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Light weight deposite suspension mechanism

A technology of turbines and stoppers, applied in mechanical equipment, aircraft parts, engine components, etc., can solve the problems of electronic sensors increasing program burden, time-consuming calibration and maintenance, etc.

Active Publication Date: 2014-07-09
HAMILTON SUNDSTRAND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Use of electronic sensors increases procedural burden and requires time-consuming calibration and maintenance

Method used

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  • Light weight deposite suspension mechanism
  • Light weight deposite suspension mechanism
  • Light weight deposite suspension mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] see figure 1 and figure 2 , an exemplary aircraft structure 10 is shown schematically and includes a door 12 through which a ram air turbine assembly (RAT) 14 passes from a stowed position 16 ( figure 2 shown in ) deployment. The RAT 14 includes a turbine 26 having turbine blades 28 that rotate in response to air flowing along the exterior of the aircraft. Actuator 30 moves RAT 14 from stowed position 16 to deployed position 18 . The orientation of turbine blades 28 is maintained in a desired position to prevent contact with aircraft structure 10 during deployment. Release pin 34 engages turbine drive shaft 70 ( Figure 7 shown in ) to maintain the desired position of the turbine blades 28 until exiting the aircraft structure 10 . Once the RAT 14 is moved toward the deployed position 18 , the release pin 34 is pulled from the turbine drive shaft 70 to allow rotation of the turbine blades 28 .

[0018] Rotation of turbine blades 28 drives generator 22 housed in b...

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PUM

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Abstract

The present invention relates to a lightweight stow abort mechanism and, in particular, a ram air turbine (RAT) including a movable turbine support structure that prevents the turbine support structure from moving when the turbine blades are not locked in a desired position. Save location. The stow abort mechanism includes a pawl actuated by a cam on the release lever. The release lever is movable in response to the position of a release pin that prevents rotation of the turbine drive shaft from a desired orientation that locks the turbine blades in the desired position required for stowage. Disengagement of the release pin causes the stow abort mechanism to maintain a position wherein the pawl resists movement to the deployed position. Engagement of the release pin prevents rotation, which causes the pawl to move to a position that provides movement to the stowed position.

Description

technical field [0001] The present disclosure generally relates to deployment mechanisms for ram air turbines. More specifically, the present disclosure relates to a deployment mechanism that includes features that prevent stowing of the ram air turbine when the turbine is not in a desired orientation. Background technique [0002] A ram air turbine is used to generate supplemental power in an aircraft during flight by extracting power from the air flow near the outside of the aircraft. The ram air turbine consists of a turbine that drives an electric motor or hydraulic pump suspended from the frame assembly. In operation, the turbine is moved outward from the aircraft to a position that provides clearance between the turbine blades and the aircraft. A release mechanism prevents the blades from rotating until the turbine is sufficiently clear of the aircraft. Storing the ram air turbine after use requires the blades to be locked again in a position that does not allow acc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64D27/10
CPCY02T50/671F01D25/28B64D41/007F05D2220/34Y02T50/60B64D41/00Y10T74/20207
Inventor D.E.拉斯
Owner HAMILTON SUNDSTRAND CORP