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:
Apr. 25, 1989
Filed:
Feb. 08, 1988
Applicant:
Inventor:
Phiroze Bandukwalla, Olean, NY (US);
Assignee:
Dresser-Rand Company, Corning, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D / ;
U.S. Cl.
CPC ...
415211 ;
Abstract
An improved diffuser has a first row of low solidity vanes followed by a second row of low solidity vanes. The chord of the second row of vanes is greater than the chord of the first row. The second row is located radially outward from the trailing edges of the first row and circumferentially displaced to lie in the shadow of the first vane.