Piston engine balancing

Details Piston engine balancing Piston engine balancing

F - Mech Eng,Light,Heat,Weapons

02

B

F02B 75/26 (2006.01) F01B 3/00 (2006.01) F01B 3/10 (2006.01) F02B 75/04 (2006.01) F16H 23/08 (2006.01)

Patent

CA 2342932

A piston assembly includes first and second double-ended pistons, a transition arm coupled to each of the pistons, and a rotating member rotating in a first direction about a first axis. The transition arm includes a drive member coupled to the rotating member off-axis of the rotating member. A first counterbalance is mounted to rotate in the first direction, and a second counterbalance is mounted to rotate in a second direction opposite the first direction. The second counterbalance rotates about a second axis offset and parallel to the first axis. Alternatively, the second counterbalance rotates about the first axis. A method of counterbalancing a piston assembly includes mounting a first counterbalance to the piston assembly to rotate in the first direction, and mounting a second counterbalance to the piston assembly to rotate in the second direction.

Un ensemble pistons comprend un premier et un second piston double, un bras de transition raccordé à chacun des pistons, enfin un élément rotatif tournant dans une première direction autour d'un premier axe. Le bras de transition comporte un élément d'entraînement raccordé à l'élément rotatif en dehors de l'axe de l'élément rotatif. Un premier et un second contrepoids sont montés de façon qu'ils tournent respectivement dans une première et une seconde direction opposée. Le second contrepoids tourne autour d'un second axe décalé par rapport au premier axe et parallèle à celui-ci. Dans une variante, le second contrepoids tourne autour du premier axe. Un procédé d'équilibrage d'un ensemble pistons consiste à monter un premier contrepoids piston sur l'ensemble pistons de façon qu'il tourne dans la première direction, et à monter un second contrepoids sur l'ensemble pistons de façon qu'il tourne dans la seconde direction.

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