Rotorcraft and planetary gear systems
US-2015354668-A1 · Dec 10, 2015 · US
Compound planetary friction drive
US10113618B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10113618-B2 |
| Application number | US-201715461170-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 16, 2017 |
| Priority date | Sep 19, 2014 |
| Publication date | Oct 30, 2018 |
| Grant date | Oct 30, 2018 |
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Abstract
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Compound planetary friction drive comprising an input shaft driving a sun wheel, wherein said sun wheel engages planetary wheels, which planetary wheels are arranged with a first part having a first radius and a second part having a second radius that differs from the first radius, and where-in a ring cylinder is provided that is engaged by the planetary wheels such that the sun wheel is in frictional engagement with the first part of the planetary wheels and the ring cylinder is in frictional engagement with the second part of the planetary wheels, wherein the planetary wheels are hollow and compressible.
First claim
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What is claimed is: 1. A compound planetary friction drive comprising a first sun wheel, wherein said first sun wheel engages planetary wheels, which planetary wheels are arranged with a first part having a first radius and a second part having a second radius, wherein the second radius differs from the first radius and a transition region is provided between the first part and the second part, and wherein at least one ring annulus is provided that is driven by the planetary wheels, wherein the first sun wheel is in frictional engagement with the first part of the planetary wheels, said first part of the planetary wheels is in frictional engagement with a first ring annulus and a second ring annulus is in frictional engagement with the second part of the planetary wheels, and wherein the planetary wheels are both hollow and compressible uninterruptedly along their entire length spanning the first part, the transition region and the second part. 2. The compound planetary friction drive according to claim 1 , wherein the second part of the planetary wheels cooperates with an idling second sun wheel. 3. The compound planetary friction drive according to claim 1 , wherein first idling wheels are imposed between the first part of the planetary wheels and the first ring annulus, and second idling wheels are imposed between the second part of the planetary wheels and the second ring annulus. 4. The compound planetary friction drive according to claim 3 , wherein the first idling wheels and the second idling wheels are axially aligned. 5. The compound planetary friction drive according to claim 3 , wherein the first idling wheels and the second idling wheels are mounted on a carrier structure which allows the first and second idling wheels to rotate freely, but remain in axial alignment.
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- What does patent US10113618B2 cover?
- Compound planetary friction drive comprising an input shaft driving a sun wheel, wherein said sun wheel engages planetary wheels, which planetary wheels are arranged with a first part having a first radius and a second part having a second radius that differs from the first radius, and where-in a ring cylinder is provided that is engaged by the planetary wheels such that the sun wheel is in fri…
- Who is the assignee on this patent?
- Technische Unversiteit Delft, Univ Delft Tech
- What technology area does this patent fall under?
- Primary CPC classification F16H13/06. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Oct 30 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).