FLOW REGULATOR FOR NUMERIC-CONTROL STARTING OF POWER UNIT Russian patent published in 1995 - IPC

FIELD: hydraulic automation. SUBSTANCE: regulator provides for numeric-control variation of working fluid flow during pressure rise in inlet pipe connection. Flow regulator has case 1 with inlet pipe connection 2 and outlet pipe connection 3 placed in body of spring-loaded plunger 6, variable-section throttle with control rod 10, and channels 12, 13 providing communication between throttle and plunger spaces. Case accommodates interjet chamber 20 whose inlet jet 23 communicates through channels with pipe connection; outlet jet 26 communicates with low-pressure space 22; inlet jet 23 is formed by rod case walls; rod 10 carries spring-loaded piston 15 that forms, together with case walls, piston cavity 16 communicating via jet channel 17 with piston space 18. End portion of rod is built up of two kinematically linked parts one of which forming wall 24 of inlet jet 23 is movable and spring-loaded, and other part mounts stop 29 that functions to limit displacement of rod movable part. EFFECT: improved performance characteristics during power unit starting. 2 cl, 1 dwg