Gear wheel assembly for hydraulic purposes, and method assemblin

Details Gear wheel assembly for hydraulic purposes, and method assemblin Gear wheel assembly for hydraulic purposes, and method assemblin

1992-04-07

1993-06-01

Bertsch, Richard A.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

F04C 1800

Patent

active

052154530

ABSTRACT:
A gear wheel assembly of the type having an externally toothed gear wheel and an internally toothed ring wheel with the gear wheel having one less tooth than the ring wheel and the wheels having eccentrically spaced axes with said gear wheel being rotatable about the gear wheel axis which in turn is orbitable about the ring wheel axis. Each tooth of the gear wheel has a flank on each side of the tip thereof with each said flank having a shallow recess formed thereon. Each such recess has three successive curved sections with each such recess starting and ending with the same tangent as the respective adjacent part of the associated flank. With this gear construction an automatic braking action is generated in the absence of hydraulic pressure.

REFERENCES:
patent: 3876343 (1975-04-01), Giversen
patent: 4859160 (1989-08-01), White, Jr.

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