Expansible chamber devices – Displacement control of plural cylinders arranged in... – Parallel cylinders
Patent
1994-03-21
1995-01-24
Denion, Thomas E.
Expansible chamber devices
Displacement control of plural cylinders arranged in...
Parallel cylinders
92 57, 91505, 91499, 74 60, F01B 300, F16H 2300
Patent
active
053833910
ABSTRACT:
Arcuate bearings are useful, for example, in pivotally supporting a cradle swashplate of axial piston variable displacement hydraulic devices. The bearings of known hydraulic devices have either been a pair of laterally spaced roller bearings assembly or a pair of laterally spaced sleeve bearings. The subject hydraulic device includes a roller bearing assembly positioned between the swashplate and the housing at the side of the swashplate subjected to high loads and a less expensive sleeve bearing positioned between the swashplate and the housing at the other side of the swashplate subjected to low loads. By using this combination of bearings, the overall cost of the hydraulic device is reduced without impairing the operation of the hydraulic device.
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patent: 5017095 (1991-05-01), Burgess et al.
patent: 5024143 (1991-06-01), Schniederjan
Goade James C.
Werner Claude H.
Caterpillar Inc.
Denion Thomas E.
Grant John W.
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