Combined engine accessory drive and housing therefor

Claim 1

AN ACCESSORY DRIVE FOR AN INTERNAL COMBUSTION ENGINE COMPRISING A POSITIVE DISPLACEMENT BLOWER INCLUDING TWO COUNTERROTATING IMPELLERS OF SUBSTANTIAL ROTATIONAL INERTIAL MASS, CENTRIFUGAL GOVERNOR MEANS DRIVINGLY CONNECTED TO ONE END OF ONE OF SAID IMPELLERS AND OF LIMITED ROTATIONAL INERTIAL MASS RELATIVE TO THAT OF SAID IMPELLERS AND PARTICULARLY SUSCEPTIBLE TO VARIATIONS IN ITS DRIVEN SPEED, FUEL CIRCULATING MEANS OF LIMITED ROTATIONAL INERTIAL MASS DRIVINGLY CONNECTED TO THE ADJACENT END OF THE OTHER OF SAID IMPELLERS, BLOWER TIMING GEAR MEANS ASSOCIATED WITH THE OPPOSITE ENDS OF SAID IMPELLERS TO SYNCHRONOUSLY DRIVE SAID IMPELLERS IN PHASED RELATION TO EACH OTHER, AN ENGINE TIMING GEAR HOUSING MOUNTABLE AT ONE END OF THE ENGINE IN CLOSELY SPACED RELATION TO THE DRIVE GEAR END OF SAID BLOWER, SAID TIMING GEAR HOUSING HAVING AN OPENING THEREIN IN AXIAL ALIGNMENT WITH ONE OF SAID BLOWER GEARS, A CLOSURE MEMBER SUPPORTED IN SAID OPENING AND HAVING A HOLLOW JOURNAL HUB PROJECTING THEREFROM INTO SAID TIMING GEAR HOUSING, AN ENGINE-DRIVEN GEAR JOURNALED ON SAID JOURNAL HUB WITHIN SAID TIMING GEAR HOUSING, A FIRST RESILIENT DRIVE MEANS INCLUDING A DRIVE MEMBER FLEXIBLY SECURED TO THE END OF SAID ENGINE-DRIVEN GEAR OPPOSITE SAID CLOSURE MEMBER FOR ANGULAR AND LONGITUDINAL MOVEMENT WITH RESPECT TO THE ROTATIVE AXIS OF SAID ENGINE-DRIVEN GEAR, A QUILL SHAFT DRIVINGLY SPLINED AT ONE END TO SAID DRIVE MEMBER AND EXTENDING THROUGH SAID HOLLOW JOURNAL HUB IN SPACED RELATION THERETO, AND A SECOND RESILIENT DRIVE MEANS INTERPOSED BETWEEN THE OTHER END OF SAID QUILL SHAFT AND SAID ONE BLOWER GEAR AND OPERABLE TO ISOLATE TORSIONAL FLUCTUATIONS APPLIED TO SAID ENGINE-DRIVEN GEAR FROM SAID BLOWER, GOVERNOR AND FUEL CIRCULATING MEANS.