Patent ID: 6364642
Filing Date: 2002-04-02
Classification: F04C

Abstract:
A rotary piston machine comprising a chamber within a housing in which a pair of three-blade rotors rotate in opposite directions around parallel spaced axes and intermesh so as to be free of contact, forming separate cells with a peripheral wall of the chamber and with each other, wherein(a) said blades of the rotors are claw-like shaped and, together with the chamber, simultaneously define a suction cell whose volume increases during rotation of the rotors as well as a pressure cell whose volume decreases when the rotors rotate; (b) said rotors, together with said chamber, define a pair of charging cells that are initially separated from each other during rotation of the rotors and that, during further rotation of the rotors, are merged with each other to define said pressure cell; (c) a suction port passes through a side plate of the housing and opens up into the chamber opposite the suction cell; (d) a pressure port passes through a side plate of the housing and opens up into the chamber opposite the pressure cell; (e) at least one charging cell has an associated charging port.