Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.

Tasuku Masuda

Yosuke Dammoto

Takaya Futae

Shimpei Yokoyama

Yuya Kojima

Seigi Yano

A thrust bearing device is provided with: a rotational shaft; a collar member fitted to the rotational shaft and having a first thrust surface; and a thrust member having an insertion hole into which the rotational shaft is inserted and a second thrust surface which is disposed around the insertion hole and faces the first thrust surface of the collar member. The first thrust surface is configured to be inclined with respect to a plane perpendicular to an axis of the rotational shaft so that a distance between the first thrust surface and the second thrust surface periodically increases and decreases with rotation of the rotational shaft.

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Tokyo, Japan

Tasuku Masuda