Slide shoe arrangement, particularly for axial and radial piston

Details Slide shoe arrangement, particularly for axial and radial piston Slide shoe arrangement, particularly for axial and radial piston

1979-05-18

1981-04-14

Freeh, William L.

Motors: expansible chamber type

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

Radially disposed cylinders

F01B 1306

Patent

active

042612500

ABSTRACT:
The invention relates to the slide shoe arrangement of a radial piston type of machine. This type of machine has a housing with a rotatable shaft and a piston carrier mounted on the shaft. Pistons in the carrier have reciprocal and radial movement relative to the carrier and shoes attached to the pistons have sliding engagement with an annularly shaped, eccentrically adjustable, track which surrounds the carrier. The track has a spherical surface portion with a predetermined radius R1. The shoes have spherically shaped surface portions of radius R2 which engage the track, radii R2 being larger than radius R 2 to form tapered gap chambers between the spherical shoe surfaces and the spherical track surface. The shoe portions may have annularly shaped flanges contacting the track surface through the spherical shoe surfaces. The flanges are resiliently connected to the shoe portions. A modification involves providing passages in the shoe portions which connect the gap chambers with ball and socket connections between the pistons and the shoes.

REFERENCES:
patent: 2721519 (1955-10-01), Henrichson
patent: 3521532 (1970-07-01), Espig et al.
patent: 3650180 (1972-03-01), Gantschnigg
patent: 3793923 (1974-02-01), Smith
patent: 3863997 (1975-02-01), Davis
patent: 3933082 (1976-01-01), Moley

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