Universally-movable machine part and fluid transfer apparatus ut

Details Universally-movable machine part and fluid transfer apparatus ut Universally-movable machine part and fluid transfer apparatus ut

1985-04-30

1987-03-10

Croyle, Carlton R.

Rotary expansible chamber devices

Nutating working member

418 52, 418193, F01C 063

Patent

active

046488138

ABSTRACT:
A universally-movable machine part includes a disc member having a disc shaft and a recessed slot defining a bearing surface conforming to a smooth cylindrically-curved plane. At least one planar vane member defines a lower bearing surface conforming to the smooth cylindrically-curved plane of the disc slot so as to be pivotally slidably mated therewith. A rotor member having a rotor shaft defines a groove which establishes a plane passing through a geometric center point of the device and in which an upper portion of the vane member is accepted so as to be pivotal within the established plane. The rotor member also defines a lower surface upwardly and outwardly divergent relative to the geometric center point of the device to permit the rotor member to be pivotally movable about an axis mutually perpendicular with the axis defined by the disc shaft and the axis about which the vane member pivots so that the rotor member will also be pivotally movable together with the vane member. A ball bearing having a diameter larger than the cross-sectional width of the vane member is also provided so as to establish a spherical bearing surface. Accordingly, the rotor shaft is universally movable relative to the disc shaft. A fluid transfer apparatus such as, for example, a fluid pump, utilizing the universally-movable machine part is also disclosed.

REFERENCES:
patent: 2101428 (1937-12-01), Cuny
patent: 2292631 (1942-08-01), Granberg
patent: 3176908 (1965-04-01), Bowdish

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