Hydraulic motor

Details Hydraulic motor Hydraulic motor

2006-05-09

2006-05-09

Lazo, Thomas E. (Department: 3745)

Expansible chamber devices

Displacement control of plural cylinders arranged in...

Parallel cylinders

C092S018000

Reexamination Certificate

active

07040216

ABSTRACT:
A hydraulic motor is equipped with an output shaft (2), a cylinder (4) arranged around the output shaft and receiving a plurality of pistons (6) expanding with the fluid pressure, a diagonal plate (7) that contacts the plurality of the expanding pistons (6), thereby to exert rotational force to the cylinder (4), a brake disc (21) disposed outside the cylinder (4) to rotate together therewith, a motor casing (11, 12) receiving the cylinder (4) and the brake disc (21), a brake driving device (25) that presses an outer periphery of the brake disc (21) on an inner peripheral surface of the motor casing (11, 12) to brake the brake disc. A first chamber (14) and a second chamber (15) are defined in the motor casing (11, 12) by the brake disc (21) and a communicating passage (30) formed bypassing the brake disc (21) communicates the first chamber814) with the second chamber (15). Since the pressure difference between the first chamber (14) and the second chamber (15) is prevented due to the communicating passage (30), the friction resistance does not occur at the brake disc (21) when the braking is released.

REFERENCES:
patent: 3439766 (1969-04-01), Frost et al.
patent: 3808949 (1974-05-01), Muncke et al.
patent: 4565117 (1986-01-01), Forster
patent: 5497622 (1996-03-01), Nam
patent: 6119580 (2000-09-01), Sato et al.
patent: 6336323 (2002-01-01), Tanabe et al.
patent: 6663354 (2003-12-01), Forster
patent: 1067305 (2000-07-01), None
patent: 08-061212 (1996-03-01), None

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