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 and a second 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 and second output gears coupled to the output shaft and each engaged with a respective one of the first or second input gears;
- and
- a clutch arrangement comprising:
- a first coupler mounted for rotation with the first input gear, the first coupler including an outer member and an inner member;
- a second coupler mounted 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.
A clutch arrangement comprising:
- a first coupler mounted for rotation with a first input gear about an axis, the first coupler including an outer member and an inner member;
- a second coupler mounted for rotation with a second input gear about the axis, the second coupler including an outer member and an inner member;
- and
- an input-gear selector mounted for rotation with an input shaft about the axis 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.
Dependencies are inferred from the claim text.