The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 28, 2003
Filed:
Oct. 18, 2000
Applicant:
Inventors:
Qing Kelvin Lu, Aurora, IL (US);
Gerald J. Carlson, Aurora, IL (US);
Assignee:
Koninklijke Philips Electronics, N.V., Eindhoven, NL;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 3/510 ;
U.S. Cl.
CPC ...
H01J 3/510 ;
Abstract
A cooling oil circuit (D) circulates cooling oil over an x-ray tube absorbing its waste heat. A refrigeration circuit (E) then cools the cooling oil. A heat buffer ( ) absorbing peak heat loads from the cooling fluid when the x-ray tube is generating x-rays. Valves ( ) regulate a relative amount of cooling oil entering the heat buffer to increase heat transfer efficiency. The heat buffer enables the system to handle peak heat loads with a smaller, more condensed refrigeration system, by absorbing heat during operation of the x-ray tube and releasing heat between operations.