Cooling device for a rotatable anode
AssigneeMarresearch GmbH
InventorJules Hendrix
Life of this patent
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Abstract
The invention relates to a cooling device (100) for a rotatable anode (10) which is used for producing X-rays in an X-ray tube comprising a focal path (11), on which an electron stream is projected, and supporting elements (15). In order to efficiently cool the rotatable anode, a liquid (13) is located between the focal path (11) and the supporting elements (15), said supporting elements (15) simultaneously form condensation surfaces (16) and a vaporisation surface is formed on the focal path (11), the liquid is evaporated on the evaporation surface (19) and appears on the condensation surfaces (16) in the form of a vapour (18), wherein it is condensed for returning to the focal path (11) in the form of a condensate (22) by the action of centrifugal forces applied on the rotatable anode (10).
Claims15
A cooling device for a rotary anode for producing X-radiation in a X-ray tube, for which the rotatable anode has a focal path onto which an electron flow hits and bearing parts, characterized in that:
- a liquid is disposed between the focal path and the bearing parts, and the bearing parts simultaneously constitute condensation surfaces;
- and
- an evaporation surface is configured on the focal path, whereby the liquid evaporates on the evaporation surface and arrives as vapour to the condensation surfaces in order to condense there and to go back as condensate to the focal path due to the centrifugal forces of the rotatable anode.
A method for cooling a rotatable anode, characterized in that:
- liquid evaporates on a focal path of the rotatable anode and arrives as vapour to bearing parts simultaneously acting as condensation surfaces on which the vapour condenses, whereby the condensate is immediately fed back to the focal path by the centrifugal force of the rotatable anode.
The method according to clam 13, characterized in that sliding bearings are used as bearing parts.
Dependencies are inferred from the claim text.