Variable compression piston assembly

F - Mech Eng,Light,Heat,Weapons – 02 – B

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Details

F02B 75/04 (2006.01) F02B 75/26 (2006.01)

Patent

CA 2300111

A variable compression piston assembly (300) includes a plurality of pistons, e.g., double ended pistons (330, 332), a rotating member, e.g., a flywheel (322) or a zero-stroke pivot member, coupled to the transition arm (310) and configured for movement relative to the transition arm-(310) along the axis of rotation of the rotating member (322). The movement of the rotating member (322) relative to the transition arm (310) changes the compression ratio of the piston assembly (330, 332). The transition arm (310) is coupled to each of the double ended pistons (330, 332) at approximately a center of each piston (330, 332). The movement of the rotating member (322) relative to the transition arm (310) changes the compression ratio and displacement of each double ended piston (330, 332).

Selon cette invention, un ensemble de pistons à compression variable (300) comprend plusieurs pistons, p.ex. des pistons à deux extrémités (330, 332), un bras de transfert relié à chacun des pistons, et un élément rotatif tel qu'un volant (322) ou un élément pivotant à course nulle, qui est relié au bras de transfert (310) et se déplace par rapport audit bras de transfert (310) le long de l'axe de rotation de l'élément rotatif (322). Le mouvement de l'élément rotatif (322) par rapport au bras de transfert (310) modifie le taux de compression de l'ensemble de pistons (330, 332). Le bras de transition (310) est relié à chacun des pistons à deux extrémités (330, 332), à peu près au centre de chaque piston (330, 332). Le mouvement de l'élément rotatif (322) par rapport au bras de transfert (310) modifie le taux de compression et la cylindrée de chaque piston à deux extrémités (330, 332).

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