Planetary gear transmission systems or components – With means to vary drive ratio or disconnect drive – Plural elements selectively braked
Patent
1990-03-22
1990-09-18
Diehl, Dwight
Planetary gear transmission systems or components
With means to vary drive ratio or disconnect drive
Plural elements selectively braked
74191, 475330, F16H 1556, F16H 3706
Patent
active
049574744
ABSTRACT:
A multi-range continuously variable power transmission system having a rotatable system input shaft (52) and a rotatable system output shaft (72), a continuously variable transmission unit (CVT) (14) having CVT input (52) and CVT output shaft (54), a four shaft compound planetary gear power splitter (73) having a first shaft (78) driven by the system input shaft, a second shaft (80) driven by the CVT output shaft a third shaft (84) and a fourth shaft (86) and a multi-range output gear box (75) for driving the system output shaft. The gear box is in the form of a planetary gear set having a carrier shaft (87) eccentric with respect to and connected to the system output shaft (72), sun gear (89) and a grounded ring gear (90). Control means (77) in the form of a plurality of clutches (C1, C2, C3, C4) and at least one heat dissipating friction clutch (D1) is provided for connecting the third and fourth shafts of the splitter to the gear box in a manner to effect four synchronous ranges of system speed, each of such ranges being continuously variable by shuttling the CVT ratio between its extreme ratios. The heat dissipating friction clutch (D1) releasably grounds the gear box ring gear and operates as a starting device to increase the speed of the system output shaft from 0 up to lowest output/input speed of the transmission system.
REFERENCES:
patent: 2086491 (1937-07-01), Dodge
patent: 2716357 (1955-08-01), Rennerfelt
patent: 3203278 (1965-08-01), General
patent: 3675507 (1972-07-01), Takekawa
patent: 3714845 (1973-02-01), Mooney, Jr.
patent: 3969958 (1976-07-01), Miyao et al.
patent: 4297918 (1981-11-01), Perry
patent: 4355547 (1982-10-01), Poole et al.
patent: 4363247 (1982-12-01), Weseloh
patent: 4382392 (1983-05-01), Meyerle et al.
patent: 4434681 (1984-03-01), Friedrich et al.
patent: 4626787 (1986-12-01), Singer
patent: 4630494 (1986-12-01), Kemper
patent: 4644820 (1987-02-01), Macey et al.
patent: 4682511 (1987-07-01), Wittke
patent: 4693134 (1987-09-01), Kraus
patent: 4745821 (1988-05-01), Kemper
patent: 4856371 (1989-08-01), Kemper
Diehl Dwight
Tractiontec Corporation
Ziems Robert F.
LandOfFree
Traction drive transmission system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Traction drive transmission system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Traction drive transmission system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1569614