Hydrodynamic torque transmitting unit with fluid

Claim 2

In a power transmission, input means and output means, a flywheel driven by said input means, a hydrodynamic unit comprising a housing and input rotor means and output rotor means, selectively engageable clutch means drivingly connecting said input means to said input rotor means, torque-transmitting means operatively connected to said output rotor means, said flywheel having an outer surface, recess means formed in said outer surface of said flywheel, said housing having an extending portion which fits over said outer surfaCe of said flywheel, said extending portion of said housing having integral projections which extend from the inside of said housing into said recess means to rigidly secure said input member to said housing, and said selectively engageable clutch means being operatively disposed in said housing for connecting and disconnecting said rotor means and said flywheel, and motor means for effecting the engagement and disengagement of said clutch means.

Claim 3

In a power transmission having an input and an output, a hydrodynamic unit comprising input rotor means and output rotor means, a flywheel element drivingly connected to said input forming an outer portion of said hydrodynamic unit, said flywheel element having a friction surface thereon disposed outwardly of said rotor means, friction means operatively connected to said input rotor means and selectively engageable with said friction surface of said flywheel element to drivingly connect said flywheel element to said input rotor means, motor means for effecting the engagement and disengagement of said friction means and said friction surface, and said hydrodynamic unit further comprising housing means fitting on said flywheel element and secured directly thereto for housing said input and output rotor means and said selectively engageable friction means and said motor means.

Claim 4

In a power transmission having an input and an output, a hydrodynamic unit comprising input rotor means and output rotor means, a flywheel element drivingly connected to said input forming an outer portion of said hydrodynamic unit, said flywheel element having a friction surface thereon disposed outwardly of said rotor means, friction means operatively connected to said input rotor means and selectively engageable with said friction surface of said flywheel element to drivingly connect said flywheel element to said input rotor means, motor means for effecting the engagement and disengagement of said friction means and said friction surface, and said hydrodynamic unit further comprising housing means fitting on said flywheel element and secured directly thereto for housing said input and output rotor means and said selectively engageable friction means and said motor means.

Claim 5

In a power transmission, an input member, a hydrodynamic unit comprising a housing, an input rotor means and output rotor means for circulating a working fluid therein, torque transmitting means operatively connected to said output rotor means, said input member having an annular flywheel formed at one end thereof which forms the front portion of said hydrodynamic unit and which projects into said housing and terminates in a friction surface, selectively engageable friction means operatively connected to said input rotor means and movable between a first position in which said friction means is frictionally disengaged from said friction surface and a second position in which said friction means drivingly engages said friction surface to thereby connect said input rotor means to said flywheel, and motor means disposed in said housing and having an apply portion for said friction means disposed radially outwardly from said input rotor means for moving said friction means from said first position to said second position.

Claim 6

In a power transmission, an input member, a hydrodynamic unit comprising a housing, an input rotor means and output rotor means for circulating a working fluid therein, torque transmitting means operatively connected to said output rotor means, said input member having an annular flywheel formed at one end thereof which forms the front portion of said hydrodynamic unit and which projects into said housing and terminates in a friction surface, selectively engageable friction means operatively connected to said input rotor means and movable between a first position in which said friction means is frictionally disengaged from said friction surface and a second position in which said friction means drivingly engages said friction surface to thereby connect said input rotor means to said flywheel, and motor means disposed in said housing and having an apply portion for said friction means disposed radially outwardly from said input rotor means for moving said friction means from said first position to said second position.

Claim 7

In a power transmission, an input member, a flywheel operatively connected to said input member, a hydrodynamic unit comprising a housing and input rotor means and output rotor means, connecting means for connecting said flywheel to said housing to permit said input member to drive said housing, torque transmitting means operatively connected to said output rotor means, selectively engageable friction means operatively connected to said input rotor means for drivingly connecting and disconnecting said flywheel and said input rotor means, a source of fluid pressure, fluid operated motor means disposed radially outwardly of said input rotor means for moving said friction means into frictional engagement with said flywheel, and control means including valve means for admitting pressure from said source into said motor means in one condition of operation to effect the engagement of said friction means and for exhausting fluid from said motor means in another condition of operation to effect the disengagement of said friction means.

Claim 8

In a power transmission, an input member, a flywheel operatively connected to said input member, a hydrodynamic unit comprising a housing and input rotor means and output rotor means, connecting means for connecting said flywheel to said housing to permit said input member to drive said housing, torque transmitting means operatively connected to said output rotor means, selectively engageable friction means operatively connected to said input rotor means for drivingly connecting and disconnecting said flywheel and said input rotor means, a source of fluid pressure, fluid operated motor means disposed radially outwardly of said input rotor means for moving said friction means into frictional engagement with said flywheel, and control means including valve means for admitting pressure from said source into said motor means in one condition of operation to effect the engagement of said friction means and for exhausting fluid from said motor means in another condition of operation to effect the disengagement of said friction means.