BEARING DEVICE AND ROTARY MACHINE

WIPO Patent Application WO/2018/029835

A1

A bearing device equipped with a carrier ring, a first bearing part provided along the outer circumference of a rotor shaft on the inner-circumferential side of the carrier ring, a second bearing part provided along the outer circumference of the rotor shaft on the inner-circumferential side of the carrier ring and on the downstream side relative to the first bearing part in the direction of rotation of the rotor shaft, and a pair of side plates positioned along the outer circumference of the rotor shaft on both sides of the carrier ring in the axial direction, wherein a groove extending in the circumferential direction along the lateral surface of the first bearing part in at least part of the range across which the first bearing part extends is formed in a region of the inner-circumferential surface of each of the side plates on the carrier ring sides thereof. The bearing device is further equipped with an oil-guiding part which guides oil that has flowed into the groove from the gap between the inner-circumferential surface of the first bearing part and the outer-circumferential surface of the rotor shaft, and returns this oil to a location between the downstream-side end section of the first bearing part and the upstream-side end section of the second bearing part.

NAKANO TAKASHI (JP)
SHINOHARA TANEHIRO (JP)
KAIKOGI TAKAAKI (JP)
WAKI YUICHIRO (JP)
OZAWA YUTAKA (JP)

PCT/JP2016/073666

February 15, 2018

August 10, 2016

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MITSUBISHI HITACHI POWER SYS (JP)

F16C17/03; F16C33/10

JP2016142311A	2016-08-08
US20020141670A1	2002-10-03
JP2010203481A	2010-09-16
US5738447A	1998-04-14
JP2016011698A	2016-01-21

SEISHIN IP PATENT FIRM, P.C. (JP)

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