Side intake for a rotary internal combustion engine

Claim 1

An improved fuel and air intake assembly for a rotary internal combustion engine having a housing forming at least one cavity within which a rotor is supported for planetary movement and which rotor defines with the housing a plurality of working chambers which successively expand and contract in volumetric size as the rotor rotates within said cavity, the fuel and air intake assembly comprising: a. a side intake port means in the housing; b. an intake passageway in the housing communicating at one end with said side intake port means and at the opposite end with a source of combustible gaseous mixture; c. a variable throttle-valve means disposed upstream of said side intake port means and in relatively close spaced relation to said side intake port means; d. said throttle-valve means including a linearly movable open ended hollow member axially slidable within said intake passageway, a fixed member disposed to extend into one end of said hollow member to define with said one end a restricted passage to receive and accelerate said combustible gaseous mixture flowing from said source thereof to the side intake port means and an actuating means for moving said movable member relative to the fixed member to vary the size of the flow area of the restricted passage.