Planetary gear transmission systems or components – Condition responsive control – Speed responsive control adjusted or opposed by torque
Reexamination Certificate
2008-07-08
2008-07-08
Lewis, Tisha D (Department: 3681)
Planetary gear transmission systems or components
Condition responsive control
Speed responsive control adjusted or opposed by torque
Reexamination Certificate
active
07396311
ABSTRACT:
An infinitely variable speed ratio planetary ball transmission comprising planetary members in rolling contact with moveable inner and outer races and a constant speed accessory drive system utilizing the transmission. The transmission is infinitely variable between ratios of approximately 0.3 and 1.0. A transmission input shaft is connected to a prime mover such as a vehicle engine crankshaft by a drive belt. The transmission comprises at least one output shaft that is coaxial with the input shaft. An output pulley is attached to the output shaft. A belt is engaged between the output pulley and various engine accessories. A second end of the transmission output shaft may be directly coupled to an engine accessory mounted on the transmission. An included control system senses a crankshaft speed. A processor analyses the crankshaft speed and accordingly adjusts the transmission ratio using a stepper motor connected to a worm drive to maintain a constant output speed regardless of crankshaft speed.
REFERENCES:
patent: 2901924 (1959-09-01), Banker
patent: 2911961 (1959-11-01), McRae
patent: 2913932 (1959-11-01), Oehrli
patent: 2931235 (1960-04-01), Hayward
patent: 2959070 (1960-11-01), Flinn
patent: 3327566 (1967-06-01), Hewko
patent: 3452622 (1969-07-01), Kashihara
patent: 3481220 (1969-12-01), Kaptur
patent: 3504574 (1970-04-01), Okabe
patent: 3641842 (1972-02-01), Hewko
patent: 3653283 (1972-04-01), Betz
patent: 3981205 (1976-09-01), Avramidis et al.
patent: 4020711 (1977-05-01), Woollard
patent: 4061045 (1977-12-01), Kopp
patent: 4100818 (1978-07-01), Woollard
patent: 4147068 (1979-04-01), Woollard et al.
patent: 4216678 (1980-08-01), Butterfield et al.
patent: 4305488 (1981-12-01), McIntosh
patent: 4310321 (1982-01-01), Peter et al.
patent: 4345486 (1982-08-01), Olesen
patent: 4557032 (1985-12-01), Wilson
patent: 4613318 (1986-09-01), McWilliam et al.
patent: 4696664 (1987-09-01), Wilson
patent: 4730516 (1988-03-01), Kaneyuki
patent: 4767385 (1988-08-01), Wilson
patent: 4854921 (1989-08-01), Kumm
patent: 4878401 (1989-11-01), Chung
patent: 4969857 (1990-11-01), Kumm
patent: 5031477 (1991-07-01), Rayner
patent: 5066266 (1991-11-01), Kobayashi
patent: 5122099 (1992-06-01), Boedo et al.
patent: 5129869 (1992-07-01), Sagata et al.
patent: 5139468 (1992-08-01), Churchill et al.
patent: 5147254 (1992-09-01), Baier et al.
patent: 5328419 (1994-07-01), Motl et al.
patent: 5378210 (1995-01-01), Teraoka
patent: 5557977 (1996-09-01), Stockton
patent: 5596872 (1997-01-01), Payne
patent: 5700212 (1997-12-01), Meckstroth
patent: 5709624 (1998-01-01), Donowski
patent: 6216068 (2001-04-01), Gimmler et al.
patent: 6379275 (2002-04-01), Serkh
patent: 6406390 (2002-06-01), Roby
patent: 6442455 (2002-08-01), Kotre et al.
patent: 6461268 (2002-10-01), Milner
patent: 6537175 (2003-03-01), Blood
patent: 6551208 (2003-04-01), Holmes et al.
patent: 2003/0104900 (2003-06-01), Takahashi et al.
patent: 2005/0153813 (2005-07-01), Serkh
patent: 2130314 (1984-05-01), None
patent: 2379250 (2003-03-01), None
patent: 62199227 (1989-02-01), None
patent: 11351331 (1999-12-01), None
patent: WO 01/02751 (2001-01-01), None
patent: WO 03/023256 (2003-03-01), None
970007 “Continuously Variable Accessory Drive System” Copyright 1997 Society of Automotive Engineers, Inc. by Shinji Yasuhara, Takao Tamagawa, and Yasuhiko Hasuda.
EAEC N. 91033 “Variable Accessory Drives—The Potential For Improving Fuel Consumption and Acceleration Performance” by A. Hedman—Chalmers University of Technology Gotborg (S).
Ali Imtiaz
Serkh Alexander
Castleman, Esq. C. H.
Lewis Tisha D
Mahurin, Esq. J. L.
The Gates Corporation
Thurnau, Esq. J. A.
LandOfFree
Transmission and constant speed accessory drive does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transmission and constant speed accessory drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmission and constant speed accessory drive will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2758181