Rotary-anode X-ray tube comprising a sleeve bearing

Details Rotary-anode X-ray tube comprising a sleeve bearing Rotary-anode X-ray tube comprising a sleeve bearing

1994-11-17

1996-04-02

Porta, David P.

X-ray or gamma ray systems or devices

Source

Electron tube

378132, H01J 3526

Patent

active

055047971

ABSTRACT:
A rotary-anode X-ray tube includes a sleeve bearing, notably a helical groove bearing, for journalling the rotary anode. The bearing comprises a stationary and a rotatable bearing portion, a liquid lubricant being present between the two bearing portions and at least one of the bearing, portions being provided with at least one capillary-type lubricant duct. The lubricant duct can be particularly simply formed by imparting to the duct a cross-sectional area which is greater than permissible so as to achieve a capillary effect and by arranging in the lubricant duct a member which can be wetted by the lubricant and which extends over at least a part of the length of the lubricant duct, thus reducing the cross-sectional area of the lubricant duct to such an extent that a capillary effect is achieved.

REFERENCES:
patent: 4342375 (1982-08-01), Lyden
patent: 4396529 (1983-08-01), Price et al.
patent: 5068885 (1991-11-01), Vetter
patent: 5077775 (1991-12-01), Vetter
patent: 5210781 (1993-05-01), Ono et al.

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