Reinforcing device for hydraulic jack - has electrical valve in hydraulic line set to close on loss of flow

The reinforcing device for an hydraulic lift with at least one lifting cylinder. The hydraulic line (12) to the lifting cylinder (6) which is under increased pressure on loading, is connected to the cylinder via an electrical valve (9). When there is loss of flow, the valve springs into the closed p...

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Bibliographische Detailangaben
Hauptverfasser:	DREXEL,PETER, ROTHFUSS,PETER
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	BLASTING CRANES ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HAULING HEATING HOISTING JOINTS OR FITTINGS FOR PIPES LIFTING LIGHTING LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The reinforcing device for an hydraulic lift with at least one lifting cylinder. The hydraulic line (12) to the lifting cylinder (6) which is under increased pressure on loading, is connected to the cylinder via an electrical valve (9). When there is loss of flow, the valve springs into the closed position. The valve has a built-in shutter (13), whose opening cross section (13a) is chosen according to the desired maximum falling speed of the lead. The valve is piped directly to the lifting cylinder (6).