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公开(公告)号：US10519798B2
公开(公告)日：2019-12-31
申请号：US15699295
申请日：2017-09-08
Applicant: ROLLS-ROYCE plc
Inventor： Michael G. Kennedy
Abstract: A gas turbine engine comprises a plurality of variable guide vanes, a unison ring, and a lever arrangement connecting the unison ring to the variable guide vanes. The lever arrangement comprises a lever pin received by the unison ring, and a bush provided between the lever pin and the unison ring. The bush comprises a sprung region biased outwardly away from the lever pin towards the unison ring.
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