Apparatus for cooling clutches on a transmission shaft

Apparatus for selectively cooling coaxial first and second engageable and disengageable torque transmitting assemblies which are installed in the power train of a motor vehicle, comprising a source of fluid coolant, first and second passages respectively connecting said source with said first and second assemblies;

• and means for regulating the flow of coolant from said source, through said passages and to the respective assemblies, including a component forming part of one of said assemblies and being movable between a first position in which said first passage establishes a path for the flow of coolant to said first assembly while said first assembly is engaged and a second position in which said second passage establishes a path for the flow of coolant to said second assembly while said second assembly is engaged, said regulating means further comprising a deformable diaphragm having an annular portion, and energy storing means arranged to bias said annular portion against said component.

Apparatus for selectively cooling coaxial first and second engageable and disengageable torque transmitting assemblies which are installed in the power train of a motor vehicle, comprising a source of fluid coolant, first and second passages respectively connecting said source with said first and second assemblies;

• and means for regulating the flow of coolant from said source, through said passages and to the respective assemblies, including a component forming part of one of said assemblies and being movable between a first position in which said first passage establishes a path for the flow of coolant to said first assembly while said first assembly is engaged and a second position in which said second passage establishes a path for the flow of coolant to said second assembly while said second assembly is engaged, said assemblies surrounding a shaft forming part of a change-speed transmission defining a common axis for said assemblies and said regulating means further comprising at least one guide and a diaphragm which is movable with said component and engages said guide in one position of said component, one of said assemblies including an energy storing element which biases said guide in the axial direction of said shaft.

Apparatus for selectively cooling coaxial first and second engageable and disengageable torque transmitting assemblies which are installed in the power train of a motor vehicle, comprising a source of fluid coolant, first and second passages respectively connecting said source with said first and second assemblies;

• and means for regulating the flow of coolant from said source, through said passages and to the respective assemblies, including a component forming part of one of said assemblies and being movable between a first position in which said first passage establishes a path for the flow of coolant to said first assembly while said first assembly is engaged and a second position in which said second passage establishes a path for the flow of coolant to said second assembly while said second assembly is engaged, said regulating means further comprising an annular energy storing element coaxial with said assemblies and including a radially inner portion nearer to and a radially outer portion more distant from the common axis of said assemblies, and a ring abutting at least one of said radially inner and outer portions.