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:
Nov. 27, 1990
Filed:
May. 15, 1989
Applicant:
Inventor:
Philip C Franklin, Huddersfield, GB;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D / ; F04D / ; F04D / ;
U.S. Cl.
CPC ...
415157 ; 415151 ; 415148 ;
Abstract
A variable geometry turbine in which an inlet passageway has a movable wall the position of which is adjusted to match the turbine characteristics to the flow rate through the turbine. Nozzle vanes extend through the movable wall and are mounted on a nozzle support which is normally stationary so that the nozzles contact the facing wall of the inlet passageway. The nozzle support is arranged to move with the movable wall however when the movable wall opens the inlet passageway beyond a predetermined extent so that the nozzle vanes are at least partially retracted when the movable wall is in the fully open position.