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.

Date of Patent:
Dec. 09, 1980

Filed:

Jun. 26, 1978
Applicant:
Inventors:

Brian A Robideau, Glastonbury, CT (US);

Juri Niiler, Glastonbury, CT (US);

Assignee:

United Technologies Corporation, Hartford, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F10D / ;
U.S. Cl.
CPC ...
4151 / ; 415217 ;
Abstract

An airfoil tip seal structure for an axial flow rotary machine is disclosed. Various concepts relating to seal designs and their influence on tip sealing effectiveness are discussed. In accordance with the teaching contained herein, one seal geometry includes a circumferentially extending groove in the stator which circumscribes the tips of the blades of a corresponding rotor stage. Another seal geometry applicable to machines having cantilevered stator vanes includes a circumferentially extending groove in the rotor which circumscribes the tips of the vanes of a corresponding stator stage. The tips of the blades and the tips of the cantilevered stator vanes run over the corresponding groove in line on line relationship with the adjacent flow path wall at the design operating condition of the machine in which the seal structure is incorporated.


Find Patent Forward Citations

Robideau, Brian. (1980). Blade tip seal for an axial flow rotary machine (U.S. Patent No. 4238170). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4238170

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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