A counterweight for use in a variable-pitch propeller system (includes a weighted element having walls forming a sealed chamber). The sealed chamber contains a weighting material, and an arm. The counterweight is configured to be coupled to a propeller blade 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. The sealed chamber may have been sealed during the additive manufacturing process, or after the additive manufacturing process has been completed.
Propeller counterweight
2021-03-23
Patent
Electronic Resource
English
IPC: | B64C AEROPLANES , Flugzeuge / B33Y ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING , Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern |
Propeller blade counterweight retainer ring and counterweight structure thereof
European Patent Office | 2021
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