Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least seven forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having six torque-transmitting mechanisms and two fixed interconnections. Also, one planetary gear member is continuously connected with the transmission housing. The powertrain includes an engine and torque converter that is not continuously connected to any of the planetary gear members and an output member that is continuously connected with at least one of the planetary gear members. The six torque-transmitting mechanisms provide interconnections between various gear members and with the input shaft, output shaft, and transmission housing, and are operated in combinations of three to establish at least seven forward speed ratios and one reverse speed ratio.

Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least seven forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having six torque-transmitting mechanisms and one fixed interconnection. Also, one planetary gear member is continuously connected with the transmission housing. The powertrain includes an engine and torque converter that is continuously connected to one of the planetary gear members and an output member that is continuously connected with another one of the planetary gear members. The six torque-transmitting mechanisms provide interconnections between various gear members and with the transmission housing, and are operated in combinations of three to establish at least seven forward speed ratios and one reverse speed ratio.

Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least five forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets and four clutches. The powertrain includes an engine and torque converter that is continuously connected to at least one member of the third planetary gear set and an output member that is continuously connected with another of the third planetary gear set. A member of the first planetary gear set is continuously connected with the transmission housing. The four clutches provide interconnections between various gear members, interconnecting members, and with the input and the output shaft, and are operated in combinations of two to establish at least five forward speed ratios.

Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least seven forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having six torque-transmitting mechanisms. The powertrain includes an engine and torque converter that is continuously connected to at least one member of the planetary gear arrangement and an output member that is continuously connected with another of the planetary gear members. One planetary gear member is continuously connected with the transmission housing. The six torque-transmitting mechanisms provide interconnections between various gear members and with the transmission housing, and are operated in combinations of four to establish at least seven forward speed ratios and one reverse speed ratio.

Abstract: A family of power transmissions have three planetary gearsets each of which have first, second, and third members. A pair of fixed interconnecting members establish continuous connections between a member of the first planetary gearset and a member of the second planetary gearset, and between another member of the second planetary gearset and a member of the third planetary gearset, respectively. Each of the transmission family members has an output shaft, which is continuously connected with at least one member of one of the planetary gearsets and an input shaft, which is selectively connectible with at least two members of the planetary gearsets through respective first and second torque-transmitting mechanisms. Four other torque-transmitting mechanisms are provided to establish various interconnections between members of the planetary gearsets and/or members of the planetary gearsets and the transmission housing.

Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least seven forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets with two brakes, four clutches and three fixed interconnections. The powertrain includes an engine and torque converter that is continuously connected to at least one member of the planetary gear arrangement and an output member that is continuously connected with another of the planetary gear members. The two brakes and four clutches provide interconnections between various gear members and with the transmission housing, the input or output shaft, and the three fixed interconnections, and are operated in combinations of two to establish at least seven forward speed ratios.

Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least seven forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets and six torque transmitting mechanisms. The powertrain includes an engine and torque converter that is continuously connected to at least one member of the planetary gear arrangement and an output member that is continuously connected with another of the planetary gear members. The six torque transmitting mechanisms provide interconnections between various gear members and with the transmission housing, the input or output shaft, in some instances, and are operated in combinations of two to establish at least seven forward speed ratios.

Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least five forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets and four clutches. The powertrain includes an engine and torque converter that is continuously connected to at least one member of the third planetary gear set and an output member that is continuously connected with another of the third planetary gear set. A member of the first planetary gear set is continuously connected with the transmission housing. The four clutches provide interconnections between various gear members, interconnecting members, and with the input and the output shaft, and are operated in combinations of two to establish at least five forward speed ratios.

Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least five forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets, two brakes and two clutches. The powertrain includes an engine and torque converter that is continuously connected with at least one member of the planetary gear arrangement and an output member that is continuously connected with another of the planetary gear members. The two brakes and two clutches provide interconnections between various gear members and with the transmission housing, the input or output shaft, in some instances, and are operated in combinations of two to establish at least five forward speed ratios.

Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least five forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets and four clutches. The powertrain includes an engine and torque converter that is continuously connected to at least one member of the planetary gear arrangement and an output member that is continuously connected with another of the planetary gear members. At least one other planetary gear member is continuously connected with the transmission housing. The four clutches provide interconnections between various gear members and with the input and the output shaft, and are operated in combinations of two to establish at least five forward speed ratios.

Abstract: A family of power transmissions have three planetary gearsets each of which have first, second, and third members. A pair of fixed interconnecting members establish continuous connections between a member of the first planetary gearset and a member of the second planetary gearset, and between another member of the second planetary gearset and a member of the third planetary gearset, respectively. Each of the transmission family members has an output shaft, which is continuously connected with at least one member of one of the planetary gearsets and an input shaft, which is selectively connectible with at least two members of the planetary gearsets through respective first and second torque-transmitting mechanisms. Four other torque-transmitting mechanisms are provided to establish various interconnections between members of the planetary gearsets and/or members of the planetary gearsets and the transmission housing.

Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least five forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets and four clutches. The powertrain includes an engine and torque converter that is continuously connected to at least one member of the planetary gear arrangement and an output member that is continuously connected with another of the planetary gear members. At least one member of the first and second planetary gear sets is continuously connected with the transmission housing. The four clutches provide interconnections between various gear members and with the input and the output shaft, and are operated in combinations of two to establish at least five forward speed ratios and one reverse speed ratio.

Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least five forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets, one brake, and three clutches. The powertrain includes an engine and torque converter that is continuously connected to at least one member of the planetary gear arrangement and an output member that is continuously connected with another of the planetary gear members. At least one member of the first gear set is continuously connected with the transmission housing. The brake and three clutches provide interconnections between various gear members and with the input and the output shaft, and sometimes with the transmission housing, and are operated in combinations of two to establish at least five forward speed ratios and one reverse speed ratio.

Abstract: A continuously variable transmission (CVT) has a drive sheave and a driven sheave, each of which has an adjustable portion, that are positioned by hydraulic control pistons. The pistons are pressurized from a control system to properly position each adjustable portion, such that a flexible drive member, trained over the sheaves, operates at the required diameter to establish the desired speed ratio between the drive sheave and the driven sheave. The control has two variable displacement pump assemblies that supply hydraulic fluid at the required pressure to maintain the desired ratio and to effect a ratio change as required by the operating conditions. One of the pumps supplies a primary pressure which is proportional to the torque requirement of the CVT and the other pump supplies the necessary pressure bias to effect the ratio change.

Abstract: A traveling chain mechanism has spaced sprockets with an endless chain trained around them. A traveling chain is transferable between the sprockets radially inward of the endless chain. The speed ratio between the sprockets is dependent upon which sprocket has the traveling chain connected thereto. By transferring the traveling chain between the sprockets, the speed ratio is changed. A derailer mechanism initiates the transfer of the traveling chain from one sprocket to the other. The derailer mechanism incorporates a pair of axially spaced derailer arms that are axially movable into the path of a long pin on a lead link of the traveling chain. The long pin engages the arms to cause pivoting thereof thereby aligning a ramp thereon with the shorter pins on each link. The derailer arms guide the traveling chain to a guide track for transportation by the endless chain to the other sprocket.

Abstract: A chain drive mechanism has spaced sprockets about which is trained an endless chain. A traveling chain is disposed radially inward of the endless chain and encircles one or the other of the sprockets during power transmission. The traveling chain is transportable between the sprockets so that the speed ratio therebetween can be altered. When encircling a sprocket, the traveling chain is locked or latched to the sprocket. The lock mechanism has a retainer pin and a locking pin. The locking pin is connected for conjoint movement with the retainer pin which is positioned in latched and unlatched positions. In the unlatched position of the retainer pin, the lock pin engages an opening in the link of the traveling chain thereby securing the traveling chain to the sprocket.