Hydraulic fluid feeder

Details Hydraulic fluid feeder Hydraulic fluid feeder

2007-02-13

2007-02-13

Kim, Chong H. (Department: 3682)

Lubrication

Systems

Gearing

C192S083000, C192S083000, C180S053400, C180S292000

Reexamination Certificate

active

10265610

ABSTRACT:
Supplying fluids different in pressure from one end of a revolving shaft without providing a diagonal hole in the revolving shaft for supply holes for feeding hydraulic fluid and lubricating oil. The time for manufacturing and the cost of providing a hydraulic fluid feeder to the revolving shaft is reduced. A hydraulic fluid feeder includes a central hole provided on the centerline of the revolving shaft. Hollow tubes having a smaller outside diameter than the inside diameter of the central hole are concentrically inserted into the central hole and the central hole is partitioned. Either of the passages formed by partitioning functions as a hydraulic fluid supply passage for the hydraulic equipment and the other functions as a hydraulic fluid supply passage for another piece of hydraulic equipment or a lubricating oil supply passage for a bearing provided on the revolving shaft.

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