FIELD: engines and pumps.
SUBSTANCE: pump 10 incorporates magnet 14 arranged on cup 16 of pneumatic engine 18 and two reed transducers 20 arranged inside valve cover 22 to follow rate and position of valve 16. Solenoid is arranged on valve cup 22 to receive instructions about extending of plunger into valve cup 16 to stop the valve, thus, inhibiting pump runaway. Three methods can be used to increase storage battery life and follow solenoid plunger position, two them using variation in solenoid inductance to follow solenoid travel.
EFFECT: possibility to diagnose faulty components of pump pneumatic engine.
3 cl, 6 dwg
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