Internal-combustion engines – Rotary – With compression – combustion – and expansion in a single...
Patent
1977-04-20
1979-12-18
Koczo, Michael
Internal-combustion engines
Rotary
With compression, combustion, and expansion in a single...
418245, F02B 5300
Patent
active
041789008
ABSTRACT:
A rotary internal combustion engine comprising a generally cylindrical stator member having two pairs of sockets located in the interior peripheral wall thereof, and a rotor member mounted to rotate within the stator member. Two pairs of opposing wedges are pivotally mounted at their vertices on the interior peripheral wall of the stator member to pivot in and out of respective ones of the sockets as the rotor member is caused to rotate within the stator member. The rotor member has an outermost periphery which, in cooperation with the peripheral wall of the stator member and the two pairs of pivotal wedges, define at selected paint in time and for brief a combustion cavity and a compression cavity therebetween. The instantaneous combustion cavity and compression cavity are disposed on opposite sides of the stator member adjacent the peripheral wall thereof. A cam track is defined in the sides of the rotor member to guide cam followers extending from lugs on opposite sides of each wedge such that the wedges are caused to pivot in an out of the sockets and to maintain sliding contact with the outer periphery of the rotor member. As the rotor member rotates and the wedges pivot in and out of the sockets, the present compression cavity and the present combustion cavity successively increase and decrease. A fuel mixture is introduced into the instantaneous compression cavity as it enlarges. As the rotor member continues to rotate, this cavity and the fuel mixture therein is compressed, and the fuel mixture is ignited at or just prior to the time the mixture is fully compressed, to achieve high power efficiency. Igniting the fuel mixture causes the rotation by creating unbalanced tangential components of pressure upon inclined portions of the outermost periphery of the rotor member. Shortly after combustion of the fuel mixture, the combustion products are exhausted from the current combustion chamber. The compression, combustion and expansion of the fuel mixture always occurs between the opposing bases of the wedges, which bases are each configured to direct the pressure force to a pivotal pin at the opposite vertex of each wedge. Thus, all bending stresses and flexural deformations of the wedges are virtually prevented, thus substantially eliminating the traditional major problem of vane wear and distortion in rotary engine design.
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Foster Lynn G.
Koczo Michael
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