초록 ▼

A combined heat and electricity generating unit is suitable for use in single family homes and the like. When it is operating it provides heat for heating the home and electricity for use by the electricity consuming devices in the home and the excess is available for sale to the power utility. It i

A combined heat and electricity generating unit is suitable for use in single family homes and the like. When it is operating it provides heat for heating the home and electricity for use by the electricity consuming devices in the home and the excess is available for sale to the power utility. It includes an air compressor, a fuel pump, a turbine driven by heated combustion products and an electric motor-generator for driving the fuel pump and air compressor and converting energy produced by the turbine to electricity. In an alternate embodiment the electric motor-generator is replaced by an electric motor and an electric generator. In the case where gaseous fuel is used the fuel pump may be a positive displacement gas compressor. The pressurized combustion products enable a particularly efficient and inexpensive heat exchanger. The air compressor maintains a slight vacuum in the housing thereby eliminating risk of combustion products escaping.

대표청구항 ▼

[ What is claimed is:] [1.] A cogeneration system comprising:a turbine having a turbine inlet and a turbine outlet,an electric generator coupled with said turbine for driving thereby,a positive displacement compressor for pressurizing air and having an air inlet for admitting air for pressurization

[ What is claimed is:] [1.] A cogeneration system comprising:a turbine having a turbine inlet and a turbine outlet,an electric generator coupled with said turbine for driving thereby,a positive displacement compressor for pressurizing air and having an air inlet for admitting air for pressurization and an air outlet for issuing pressurized air,means for driving said positive displacement compressor,combustion means for burning fuel and said pressurized air for generating pressurized combustion products,said turbine inlet being coupled with said combustion means for receiving said pressurized combustion products whereby said turbine converts energy contained in said pressurized combustion products to mechanical energy for driving said generator and discharges reduced energy combustion products at said turbine outlet, and a heat exchanger coupled with said turbine outlet for receiving said reduced energy combustion products and exchanging heat contained therein,said heat exchanged being of a quantity appropriate for heating a single family residence.