Start-up motor assembly for rotational machines

Details Start-up motor assembly for rotational machines Start-up motor assembly for rotational machines

F - Mech Eng,Light,Heat,Weapons

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B

74/3

F01B 27/00 (2006.01) F01D 25/34 (2006.01)

Patent

CA 1108884

ABSTRACT OF THE DISCLOSURE The invention concerns a rotation apparatus for use with a rotating machine having a drive shaft. The rotation apparatus comprises an auxiliary shaft positioned in spaced relation relative to the drive shaft. Radial and axial bearings rotatably support the auxiliary shaft. Step-down gearing interconnects the auxiliary shaft and the drive shaft so that rotation of the former drives the latter. A rotational start-up mechanism com- prising a hydrostatic motor and overriding clutch is drivingly connected to the auxiliary shaft to dirve the latter. The hydrostatic motor and overriding clutch are mounted within a bearing housing of the turbine. The turbine drives a pump for supplying lubricating oil to the turbine bearings. A conduit also connects the pump with the hydrostatic motor so that the motor is continuously rotated once the turbine has been started.

306029

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