Patent · US Active

Three-spring ram air turbine actuator

US10676201B2 · kind B2 · utility

0Cited by

5References

13Claims

0Family size

Assignee

Hamilton Sundstrand Corporation (HSC) · US

Inventors

David Harrington · Nashua, US
Paul M. Reinhard · Marengo, US

Key dates

Filing date	Nov 3, 2016
Grant date	Jun 9, 2020
Priority date	—
Expiry date	Jun 22, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16F3/02
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A ram air turbine (RAT) actuator can include an actuator housing, an actuator rod configured to move relative to the actuator housing through several positions, and a first biasing member, a second biasing member, and a third biasing member positioned and configured to bias the actuator rod relative to the actuator housing. The first biasing member biases the actuator rod from a first position through a second position, the second biasing member biases the actuator rod from the first position through a third position, and the third biasing member biases the actuator rod from the first position through a fourth position. The three biasing members can be configured to bias a ram air turbine against an uplock hook with sufficient force to eliminate vibrational damage to the uplock hook while in the first position.

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