Hydromechanical transmission with compound planetary assembly

Details Hydromechanical transmission with compound planetary assembly Hydromechanical transmission with compound planetary assembly

1978-05-02

1980-04-08

Husar, C. J.

Machine element or mechanism

Elements

Gear casings

74688, 74730, F16H 4704

Patent

active

041966449

ABSTRACT:
A power transmission having three distinct ranges: (1) hydrostatic, (2) simple power-split hydromechanical, and (3) compound power-split hydromechanical. A single compound planetary assembly has two sun gears, two ring gears, and a single carrier with two sets of elongated planet gears. The two sun gears may be identical in size, and the two ring gears may be identical in size. A speed-varying module in driving relationship to the first sun gear is clutchable, in turn, to (1) the input shaft and (2) the second sun gear. The speed-varying means may comprise a pair of hydraulic units hydraulically interconnected so that one serves as a pump while the other serves as a motor and vice versa, one of the units having a variable stroke and being the one clutchable to either the input shaft or to the second sun gear. The other unit, which may have a fixed stroke, is connected in driving relation to the first sun gear. A brake grounds the carrier in the first range and in reverse and causes drive to be delivered to the output shaft through the first ring gear in a hydrostatic mode, the first ring gear being rigidly connected to the output shaft. The input shaft is also clutchable to the second ring gear of the compound planetary assembly.

REFERENCES:
patent: 3665787 (1972-05-01), Wilkinson
patent: 3851544 (1974-12-01), Herman
patent: 3888139 (1975-06-01), Orshansky
patent: 4134311 (1979-01-01), Orshansky

Affiliated with

Also associated with

Rating

Hydromechanical transmission with compound planetary assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-968003