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US 8,939,866 B2Granted
Toroidal traction drive
AssigneeHamilton Sundstrand Corporation
InventorsShin Katsumata, Johannes Wilhelm Picard
Life of this patent
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Abstract
A toroidal traction drive has an axial loading system with a primary loading component and a non-linear cam roller loading component.
Claims20
A toroidal traction drive comprising:
- an axial loading system, wherein said axial loading system has a primary loading component and a non-linear cam roller loading component, and wherein a force required to rotate the non-linear cam roller loading component increases non-linearly as the non-linear cam roller loading component is rotated.
A toroidal traction drive comprising:
- an axial loading system, wherein said axial loading system has a primary loading component and a non-linear cam roller loading component;
- a first roller disk;
- a second roller disk;
- an axial roller gap between said first roller disk and said second roller disk;
- a plurality of cam followers disposed within said axial roller gap;
- wherein each of said plurality of cam followers is a cylindrical cam follower having an cross section;
- and
- wherein at least one of said first roller disk and said second roller disk comprises a gearing portion, wherein said cylindrical cam follower comprises a plurality of gear teeth arranged about a circumference of said ovoid cross section, and wherein said gearing portion and said gear teeth interface.
5 more elements
An integrated drive generator for an aircraft, comprising:
- a toroidal traction drive generator operable to receive rotational power from at least one source;
- a gear operable to output rotational power from said toroidal traction drive to an electrical generator;
- and
- wherein said toroidal traction drive comprises an axial loading system, wherein said axial loading system has a primary loading component and a non-linear cam roller loading component, and wherein a force required to rotate the non-linear cam roller loading component increases non-linearly as the non-linear cam roller loading component is rotated.
1 more element
An integrated drive generator for an aircraft comprising:
- a toroidal traction drive generator operable to receive rotational power from at least one source;
- a gear operable to output rotational power from said toroidal traction drive to an electrical generator;
- wherein said toroidal traction drive comprises an axial loading system, wherein said axial loading system has a primary loading component and a non-linear cam roller loading component;
- a first roller disk;
- a second roller disk;
- and axial roller gap between said first roller disk and said second roller disk;
- a plurality of cam followers disposed within said axial roller gap;
- wherein each of said plurality of cam followers is a cylindrical cam follower having an ovoid cross section.
5 more elements
Dependencies are inferred from the claim text.