DISPOSITIF DE COMMANDE HYDROSTATIQUE, NOTAMMENT DE DIRECTION

The invention relates to a hydrostatic control device for steering unit device which includes a metering motor and a flat slide directional valve. Slide surfaces of the directional valve are formed by the abutting end faces of an outer housing and a motor housing and between the two slide surfaces t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	HANS CHRISTIAN PETERSEN ET ERIK KYSTER
Format:	Patent
Sprache:	fre
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS LIGHTING MECHANICAL ENGINEERING MOTOR VEHICLES PERFORMING OPERATIONS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TRAILERS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a hydrostatic control device for steering unit device which includes a metering motor and a flat slide directional valve. Slide surfaces of the directional valve are formed by the abutting end faces of an outer housing and a motor housing and between the two slide surfaces there is formed a high pressure zone. Between two end faces of the outer housing and the motor housing opposite thereto is an intermediate pressure zone of larger area which is connected between a first throttle gap associated with the high pressure zone and a second throttle gap leading to the low pressure zone. With the aid of the high pressure zone and the intermediate pressure zone equilibrium can be obtained while incurring only a minimum amount of friction.