BLOW-OFF DRAIN VALVE FOR CONTROL OF FLUID MEDIUM FLOW, FLUSHING SYSTEM, DETECTING DEVICE OF FLUSHING CYCLE AND METHOD OF PERFORMING FLUSHING CYCLE Russian patent published in 2010 - IPC F02C7/30 

FIELD: engines and pumps.

SUBSTANCE: blow-off drain valve containing a spool installed overlapped in fluid medium line includes control valve and drive connected to control valve for control of fluid medium flow. During flushing the fluid medium flows between supply side and delivery side of spool, and during blowing off process the control valve diverts fluid medium entering from the delivery side from supply side to drain leg. Flushing system includes delivery of fluid medium, which is connected to the inlet of flushing water supply outlet, and supply line connected to flushing water supply system outlet. Blow-off drain valve can be installed overlapped in supply line so that fluid medium can reach the flushing device during flushing process, and in order to prevent fluid medium penetration into flushing device during blowing-off. Detecting device of flushing cycle can be used to indicate to the operator that the flushing process is completed on the basis of conductivity properties of fluid medium leaving the flushed device.

EFFECT: eliminating low pressure water flow to compressor.

27 cl, 4 dwg