HYDRAULIC CONTROL DEVICE FOR AUTOMATIC TRANSMISSION

A hydraulic control device (1) for an automatic transmission includes: a variable displacement oil pump (10); a regulator valve (30); and a lubrication control valve (50) configured to select whether or not oil discharged from the variable displacement oil pump (10) is to be supplied to a to-be-lubr...

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Bibliographische Detailangaben
Hauptverfasser:	KAJI, Masahiro, MINAMI, Tatsuhiro, MATSUURA, Koichi, ISHIYAMA, Takashi
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A hydraulic control device (1) for an automatic transmission includes: a variable displacement oil pump (10); a regulator valve (30); and a lubrication control valve (50) configured to select whether or not oil discharged from the variable displacement oil pump (10) is to be supplied to a to-be-lubricated portion. The lubrication control valve (50) has a control port (54) connected to an open/close port (38) of the regulator valve (30). A controlled pressure at the control port (54) is changed in response to opening and closing of the open/close port (38) to select whether or not the oil is to be supplied to the to-be-lubricated portion.