Ford Global Technolgoies, LLC

Donald Edward Hoffman

David Allen Janson

Gregory Daniel Goleski

Reid Alan Baldwin

Steve G Thomas

Steven Gerald Thomas

Robert Scott Lippert

A transmission gearing arrangement includes four simple planetary gear sets, three brakes, and four clutches. The transmission produces two reverse gear ratios and twelve forward speed ratios in response to engagement of the brakes in clutches in combinations of three. The transmission is suitable for use with a range selector. In a low range, one of the reverse ratios and all twelve of the forward ratios are utilized. In a high range, the other reverse ratio and eleven of the forward ratios are utilized.

Multi-speed transmission

A continuously variable transmission includes four shift elements to establish three forward driving ranges and one reverse driving range. Two of the forward driving ranges utilize recirculating power flow paths in which the power transmitted through the variator is much smaller than the power transmitted by the transmission. Both variator sheaves rotate about axes that are offset from the input axis such that neither sheave is partially submerged in transmission fluid.

Multiple-mode continuously variable transmission

A four gearing-arrangement transmission having six shift-elements cooperatively engaging in combinations of three to provide nine forward speeds and one reverse speed. The transmission having a first gearing-arrangement with an end-gear fixedly coupled to a ground. A second gearing-arrangement with one end-gear fixedly coupled to an input and the other end-gear fixedly coupled to an interior-gear of the first gearing-arrangement. A third gearing-arrangement having an interior-gear fixedly coupled to an output. A fourth gearing-arrangement having a fourth interior-gear fixedly coupled to the input.

Four planetary-gearset step-ratio automatic transmission

A transmission gearing arrangement produces ten forward speed ratios and four reverse speed ratio by selective engagement of three shift elements in various combinations. Some embodiment includes four simple planetary gear sets and seven shift elements of which three or four are brakes. Another embodiment includes two axis transfer gear pairs in place of one of the planetary gear sets. One of the brakes is used only in reverse and may be a latch.

A family of transmission gearing arrangements each establish at least one reverse gear ratio and between nine and fifteen forward gear ratios. A shiftable gearing arrangement establishes a variety of speed ratios between the input and a first shaft. In some embodiments, a fixed speed ratio is established upstream or downstream of the shiftable gearing arrangement. In reverse and low gear ratios, a low clutch couples the first shaft to the output. In the high gear ratios, a combining planetary gear set establishes a linear speed relationship between the first shaft, a second shaft rotating at a speed proportional to the input, and the output.

A family of transmission gearing arrangements provides a plurality of forward speed ratios and one or more reverse speed ratios by selective engagement of shift elements in various combinations. Three simple planetary gear sets are located on the input axis. One of the simple planetary gear sets may have either a split-ring arrangement in which two ring gears are provided with one carrier and one sun gear, or a split-sun arrangement in which two sun gears are provided with one carrier and one ring gear.

A family of transmission gearing arrangements utilize one or two ball variators to establish a continuous range of speed ratios between an input and an output. In each case, the range of speed ratios includes an infinite ratio in which the output is stationary as the input rotates. In some embodiments having two ball variators, the outputs of the variators are combining using a planetary gear set. In other embodiments having two variators, the outputs of the variators are combined using clutches, which may be switchable one-way clutches.

Infinitely variable transmission

A transmission gearing arrangement produces at least nine forward speed ratios and one reverse speed ratio by selective engagement of three shift elements in various combinations. One embodiment includes four simple planetary gear sets, four clutches, and two brakes. Another embodiment includes two axis transfer gear pairs, three simple planetary gear sets, four clutches, and two brakes.

Reusable apparatus for affixing gift material to a presentation device

A family of transmission gearing arrangements each establish at least one reverse gear ratio and between nine and fifteen forward gear ratios. A shiftable gearing arrangement establishes a variety of speed ratio between the input and a first shaft. In some embodiments, a fixed speed ratio is established upstream or downstream of the shiftable gearing arrangement. In reverse and low gear ratios, a low clutch couples the first shaft to the output. In the high gear ratios, a combining planetary gear set establishes a linear speed relationship between the first shaft, a second shaft rotating at a speed proportional to the input, and the output.

A transmission gearing arrangement produces eleven forward speed ratios and one reverse speed ratio by selective engagement of three shift elements in various combinations. One embodiment includes four simple planetary gear sets, four clutches, and two brakes. Another embodiment includes two axis transfer gear pairs, three simple planetary gear sets, four clutches, and two brakes. Each of these embodiments may include a one way brake such that the first shift is non-synchronous. A third embodiment includes four simple planetary gear sets, four brakes, and two clutches.

A nine speed transmission having six shift-elements. An input being selectively coupled with an interior-gear capable of being braked and an end-gear from a first gearing-arrangement and coupled with an interior-gear of a fourth gearing-arrangement. An opposite end-gear from the first gearing-arrangement being fixedly coupled with an interior-gear of a second gearing-arrangement. An end-gear of a third gearing-arrangement being a ground or capable of being braked. An output being coupled with an interior-gear from the third gearing arrangement and an end-gear from the fourth gearing-arrangement. An end-gear of the second gearing-arrangement being a ground and the opposite end-gear being coupled with opposite end-gears from the third and fourth gearing-arrangements. The opposite end-gear of the second gearing-arrangement also being selectively coupled to the interior-gear of the first gearing-arrangement. Coupled, as used here, may mean selectively or fixedly coupled.

Six shift-element step-ratio automatic transmission

A family of transmission gearing arrangements provides a plurality of forward speed ratios and one or more reverse speed ratios by selective engagement of shift elements in various combinations. An input and an output are provided. Three planetary gear sets are located at an offset position relative to the input axis and the output axis. Axis transfer gears are provided to transfer rotational energy from the input to one of the planetary gear sets, and from one of the planetary gear sets to the output.

A power transmission includes an input, output, a planetary gearset including a first sun gear, a first ring gear, a first carrier driveably connected to the input, first pinions supported on the first carrier and meshing with the first sun gear, and second pinions supported on the first carrier and meshing with the first ring gear and first pinions, and a second planetary gearset including a second sun gear, a third sun gear, a second ring gear driveably connected to the output, a second carrier, third pinions supported on the second carrier and meshing with the second sun gear and second ring gear, and fourth pinions supported on the second carrier and meshing with the third sun gear and the third pinions.

Growing community of inventors

Canton, MI, United States of America

Donald Edward Hoffman