ROTARY REVERSING, PISTON PNEUMOHYDRAULIC, OSCILLATING CRANK MOTOR Russian patent published in 1999 - IPC

FIELD: conversion of excess pressure of gaseous and liquid media into mechanical rotation energy. SUBSTANCE: motor has case with annular working chamber, pistons mounted on disks in pairs and placed in annular working chamber so that they divide it into piston-to-piston chambers. Motor case has two pairs of inlet and outlet ports each receiving pipeline running from change-over mechanism that functions to change working medium flow direction. EFFECT: provision for effective operation from external pressure source. 9 dwg