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:
Sep. 19, 1978
Filed:
Apr. 25, 1977
Gerhard Kritzler, Freudenberg, DE;
Paul Eckert, Wenden, DE;
Abstract
A stationary-mass rotary regenerative air preheater uses a single regenerative mass for the separately controllable heating of different streams of air. This is achieved by providing at each axial end face of the mass rotating cowls divided into rotationally symmetrical hoods each of which is sub-divided into sector-shaped compartments which have the same radial extent as the mass. A given compartment of one hood on one end face is angularly of the same extent as the corresponding compartment of the other hood on that end face. The compartments are brought to coaxial connecting ducts at the neck of each cowl. Separation of media flows even under temperature or pressure differences is assured by sealing strips at each of the radially extending walls of each hood; these are automatically operated, and those on internal (sub-dividing) walls may be operatively linked to those on external walls.