HYDRAULIC SYSTEM FOR A TORQUE CONVERTER

A hydraulic circuit (160) supplies pressurized hydraulic fluid to and from a torque converter (130) that is operatively associated with a lockup clutch (132). The torque converter (130) is disposed upstream of an outlet regulator (192) that maintains a predetermined pressure in the torque converter...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Nauman, Benjamin D, Boston, James, Manning, Eric J
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 circuit (160) supplies pressurized hydraulic fluid to and from a torque converter (130) that is operatively associated with a lockup clutch (132). The torque converter (130) is disposed upstream of an outlet regulator (192) that maintains a predetermined pressure in the torque converter (130). Power transmission in a powertrain (122) can be directed through the torque converter (130) during a hydrodynamic mode and can be directed through the lockup clutch (132) during lockup mode. To switch between the hydrodynamic mode and the lockup mode, the hydraulic circuit (160) includes a diverter valve (180) to selectively direct pressurized hydraulic fluid between the torque converter (130) and the lockup clutch (132). When operating in the lockup mode, the diverter valve (180) further diverts hydraulic fluid discharged for the torque converter (130) to bypass the outlet regulator (192) disposed downstream of the torque converter (130).