Planetary gear transmission systems or components – Nonplanetary variable speed or direction transmission... – Nonplanetary transmission is belt or chain gearing
Patent
1990-02-20
1991-12-17
Herrmann, Allan D.
Planetary gear transmission systems or components
Nonplanetary variable speed or direction transmission...
Nonplanetary transmission is belt or chain gearing
475214, 474237, F16H 3700
Patent
active
050731572
ABSTRACT:
A mechanically variable transmission is provided by a novel arrangement of sheaves in combination with a power ring which can be utilized with a planetary device to smoothly varying output speed from maximum rotational speed in one direction to maximum speed in the opposite direction while passing through or maintaining zero output speed or any other speed in a forward or reverse direction while the input speed is varied or remains constant. The novel arrangement provides changes in the output speed over the entire range of engine power and under all load conditions since declutching is not necessary to shift gears allowing the engine to operate at a constant horsepower over the entire range of throttle settings and can enhance engine efficiency by allowing the engine to operate at the lowest possible speed and highest torque. The infinitely variable speed transmission and engine can be controlled with a computer control to maintain the engine at full torque but the lowest possible speed while varying the infinitely variable transmission ratio to maintain a constant or desired ground speed.
REFERENCES:
patent: 1242618 (1917-10-01), Stevens
patent: 2330397 (1943-09-01), Trofimov
patent: 2467226 (1949-04-01), Place
patent: 2760386 (1956-08-01), Southwick
patent: 2889716 (1957-12-01), Doty
patent: 3091132 (1963-05-01), Mayfield et al.
patent: 3405571 (1968-10-01), Mersch
patent: 3511349 (1968-08-01), Herscovici
patent: 4406178 (1983-09-01), Gillade
patent: 4546673 (1985-10-01), Shigematsu et al.
patent: 4553450 (1985-11-01), Gizard
patent: 4644820 (1987-02-01), Macey et al.
patent: 4718012 (1988-01-01), Oshiage
Herrmann Allan D.
Massey Ryan W.
Power Engineering & Manufacturing, Ltd.
LandOfFree
Mechanically variable 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 Mechanically variable transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mechanically variable transmission will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-833285