Hydraulic torque converter with a lockup clutch between pump and

Details Hydraulic torque converter with a lockup clutch between pump and Hydraulic torque converter with a lockup clutch between pump and

1976-06-24

1977-08-16

Geoghegan, Edgar W.

Power plants

Pressure fluid source and motor

Coaxial impeller and turbine unit

60349, 60362, 60364, 60367, 192 330, F16D 3300

Patent

active

040417018

ABSTRACT:
A hydraulically actuated lockup clutch is arranged between the cores of the pump and turbine elements of a torque converter for directly coupling them together for operation above the clutch point. For engagement and disengagement of the lockup clutch, which can be of the multiplate type, the turbine element is moved toward and away from the pump element under the control of a control valve which selectively communicates a clutch actuating chamber within the converter with an external pump assembly and with a fluid drain. Alternatively, a clutch actuating chamber can be formed between the core of the pump or turbine element and a movable pressure plate, so that the latter may travel toward and away from the former for engagement and disengagement of the clutch.

REFERENCES:
patent: 2235673 (1941-03-01), Dodge
patent: 2920728 (1960-01-01), Forster

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