Abstract:
A rotary valve system for a motor and the like includes a flow conduit and rotary valve means interposed in the flow conduit. Intermittent sealing means are provided for preventing flow through the flow conduit, comprising a sealing surface intermittently positionable in stationary, sealing relationship across the conduit. Means are also provided for moving the sealing surface into such stationary sealing relationship with the flow conduit, and out of sealing relationship with the flow conduit in a manner correlating with the operation of the rotary valve means, to facilitate sealing as the valve operates.
Abstract:
A valve throttled internal combustion engine having inlet valve means for each cylinder including a poppet valve and a throttle valve, each of which independently cooperates with the combustion chamber inlet port to control the flow of combustible mixture thereto. The poppet valve actuating mechanism moves it cyclically through a fixed stroke so that it controls the timing of the inlet valve openings while the throttle valve is mechanically actuated by the engine operator to vary the maximum size of the inlet port flow passage and thereby the extent of the inlet valve openings.