10-speed transmission
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United States of America Patent
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Apr 6, 2010
Grant Date -
Dec 4, 2008
app pub date -
Jun 4, 2007
filing date -
Jun 4, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The transmission has a plurality of members that can be utilized in powertrains to provide ten forward speed ratios and one reverse speed ratio. The transmission includes four planetary gear sets having six torque-transmitting mechanisms and four fixed interconnections. The powertrain includes an engine and torque converter that is continuously connected to at least 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 the transmission housing, and are operated in combinations of three to establish at least ten forward speed ratios and at least one reverse speed ratio.
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