Externally mounted, direct driven rotary units for prime movers

Claim 1

A ROTARY UNIT TO BE MOUNTED ON, AND DIRECTLY DRIVEN BY, A PRIME MOVER COMPRISING AN AXIALLY EXTENDING CASING HAVING AN AXIALLY INNER END WITH A CENTRAL OPENING AND MOUNTING MEANS, SAID CASING HAVING AN AXIALLY OUTER END, A BEARING UNIT OF THE ROLLING CONTACT ELEMENT TYPE MOUNTED IN SAID AXIALLY OUTER END, AN INWARDLY EXTENDING ROTOR IN SAID CASING AND ROTATABLY MOUNTED IN SAID BEARING UNIT, SAID BEARING UNIT HAVING AN INNER SEAL AND OUTER GREASE RETAINING MEANS TO RETAIN GREASE PACKED THEREIN, A ROTOR UNIT IN SAID CASING AND ROTATABLY MOUNTED IN SAID BEARING UNIT, DRIVING SHAFT MEANS CONNECTED TO SAID ROTOR UNIT AND EXTENDING INWARDLY THROUGH SAID CASING INNER END OPENING TO BE DRIVEN BY SAID PRIME MOVER, SAID OPENING PROVIDING AN OPEN AND UNSEALED ACCESS FOR THE LUBRICATING OIL OF SAID PRIME MOVER INTO SAID CASING, SAID ROTOR UNIT BEING OF LARGER DIAMETER THAN SAID DRIVING SHAFT MEANS AND EXTENDING CLOSE TO SAID INNER END OPENING TO ACT AS AN OIL SLINGER TO FLING ENTERING ENGINE LUBRICATING OIL RADIALLY OUTWARD AND PREVENT ITS REACHING SAID GREASE PACKED BEARING UNIT, SAID BEARING UNIT AT SAID AXIALLY OUTER END BEING THE ONLY BEARING OR LOCATING SUPPORT FOR SAID ROTOR UNIT.