US 12,247,567 B2
Scroll compressor with direct return of oil from an oil separator into a compression portion
Manuel Wagner, Gosheim (DE)
Assigned to Sanden International (Europe) GmbH, Bad Nauheim (DE)
Appl. No. 18/262,803
Filed by SANDEN INTERNATIONAL (EUROPE) GMBH, Bad Nauheim (DE)
PCT Filed Jan. 25, 2022, PCT No. PCT/EP2022/051608
§ 371(c)(1), (2) Date Apr. 11, 2024,
PCT Pub. No. WO2022/161941, PCT Pub. Date Aug. 4, 2022.
Claims priority of application No. 10 2021 101 627.4 (DE), filed on Jan. 26, 2021.
Prior Publication US 2025/0035114 A1, Jan. 30, 2025
Int. Cl. F04C 29/02 (2006.01); F04C 18/02 (2006.01)
CPC F04C 29/026 (2013.01) [F04C 18/0215 (2013.01); F04C 18/0261 (2013.01); F04C 29/028 (2013.01)] 20 Claims
OG exemplary drawing
 
1. Scroll compressor for compressing a fluid, comprising:
a compression section with
an inlet of the compression section for sucking the fluid into the compression section,
an outlet of the compression section for discharging the compressed fluid out of the compression section,
a stationary disk having a stationary spiral, and
an orbiting disk having an orbiting spiral, the orbiting disk being orbitable relative to the stationary disk along a compression direction to move the fluid from the inlet of the compression section to the outlet of the compression section, thereby compressing the fluid; and
an oil separator for separating oil from the compressed fluid;
wherein the scroll compressor additionally comprises a direct oil return for directly returning oil from the oil separator to the compression section, the direct oil return comprising at least one orifice opening,
wherein the direct oil return comprises a first flow valve,
characterized in that the direct oil return comprises an outgassing chamber arranged between the first flow valve and the orifice opening of the direct oil return, and
in that the scroll compressor has a fluid return for returning fluid from the outgassing chamber to the compression section.