Fuel supplying conduit and injector`s threaded connection rotation immobilizing device for e.g. airplane jet engine, has ring with serration cooperating with nut`s serration to immobilize ring and nut, and deformable unit placed on ring

摘要

#CMT# #/CMT# The device has a nut (10) mounted at an end of a fuel supplying conduit (12) and screwed on an end fitting (18) of an injector (14). A cylindrical ring (24) has an inner serration (28) cooperating with an outer serration (30) of the nut to immobilize the rotation of the ring and the nut relative to each other. A finger (32) of the ring cooperates with the injector to immobilize the rotation of the ring on the injector. An elastically deformable unit (26) i.e. metallic wire, is mounted on the ring and cooperates with the nut by elastic lock mechanism to axially immobilize the ring on the nut. #CMT#USE : #/CMT# Used for immobilizing the rotation of a threaded connection utilized for connecting a fuel supplying conduit of a turbomachine e.g. jet engine or turbopropeller, of an airplane (claimed) and an injector of a combustion chamber of the turbomachine on an engine of the airplane. #CMT#ADVANTAGE : #/CMT# The utilization of only two components i.e. ring and the elastically deformable unit permits to reduce the weight and cost of the device. The device can be easily implemented and ensures efficient immobilization of the rotation of the threaded connection even after several mounting and dismounting operations of the threaded connection. The device can be mounted and dismounted in easy manner. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a perspective schematic view of a threaded connection rotation immobilizing device illustrating the initial step of mounting of the device. 10 : Nut 12 : Fuel supplying unit 14 : Injector 18 : End fitting 24 : Cylindrical ring 26 : Elastically deformable unit 28 : Inner serration 30 : Outer serration 32 : Finger.