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Title:
GAS BEARING DEVICE AND TURBOCHARGER
Document Type and Number:
WIPO Patent Application WO/2022/181510
Kind Code:
A1
Abstract:
This gas bearing device uses gas as an operating fluid. The gas bearing device is provided with: a rotating shaft; a housing that the rotating shaft penetrates; a ring-shaped top foil that is provided inside the housing and that surrounds the periphery of the rotating shaft; a back spring that is provided between the top foil and the housing and on which a plurality of mountains that contact the top foil and valleys that contact the housing are respectively provided; and a pair of snap rings that are fitted in shaft holes of the housing through which the rotating shaft penetrates and that restrict the movement of the back spring in an axial direction of the rotating shaft. A swing groove inclined with respect to the axis of the rotating shaft is provided on at least one snap ring of the pair of snap rings or in a region of the rotating shaft opposing at least one snap ring of the pair of snap rings.

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WO/2010/108620FLAP ASSEMBLY, IN PARTICULAR EXHAUST GAS FLAP ASSEMBLY
JP2008232289BEARING DEVICE, AND ROTATION DRIVING DEVICE HAVING THE SAME
WO/2017/094501FOIL BEARING
Inventors:
FUTAE TAKAYA (JP)
ISAYAMA SHUICHI (JP)
SUZUKI TORU (JP)
SHIBATA NAOMICHI (JP)
Application Number:
PCT/JP2022/006818
Publication Date:
September 01, 2022
Filing Date:
February 21, 2022
Export Citation:
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Assignee:
MITSUBISHI HEAVY IND ENGINE & TURBOCHARGER LTD (JP)
International Classes:
F16C27/02; F02B39/00; F16C37/00
Foreign References:
JPS63166719U1988-10-31
KR100938919B12010-01-28
US20150362012A12015-12-17
JPH07293559A1995-11-07
JP2004092771A2004-03-25
Attorney, Agent or Firm:
SSIP PATENT ATTORNEY CORPORATION (JP)
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