Invention Grant
- Patent Title: Three-spring ram air turbine actuator
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Application No.: US15342212Application Date: 2016-11-03
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Publication No.: US10676201B2Publication Date: 2020-06-09
- Inventor: David Harrington , Paul M. Reinhard
- Applicant: David Harrington , Paul M. Reinhard
- Applicant Address: US NC Chrlotte
- Assignee: Hamilton Sundstrand Corporation
- Current Assignee: Hamilton Sundstrand Corporation
- Current Assignee Address: US NC Chrlotte
- Agency: Locke Lord LLP
- Agent Daniel J. Fiorello; Scott D. Wofsy
- Main IPC: F16F15/04
- IPC: F16F15/04 ; B64D27/26 ; B64D41/00 ; F16F3/02

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.
Public/Granted literature
- US20180119772A1 THREE-SPRING RAM AIR TURBINE ACTUATOR Public/Granted day:2018-05-03
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