Continuously and/or infinitely variable transmissions and methods therefor
First Claim
1. An infinitely variable transmission comprising:
- a rotatable input shaft arranged along a longitudinal axis of the transmission, the input shaft having an elongated tubular body with a central bore and an opening, wherein the elongated tubular body and the opening define a lubricant passage from an exterior surface to the interior of the transmission;
a stator assembly coupled to, and coaxial with, the input shaft;
a plurality of planets operably coupled to the stator assembly, wherein the plurality of planets are arranged angularly about the longitudinal axis of the transmission;
a traction ring operably coupled to the plurality of planets, wherein the traction ring is substantially fixed from rotating with the input shaft; and
a housing operably coupled to the traction ring, wherein the housing is substantially fixed from rotating with the input shaft.
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0 Petitions
Accused Products
Abstract
An infinitely variable transmission (IVT) having a rotatable input shaft arranged along a longitudinal axis of the transmission. In one embodiment, the input shaft is adapted to supply a lubricant to the interior of the transmission. In some embodiments, a stator assembly is coupled to, and coaxial with, the input shaft. The IVT has a plurality of planets operably coupled to the stator assembly. The planets are arranged angularly about the longitudinal axis of the transmission. In one embodiment, a traction ring is operably coupled to the planets. The IVT is provided with a housing that is operably coupled to the traction ring. The housing is substantially fixed from rotating with the input shaft. The traction ring is substantially fixed from rotating with the input shaft. In some embodiments, the IVT is provided with a lubricant manifold that is configured to supply a lubricant to the input shaft.
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Citations
18 Claims
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1. An infinitely variable transmission comprising:
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a rotatable input shaft arranged along a longitudinal axis of the transmission, the input shaft having an elongated tubular body with a central bore and an opening, wherein the elongated tubular body and the opening define a lubricant passage from an exterior surface to the interior of the transmission; a stator assembly coupled to, and coaxial with, the input shaft; a plurality of planets operably coupled to the stator assembly, wherein the plurality of planets are arranged angularly about the longitudinal axis of the transmission; a traction ring operably coupled to the plurality of planets, wherein the traction ring is substantially fixed from rotating with the input shaft; and a housing operably coupled to the traction ring, wherein the housing is substantially fixed from rotating with the input shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for lubricating internal components of a transmission having a plurality of planets operably coupled to a stator assembly and a traction ring operably coupled to the planets, the method comprising:
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providing a lubricant manifold configured to cooperate with a lubricant source; coupling a main axle of the transmission to the lubricant manifold, the main axle comprising an elongated tubular body having a central bore and an opening, wherein the main axle is adapted to receive a rotational power, wherein the central bore and the opening form a portion of a lubricant passage; providing a shift rod arranged in the central bore of the main axle, the shift rod having a central bore; supplying a lubricant via the lubricant manifold to the main axle; delivering the lubricant via the main axle lubricant passage to the shift rod; providing a housing operably coupled to the traction ring, wherein the housing is substantially fixed from rotating with the main axle; and adapting the traction ring to be substantially fixed from rotating with the main axle. - View Dependent Claims (11, 12, 13, 14)
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15. An infinitely variable transmission comprising:
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a lubricant manifold configured to cooperate with a lubricant source; a rotatable input shaft arranged along a longitudinal axis of the transmission, the input shaft comprising an elongated tubular body having a central bore in fluid communication with the lubricant manifold and an opening to supply a lubricant to the interior of the transmission, wherein the central bore and the opening form a portion of a lubricant passage; a stator assembly coupled to, and coaxial with, the input shaft; a plurality of planets operably coupled to the stator assembly, wherein the plurality of planets are arranged angularly about the longitudinal axis of the transmission; a traction ring operably coupled to the plurality of planets, wherein the traction ring is substantially fixed from rotating with the input shaft; and a housing operably coupled to the traction ring, wherein the housing is substantially fixed from rotating with the input shaft. - View Dependent Claims (16, 17, 18)
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Specification