Automatic transmission gear and clutch arrangement

A multi-speed transmission comprising:

• a transmission housing having a front support, the front support including a first apply fluid passage and a second apply fluid passage;
• a first, a second, a third, and a fourth planetary gear sets each having a first, a second, and a third members;
• five torque-transmitting mechanisms, a first and a second of the five torque-transmitting mechanisms each comprising a first apply chamber and a piston wherein the first apply fluid passage is in communication with the first apply chamber of the first of the five torque-transmitting mechanisms and the second apply fluid passage is in communication with the first apply chamber of the second of the five torque-transmitting mechanisms;
• a third, a fourth, and a fifth of the five torque-transmitting mechanisms each comprising an apply chamber, a dam chamber, and a piston;
• wherein the five torque-transmitting mechanisms selectively interconnect at least one of the first, second, and third members with at least one other of the first members, second members, third members, and the transmission housing;
• an input member continuously interconnected with the second member of the second planetary gear set, the input member having:
• a first, a second, a third, and a fourth bores disposed parallel to a longitudinal axis of the input member;
• a first clutch port in communication with the apply chamber of the third of the five torque-transmitting mechanisms and the first bore of the input member;
• a second clutch port in communication with the apply chamber of the fourth of the five torque-transmitting mechanisms and the fourth bore of the input member;
• a third clutch port in communication with the apply chamber of the fifth of the five torque-transmitting mechanisms and the second bore of the input member;
• a first, a second, and a third lubrication port in communication with the first bore of the input member;
• and
• a first, a second, and a third dam port in communication with the dam chambers of the third, fourth, and fifth of the five torque-transmitting mechanisms and the third bore of the input member;
• an output member continuously interconnected to at least one of the second member of the fourth planetary gear set and the second member of the third planetary gear set and having a lubrication bore in communication with the first bore of the input member;
• a sleeve shaft fixed to the front support of the transmission housing;
• a plurality of input member seals;
• and
• a first annular channel, a second annular channel, a third annular channel, and a fourth annular channel wherein the annular channels are defined by the inner surface of the sleeve shaft, the outer surface of the input member, and the plurality of input member seals.

A multi-speed transmission comprising:

• a transmission housing having a front support, the front support including a first apply fluid passage and a second apply fluid passage;
• a first, a second, a third, and a fourth planetary gear sets each having a first, a second, and a third members;
• five torque-transmitting mechanisms, a first and a second of the five torque-transmitting mechanisms each comprising a first apply chamber and a piston wherein the first apply fluid passage is in communication with the first apply chamber of the first of the five torque-transmitting mechanisms and the second apply fluid passage is in communication with the first apply chamber of the second of the five torque-transmitting mechanisms;
• a third, a fourth, and a fifth of the five torque-transmitting mechanisms each comprising an apply chamber, a dam chamber, and a piston;
• an input member continuously interconnected with the second member of the second planetary gear set, the input member having:
• a first, a second, a third, and a fourth bores disposed parallel to a longitudinal axis of the input member;
• a first clutch port in communication with the apply chamber of the third of the five torque-transmitting mechanisms and the first bore of the input member;
• a second clutch port in communication with the apply chamber of the fourth of the five torque-transmitting mechanisms and the fourth bore of the input member;
• a third clutch port in communication with the apply chamber of the fifth of the five torque-transmitting mechanisms and the second bore of the input member;
• a first, a second, and a third lubrication port in communication with the first bore of the input member;
• and
• a first, a second, and a third dam port in communication with the dam chambers of the third, fourth, and fifth of the five torque-transmitting mechanisms and the third bore of the input member;
• an output member continuously interconnected to at least one of the second member of the fourth planetary gear set and the second member of the third planetary gear set and having a lubrication bore in communication with the first bore of the input member;
• a first interconnecting member continuously interconnecting the first member of the first planetary gear set with the first member of the second planetary gear set;
• a second interconnecting member continuously interconnecting the second member of the first planetary gear set with the third member of the fourth planetary gear set;
• a third interconnecting member continuously interconnecting the third member of the second planetary gear set with the first member of the third planetary gear set;
• and
• a fourth interconnecting member continuously interconnecting the second member of the third planetary gear set with the second member of the fourth planetary gear set;
• a sleeve shaft fixed to the front support of the transmission housing;
• a plurality of input member seals;
• a first annular channel, a second annular channel, a third annular channel, and a fourth annular channel wherein the annular channels are defined by the inner surface of the sleeve shaft, the outer surface of the input member, and the plurality of input member seals, and
• wherein the first annular channel communicates with the first bore of the input member through a first port, the second annular channel communicates with the second bore of the input member through a second port, the third annular channel communicates with the third bore of the input member through a third port, and the fourth annular channel communicates with the fourth bore of the input member through a fourth port;
• and
• wherein the first of the five torque transmitting mechanisms is selectively engageable to interconnect at least one of the first member of the first planetary gear set and the first member of the second planetary gear set with the stationary element;
• the second of the five torque transmitting mechanisms is selectively engageable to interconnect the third member of the first planetary gear set with the stationary element;
• the third of the five torque transmitting mechanisms is selectively engageable to interconnect at least one of the second member of the second planetary gear set and the input member with the first member of the fourth planetary gear set;
• the fourth of the five torque transmitting mechanisms is selectively engageable to interconnect at least one of the third member of the second planetary gear set and the first member of the third planetary gear set with the first member of the fourth planetary gear set;
• and
• the fifth of the five torque transmitting mechanisms is selectively engageable to interconnect the third member of the third planetary gear set with the first member of the fourth planetary gear set.