Importance

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Abstract

For a hypocycloidal crank mechanism for piston engines, particularly for internal-combustion engines with opposed cylinder banks, which, in a rotationally movable manner arranged on a crank pin of a crankshaft, comprises two lifting eccentrics for the oscillating control of two piston rods and one guiding eccentric arranged between the lifting eccentrics, for the rotationally movable engagement into a straight-guiding element of an orthogonal straight-line mechanism, for increasing the loadability of this crank mechanism, it is suggested that the three eccentrics form a one-piece component with at least one connection shoulder which is provided between a lifting eccentric and the adjacent guiding eccentric and which has such a dimension in the crank pin direction that the guiding element with the circumferentially closed opening guided over the shoulder-side lifting eccentric can be displaced in the area of the connection shoulder transversely to the guiding eccentric for the rotationally movable positioning of the guiding element on the guiding eccentric.

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First Claim