Micro reaction turbine with integrated combustion chamber and rotor
OwnerGustaaf Witteveeninventor
Life of this patent
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Abstract
A small scale apparatus for generating heat and power is presented which comprises a small rotary turbomachine, in such a manner that compression, heating and expansion of the working medium take place in a connected rotating component, with a diameter of less than 200 mm and which then has a rotational speed of higher than 50 000 revolutions per minute, the rotor completely or partially rotating in an atmosphere which is formed by the expanded gas or vapor. Additional characteristic features mentioned include a multistage compressor, intercooling of the working medium, recovery of residual heat (regeneration) from the expanded gases, external heating of the working medium and a procedure based on a two-phase substance as working medium.
Claims17
A reaction turbine, comprising a rotatably mounted turbine wheel, said turbine wheel comprising an inlet arranged in the vicinity of its center axis and an outlet arranged in the vicinity of the outer circumference, with a compressor having a compression passage and a combustion chamber being arranged between the said outlet and inlet, said combustion chamber and compressor being completely delimited within the said turbine wheel, said compressor being fixedly connected to said combustion chamber, said combustion chamber comprising a single open annular chamber and said compressor is a centrifugal compressor and said compression passage has an unbladed transition to said combustion chamber.
A method for driving a turbine wheel of a reaction turbine in rotation, comprising the steps of introducing a gas via the inlet thereof, compressing the gas in a compressing passage, reacting said gas in a combustion chamber to form combustion gas, discharging said combustion gas via an outlet, wherein combustion takes place at just one location in the said turbine wheel, wherein the gas comprises a gas/air mixture having a slight excess of air.
Dependencies are inferred from the claim text.