NOZZLE DEVICE AND EXHAUST TURBO SUPERCHARGER

WIPO Patent Application WO/2020/194651

A1

A nozzle device according to some embodiments is provided with: an annular nozzle plate; an annular nozzle mount that defines a nozzle flow path between the nozzle mount and one surface of the nozzle plate; at least one nozzle support that connects the nozzle plate and the nozzle mount to each other and is caulked and fixed to at least the nozzle plate; and at least one nozzle vane that is supported between the nozzle plate and the nozzle mount. The nozzle plate has a through-hole into which the end of the at least one nozzle support is inserted. The through-hole includes a straight part that extends from the one surface to the other surface of the nozzle plate, a diameter-expansion part that is formed on the other surface side of the nozzle plate and has a diameter larger than that of the straight part, and a relief processed part that is formed at a part of the straight part continuous with the diameter-expansion part and has a diameter larger than that of the other part of the straight part at which the relief processed part is not formed.

SAKAMOTO KEIGO (JP)
KATOU EIGO (JP)
SAKURAI TSUYOSHI (JP)
SAKUMA SHIGEYOSHI (JP)
DAMMOTO YOSUKE (JP)
AKIYAMA YOJI (JP)

PCT/JP2019/013554

October 01, 2020

March 28, 2019

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MITSUBISHI HEAVY IND ENGINE & TURBOCHARGER LTD (JP)

F02B37/24; B21D39/00

WO2014128895A1

2014-08-28

JP2011043119A	2011-03-03
JP2006220053A	2006-08-24
JP2006250146A	2006-09-21
JPH10113714A	1998-05-06
JPS5954126U	1984-04-09
JPS6144006U	1986-03-24
JP2009008164A	2009-01-15

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

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