Twin-shaft multi-lobed type hydraulic device

Details Twin-shaft multi-lobed type hydraulic device Twin-shaft multi-lobed type hydraulic device

1987-03-25

1988-08-02

Smith, Leonard E.

Rotary expansible chamber devices

Interengaging rotating members

Helical or herringbone

418206, F04C 1816

Patent

active

047611251

ABSTRACT:
A hydraulic device having a first shaft including a first rotor, and a second shaft including a second rotor, the first and second rotors being constructed by adjacently fitting the same shape rotor elements, respectively. The rotor elements have teeth on the outer periphery thereof at a constant interval, and each tooth has a tip portion fluid-tightly engaged with an inner wall of a housing of the device. The rotor elements are adjacently fitted to the shaft in such a manner that the rotor elements are displaced in the same rotational direction along the axial direction of the shaft. The teeth tip portions of the rotor elements adjacent to each other are overlapped so that spiral paths are defined on the outer surface of the rotor.

REFERENCES:
patent: 572946 (1896-12-01), Backstrom
patent: 612304 (1898-10-01), Blazer
patent: 1247552 (1917-11-01), Lindenberg
patent: 2504230 (1950-04-01), Smith
patent: 2670188 (1954-02-01), Erdmenger
patent: 3734653 (1973-05-01), Edstrom
patent: 3869227 (1975-03-01), Kocher
patent: 4224015 (1980-09-01), Nagata
patent: 4515513 (1985-05-01), Hayase
patent: 4543048 (1985-09-01), Densch

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