Vehicular transmission pump drives

Claim 2

A transmission including a hydrodynamic torque converter comprising an impeller member, a turbine member and a reaction member located intermediate the turbine and impeller members with all of said members cooperating to provide a flow circuit for torque converter operation, a hydraulic pump having an input, first pump drive means having first one-way clutch means for normally drivingly connecting said pump input to rotate with said impeller member, and second pump drive means including second one-way clutch means and further including drive transmitting means extending through said flow circuit intermediate said reaction member and said impeller member for drivingly connecting said pump input to rotate with said turbine member.

Claim 3

A transmission including a hydrodynamic torque converter comprising an impeller member, a turbine member and a reaction member located intermediate said turbine and impeller members with all of said members cooperating to provide a flow circuit for torque converter operation, a hydraulic pump having an input axially aligned with said hydrodynamic torque converter, first pump drive means including first one-way clutch means located in said hydrodynamic torque converter for normally drivingly connecting said pump input to rotate with said impeller member, second pump drive means located in said hydrodynamic torque converter, said second pump drive means including second one-way clutch means and also including drive transmitting means extending through said flow circuit for drivingly connecting said pump input to rotate with said turbine member, and said drive transmitting means including drive strut means that extends through said flow circuit intermediate said reaction member and said impeller member and is connected around said reaction member to said turbine member.

Claim 4

A transmission including a hydrodynamic torque converter comprising an impeller member, a turbine member and a reaction member located intermediate said turbine and impeller members with all of said members cooperating to provide a flow circuit for torque converter operation, a hydraulic pump having an input axially aligned with said hydrodynamic torque converter, first pump drive means including first one-way clutch means located in said hydrodynamic torque converter for normally drivingly connecting said pump input to rotate with said impeller member, second pump drive means located in said hydrodynamic torque converter, said second pump drive means including second one-way clutch means and also including drive transmitting means extending through said flow circuit for drivingly connecting said pump input to rotate with said turbine member, and said drive transmitting means including drive strut means that extends through said flow circuit intermediate said reaction member and said impeller member and is connected around said reaction member to said turbine member.

Claim 5

A transmission including a hydrodynamic torque converter comprising a rotary housing having an opening in one end, an impeller member connected to rotate with said rotatable housing, a turbine member having a hub, a turbine shaft connected to rotate with said turbine member and extending through said opening outwardly of said converter housing, a reaction member located intermediate said turbine and impeller members and having a hub located intermediate the hub of said turbine member and said one end of said converter housing, a hydraulic pump axially aligned with the axis of said converter housing and said converter members and having an input member extending through said opening into said converter housing, first pump drive means including first one-way clutch means located within said converter housing for normally drivingly connecting said pump input member to rotate with said impeller member, second pump drive means located within said converter housing, said second pump drive means comprising second one-way clutch means located intermediate the hub of said reaction member and said first one-way clutch means, said second pump drive means further comprising drive transmitting means extending through said flow circuit intermediate said reaction member and said impeller member for drivingly connecting said pump input member to rotate with said turbine member by operation of said second one-way clutch means, said first and second one-way clutch means having a common clutch member located between the hub of said reaction member and said one end of said converter housing, and said first and second one-way clutch means each having a cam member whose cam surfaces are inclined so that said first one-way clutch means operates to drivingly connect said pump input member to rotate with said impeller member when said impeller member is rotating faster than said turbine member and said second one-way clutch means operates to drivingly connect said pump input member to rotate with said turbine member when said turbine member is rotating faster than said impeller member.

