Mechanism employing fluid under pressure provided with a rotor,

Details Mechanism employing fluid under pressure provided with a rotor, Mechanism employing fluid under pressure provided with a rotor,

1988-10-13

1991-05-28

Smith, Leonard E.

Motors: expansible chamber type

Three or more cylinders arranged in parallel radial or...

Radially disposed cylinders

417273, 417462, F01B 1306, F04B 1902

Patent

active

050184334

ABSTRACT:
This invention relates to a mechanism employing fluid under pressure, comprising: a stator; a rotor; a device for assembling the rotor with respect to the stator, effecting relative rotational assembly of these two elements about a geometrical axis, and ensuring axial holding of said two elements in position, in the two opposite directions, parallel to said geometrical axis; a reaction cam fast with a first of said elements; cylinders made in the second element and disposed radially with respect to said geometrical axis; and pistons mounted in said cylinders and abutting on said cam. According to the invention, the assembly device is constituted by a single bearing which comprises: two rolling tracks made directly on an extension of the reaction cam itself, and on an extension of the element itself in which the cylinders are made, respectively; rolling members disposed between the tracks, capable of abutting on these two tracks so as to ensure axial holding of the rotor with respect to the stator. One application is the production of a compact hydraulic motor.

REFERENCES:
patent: 932033 (1909-08-01), Krone
patent: 4157056 (1979-06-01), Allart et al.

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