FIELD: process engineering.
SUBSTANCE: invention relates to hydraulic pulse hand-held machine. Machine comprises motor to generate drive force in compliance with control voltage, hydraulic pulse coupling driven by driving force to create torque pulse in motor shaft passing the position of impact, output shaft coupled with hydraulic pulse coupling shaft to be fitted on work tool front end, and means to adjust driving force controlling control voltage to decrease it for preset period including time of torque transmission to output shaft and to increase at elapsed preset period.
EFFECT: ruled out weak impact force in resumption of forward rotation after shaft reverse rotation immediately after impact.
7 cl, 14 dwg
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