Patent · US Active

Passive cyclic pitch control

US8529205B2 · kind B2 · utility

6Cited by

14References

17Claims

0Family size

Assignee

Hamilton Sundstrand Corporation (HSC) · US

Inventor

Robert H. Perkinson · Stonington, US

Key dates

Filing date	Dec 10, 2009
Grant date	Sep 10, 2013
Priority date	—
Expiry date	Jul 10, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB64C11/38
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A blade pitch control mechanism for a propeller assembly (10) includes an actuation shaft (24) having a spherical member (28) located at a propeller axis (22). A yoke (40) is located around the spherical member (28) and is rotatable thereon about a yoke tilt axis (62) substantially perpendicular to the propeller axis (22). The yoke (40) includes a plurality of propeller blade attachments (44), each receptive of a propeller blade (14). The plurality of blade attachments (44) are configured such that rotation of the yoke (40) about the yoke tilt axis (62) results in rotation of each propeller blade (14) about a blade pitch change axis (48).

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