US 12,228,143 B2
Stabilizer of a compressor
Daniel Rusch, Wettingen (CH); and Gerd Mundinger, Wettingen (CH)
Assigned to ACCELLERON SWITZERLAND LTD., Baden (CH)
Appl. No. 17/927,470
Filed by ACCELLERON SWITZERLAND LTD., Baden (CH)
PCT Filed May 18, 2021, PCT No. PCT/EP2021/063073
§ 371(c)(1), (2) Date Nov. 23, 2022,
PCT Pub. No. WO2021/239504, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 20176373 (EP), filed on May 25, 2020.
Prior Publication US 2023/0175522 A1, Jun. 8, 2023
Int. Cl. F04D 29/42 (2006.01); F04D 27/02 (2006.01); F04D 29/68 (2006.01)
CPC F04D 29/4206 (2013.01) [F04D 27/02 (2013.01); F04D 27/0207 (2013.01); F04D 27/023 (2013.01); F04D 27/0238 (2013.01); F04D 29/681 (2013.01); F05D 2220/40 (2013.01); F05D 2240/12 (2013.01); F05D 2260/96 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A stabilizer of a compressor, comprising:
a first annular stabilizer chamber, wherein the first annular stabilizer chamber surrounds a main flow channel in an intake region of a compressor wheel, said compressor having a direction of flow from the intake region toward the compressor wheel,
a second annular stabilizer chamber, wherein the second annular stabilizer chamber surrounds the first annular stabilizer chamber,
an annular separating element arranged between the first annular stabilizer chamber and the second annular stabilizer chamber,
a first downstream inlet channel defined at least in part by the annular separating element, wherein the first annular stabilizer channel communicates with the main flow channel via the first downstream inlet channel extending parallel to a radial direction, and wherein the first downstream inlet channel is not defined in any part by a housing of the compressor, and
a second downstream inlet channel defined at least in part by the annular separating element and the housing of the compressor, wherein the second downstream inlet channel is separate from the first downstream inlet channel, and wherein the second annular stabilizer channel communicates with the main flow channel via the second downstream inlet channel extending parallel to the radial direction,
wherein at least one of the following applies: at least one first flow guiding element is arranged in the first downstream inlet channel, wherein the first annular stabilizer chamber extends along the direction of flow transversally to the radial direction, and at least one second flow guiding element is arranged in the second downstream inlet channel, wherein the second annular stabilizer chamber extends along the direction of flow transversally to the radial direction.