HYDRAULIC CIRCUIT FOR POWER STEERING

PURPOSE:To make possible both a hydraulic oscillation reduction function as well as a hydraulic energy loss reduction by bypassing the hydraulic oscillation member of hydaulic circuit for a power steering by a valve means according to the running conditions of vehicle. CONSTITUTION:A high pressure c...

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Bibliographische Detailangaben
1. Verfasser:	NORIMATSU NAOKI
Format:	Patent
Sprache:	eng
Schlagworte:	LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS MOTOR VEHICLES PERFORMING OPERATIONS TRAILERS TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To make possible both a hydraulic oscillation reduction function as well as a hydraulic energy loss reduction by bypassing the hydraulic oscillation member of hydaulic circuit for a power steering by a valve means according to the running conditions of vehicle. CONSTITUTION:A high pressure circuit 15 for leading oil pressure from a pump for power steering 12 is connected to the inlet side of a control valve 10 for power steering. This high pressure circuit 15 is provided with a pressure control valve 14 serving as a valve means as well as a spiral pipe 13 serving as a hydraulic oscillation reduction member. The pressure control valve 14 opens a bypass circuit 17 only at the time of pivotal turning with a small steering counter-force pressure to reduce the pipeline resistance in the high pressure circuit 15 to thereby reduce a hydraulic energy loss.