US 12,066,025 B2
Scroll compressor provided with a discharge muffler arrangement
Remi Bou Dargham, Villeurbanne (FR); Alain Laville, Trévoux (FR); Arnaud Daussin, Trevoux (FR); and Jean-Jacques Laissus, Reyrieux (FR)
Assigned to DANFOSS COMMERCIAL COMPRESSORS, Trevoux (FR)
Filed by Danfoss Commercial Compressors, Trevoux (FR)
Filed on Oct. 4, 2022, as Appl. No. 17/959,573.
Claims priority of application No. 21/12577 (FR), filed on Nov. 26, 2021.
Prior Publication US 2023/0167825 A1, Jun. 1, 2023
Int. Cl. F04C 29/06 (2006.01); F04C 18/02 (2006.01); F04C 23/00 (2006.01)
CPC F04C 29/068 (2013.01) [F04C 18/0215 (2013.01); F04C 29/065 (2013.01); F04C 23/008 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A scroll compressor including:
a compressor shell having a discharge outlet,
an orbiting scroll arranged within the compressor shell and comprising an orbiting base plate and an orbiting spiral wrap extending from the orbiting base plate,
a fixed scroll arranged within the compressor shell and comprising a fixed base plate and a fixed spiral wrap extending from the fixed base plate, the fixed and orbiting spiral wraps defining, with the fixed and orbiting base plates, compression chambers, the fixed scroll further comprising a discharge passage which is formed in the fixed base plate,
a discharge pressure volume at least partially defined by the compressor shell and the fixed scroll,
a discharge muffler arrangement attached to the fixed scroll and arranged in the discharge pressure volume,
wherein the discharge muffler arrangement includes a first tubular element provided with a muffler inlet fluidly connected to the discharge passage,
wherein the first tubular element includes a first open end defining the muffler inlet and a second open end which is remote from the muffler inlet and which is fluidly connected to the discharge pressure volume,
an expansion chamber fluidly connected to an inner volume of the first tubular element through apertures formed in the first tubular element,
wherein the inner volume is a volume between the muffler inlet and the second open end of the first tubular element, and a second tubular element including an inlet opening emerging in the expansion chamber and an outlet opening fluidly connected to the discharge pressure volume; and
wherein the second open end of the first tubular element opens into the discharge pressure volume.