Patent ID: 6932351
Filing Date: 2005-08-23
Classification: F04B,F16J,Y10S

Abstract:
1. A packing case defining an opening through which a movable machinery shaft may be inserted such that the packing case is mounted on the shaft, the packing case comprising: a plurality of packing cups with each cup having channels through which a fluid coolant may flow, the channels forming substantially parallel passageways extending through all of the plurality of cups along the length of the shaft with the passageways being spaced apart around the shaft circumference and series connected; and a flange with at least one inlet port connected to a first channel of the flange and at least one outlet port connected to a second channel of the flange, the first and second channels of the flange each intersecting a channel of one of the plurality of packing cups such that the fluid coolant may be introduced through the at least one inlet port, circulate through the substantially parallel passageways of the plurality of packing cups, and exit the packing case through the at least one outlet port.