Coupling for feeding a heat-exchange medium to a rotating body
AssigneeCHRISTIAN MAIER GmbH & CO.MASCHINENFABRIK
InventorPeter Szam
Life of this patent
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Abstract
A coupling for supplying a heat-exchange liquid to a load has a shaft extending from the load and centered on the axis. A nonrotating housing surrounding the shaft at the tube end has a connection so that the heat-exchange liquid can be pumped into the load. A roller bearing is engaged between the housing and the shaft axially between the opening and the load. Respective seal rings rotationally fixed on and sealed to the housing and the shaft between the bearing and the opening bear axially on one another. A cooling sleeve on the housing surrounds and extends axially past the seal rings. An insulator has a part closely radially surrounding the shaft between the seal rings and the opening and forming therewith a small gap through which the heat-exchange liquid can flow.
Claims11
A coupling for supplying a heat-exchange fluid to a load rotatable about an axis, the coupling comprising:
- a shaft fixed to and extending from the load, having an end opening, and centered on the axis;
- a nonrotating housing surrounding the shaft at the end opening;
- means connected to the housing for pumping the heat-exchange fluid through the housing, opening, and shaft into the load;
- a roller bearing engaged between the housing and the shaft axially between the opening and the load, whereby the shaft can rotate freely in the housing about the axis;
- respective seal rings rotationally fixed on and sealed to the housing and the shaft between the bearing and the opening and bearing axially on one another, the seal rings sliding on one another on rotation of the load;
- a cooling sleeve on the housing surrounding and extending axially past the seal rings;
- means for cooling the cooling sleeve;
- and
- an insulator having a part closely radially surrounding the shaft between the seal rings and the opening and forming therewith a small gap through which the heat-exchange fluid can flow, whereby the seal rings are exposed to the fluid flowing through the gap and substantially prevent it from getting to the seals.
Dependencies are inferred from the claim text.