JPS63141801U

JPS63141801U -

Info

Publication number: JPS63141801U
Application number: JP1987033153U
Authority: JP
Priority date: 1987-03-09
Filing date: 1987-03-09
Publication date: 1988-09-19

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の第１実施例に係るガスタービ
ンエンジンのインペラ用スピナ部の縦断面図、第
２図は本考案の第２実施例に係るガスタービンエ
ンジンのインペラ用スピナ部の縦断面図、第３図
は本考案の第３実施例に係るガスタービンエンジ
ンのインペラ用スピナ部の縦断面図、第４図は従
来のガスタービンエンジンのインペラ用スピナ部
の縦断面図、第５図は先に本出願人が提案したス
ピナの縦断面図（実願昭６０―１７４２９７号）
、第６図は従来の構造におけるインペラのバラン
ス修正部を示す縦断面図、である。２１，５０，６３……インペラ、２３，４２，
６５……軸、２４，４２，６１……スピナ、２５
，２６，４５……ねじ部、２７，２８，４３，４
４，４７，４８，６２，６４……嵌合部、２９，
４９……外周部、３０，５１……バランス修正部
、４６……軸延設部。 FIG. 1 is a longitudinal cross-sectional view of an impeller spinner portion of a gas turbine engine according to a first embodiment of the present invention, and FIG. 2 is a longitudinal cross-sectional view of an impeller spinner portion of a gas turbine engine according to a second embodiment of the present invention. 3 is a vertical cross-sectional view of an impeller spinner part of a gas turbine engine according to a third embodiment of the present invention, FIG. 4 is a vertical cross-sectional view of an impeller spinner part of a conventional gas turbine engine, and FIG. is a vertical cross-sectional view of the spinner previously proposed by the applicant (Utility Application No. 174297-1983)
, FIG. 6 is a longitudinal cross-sectional view showing a balance correction section of an impeller in a conventional structure. 21, 50, 63... impeller, 23, 42,
65...Axis, 24, 42, 61...Spinner, 25
, 26, 45...Threaded portion, 27, 28, 43, 4
4, 47, 48, 62, 64...fitting portion, 29,
49...Outer peripheral part, 30, 51...Balance correction part, 46...Axis extension part.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

ガスタービンエンジンのインペラの軸端部に螺
合され該軸に嵌合された前記インペラを固定する
スピナに、前記軸と螺合するためのねじ部ととも
に、前記軸又はインペラのいずれか一方に嵌合さ
れる嵌合部を設け、かつ前記スピナの外周部を、
前記インペラ方向に、インペラの空気入口側に設
けられたバランス修正部を覆う位置まで延設した
ことを特徴とするガスタービンエンジンのインペ
ラ用スピナ。 A spinner that is screwed to the shaft end of an impeller of a gas turbine engine and fixes the impeller fitted to the shaft, and is fitted to either the shaft or the impeller together with a threaded portion for screwing to the shaft. a fitting part to be fitted, and an outer peripheral part of the spinner,
A spinner for an impeller of a gas turbine engine, characterized in that the spinner extends in the direction of the impeller to a position that covers a balance correction section provided on an air inlet side of the impeller.