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Title: Hydromechanical transmission with compound planetary assembly

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.more » The input shaft is also clutchable to the second ring gear of the compound planetary assembly.« less

Inventors:
 [1];  [2]
  1. (late of San Francisco, CA)
  2. (San Diego, CA)
Issue Date:
Research Org.:
Orshansky Transmission Corp., San Diego, CA (USA)
OSTI Identifier:
863552
Patent Number(s):
4196644
Assignee:
Orshansky Transmission Corporation (New York, NY) OSTI
DOE Contract Number:  
EY-76-C-03-1165
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
hydromechanical; transmission; compound; planetary; assembly; power; distinct; ranges; hydrostatic; simple; power-split; single; sun; gears; carrier; sets; elongated; planet; identical; size; speed-varying; module; driving; relationship; gear; clutchable; input; shaft; means; comprise; pair; hydraulic; units; hydraulically; interconnected; serves; pump; motor; vice; versa; variable; stroke; unit; fixed; connected; relation; brake; grounds; range; reverse; causes; drive; delivered; output; mode; rigidly; speed-varying module; speed-varying means; units hydraulically; brake grounds; causes drive; hydrostatic mode; hydraulic units; fixed stroke; hydraulically interconnected; sun gear; power transmission; driving relation; output shaft; input shaft; planetary assembly; driving relationship; sun gears; variable stroke; vice versa; rigidly connected; planet gears; compound planetary; hydromechanical transmission; hydraulic unit; power-split hydromechanical; distinct ranges; /475/

Citation Formats

Orshansky, Jr., deceased, Elias, and Weseloh, William E. Hydromechanical transmission with compound planetary assembly. United States: N. p., 1980. Web.
Orshansky, Jr., deceased, Elias, & Weseloh, William E. Hydromechanical transmission with compound planetary assembly. United States.
Orshansky, Jr., deceased, Elias, and Weseloh, William E. Tue . "Hydromechanical transmission with compound planetary assembly". United States. https://www.osti.gov/servlets/purl/863552.
@article{osti_863552,
title = {Hydromechanical transmission with compound planetary assembly},
author = {Orshansky, Jr., deceased, Elias and Weseloh, William E.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {1}
}

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