公开(公告)号：US20230139607A1

公开(公告)日：2023-05-04

申请号：US17452883

申请日：2021-10-29

申请人： PRATT & WHITNEY CANADA CORP.

发明人： David PYRA ,  Guy LEFEBVRE ,  Gerard THERIAULT

IPC分类号： F16B39/10 ,  F02C7/20

摘要： A locking tab washer for rotatably locking a bolt fastened to a component in an aircraft engine has a body with an opening and at least four locking tabs positioned about the opening and circumferentially spaced apart from one another at integer multiples of a common angle relative to the center of the opening. The locking tabs are bendable towards to rotatably lock the bolt. The locking tab washer also has a retaining feature positioned about the opening and operable to rotatably retain the locking tab washer to the component.

公开(公告)号：US20210310588A1

公开(公告)日：2021-10-07

申请号：US17077936

申请日：2020-10-22

申请人： PRATT & WHITNEY CANADA CORP.

发明人： Gerard THERIAULT ,  Hubert MARCOTTE ,  Gilles FOURNIER

IPC分类号： F16L19/00

摘要： A coupling nut for sealingly engaging a ferrule of a fluid line to a component of a hydraulic system, has: a shank extending along a central axis and having threads to engage a nipple, the threads extending circumferentially around the central axis, the shank defining an inner passage extending along the central axis and sized to receive the fluid line; and a head extending from the shank circumferentially around the inner passage relative to the central axis, the head: defining faces circumferentially distributed about the central axis and edges at junctions between the faces, the faces including torque-transmitting faces each facing a direction having a circumferential component relative to the central axis, and having a cross-section in a plane normal to the central axis, the cross-section defining a plurality of symmetry planes containing the central axis, the torque-transmitting faces free of intersection with the plurality of symmetry planes.