Flexible cylinder-head internal combustion engine

Claim 1

A two cyle internal combustion engine of the variable compression ratio type, comprising: (a) cylinder means with opposed piston means reciprocally mounted therein for defining combustion chamber means therein and between at opposing top dead centers of said piston means; (b) air, fuel, and exhaust port means defined in said cylinder means, and closer to one end than to another, for control of all said port means by said piston means mounted in said port defining cylinder means part; (c) unequal crank throws respectively mounted adjacent oppositely disposed ends of said cylinder means on respective centers of rotation similar and equally offset from said cylinder means center axis, with the shorter throw crank means mounted adjacent said port means-defining part of said cylinder means, for eliminating the coincidence of respective piston and crank means' top and bottom dead centers, and for decreasing the angular displacement of said crank means on one side of said cylinder means center axis and increasing it on the other side; (d) unequal connecting rod means pivotally connecting said piston means with said offset crank means, the shorter of said connecting rod means connecting said shorter throw crank means to said piston means in said port means-defining cylinder part for controlling all said port means thereby, and said piston and crank means being connected in relative positions for a short connecting rod piston means to operate as a valve opening and closing mechanism that provides it own power of operation and also contributes to the overall power of said engine, and cooperates with a longer connecting rod piston means in coordinating the beinnings and endings of maximum linear movement thereof with the endings and beginnings of minimum linear movement of said shorter connecting rod piston means for maximum efficiency im mechanical advantage of the power cycle and in valving efficiency of two cycle operation, and (e) connecting means mounted between said crank means for each to turn at the same revolutions per minute, and for varying the relative positions of said piston means in the respective cylinder means for changing compression ratio in said combustion chamber.