AUTOMATIC UNIT FOR DISCHARGING PUMP

AUTOMATIC UNIT FOR DISCHARGING PUMP

FIELD: hydraulic actuating mechanisms, namely systems with servomechanisms without control devices, particularly in pump stations of powered timbers for automatically discharging pumps. SUBSTANCE: automatic unit includes housing with connecting ducts, return valve, relief valve with cone closing mem...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: JUROV JU.M, GORDEEV V.V, BALALAEV A.V, KANANENKOV G.G
Format: Patent
Sprache:eng ; rus
Schlagworte:
BLASTING
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
HEATING
LARGE UNDERGROUND CHAMBERS
LIGHTING
MECHANICAL ENGINEERING
MINING
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
SHAFTS
TUNNELS
WEAPONS
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Beschreibung
Zusammenfassung:FIELD: hydraulic actuating mechanisms, namely systems with servomechanisms without control devices, particularly in pump stations of powered timbers for automatically discharging pumps. SUBSTANCE: automatic unit includes housing with connecting ducts, return valve, relief valve with cone closing member, servovalve. The last has stem contacting with successively arranged pushing plungers. Cavity under central pushing plunger is separated from supply duct by throttling passage and it is connected with hydropneumatic accumulator. Cavity embedding spring of servovalve is connected with control cavity of relief valve by means of one throttle and with supply duct - by means of another throttle. EFFECT: enhanced reliability, efficiency and dynamic properties of hydraulic system. 1 dwg