US 11,739,651 B2
Nozzle ring for a radial turbine and exhaust gas turbocharger including the same
Brian Alexander, Carmel, IN (US); Elmar Gröschel, Meisterschwanden (CH); and Bernhard Klein, Baden (CH)
Assigned to Turbo Systems Switzerland Ltd, Baden (CH)
Appl. No. 17/432,424
Filed by Turbo Systems Switzerland Ltd, Baden (CH)
PCT Filed Feb. 21, 2019, PCT No. PCT/US2019/018909
§ 371(c)(1), (2) Date Aug. 19, 2021,
PCT Pub. No. WO2020/171813, PCT Pub. Date Aug. 27, 2020.
Prior Publication US 2022/0275729 A1, Sep. 1, 2022
Int. Cl. F01D 9/04 (2006.01); F01D 25/24 (2006.01)
CPC F01D 9/045 (2013.01) [F01D 25/246 (2013.01); F05D 2220/40 (2013.01); F05D 2230/60 (2013.01); F05D 2240/128 (2013.01); F05D 2240/14 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A nozzle ring for a radial turbine comprising:
a disc-shaped main body having a central opening for passing a shaft therethrough;
guide vanes disposed circumferentially in a radially outer portion on a first surface of the disc-shaped main body;
two or more bores provided in a radially inner portion of the disc-shaped main body; and
a groove provided in the first surface of the disc-shaped main body, the groove connecting at least two of the two or more bores.