Positive displacement continuous combustion engine

Details Positive displacement continuous combustion engine Positive displacement continuous combustion engine

F - Mech Eng,Light,Heat,Weapons

02

B

170/83

F02B 53/14 (2006.01)

Patent

CA 1051784

ABSTRACT OF THE DISCLOSURE A housing defining a flow passage therethrough including inlet and outlet ends as well as a central portion intermediate the inlet and outlet ends is provided. Positive displacement gas pump structure in the form of a roots-type compressor is operatively associated with the inlet end of the passage for pumping air under pressure therethrough and into the central portion between the inlet and outlet ends which defines a combustion chamber. The roots-type compressor or pump also defines an obstruction to the reverse flow of gas under pressure from the combustion chamber outwardly of the inlet end of the passage. A positive displacement gas motor in the form of a roots- type fluid motor is operatively associated with the outlet end of the passage for developing rotary torque in response to elevated gas pressures within the combustion chamber and the passage of gas under elevated pressures from the combustion chamber, through the roots-type motor and out the outlet of the passage. The roots-type pump and motor include rotary input and rotary output shafts and a gear train drivingly connects the output shaft to the input shaft for driving the roots-type pump at a volumetric rate lower than the volumetric rate of the roots type motor provided at the outlet end of the passage. Further, fuel injection and ignition structure is operatively associated with the combustion chamber for forming and igniting a combustible mixture therein and the outlet of the passage, downstream from the roots-type motor, includes fuel injection nozzles for injecting fuel under pressure into the outlet end of the passage whereby the outlet end of the passage may function in the manner of an afterburner. Still further, temperature controlled water injection nozzles are operatively associated with the combustion chamber for injecting heated water into the combustion chamber for vaporization and heat absorption therein.

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