Planetary gear transmission systems or components – Planetary gearing or element – Coaxial teeth around planet pinion engage axially spaced...
Patent
1998-12-22
2000-04-25
Ta, Khoi Q.
Planetary gear transmission systems or components
Planetary gearing or element
Coaxial teeth around planet pinion engage axially spaced...
475248, 475339, F16H 4806
Patent
active
060538406
ABSTRACT:
An improved gear transmission is disclosed having a constantly variable mechanical advantage. This is accomplished by providing two transmission paths for power transmission between the input and the output of the transmission. The transmission comprises a gear casing, an input shaft rotatably mounted in one end of the gear casing, and an output shaft rotatably mounted in the other end of the gear casing (coaxial to the input shaft). At least one offset shaft is rotatably mounted in the gear casing parallel to the input and output shafts and spaced therefrom. A first sun gear is mounted on the input shaft, and a second sun gear is mounted on the output shaft. A pair of planetary gears is mounted on the offset shaft, and one engages the first sun gear while the other engages the second sun gear. The above-described sun gears and planetary gears maintain a positive engagement at all times between the input shaft and the output shaft and transmit power from the input shaft along two different paths including through rotation of the gear case and directly to the rotating output shaft. The output shaft torque determines the speed and torque of either, differential route. Alternative embodiments are shown which increase and/or decrease the mechanical advantage.
REFERENCES:
patent: 1688194 (1928-10-01), Lyons
patent: 2223413 (1940-12-01), Gasser
patent: 2231784 (1941-02-01), Thungen
patent: 2312376 (1943-03-01), Andrew
patent: 2931252 (1960-04-01), Ferguson et al.
patent: 4142426 (1979-03-01), Baranyi
patent: 4854190 (1989-08-01), Won
patent: 5376057 (1994-12-01), Cooper et al.
patent: 5472387 (1995-12-01), Kamlukin
patent: 5540629 (1996-07-01), Gotman
patent: 5540630 (1996-07-01), Vranish
patent: 5692989 (1997-12-01), Kamlukin
patent: 5711739 (1998-01-01), Hashimoto et al.
patent: 5759130 (1998-06-01), Woytaszek
patent: 5762162 (1998-06-01), Bodtker
patent: 5879262 (1999-03-01), Ikeda et al.
LandOfFree
Gear transmission with automatic continuously variable mechanica does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Gear transmission with automatic continuously variable mechanica, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gear transmission with automatic continuously variable mechanica will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-989549