Internal combustion engines and power transmission therefor

Claim 1

IN OR FOR AN INTERNAL COMBUSTION ENGINE AND TRANSMISSION APPARATUS COMPRISING FREE PISTONS OPERATING IN CYLINDERS, THE PROVISION OF AT LEAST ONE PUMP HAVING A PUMP PISTON CONNECTED TO SAID FREE PISTONS AND OPERATING IN A PUMP CYLINDER, THE FREE PISTONS AND THEIR CYLINDERS BEING ARRANGED IN ONE OR MORE OPPOSED PAIRS, THE PUMP PISTON BEING CONNECTED TO BOTH THE FREE PISTONS, MEANS FOR INTRODUCING FLUID INTO THE PUMP CYLINDER, SAID MEANS INCLUDING INLET VALVES, OUTLETS FOR THE FLUID FROM SAID PUMP CYLINDER, SAID OUTLETS INCLUDING OUTLET VALVES, AT LEAST ONE MOVABLE PART CONSTITUTING AN INERTIA MEMBER ACTED UPON BY THE PRESSURE DEVELOPED BY MOVEMENT OF SAID PUMP PISTON CAUSING LIQUID TO BE DISPLACED FIRST AT ONE END OF THE PUMP INERTIA MEMBER, AND THEN AT THE OTHER END OF THE PUMP INERTIA MEMBER, THE INTERIA MEMBER BEING SO CONNECTED WITH THE PUMP THAT VARIATION IN THE POSITION OF THE INERTIA MEMBER VARIES THE OUTPUT OF THE PUMP AND OUTPUT DRIVING MEANS ACTUATED BY THE PUMP OUTPUT; SAID INERTIA MEMBER BEING VARIABLY POSITIONED DEPENDING ON THE PRESSURE BUILT UP BY THE PUMP IN THE OUTLETS WHICH IS DEPENDENT ON THE LOAD ON THE OUTPUT DRIVING MEANS, AND ON THE SPEED OF THE PUMP PISTON AND ON THE MASS OF THE INERTIA MEMBER, WHEREBY LIQUID CAN FLOW THROUGH THE OUTLETS TO A VARIABLE EXTENT AND CORRESPONDINGLY DISPLACE SAID INERTIA MEMBER SO THAT DELIVERY THROUGH THE OUTLETS WILL BE DEPENDENT ON THE LOAD ON THE OUTPUT DRIVING MEANS AND ON THE SPEED OF OPERATION OF THE PUMP PISTON AND ON THE MASS OF SAID INERTIA MEMBER.