Improvements in axial piston rotary engines

F - Mech Eng,Light,Heat,Weapons – 01 – B

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F01B 3/04 (2006.01) F02B 57/00 (2006.01) F02B 75/26 (2006.01)

Patent

CA 2263332

A rotary internal combustion engine (200) of the type having a rotor assembly (216) supported in a housing (210) for rotation about a longitudinal axis (217), said housing having two spaced apart end plates (212, 213) and said axis being the axis of rotation of an output shaft (218) operatively connected at one end to said rotor assembly, the other end being free and passing through an aperture in one of said end plates, said rotor assembly including a plurality of pistons (231 to 238) mounted for reciprocating movement in respective cylinders (228) arranged in spaced relation around said longitudinal axis, and cam follower means (254) operatively connected to each piston and adapted to coact with undulating cam track means (225) supported around said axis of rotation and between said end plates, means (215) being provided for conveying combustible fuel to, and for conveying exhaust gases from the operative ends of the cylinders whereby cyclical combustion of said fuel in said cylinders imparts reciprocation to said pistons with resultant thrust against said cam track means so as to cause rotation of said rotor assembly (216) and output shaft (218); characterised in that said undulating cam track means includes an annular track mounted to a support stem or shaft (219) disposed substantially centrally thereof and extending in the direction of said longitudinal axis, said support stem or shaft being supported at one end by the other of said end plates (213) and the axis of said annular cam track means being the axis of rotation of said rotor assembly.

Moteur rotatif à combustion interne (200) du type possédant un ensemble rotor (216) supporté par un châssis (210),de manière à tourner autour d'un axe longitudinal (217). Le châssis présente deux plaques terminales espacées (212, 213) et l'axe longitudinale est l'axe de rotation d'un arbre principal (218). Ce dernier est relié de manière opératoire à une extrémité de l'ensemble rotor, l'autre extrémité restant libre, et passe à travers une ouverture ménagée dans une des plaques terminales. L'ensemble rotor comprend une pluralité de pistons (213 à 238) dont la position autorise un mouvement alternatif dans les cylindres respectifs (228), disposés autour de l'axe longitudinal et espacés les uns des autres, et un moyen contre-came (254) coopérant avec chaque piston et conçu pour coagir avec un moyen de guidage de came ondulant (225) entourant de l'axe de rotation entre les plaques terminales. Un moyen (215) permet d'amener le carburant vers les extrémités opérationnelles des cylindres et d'évacuer les gaz d'échappement de ces dernières, la combustion cyclique du carburant dans les cylindres impartissant un mouvement alternatif aux pistons, la poussée résultante sur le moyen de guidage de came provoquant la rotation de l'ensemble rotor (216) et de l'arbre principal (218). Ce système est caractérisé par le fait que le moyen de guidage de came ondulant est formé d'un élément annulaire monté sur une tige ou un arbre de support (219) disposé sensiblement au centre de ce dernier et orienté dans le sens de l'axe longitudinal. Cette tige ou cet arbre de support est maintenu à une extrémité par l'autre plaque terminale (213) et l'axe de l'élément de guidage annulaire correspondant à l'axe de rotation de l'ensemble rotor.

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