COMPRESSOR IMPELLER FIXING NUT, IMPELLER ASSEMBLY, AND SUPERCHARGER

Title:

COMPRESSOR IMPELLER FIXING NUT, IMPELLER ASSEMBLY, AND SUPERCHARGER

Document Type and Number:

WIPO Patent Application WO/2017/145582

Kind Code:

A1

Abstract:

A compressor impeller fixing nut has a tubular shape and is provided with: a curved surface-shaped portion which is disposed in a first range from one end side in an axial direction, and the outer diameter of which becomes greater toward the other end side in the axial direction, the curved surface-shaped portion including a curved surface-shaped outer peripheral surface that is convex in a radially outward direction in a cross section along the axial direction; and a nut portion which is disposed in a second range closer to the other end side than the first range in the axial direction, and which includes a nut-shaped outer peripheral surface. When the first range has a length L in the axial direction, and the curved surface-shaped portion in the first range has an outer diameter maximum value D1max and minimum value D1min, (D1max - D1min)/2 < L is satisfied.

Inventors:

TANABE YOSHIHIRO (JP)
WADA YASUHIRO (JP)

Application Number:

PCT/JP2017/001487

Publication Date:

August 31, 2017

Filing Date:

January 18, 2017

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND LTD (JP)

International Classes:

F02B37/00; F02B39/00; F04D29/053; F04D29/28; F16B37/00

Foreign References:

JP2015094355A	2015-05-18
JPS6282302U	1987-05-26
JPS6282303U	1987-05-26
JPS61155696U	1986-09-26
US6164931A	2000-12-26
US20030108428A1	2003-06-12
US4053261A	1977-10-11

Other References: