EP 3018350 A1 20160511 - LOW BACKPRESSURE ROTARY COMPRESSOR
Title (en)
LOW BACKPRESSURE ROTARY COMPRESSOR
Title (de)
ROTATIONSVERDICHTER MIT GERINGEM GEGENDRUCK
Title (fr)
COMPRESSEUR ROTATIF À FAIBLE CONTRE-PRESSION
Publication
Application
Priority
CN 2013078815 W 20130704
Abstract (en)
A low backpressure rotary compressor comprises a housing, a motor and a compressing mechanism. A chamber is provided inside the housing. An air suction pipe is provided on the top of the housing. The motor is arranged in the chamber, and the chamber is divided into an upper chamber and a lower chamber by the motor. Channels are formed between an outer surface of the motor and an inner surface of the housing, and/or in the motor. One end of each channel is communicated with the upper chamber, and the other end of each channel is communicated with the lower chamber. The exhaust volume of the compressor is V, the flow area of the channels is S, the rotating speed of the motor is F, and the flow rate of air passing through the channels is v, so that v=(V*F)/S. Wherein, when F‰¤60 rad/s, 2 (m/s)‰¤ v ‰¤25 (m/s); when F>60 rad/s, 8 (m/s)‰¤ v ‰¤40 (m/s).
IPC 8 full level
F04C 18/356 (2006.01); F04C 29/04 (2006.01)
CPC (source: EP)
F04C 18/356 (2013.01); F04C 23/008 (2013.01); F04C 29/045 (2013.01); F04C 2270/20 (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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3018350 A1 20160511; EP 3018350 A4 20170329; EP 3018350 B1 20200624; AU 2013393765 A1 20151217; AU 2013393765 B2 20160929; WO 2015000162 A1 20150108
DOCDB simple family (application)
EP 13888730 A 20130704; AU 2013393765 A 20130704; CN 2013078815 W 20130704