the evaporator housing at the condenser before circulating through the exhaust gas heat exchanger and water jacket.
Claims12
An evaporator with integrated heat recovery, said evaporator comprising:
- a housing;
- a combustion chamber within said housing, said combustion chamber surrounding a fuel burner combusting fuel to generate heat and a flow of heated combustion gasses;
- a vapor tube arranged in said combustion chamber, said vapor tube having an inlet end receiving a flow of operating fluid which absorbs heat from said heated combustion gasses and transitions to vapor, which leaves said vapor tube at an outlet end;
- an exhaust gas heat exchanger within said housing and comprising a plurality of exhaust tubes receiving said flow of heated combustion gasses from said combustion chamber;
- a coolant jacket inside said housing at least partially surrounding said combustion chamber and in fluid communication with said exhaust gas heat exchanger,
- wherein coolant enters said housing and circulates through said exhaust gas heat exchanger and said coolant jacket before leaving said housing.
Dependencies are inferred from the claim text.