EP 0482592 B1 19950125 - Compressor capacity control method and apparatus therefor.
Title (en)
Compressor capacity control method and apparatus therefor.
Title (de)
Methode und Vorrichtung zur Mengenregelung eines Kompressors.
Title (fr)
Méthode et dispositif de contrÔle de capacité d'un compresseur.
Publication
Application
Priority
JP 28427990 A 19901024
Abstract (en)
[origin: EP0482592A1] A compressor capacity control method and an apparatus therefor in which an on-off type control valve (2) provided at the inlet side of a compressor body (1) is made on or off for putting the compressor body (1) in a full load operational condition or in an unload operational condition, respectively; and the pressure (P) at the load side of the compressor (18) is detected (8), and when the detected pressure (P) reaches a predetermined upper pressure limit (Pmax), the on-off type control valve (2) is made off, thereby putting the compressor body (1) in an unload operational condition, while when the detected pressure (P) reaches a predetermined lower pressure limit (Pmin), the on-off type control valve (2) is made on, thereby putting the compressor body 1 in a full load operational condition, whereby a magnitude (q) of load at the load side of the compressor (18) is detected (21; 27c; 8b; 32, 33), and at least one of the upper pressure limit (Pmax) and the lower pressure limit (Pmin) is so changed as to make the on-off switching period ( DELTA t; DELTA t1) of said on-off control valve (2) not shorter than a predetermined value <MATH> <IMAGE>
IPC 1-7
IPC 8 full level
F04B 49/06 (2006.01); F04B 49/08 (2006.01); F04C 18/16 (2006.01); F04C 28/06 (2006.01); F04C 28/24 (2006.01); F04C 29/12 (2006.01)
CPC (source: EP)
F04B 49/065 (2013.01); F04B 49/08 (2013.01); F04C 28/24 (2013.01)
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
EP 0482592 A1 19920429; EP 0482592 B1 19950125; DE 69107010 D1 19950309; DE 69107010 T2 19950824; JP 3125794 B2 20010122; JP H04159491 A 19920602; KR 950013891 B1 19951117
DOCDB simple family (application)
EP 91118009 A 19911022; DE 69107010 T 19911022; JP 28427990 A 19901024; KR 910018706 A 19911024