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:
Mar. 06, 1979
Filed:
Oct. 26, 1977
Applicant:
Inventor:
Paul Koeller, Dorval, CA;
Assignee:
Dominion Engineering Works Limited, Lachine, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D / ;
U.S. Cl.
CPC ...
415116 ; 60696 ; 415119 ;
Abstract
An arrangement for introducing air into the draft tube of turbo-hydraulic machines, in order to promote smooth running at part-load and to facilitate the achievement of full load, relies upon the use of a protective plate in covering relation with the air admission opening and cooperating with the structure located within the draft tube to act as an air eductor, in the manner of a venturi.