Internal-combustion engines – Rotating cylinder – Radial
Patent
1977-09-30
1979-01-30
Croyle, Carlton R.
Internal-combustion engines
Rotating cylinder
Radial
123 44D, F02B 5706
Patent
active
041366468
ABSTRACT:
A two cycle rotary internal combustion engine of the fuel injection type. A rotor having three radially disposed cylinders in equally spaced angular relation in a circular rim rotates in sealed relation within a cylindrical stationary outer housing. The respective pistons in the cylinders are connected to the same crank arm of the crankshaft, which is in turn connected, through a planetary gear mechanism, to rotate in the same direction and at a three-to-one ratio of speed to the rotor. The outer housing has two exhaust ports and two fuel injectors in angularly spaced relation to which the cylinders are opened in timed sequence. Fresh air is supplied under pressure into the closed housing in surrounding relation to the cylinders for cooling the cylinders and for preheating scavenging air admitted to the interior of the cylinders through ports therein. Jets of air, provided by a hole in the rim behind each cylinder, serve to assist in combustion of hydrocarbons in the exhaust gases and also dilution of particulates. To reduce friction of the cylinder rings on the housing, due to centrifugal force, cylinder rings are slanted in a conforming groove to cause the component of compression pressure in the cylinders acting on the rings to oppose centrifugal force on the rings. In a modified embodiment, the crankshaft and rotor rotate reversely and in three-to-one speed ratio with four exhaust ports and four fuel injectors in substantial quadrature relation in the housing. A modified form of cylinder seal ring comprises a composite of a plurality of separate split rings assembled into close fitting tapered concentric relation.
REFERENCES:
patent: 743230 (1903-11-01), Blasdell
patent: 1705130 (1929-03-01), McKlusky
patent: 2242231 (1941-05-01), Cantoni
patent: 2399486 (1946-04-01), Harries
patent: 3599612 (1971-08-01), Villella
patent: 4077365 (1978-03-01), Schlueter
Croyle Carlton R.
Koczo, Jr. Michael
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