VARIABLE PITCH PROPELLER - NAT RES & DEVELOPMENT AGENCY JAPAN AEROSPACE EXPLORATION AGENCY

Title:

VARIABLE PITCH PROPELLER

Document Type and Number:

Japanese Patent JP2021178529

Kind Code:

A

Abstract:

To provide a variable pitch propeller which is inexpensive, easy to be assembled and adjusted, and suitable for mass production.SOLUTION: A variable pitch propeller has a rotation shaft, a feathering shaft rotated by the rotation shaft, one blade being secured to the feathering shaft and having airfoil with a positive moment coefficient, a counter weight being secured at a position on the feathering shaft opposite to the blade with respect to the rotation shaft for equalizing moments of inertia of two inertia main shafts orthogonal to an axial direction of the feathering shaft, and two radial bearings being arranged with the rotation shaft located therebetween and supporting the feathering shaft rotatably around the feathering shaft.SELECTED DRAWING: Figure 1

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Inventors:

HARADA MASASHI

Application Number:

JP2020083546A

Publication Date:

November 18, 2021

Filing Date:

May 12, 2020

Export Citation:

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Assignee:

NAT RES & DEVELOPMENT AGENCY JAPAN AEROSPACE EXPLORATION AGENCY

International Classes:

B64C11/06; B64C27/37

Attorney, Agent or Firm:

Junichi Omori
Mitsuru Takahashi
Teppei Nakamura
Masayoshi Sekine
Ori Akira
Ayako Kaneko
Shintaro Kanayama
Chiba Ayako
Shiraka Tomohisa

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