Differential speed transmission

Planetary gear transmission systems or components – Planetary gearing or element – Axis of planet pinion at angle intersecting rotational axis...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

475 9, 74416, 74665A, 74665C, F16H 5708, F16H 128

Patent

active

058072020

ABSTRACT:
A transmission for changing the rotational speed of an engine input shaft to a driven output shaft. The transmission includes a first and second face gears. Each face gear has first and second sets of teeth formed on it. Each set of teeth forms an annular pattern about a central axis. The second set of teeth on each face gear is located within and concentric with the first set of teeth. An input gear, adapted to be driven by the engine output shaft, is disposed between and engaged with the first sets of teeth on the first and second face gears such that rotation of the input gear produces rotation of the first and second face gears in opposite directions about the central axis. An output pinion is rotatably mounted to a pinion shaft. The output pinion is disposed between and engaged with the second sets of teeth on the first and second face gears such that rotation of the face gears produces corresponding rotation of the output pinion about the pinion shaft. The pinion shaft is adapted to rotate a driven output shaft, such as a main rotor shaft on a helicopter, about an axis coincident with the central axis. The transmission of the present invention is designed such that rotation of the first and second face gears about the central axis produces corresponding rotation of the pinion shaft and driven output shaft about the central axis.

REFERENCES:
patent: 66401 (1867-07-01), Schley
patent: 1350456 (1920-08-01), Hewitt
patent: 2376900 (1945-05-01), Case
patent: 3129608 (1964-04-01), Watson
patent: 3260133 (1966-07-01), Mattson
patent: 3364681 (1968-01-01), Glover et al.
patent: 3448946 (1969-06-01), Nagatsu
patent: 4479619 (1984-10-01), Saunders et al.
patent: 4489625 (1984-12-01), White
patent: 4733737 (1988-03-01), Falamak
patent: 4783023 (1988-11-01), Jupe
patent: 5135442 (1992-08-01), Bossler, Jr.
patent: 5271288 (1993-12-01), Hayduk et al.
patent: 5299912 (1994-04-01), Fradenburgh et al.
patent: 5472386 (1995-12-01), Kish
"High-Torque Right-Angle Gearbox", NASA Tech Briefs, Aug. 1996, vol. 20, No. 8, p. 78.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Differential speed transmission does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Differential speed transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Differential speed transmission will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-82046

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.