Rotary fluid machinery

Details Rotary fluid machinery Rotary fluid machinery

2005-09-20

2005-09-20

Nguyen, Hoang (Department: 3748)

Power plants

Motive fluid energized by externally applied heat

Power system involving change of state

C060S671000

Reexamination Certificate

active

06945050

ABSTRACT:
A rotary fluid machine is provided that includes a rotor chamber (14), a rotor (41), vanes (48) guided by vane channels formed in the rotor (41), and pistons (47) slidably fitted in cylinders (44) provided in the rotor (41). Rollers (71), which have a greaseless bearing structure and are provided on support shafts (48d) of the vane (48), are rollably engaged with annular channels (74) of a casing (11) so as to interconvert reciprocation of the pistons (47) and rotational movement of the rotor (41). By guiding water for a hydrostatic bearing that supports the vane (48) in the vane channel in a floating state from a recess (48e) of the vane (48) to a hydrostatic bearing (71) of the roller (71) via water passages (W19to W22), an outer member (71b) of the roller (71) is supported in a floating manner relative to an inner member (71a).

REFERENCES:
patent: 4037415 (1977-07-01), Christopher et al.
patent: 5336059 (1994-08-01), Rowley
patent: 5758501 (1998-06-01), Jirnov et al.
patent: 1 113 175 (2000-07-01), None
patent: 2000-320543 (2000-11-01), None
patent: WO 00/53926 (2000-03-01), None

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