HYDRAULIC ANTIVIBRATORY DEVICES

A hydraulic antivibratory device is disclosed in which the restricted passage joining together the two chambers (A, B) comprises three portions (4, 5, 6) mounted in parallel, namely a first portion (4) whose flow section remains constant and two other portions (5, 6) whose flow sections are adjustab...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BOUHOURS, JEAN-PAUL
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LIGHTING MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING PERFORMING OPERATIONS SHOCK-ABSORBERS SPRINGS THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A hydraulic antivibratory device is disclosed in which the restricted passage joining together the two chambers (A, B) comprises three portions (4, 5, 6) mounted in parallel, namely a first portion (4) whose flow section remains constant and two other portions (5, 6) whose flow sections are adjustable successively from a zero value to a maximum value by two rotary cams (9, 10) mounted on the same shift (11): the device thus provides good damping for oscillations whose frequencies increase (for example from 5 to 20 Hz) when the shaft is rotating.