Motors: expansible chamber type – Three or more cylinders arranged in parallel radial or... – Radially disposed cylinders
Patent
1976-05-24
1979-01-30
Freeh, William L.
Motors: expansible chamber type
Three or more cylinders arranged in parallel radial or...
Radially disposed cylinders
F01B 1306
Patent
active
041366026
ABSTRACT:
A hydraulic motor defined by a relatively compact structural design and capable of delivering high torque at low speeds. A drive shaft is mounted within a casing and disposed in surrounded relation to a cylinder housing which includes a predetermined number of equally spaced cylinders extending radially outwardly from the longitudinal axis of the shaft but being attached thereto. A piston is mounted for free floating movement within each of the cylinders and includes a cam rider attached thereto for disposable driving engagement with a cam surface. The cam surface is formed from a plurality of angularly oriented surface portions on a plurality of cam rings which are removably attached to the casing for replacement or substitution. An annular valve ring is disposed in surrounding relation to the shaft and in surrounded disposition relative to both the cylinder housing and a portion of the casing. Configuration and dimensioning of the valve ring is such as to floatingly engage the casing while allowing relative movement between the valve ring and the affixed cylinder housing and shaft. Fluid flow channels define the path of hydraulic fluid from an exterior source and exhaust facilities into the various cylinders by being formed either on the casing or the shaft so that either the casing or the shaft may serve as the rotating or fixed element thereby adding to the versatility of application of the motor.
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Barry Ronald E.
Freeh William L.
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