EP 3006740 B1 20181114 - SCREW COMPRESSOR AND REFRIGERATION CYCLE DEVICE
Title (en)
SCREW COMPRESSOR AND REFRIGERATION CYCLE DEVICE
Title (de)
SCHRAUBENVERDICHTER UND KÜHLKREISVORRICHTUNG DAMIT
Title (fr)
COMPRESSEUR À VIS ET DISPOSITIF DE CYCLE DE RÉFRIGÉRATION
Publication
Application
Priority
- JP 2013113748 A 20130530
- JP 2014064346 W 20140529
Abstract (en)
[origin: EP3006740A1] A screw compressor includes an economizer passage (50) provided in a casing (1) and allowing an outside of the casing (1) and a slide groove (14) in which a slide valve (12) is provided to communicate with each other, and an economizer port (12p) provided in the slide valve (12) and allowing the economizer passage (50) to communicate with one of compression chambers (11) in accordance with a position of the slide valve (12). The slide valve (12) gradually advances a timing of starting discharge by moving from a discharge side toward a suction side. The economizer port (12p) is provided at a position where the economizer port (12p) communicates with a suction-pressure chamber (1C) when the slide valve (12) is positioned at an extreme end on the suction side.
IPC 8 full level
F04C 18/52 (2006.01); F04C 28/12 (2006.01); F04C 28/26 (2006.01); F25B 1/047 (2006.01); F04C 29/04 (2006.01)
CPC (source: EP)
F04C 18/52 (2013.01); F04C 28/12 (2013.01); F04C 28/26 (2013.01); F04C 29/042 (2013.01); F25B 1/047 (2013.01); F25B 2400/13 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3006740 A1 20160413; EP 3006740 A4 20170104; EP 3006740 B1 20181114; CN 105247217 A 20160113; CN 105247217 B 20170315; JP 6058133 B2 20170111; JP WO2014192898 A1 20170223; WO 2014192898 A1 20141204
DOCDB simple family (application)
EP 14803724 A 20140529; CN 201480030486 A 20140529; JP 2014064346 W 20140529; JP 2015519948 A 20140529