Distributor valve

Claim 1

A REVERSE CYCLE VALVE COMPRISING A CHEST HAVING AN INTERNAL CHAMBER OF A FLAT PARALLELPIPED SHAPED AND INCLUDING A PRESSURE PLATE AND A PORT-FORMING PLATE, PARALLEL ONE WITH THE OTHER, AND A VALVE MEMBER OF A FLAT PARALLELPIPED SHAPED AND HAVING TWO FACES SLIDABLY ENGAGING SAID PLATES, RESPECTIVELY; THE PORT-FORMING PLATE HAVING A CENTRAL PORT, TWO END PORTS, ONE ON EACH SIDE OF SAID CENTRAL PORT, AND TWO INTERMEDIATE PORTS, EACH BETWEEN THE CENTRAL PORT AND ONE OF THE END PORTS; THE FACE OF SAID VALVE MEMBER IN CONTACT WITH THE SAID PORT-FORMING PLATE HAVING THREE RECESSES COVERING RESPECTIVELY SAID CENTRAL PORT AND SAID TWO INTERMEDIATE PORTS IN THE NEUTRAL POSITION OF THE SLIDE VALVE; SAID VALVE MEMBER HAVING THREE CYLINDERS RESPECTIVELY OPENING ADJACENT SAID PRESSURE PLATE ON THREE PORTIONS OF SAID PRESSURE PLATE, SAID PORTIONS BEING OPPOSITE SAID CENTRAL PORT AND SAID INTERMEDIATE PORTS IN THE NEUTRAL POSITION OF THE VALVE MEMBER; A PISTON DISPOSED IN EACH OF SAID CYLINDERS AND DEFINING A FIRST CHAMBER IN EACH CORRESPONDING CYLINDER; EACH POSITION HAVING A FACE ENGAGING SAID PRESSURE PLATE AND INCLUDING A RECESS FORMED IN SAID FACE, EACH PISTON HAVING A ROD GUIDED IN A SOCKET FORMED AT THE BOTTOM OF THE CORRESPONDING CYLINDER, EACH ROD DEFINING IN THE CORRESPINDING SOCKET A SECOND CHAMBER; A SPRING IN EACH OF THE SAID FIRST CHAMBERS BEING DISPOSED SO AS TO URGE THE CORRESPONDING PISTON ONTO SAID PRESSURE PLATE; EACH OF THE SAID PISTONS AND THE CORRESPONDING PISTON RODS HAVING INTERNAL CONDUITS IN SAID VALVE MEMBER TO PISTON RECESS INTO COMMUNICATION WITH THE CORRESPONDING SECOND CHAMBER; AND CONDUITS IN SAID VALVE MEMBER TO PUT EACH FIRST AND SECOND CHAMBER IN COMMUNICATION WITH THE CORRESPONDING RECESS FORMED IN THE FACE OF SAID VALVE MEMBER; THE WHOLE FORMED BY THE CHEST AND THE VALVE MEMBER BEING SYMMETRICAL IN RELATION TO A PERPENDICULAR PLANE AS REGARDS THE DIRECTION OF MOVEMENT OF THE DRIVE MEMBER WHEN THE DRIVE MEMBER IS IN ITS NEUTRAL POSITION.