COMPRESSOR DRIVE OPERATION METHOD AND APPARATUS Russian patent published in 1998 - IPC

FIELD: compressor engineering, in particular, development of compressors used under limited power facility conditions. SUBSTANCE: method involves periodically disconnecting clutch connecting permanently rotating drive engine with working tool drive mechanism, when predetermined pressure is reached in receiver; transmitting rotation to drive engine in conjunction with flywheel, with clutch being closed, with following decreasing of rotational speed to as low as possible stable rotational speed; disconnecting clutch and accelerating drive engine to idle speed. Compressor has working tool, receiver connected via branch pipe to pressure relay which is electrically connected to clutch actuating member, drive mechanism mechanically connected through clutch to drive engine and flywheel. Drive engine shaft carries speed sensor. Weight of continuously rotating parts is determined by ratios: , where m is total weight of rotating parts; W(min), W(max) are drive engine rotational speeds at idle stroke and at maximum load, respectively; N(enp) is engine nominal power; τ is time interval during which engine, connected to drive mechanism, is rotating; r is electrical isothermal compressor efficiency; l(sp) specific (per 1 kg of gas) isothermal effort expended by theoretical compressor for producing compressed gas per one working cycle; V(h) working volume of compression chamber of compressor; ρ is density of sucked gas; M is momentary weighted output of compressor. Commutator may be positioned between pressure relay and clutch actuating mechanism and connected to speed sensor. Flywheel may be positioned between drive engine and clutch or may be made integral with clutch or it may be positioned at other side of engine. EFFECT: increased efficiency and enhanced reliability in operation. 5 cl, 1 dwg