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US 4,644,577 AGranted
X-ray tube comprising an anode disc rotatably journalled on a helical-groove bearing
AssigneeU.S. Philips Corporation
InventorsJan Gerkema, Johannes L. M. Hagen, Johan A. Rietdijk
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Abstract
An X-ray tube comprising a rotary anode which is journalled in a helical-groove bearing is constructed so that the axial median plane of the rotary anode system is approximately coincident with the axial center of the helical-groove bearing. The bearing block for the anode system is connected to the tube base preferably via a connection whose rigidity is adapted to the weight, the geometry and the weight distribution of the anode system. The connection allows for cooling of the bearing block by means of a cooling liquid.
Claims9
In an X-ray tube comprising
- (a) a rotary anode system comprising
- an anode disc,
- a rotary shaft, the anode disc being mounted on the shaft,
- a bearing sleeve arranged about the rotary shaft, and
- a rotor connected to the bearing sleeve;
- and
- (b) a metal-lubricated helical-groove bearing;
- the improvement wherein the rotary anode system is journalled at one side only by means of the helical-groove bearing so that the axial weight distribution on the axial median plane of the rotary anode system coincides substantially with the axial center of the helical-groove bearing.
5 more elements
Dependencies are inferred from the claim text.