Single clutch layshaft transmission
AssigneeFord Global Technologies, LLC
InventorsReid Baldwin, David Janson
Life of this patent
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Abstract
A transmission includes an input, a first layshaft, a second layshaft, a first power path for transmitting power between the input and first layshaft and producing a first ratio of a speed of the first layshaft and a corresponding speed of the input, a second power path for transmitting power between the input and second layshaft and producing a second ratio of the speed of the second layshaft and corresponding speed of the input; and a clutch for releasably connecting the input and the output.
Claims19
A multiple speed ratio power transmission, comprising:
- an input supported for rotation;
- an input shaft;
- a first layshaft supported for rotation;
- a second layshaft supported for rotation;
- a first power path continually driveably connected to the input shaft for transmitting power between the input shaft and first layshaft, and producing a first ratio of a speed of the first layshaft and a speed of the input;
- a second power path for transmitting power between the input and second layshaft, and producing a second ratio of a speed of the second layshaft and a speed of the input;
- a clutch for driveably connecting and disconnecting the input and the input shaft;
- an output supported for rotation;
- and
- a coupler for driveably connecting and disconnecting the output and the second power path.
A multiple speed power transmission for motor vehicles, comprising:
- an input;
- an input shaft;
- a first layshaft supported for rotation;
- a second layshaft supported for rotation;
- a first power path continually driveably connected to the input shaft for transmitting power between the input shaft and first layshaft, and producing a first ratio of a speed of the first layshaft and a speed of the input;
- a second power path for transmitting power through a one-way drive connection between the input and second layshaft, and producing a second ratio of a speed of the second layshaft and a speed of the input;
- a clutch for driveably connecting and disconnecting the input and the input shaft;
- an output supported for rotation;
- and
- a first coupler for driveably connecting and disconnecting the output and the second power path.
The transmission of 7, wherein the clutch is a friction clutch.
A multiple speed power transmission for motor vehicles, comprising:
- an input;
- an input shaft;
- a first layshaft;
- a second layshaft;
- a first power path continually secured to the input shaft for transmitting power between the input shaft and first layshaft, and producing a first ratio of a speed of the first layshaft and a speed of the input;
- a second power path for transmitting power through a one-way drive connection between the input and second layshaft, and producing a second ratio less than a first ratio of a speed of the second layshaft and a speed of the input;
- a clutch for driveably connecting and disconnecting the input and the input shaft;
- an output;
- and
- a first coupler for driveably connecting and disconnecting the output and the second power path.
The transmission of 14, wherein the clutch is a friction clutch.
Dependencies are inferred from the claim text.