Rotary valve system for motors and the like having improved seal

Rotary valve timing apparatus

Rotary valve with integrated combustion chamber

Rotary valve with seal for internal combustion engine

Rotary valve with seal supporting tongue

Rotary valves

Rotary valves

Rotary valves

Rotary valves and gear timing

Rotary valving unit for an internal combustion engine

Rotary vaned valves

Rotatable shrouded valve for improving a scavenging of 2-stroke

Rotative combustion chamber engine

Seal device for valve rod of an internal-combustion engine

Sealing arrangement for a rotary slide valve

Sealing element for a rotary timing system of internal-combustio

Sealing means for rotary valves

Sealing ring for reciprocating machine parts

Sealing structure of a rotary valve in an internal combustion en

Secondary combustion chamber systems and apparati for internal c