Vane-type hydraulic motor

Details Vane-type hydraulic motor Vane-type hydraulic motor

2007-09-25

2007-09-25

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

With plural working fluid inlet or outlet passages

C418S259000, C418S260000

Reexamination Certificate

active

10525009

ABSTRACT:
A vane-type hydraulic motor includes a rotor (30) having a main shaft (70) and a plurality of vanes (35), a cam casing (10) having a chamber (11) for rotatably housing the rotor (30), a first port (13) and a second port (15) for supplying a working fluid into the chamber (11) and discharging the working fluid from the chamber (11). A bypass path (80) is provided for allowing the working fluid to flow from bearing portions (51, 61) supporting the main shaft (70). A drain port (17) is provided for discharging the working fluid to the exterior.

REFERENCES:
patent: 2463155 (1949-03-01), Dawes
patent: 4963080 (1990-10-01), Hansen
patent: 7056107 (2006-06-01), Shinoda et al.
patent: 1113175 (2001-07-01), None
patent: 49-78902 (1974-07-01), None
patent: 52-6953 (1975-01-01), None
patent: 05164061 (1993-06-01), None

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