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:
Jul. 11, 2000
Filed:
Nov. 04, 1998
Brian D Mallen, Charlottesville, VA (US);
Mallen Research Corporation, Charlottesville, VA (US);
Abstract
A rotor and stator cooling system for a rotary vane pumping machine having two end plates, a stator assembly, and a rotor. A rotor cooling gas supplied at a cooling gas supply channel in an end plate passes from a radial inner location, along a rotor face chamber of the rotor in an outward radial direction, and then toward a plurality of rotor gas channels in the rotor. The rotor cooling gas absorbs heat from the rotor and then exits through a heated gas exit channel in another endplate. A stator cooling fluid entering at a cooling fluid port in one end plate passes through stator fluid channels of the stator assembly, absorbs heat therein, and exits at another fluid port in the other endplate.