Internal-combustion engines – Valved piston – Charge passes from crankcase through valve in piston
Patent
1977-07-18
1979-05-29
Myhre, Charles J.
Internal-combustion engines
Valved piston
Charge passes from crankcase through valve in piston
123 4135, 123 50R, 123 54B, 123 56AB, 123 71R, 123 74A, F01L 1102, F02B 5900
Patent
active
041564103
ABSTRACT:
An internal combustion engine having a housing defining a pair of axially aligned and opposing cylinders with a lubricant chamber therebetween, a stationary piston in the housing extending through the lubricant chamber and having opposite ends disposed within the aligned cylinders, and a hollow cylindrical piston slidably received within the housing and around the stationary piston for reciprocal movement thereby forming a pair of first variable volume chambers between it and the aligned cylinders and a pair of second variable volume chambers between it and the stationary piston. A carburetor communicates with the second chambers through longitudinal passageways in the stationary piston so as to admit a charge of combustible fuel therein which is compressed and then injected into the first chambers for recompression and subsequent combustion, the compression and combustion cycles for the chambers on opposite ends being 180.degree. out of phase. Lubrication for the sliding surfaces between the pistons and the moveable piston and cylinders is accomplished by means of ports which extend through the piston from the crankcase to the stationary piston.
REFERENCES:
patent: 864586 (1907-08-01), Wottring
patent: 1425054 (1922-08-01), Ricardo
patent: 2319427 (1943-05-01), Morgan
patent: 3177853 (1965-04-01), Hendershot
patent: 3398728 (1968-08-01), Hardman
Feinberg Craig R.
Myhre Charles J.
Ran-Z, Inc.
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