| 摘要 |
A pair of cylindrical rotor are mounted for rotation within a stator and the rotor includes a plurality of cylindrical bores annularly around each axis thereof and parallel to the stator bore. Pistons reciprocate within these bores and connecting rods or links of the pistons engage within the profile of an annular cam secured centrally to the stator so that as the rotors rotate, the pistons reciprocate due to the cam profile. By providing a set of piston and cylinders at each end, a pair of rotors and a centrally located cam, balance is achieved. The cycle can be of a diesel type with a fuel injection or of the gasoline/air mixture type with conventional spark plugs. Of importance, is the ease with which the expansion ratio can be made greater than the compression ratio thus utilizing more of the energy normally expelled and wasted in exhaust gases with the conventional cycles. Furthermore, timing is easily adjusted by rotating the cams and the compression ratio can be varied by moving the two cams further apart or closer together.
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