Processing

Please wait...

Settings

Settings

Goto Application

1. WO2021041564 - PURE ROLLING CYCLOID TRANSMISSIONS WITH VARIABLE EFFECTIVE DIAMETER ROLLERS AND ROLLER CONSTRAINTS

Publication Number WO/2021/041564
Publication Date 04.03.2021
International Application No. PCT/US2020/048029
International Filing Date 26.08.2020
IPC
F16H 1/32 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
1Toothed gearings for conveying rotary motion
28with gears having orbital motion
32in which the central axis of the gearing lies inside the periphery of an orbital gear
F16H 1/28 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
1Toothed gearings for conveying rotary motion
28with gears having orbital motion
F16H 25/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
25Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
04for conveying rotary motion
06with intermediate members guided along tracks on both rotary members
F16H 57/08 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
57General details of gearing
08of gearings with members having orbital motion
CPC
F16H 1/32
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
1Toothed gearings for conveying rotary motion
28with gears having orbital motion
32in which the central axis of the gearing lies inside the periphery of an orbital gear
F16H 2001/325
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
1Toothed gearings for conveying rotary motion
28with gears having orbital motion
32in which the central axis of the gearing lies inside the periphery of an orbital gear
325comprising a carrier with pins guiding at least one orbital gear with circular holes
F16H 25/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
25Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
04for conveying rotary motion
06with intermediate members guided along tracks on both rotary members
Applicants
  • SRI INTERNATIONAL [US]/[US]
Inventors
  • KERNBAUM, Alexander
  • KITCHELL, Murphy
Agents
  • RELLINGER, Benjamin, A.
Priority Data
62/891,55126.08.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PURE ROLLING CYCLOID TRANSMISSIONS WITH VARIABLE EFFECTIVE DIAMETER ROLLERS AND ROLLER CONSTRAINTS
(FR) TRANSMISSIONS CYCLOÏDES À ROULEMENT PUR PRÉSENTANT DES ROULEAUX DE DIAMÈTRE EFFECTIF VARIABLE ET DES CONTRAINTES DE ROULEAU
Abstract
(EN)
A variety of transmissions, and improvements thereof, are provided having improved efficiency and other benefits. The transmissions include one or more inner members that are driven by one or more cams or other means to engage in precessional rotation about an axis of rotation that, itself, orbits about a primary axis of rotation. A plurality of shaped rollers are in contact with shaped cutouts on the inner member(s) and on a ground member such that an input rotation/torque applied via the cam is realized as an output rotation/torque at an output member that is coupled to the inner member(s). Tire rollers and contact surfaces are shaped such that the rollers engage in rolling motion relative to the contact surfaces, providing improved efficiency. Multiple inner members, and corresponding sets of shaped rollers, can be provided to increase power capacity, reduce torque ripple, reduce wobble, or provide other benefits.
(FR)
La présente invention concerne diverses transmissions et des améliorations de celles-ci, qui présentent une efficacité améliorée et d'autres avantages. Les transmissions comprennent un ou plusieurs éléments internes qui sont entraînés par une ou plusieurs cames ou d'autres moyens pour venir en prise en rotation précessionnelle autour d'un axe de rotation qui, lui-même, tourne en orbite autour d'un axe de rotation primaire. Une pluralité de rouleaux mis en forme est en contact avec des découpes mises en forme sur l'élément/les éléments interne(s) et sur un élément de mise à la terre de sorte qu'une rotation/un couple d'entrée appliqué(e) par l'intermédiaire de la came est réalisé(e) sous la forme d'une rotation/un couple de sortie au niveau d'un élément de sortie qui est accouplé à l'élément/aux éléments interne(s). Les rouleaux de pneu et les surfaces de contact sont mis en forme de sorte que les rouleaux entrent en mouvement de roulement par rapport aux surfaces de contact, ce qui permet d'obtenir une efficacité améliorée. De multiples éléments internes et des ensembles correspondants de rouleaux mis en forme peuvent être fournis pour augmenter la capacité de puissance, réduire l'ondulation de couple, réduire l'oscillation ou fournir d'autres avantages.
Latest bibliographic data on file with the International Bureau