FIELD: mechanical engineering; transport engineering.
SUBSTANCE: proposed modulator contains housing with spool fitted in its space, gear rack, gear of step motor shaft, and holes. Spool is provided with through axial hole, and gear rack on outer side surface in center. Gear rack is in meshing with gear of shaft of step motor. Shaft is press-fitted in initial position by spring. Two holes in housing communicate with atmosphere, and one is closed by spool. Hole closed by spool in initial position is connected directly with compressed air receiver.
EFFECT: improved operating characteristics of modulator.
1 dwg
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