Title:
DISCRETELY VARIABLE DIAMETER PLANETARY GEAR SET
Document Type and Number:
WIPO Patent Application WO/2011/154921
Kind Code:
A3
Abstract:
A discretely variable diameter gear set having a planetary configuration. The gear set may vary a diameter of a gearwheel by whole numbers of gear teeth in response to changes in input speed of a rotor shaft. Typically, the diameter may be shifted in increments of one gear tooth at a time. A variable effective number of teeth in the sun gear of the gear set may be achieved. Four embodiments of the planetary gear set are outlined: (i) a gear set with a ring and two idler/pinion sets around the sun gear (ii) a gear set with a ring and three idler/pinion sets around the sun gear, (iii) a gear set with a secondary sun (and no ring) and two idler/pinion sets around the sun gear and (iv) a gear set with a secondary sun (and no ring) and three idler/pinion sets around the sun gear.
Inventors:
EITAN NIMROD (IL)
BRENTNALL JONATHAN (US)
BRENTNALL JONATHAN (US)
Application Number:
PCT/IB2011/052534
Publication Date:
March 31, 2016
Filing Date:
June 10, 2011
Export Citation:
Assignee:
EITAN NIMROD (IL)
BRENTNALL JONATHAN (US)
IQWIND LTD (IL)
BRENTNALL JONATHAN (US)
IQWIND LTD (IL)
International Classes:
F16H55/00
Foreign References:
| US20030042357A1 | 2003-03-06 | |||
| US20030080599A1 | 2003-05-01 | |||
| US4776224A | 1988-10-11 | |||
| US20070129208A1 | 2007-06-07 |
Attorney, Agent or Firm:
DR. MARK FRIEDMAN LTD. (54th floor, Ramat Gan, IL)
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