Patent · US Active

Device for fastening a variable pitch blade

US8651821B2 · kind B2 · utility

1Cited by

5References

8Claims

0Family size

Assignee

SNECMA · FR

Inventors

Daniel Dao · Savigny-le-Temple, FR
Adrien Jacques Philippe Fabre · Moissy-Cramayel, FR
Alain Paul Madec · Moissy-Cramayel, FR

Key dates

Filing date	Jul 16, 2009
Grant date	Feb 18, 2014
Priority date	—
Expiry date	Mar 8, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB64C11/06
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

This blade attachment device comprises a shell (28) installed around an outer collar (23) of the pivot (15) of the blade (27) and capable of rotating by an angle sufficient for cleats (30, 31) to close the ends of the pivot groove and retain the root of the blade (27) in it, and mobile shims that cooperate to retain the root in the groove.Application to aircraft engines.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.