Fuel injection pump

Claim 1

A FUEL DISTRIBUTOR COMPRISING A CYLINDER HAVING A CLOSED END AND A PISTON ROTATABLY ANND SLIDABLY DISPOSED THEREIN, ONE END PORTION HAVING A LONGITUDINAL AND RADIALLY OPENING SLOT FORMED THEREIN OPENING THROUGH THE END FACE OF SAID ONE END PORTION OF SAID PISTON, SAID CLOSED END OF SAID CYLINDER DEFINING A PUMPING CHAMBER, A FIRST SET OF INLET AND OUTLET PORTS FORMED IN SAID CLOSED END OF SAID CYLINDER SPACED CIRCUMPERENTIALLY THEREABOUT AND COMMUNICATING WITH SAID PUMPING CHAMBER, MEANS OPERATIVELY CONNECTED TO SAID PISTON AND OPERATIVE TO EFFECT UNIDIRECTIONAL RETATION OF SAID PISTON FOR SUCCESSIVELY BRINGING SAID SLOT INTO REGISTRY WITH SAID INLET AND OUTLET PORTS, THE OTHER END OF SAID CYLINDER BEING ALSO CLOSED AND DEFINING A SECOND PUMPING CHAMBER, SAID CYLINDER ALSO INCLUDING A SECOND SET OF INLET AND OUTLET PORTS SPACED CIRCUMFERENTIALLY THEREABOUT AND COMMUNICATING WITH SAID SECOND PUMPING CHAMBER, AND THE OTHER END PORTION OF SAID PISTON ALSO HAVING A LONGITUDINAL AND RADIALLY OUTWARDLY OPENING SLOT FORMED THEREIN OPENING THROUGH THE END FACE OF THE OTHER END PORTION OF SAID PISTON AND REGISTRABLE WITH THE LAST MENTIONED INLET AND OUTLET PORTS, SAID SETS OF PORTS EACH BEING DISPOSED BETWEEN PARALLEL PLANES EXTENDING TRANSVERSELY OF SAID CYLINDER AND DEFINING THE REMOTE LIMIT POSITIONS OF MOVEMENT OF THE CORRESPONDING SLOT.