EP 3617516 B1 20211006 - SCREW COMPRESSOR, AIR CONDITIONING DEVICE AND REFRIGERATING DEVICE
Title (en)
SCREW COMPRESSOR, AIR CONDITIONING DEVICE AND REFRIGERATING DEVICE
Title (de)
SCHRAUBENVERDICHTER, KLIMATISIERUNGSVORRICHTUNG UND KÜHLVORRICHTUNG
Title (fr)
COMPRESSEUR À VIS, DISPOSITIF DE CLIMATISATION ET DISPOSITIF DE RÉFRIGÉRATION
Publication
Application
Priority
- CN 201710283983 A 20170426
- CN 2017119427 W 20171228
Abstract (en)
[origin: EP3617516A1] Disclosed are a screw compressor, and a gas conditioning apparatus and a refrigeration apparatus including the screw compressor. The screw compressor includes a body (10), in which a gas-supplement channel is provided, and the gas-supplement channel has at least two gas-supplement holes (201) communicated with a compression chamber. A number of the gas-supplement holes in the screw compressor is at least two. Ina case that space available in the body (10) for disposing the gas-supplement holes (201) is limited, a hole diameter of each of the gas-supplement holes (201) is smaller. A larger number of gas-supplement holes (201) with smaller hole diameter are beneficial for reducing gas flow pulsation, thereby reducing noise in a gas-supplement process.
IPC 8 full level
F04C 29/12 (2006.01); F04C 18/16 (2006.01); F04C 29/06 (2006.01)
CPC (source: CN EP US)
F04C 18/16 (2013.01 - CN EP US); F04C 29/06 (2013.01 - CN EP US); F04C 29/12 (2013.01 - CN EP); F04C 29/12 (2013.01 - US); F04C 2240/30 (2013.01 - US); F04C 2250/10 (2013.01 - US); F04C 2250/101 (2013.01 - CN EP US); F24F 13/24 (2013.01 - US)
Citation (examination)
EP 2565456 A1 20130306 - SHANGHAI POWER TECH SCREW MACHINERY CO LTD [CN]
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 3617516 A1 20200304; EP 3617516 A4 20200304; EP 3617516 B1 20211006; CN 106979160 A 20170725; PH 12019502419 A1 20200706; US 2020049148 A1 20200213; WO 2018196427 A1 20181101
DOCDB simple family (application)
EP 17907068 A 20171228; CN 201710283983 A 20170426; CN 2017119427 W 20171228; PH 12019502419 A 20191025; US 201716608763 A 20171228