Claim 6

A transmission including a hydrodynamic torque converter comprising a rotary housing having an opening in one end, an impeller member connected to rotate with said rotatable housing, a turbine member having a hub, a turbine shaft connected to rotate with said turbine member and extending through said opening outwardly of said converter housing, a reaction member located intermediate said turbine and impeller members and having a hub located intermediate the hub of said turbine member and said one end of said converter housing, a hydraulic pump axially aligned with the axis of said converter housing and said converter members and having an input member extending through said opening into said converter housing, first pump drive means including first one-way clutch means located within said converter housing for normally drivingly connecting said pump input member to rotate with said impeller member, second pump drive means located within said converter housing, said second pump drive means comprising second one-way clutch means located intermediate the hub of said reaction member and said first one-way clutch means, said second pump drive means further comprising drive transmitting means extending through said flow circuit intermediate said reaction member and said impeller member for drivingly connecting said pump input member to rotate with said turbine member by operation of said second one-way clutch means, said first and second one-way clutch means having a common clutch member located between the hub of said reaction member and said one end of said converter housing, and said first and second one-way clutch means each having a cam member whose cam surfaces are inclined so that said first one-way clutch means operates to drivingly connect said pump input member to rotate with said impeller member when said impeller member is rotating faster than said turbine member and said second one-way clutch means operates to drivingly connect said pump input member to rotate with said turbine member when said turbine member is rotating faster than said impeller member.

Claim 7

A transmission including a hydrodynamic torque converter comprising a rotary converter housing having an opening in one end, an impeller member connected to rotate with said converter housing, a turbine member, a turbine shaft connected to rotate with said turbine member, a reaction member located intermediate said turbine and impeller members, said impeller member and said turbine member and said reaction member cooperating to provide a closed loop flow circuit, a hydraulic pump external to said converter housing and having an input member axially aligned with said converter member and extending through said opening into said converter housing, a first one-way clutch located within said converter housing and having a driving member connected to rotate with said impeller member and a driven member connected to rotate with said pump input member, one of said clutch members having cam surfaces, clutching means arranged intermediate said cam surfaces and the other clutch member to provide for clutching said pump input member to rotate with said turbine member, a second one-way clutch located within said converter housing and having a driving member and also having a driven member connected to rotate with said pump input member, one of said members of said second clutch having cam surfaces, clutching means for cooperating with said cam surfaces and the other member of said second clutch means to clutch said driving member of said second clutch means to rotate with said driving member of said second clutch means whenever the driving member of said second clutch means is rotating faster than the driving member of said first clutch means, and drive transmitting means for connecting the driving member of said second clutch means to rotate with said turbine membeR, said drive transmitting means including strut means whose longest dimension at least substantially parallels the axis of said converter housing with said strut means extending through said converter flow circuit intermediate said reaction member and said impeller member, said drive transmitting means further comprising means for connecting said strut means inside the loop of said flow circuit to said turbine member.

Claim 8

A transmission including a hydrodynamic torque converter comprising a rotary converter housing having an opening in one end, an impeller member connected to rotate with said converter housing, a turbine member, a turbine shaft connected to rotate with said turbine member, a reaction member located intermediate said turbine and impeller members, said impeller member and said turbine member and said reaction member cooperating to provide a closed loop flow circuit, a hydraulic pump external to said converter housing and having an input member axially aligned with said converter member and extending through said opening into said converter housing, a first one-way clutch located within said converter housing and having a driving member connected to rotate with said impeller member and a driven member connected to rotate with said pump input member, one of said clutch members having cam surfaces, clutching means arranged intermediate said cam surfaces and the other clutch member to provide for clutching said pump input member to rotate with said turbine member, a second one-way clutch located within said converter housing and having a driving member and also having a driven member connected to rotate with said pump input member, one of said members of said second clutch having cam surfaces, clutching means for cooperating with said cam surfaces and the other member of said second clutch means to clutch said driving member of said second clutch means to rotate with said driving member of said second clutch means whenever the driving member of said second clutch means is rotating faster than the driving member of said first clutch means, and drive transmitting means for connecting the driving member of said second clutch means to rotate with said turbine membeR, said drive transmitting means including strut means whose longest dimension at least substantially parallels the axis of said converter housing with said strut means extending through said converter flow circuit intermediate said reaction member and said impeller member, said drive transmitting means further comprising means for connecting said strut means inside the loop of said flow circuit to said turbine member.