GAS BEARING DEVICE AND TURBOCHARGER
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Apr 25, 2024
app pub date -
Feb 21, 2022
filing date -
Feb 21, 2022
priority date (Note) -
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Abstract
A gas bearing device is a gas bearing device for rotatably supporting a rotational shaft by using a gas as a working fluid, including: a housing where the rotational shaft penetrates; an annular top foil disposed inside the housing and surrounding an outer periphery of the rotational shaft; a back spring disposed between the top foil and the housing, and having a plurality of crests contacting the top foil and a plurality of valleys contacting the housing; and a pair of snap rings fitted in shaft holes where the rotational shaft of the housing penetrates, and configured to restrict movement of the back spring in an axial direction of the rotational shaft. An inner peripheral surface of each of the pair of snap rings has self-lubricating properties.
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