Internal combustion engine with rotary valves

Details Internal combustion engine with rotary valves Internal combustion engine with rotary valves

1993-02-01

1994-05-31

Kamen, Noah P.

Internal-combustion engines

Valve

Rotary

1231908, F01L 702

Patent

active

053159691

ABSTRACT:
An improved internal combustion engine with rotary valves. The engine includes a cylinder head above each cylinder and there is a single opening located in the cylinder head above each piston for use as an intake and as an exhaust port. A rotary valve member is in the form of a hollow cylinder, the outer surface of which abuts the outer surface of the single opening, the rotary valve has an intake port formed through the wall thereof and an exhaust port also formed through the sidewall, the cylinder includes an inner wall dividing the interior of the rotary valve cylinder into an exhaust compartment and an intake compartment. The rotary member has an opening at one end which comprises the intake port and an opening at an opposite end which comprises the exhaust port. Means are provided for rotating the rotary valve in a timed manner so that as the piston moves downwardly in an intake stroke, the intake port is passing over the single opening permitting an air fuel mixture to be drawn through the intake end the rotary valve and into the cylinder. As the piston begins to move upwardly in a compression stroke, the cylindrical sidewall of the rotary valve is passing over the single opening which is also the case as the piston is moving downwardly in a power stroke. Then as the piston begins moving up in an exhaust stroke, the exhaust port passes over the single opening causing the exhaust gases to flow out of the exhaust end of the rotary valve member.

REFERENCES:
patent: 2048134 (1936-07-01), Montalto
patent: 2158386 (1939-05-01), Sykes
patent: 2211288 (1940-08-01), Oesch
patent: 3871340 (1975-03-01), Zimmerman
patent: 3896781 (1975-07-01), Smith
patent: 3977303 (1976-08-01), Baker
patent: 4782801 (1988-11-01), Ficht et al.
patent: 5025349 (1991-10-01), Buelna
patent: 5074265 (1991-12-01), Ristin et al.

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