COMPACT HYDRAULIC MECHANISM WITH RADIAL PISTONS
European Patent Office Patent
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Abstract
The mechanism comprises a cylinder block (10) with radial pistons, the block rotating in a fixed casing (1A, 1B), a distribution cover (1A) forming part of the casing and having admission and exhaust pipes (3A, 3B) extending between an outer face (1'A) and an inner face (1'A) of the cover. The internal distributor (22) has distribution pipes (24A, 24B) selectively connected to the admission and exhaust pipes, opening onto a distribution face (22B) which is perpendicular to the axis of rotation and which is arranged against the communication face (10A) of the cylinder block allowing the distribution pipes to communicate with the pipes of cylinders (18). On a transverse face (11) of the cylinder block (10) there is, in an area (Z) bounded radially on the outside by bottom parts (12A) of the cylinders (12), an axial depression (30) containing at least part of the distributor (22) containing the distribution face (22B), and the communication face (10A) is formed in a planar surface of this depression (30).
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