EP 2198125 A4 20130724 - SCREW COMPRESSOR PULSATION DAMPER
Title (en)
SCREW COMPRESSOR PULSATION DAMPER
Title (de)
SCHRAUBENKOMPRESSOR-PULSATIONSDÄMPFER
Title (fr)
AMORTISSEUR DE PULSATION POUR COMPRESSEUR À VIS
Publication
Application
Priority
US 2007021144 W 20071001
Abstract (en)
[origin: WO2009045187A1] A screw compressor (10) comprises a housing (12, 14, 16), a slide valve assembly (23) and a pulsation damper. The housing (12, 14, 16) receives a supply of working matter from a pair of intermeshing screw rotors (18, 20), and comprises a slide recess (51), a pressure pocket (32), and a piston cylinder (54). The slide valve assembly (23) regulates the1 capacity of the screw compressor (10), and comprises a slide valve (36) axially movable within the slide recess (51) and the pressure pocket (32), a piston head (40) axially movable within the piston cylinder (54), and a piston shaft (38) connecting the slide valve (36) with the piston head (40). The pulsation damper comprises a flange (58) for separating the pressure pocket (32) from the piston cylinder (54), a bore (60) for receiving the piston rod (38), and a damping channel (46A) extending through the flange (58).
IPC 8 full level
F01C 1/16 (2006.01)
CPC (source: EP US)
F04C 18/16 (2013.01 - EP US); F04C 28/12 (2013.01 - EP US); F04C 29/0035 (2013.01 - EP US); F04C 29/06 (2013.01 - EP US); F04C 2270/12 (2013.01 - EP US); F04C 2270/13 (2013.01 - EP US); F04C 2270/14 (2013.01 - EP US)
Citation (search report)
- No further relevant documents disclosed
- See references of WO 2009045187A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2009045187 A1 20090409; CN 101809251 A 20100818; CN 101809251 B 20130717; EP 2198125 A1 20100623; EP 2198125 A4 20130724; EP 2198125 B1 20170621; ES 2629981 T3 20170817; US 2010209280 A1 20100819
DOCDB simple family (application)
US 2007021144 W 20071001; CN 200780100896 A 20071001; EP 07839131 A 20071001; ES 07839131 T 20071001; US 67840110 A 20100316