ROTARY PISTON MACHINE Russian patent published in 1995 - IPC

FIELD: conversion of thermal energy to mechanical energy of pump, compressor, flowmeter or proportioner. SUBSTANCE: arranged in inner crossing chambers of stator made in form of bodies of revolution are pistons with curvilinear end surfaces which are kinematically linked together and are used as mutual contactors. Arranged in each pair of chambers having one common volume are pistons whose angles between tangential chambers at points of contact and planes parallel to planes of rotation and passing through points of contact of end surfaces are determined by preset expressions. Lateral radial surfaces of pistons which are get in contact in common volume are made in form of parts of lateral surfaces of toroids. EFFECT: enhanced reliability. 2 dwg