HELICOPTER TRANSMISSION STRUCTURE - KAWASAKI HEAVY IND LTD

Title:

HELICOPTER TRANSMISSION STRUCTURE

Document Type and Number:

WIPO Patent Application WO/2021/132069

Kind Code:

A1

Abstract:

A helicopter transmission structure according to one embodiment of the present invention transmits drive power from the motor of the helicopter to a rotary wing, and comprises: a housing; an input shaft that transmits drive power of the motor to a gear positioned inside the housing; a bearing that rotatably supports the input shaft inside the housing, the bearing having an annular inner race that holds the input shaft, an annular outer race positioned radially outward of the inner race and fixed to the housing, and a plurality of rolling bodies sandwiched between the inner race and the outer race; and a sleeve that is pinched between the inner circumferential surface of the inner race and the input shaft, the thermal conductivity of the sleeve being lower than the inner race and the input shaft.

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Inventors:

OGASAWARA KENTA
HAYASAKA AKIRA
YAMAMOTO HIROKI
ARISAWA HIDENORI
SHINODA YUJI
TANAKA MITSUAKI
HASHIMOTO HIRONORI

Application Number:

PCT/JP2020/047399

Publication Date:

July 01, 2021

Filing Date:

December 18, 2020

Export Citation:

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Assignee:

KAWASAKI HEAVY IND LTD (JP)

International Classes:

B64C27/14; F16H57/04

Foreign References:

JP2007008461A	2007-01-18
JPH0348018A	1991-03-01
JP2008008408A	2008-01-17
JP2005226711A	2005-08-25
JP2007008461A	2007-01-18

Other References: