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A hydrokinetic torque converter with a lock-up clutch which is located axially between the turbine wheel and the converter housing comprises a piston which, along with the converter housing, defines a chamber. The chamber is connected by means of at least one essentially radial flow guide to a longi

A hydrokinetic torque converter with a lock-up clutch which is located axially between the turbine wheel and the converter housing comprises a piston which, along with the converter housing, defines a chamber. The chamber is connected by means of at least one essentially radial flow guide to a longitudinal hole in the driven shaft. When oil which has been supplied by the converter circuit and has penetrated into the chamber in the vicinity of the friction lining flows through the chamber, the oil can be transported radially inward for discharge by means of the flow guide toward the converter axis, until it can be introduced into the driven shaft inside a ring-shaped zone surrounding the converter-axis which promotes the formation of a vortex when the converter housing is in rotation, and can then be transported via the longitudinal hole in the driven shaft to the reservoir.

대표청구항 ▼

A hydrokinetic lockup torque converter, such as for a motor vehicle, said torque converter comprising: a power input shaft defining an axis of rotation and an axial direction parallel to said axis of rotation; a power output shaft; a converter housing, said converter housing having means for being d

A hydrokinetic lockup torque converter, such as for a motor vehicle, said torque converter comprising: a power input shaft defining an axis of rotation and an axial direction parallel to said axis of rotation; a power output shaft; a converter housing, said converter housing having means for being driven by said power input shaft; a turbine wheel being disposed within said converter housing; said turbine wheel having means for being disposed on and for driving said power output shaft; a pump wheel being disposed adjacent said turbine wheel, said pump wheel having means for being fastened to said converter housing; lockup clutch means for coupling said turbine wheel to said converter housing; said lockup clutch means having an engaged position wherein said turbine wheel is coupled to said converter housing; said lockup clutch means having a disengaged position wherein said turbine wheel and said converter housing are uncoupled from one another; said lockup clutch means comprising: a piston being disposed between said converter housing and said turbine wheel, said piston and said converter housing defining a first chamber therebetween; a second chamber having said pump wheel and said turbine wheel disposed therein; at least one friction lining being disposed between a portion of said converter housing and a portion of said piston; said at least one friction lining having means for contacting said converter housing and said piston in said engaged position of said lockup clutch means; passage means for supplying and discharging converter fluid from said torque converter, said passage means being disposed adjacent said power output shaft; flow guide means for connecting said first chamber to said passage means; said flow guide means comprising means for substantially restricting, tangential movement of the converter fluid during its passage from said first chamber to said passage means and for reducing tangential movement of the converter fluid in said passage means; said tangential movement being movement that is substantially tangent to a circle concentric with respect to the axis of rotation; means for permitting flow of converter fluid from said second chamber into said first chamber in said engaged position of said lockup clutch means; said means for permitting flow being disposed substantially adjacent said at least one friction lining; and said first chamber extending substantially between said means for permitting flow and said flow guide means.