SUPERCHARGER
To suppress the occurrence of creep even under high temperature circumstances.SOLUTION: A supercharger 1 includes a motor casing 9, a fitted ring R fitted into the motor casing 9 at its bearing storage part 33 through which a rotary shaft 5 is inserted, and a bearing 23 arranged on the fitted ring R...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To suppress the occurrence of creep even under high temperature circumstances.SOLUTION: A supercharger 1 includes a motor casing 9, a fitted ring R fitted into the motor casing 9 at its bearing storage part 33 through which a rotary shaft 5 is inserted, and a bearing 23 arranged on the fitted ring R for rotatably supporting the rotary shaft 5. On an outer peripheral face Rb of the fitted ring R, a protruded part 31 is provided. In an inner peripheral face 33a of the bearing storage part 33, a recessed part 32 is provided. The protruded part 31 and the recessed part 32 allow the fitted ring R to follow deformation of the motor casing 9 along the radial direction intersecting with the rotary shaft 5.SELECTED DRAWING: Figure 2
【課題】高温環境下においてもクリープの発生を抑制する。【解決手段】過給機1は、モータケーシング9と、モータケーシング9において回転軸5が挿通される軸受収容部33に嵌め込まれた嵌め輪Rと、嵌め輪Rに配置されて回転軸5を回転可能に支持する軸受23と、を備える。嵌め輪Rの外周面Rbには、凸部31が設けられる。軸受収容部33の内周面33aには、凹部32が設けられる。凸部31及び凹部32は、回転軸5と交差する径方向に沿うモータケーシング9の変形に嵌め輪Rを追従させる。【選択図】図2 |
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