Internal combustion engine and operating cycle

Details Internal combustion engine and operating cycle Internal combustion engine and operating cycle

1975-02-04

1977-05-10

Croyle, Carlton R.

Internal-combustion engines

Rotating cylinder

Parallel to shaft

F02B 5700

Patent

active

040221679

ABSTRACT:
A pair of cylindrical rotors are mounted for rotation within a stator and each rotor including a plurality of cylindrical bores annularly around the 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 a pair of annular cams secured to the stator at opposite ends thereof so that as the rotors rotate, the pistons reciprocate due to the cam profile. By providing a set of pistons and cylinders, on each side of a central common cylinder head at each end, a pair of rotors and a pair of cams one at each end of the stator, balance is achieved. A common combustion chamber is provided in the cylinder head for the pistons on the opposite sides of the cylinder head. 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.

REFERENCES:
patent: 927297 (1909-07-01), Tuckfield
patent: 1181463 (1916-05-01), La Fontaine
patent: 1255664 (1918-02-01), Syger
patent: 1389873 (1921-09-01), Hult
patent: 1569525 (1926-01-01), Owens
patent: 1628100 (1927-05-01), Bacon
patent: 1666539 (1928-04-01), Michell
patent: 1793107 (1931-02-01), Livingston
patent: 2556585 (1951-06-01), Jarvinen
patent: 2783751 (1957-03-01), Karlan
patent: 3456630 (1969-07-01), Karlan

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