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US 11,946,511 B2Granted
Ramp-on-ramp overriding clutch arrangement
AssigneeAllison Transmission, Inc.
InventorBurak A. Gecim
Life of this patent
Estimating the term…
Abstract
A clutch arrangement having a first coupler mounted for rotation with a first input gear, a second coupler mounted for rotation with a second input gear, and an input-gear selector mounted for rotation with an input shaft and positioned between the first and second couplers. The input-gear selector is movable on the input shaft relative to the first and second couplers. Engagement of the input-gear selector with the first coupler drives rotation of the first input gear with rotation of the input shaft, and engagement of the input-gear selector with the second coupler drives rotation of the second input gear with rotation of the input shaft.
Claims20
A transmission comprising:
- an input shaft arranged for rotation about an axis, a first input gear, a second input gear, a third input gear, and a fourth input gear coupled to the input shaft for rotation relative to the input shaft about the axis;
- an output shaft spaced apart from the input shaft, first, second, third, and fourth output gears coupled to the output shaft and each engaged with a respective one of the first, second, third, or fourth input gears;
- a first clutch arrangement comprising a first input-gear selector mounted for rotation with the input shaft and positioned between the first and second input gears;
- and
- a second clutch arrangement comprising a second input-gear selector mounted for rotation with the input shaft and positioned between the third and fourth input gears;
- wherein the first input-gear selector is movable on the input shaft relative to the first and second input gears for selectively driving rotation of the first input gear with rotation of the input shaft in a first circumferential direction and a second circumferential direction or rotation of the second input gear with rotation of the input shaft in the first circumferential direction and the second circumferential direction;
- and
- wherein the second input-gear selector is movable on the input shaft relative to the third and fourth input gears for selectively driving rotation of the third input gear with rotation of the input shaft in the first circumferential direction and the second circumferential direction or rotation of the fourth input gear with rotation of the input shaft in the first circumferential direction and the second circumferential direction.
5 more elements
A transmission comprising:
- an input shaft arranged for rotation about an axis, a first splined tube and a second splined tube coupled to the input shaft for rotation relative to the input shaft about the axis, a first input gear mounted on the first splined tube and a second input gear mounted on the second splined tube;
- an output shaft spaced apart from the input shaft, first and second output gears coupled to the output shaft and each of the first and second output gears engaged with a respective one of the first or second input gears;
- and
- a clutch arrangement comprising:
- a first coupler mounted on the first splined tube for rotation with the first input gear, the first coupler including an outer member and an inner member;
- a second coupler mounted on the second splined tube for rotation with the second input gear, the second coupler including an outer member and an inner member;
- and
- an input-gear selector mounted for rotation with the input shaft and positioned between the first and second couplers, the input-gear selector including an outer hub, a first inner hub facing toward the first coupler, and a second inner hub facing toward the second coupler, the first and second inner hubs movable relative to the outer hub,
- wherein the input-gear selector is movable on the input shaft relative to the first and second couplers, engagement of the input-gear selector with the first coupler drives rotation of the first input gear with rotation of the input shaft, and engagement of the input-gear selector with the second coupler drives rotation of the second input gear with rotation of the input shaft.
6 more elements
Dependencies are inferred from the claim text.