A counterweight (100) for use in a variable-pitch propeller system (300), comprises: a weighted element (110) having walls forming a sealed chamber (112), the sealed chamber containing a weighting material, and an arm (120); wherein the counterweight is configured to be coupled to a propeller blade (210); and wherein the walls of the weighted element and the arm comprise a single piece, and are an additively manufactured single piece. The weighting material may comprise a powder element (114). The sealed chamber (112) may have been sealed during the additive manufacturing process, or after the additive manufacturing process has been completed. A method of manufacturing a counterweight (100) is also disclosed.
PROPELLER COUNTERWEIGHT
PROPELLERGEGENGEWICHT
CONTREPOIDS D'ÉQUILIBRAGE D'HÉLICE
2019-07-03
Patent
Electronic Resource
English
IPC: | B64C AEROPLANES , Flugzeuge |
Propeller blade counterweight retainer ring and counterweight structure thereof
European Patent Office | 2021
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