Circular piston machine

Claim 1

A CIRCULAR PISTON MACHINE, ESPECIALLY CIRCULAR PISTON MOTOR, WHICH INCLUDES: A HOUSING WITH AN EPITROCHOIDAL INNER CONTOUR, A SHAFT JOURNALLED IN SAID HOUSING AND PROVIDED WITH AN ECCENTRIC, A ROTARY PISTON ROTATABLE RELATIVE TO SAID INNER CONTOUR OF SAID HOUSING AND JOURNALLED ON SAID ECCENTRIC FOR ROTATION RELATIVE THERETO, SAID PISTON BEING OF TRIANGULAR CROSS SECTIONAL SHAPE SO AS TO HAVE THREE CIRCUMFERENTIALLY SPACED EDGES EXTENDING IN THE DIRECTION OF THE AXIS OF ROTATION OF SAID PISTON, SEALING STRIP MEANS RESPECTIVELY MOUNTED AT SAID EDGES AND CONTACTING SAID INNER CONTOUR, SAID PISTON HAVING THE THREE AREAS THEREOF WHICH ARE LOCATED BETWEEN SAID STRIP MEANS AND FACE SAID INNER CONTOUR EACH PROVIDED WITH A SINGLE TROUGH STRUCTURE ONLY HAVING A VOLUME OF AT LEAST 15% OF THE MINIMUM VOLUME CONFINED BY SAID HOUSING AND EACH OF SAID AREAS OF SAID ROTARY PISTON DURING A COMPLETE ROTATION OF THE LATTER, EACH OF SAID TROUGH STRUCTURES EXTENDING IN A DIRECTION TRANSVERSE TO THE AXLE OF ROTATION OF SAID ROTARY PISTON AND SUBSTANTIALLY CIRCUMFERENTIALLY OF THE PISTON, AND NOZZLE MEANS LOCATED IN SAID HOUSING AND HAVING ITS MOUTH OPENING INTO AN AREA OF SAID HOUSING WHICH TOGETHER WITH SAID TROUGH STRUCTURE DURING A REVOLUTION OF SAID ROTARY PISTON CONFINES A CHAMBER OF MINIMUM VOLUME, SAID NOZZLE MEANS INJECTING FUEL INTO EACH TROUGH STRUCTURE SUBSTANTIALLY IN THE DIRECTION OF THE LONGITUDINAL AXIS OF THE RESPECTIVE TROUGH STRUCTURE AND THE SIDE WALLS OF SAID TROUGH STRUCTURES DIVERGING IN THE DIRECTION OF FUEL INJECTION SO AS TO BE FREE AT LEAST TO THE MAJOR EXTENT FROM CONTACT WITH THE FUEL JET EJECTED BY SAID NOZZLE MEANS INTO THE CHAMBER CONFINED BY THE RESPECTIVE TROUGH STRUCTURE AND THE RESPECTIVE ADJACENT HOUSING INNER CONTOUR, THE EFFECTIVE COMPRESSION RATIO OF SAID MACHINE BEING AT LEAST 10:1, AND THE MAXIMUM TURNING ANGLE OF THE SEALING STRIP MEANS BEING AT LEAST 21*, SAID TURNING ANGLE BEING DEFINED BY THE EQUATION: