Hydromechanical transmission
- San Diego, CA
A power transmission having three planetary assemblies, each having its own carrier and its own planet, sun, and ring gears. A speed-varying module is connected in driving relation to the input shaft and in driving relationship to the three sun gears, all of which are connected together. 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 connected in driving relation to the input shaft, the other unit, which may have a fixed stroke, being connected in driving relation to the sun gears. The input shaft also drives the carrier of the third planetary assembly. A brake grounds the first carrier in the first range and in reverse and causes drive to be delivered to the output through the first ring gear in a hydrostatic mode. The carrier of the third planetary assembly drives the ring gear of the second planetary assembly, and a first clutching means connects the second carrier with the output in a second range, the brake for grounding the first carrier then being released. A second clutching means enables the third ring gear to drive the output shaft in a third range.
- Research Organization:
- Orshansky Transmission Corp., San Diego, CA (USA)
- DOE Contract Number:
- EY-76-C-03-1165
- Assignee:
- Orshansky Transmission Corporation (New York, NY)
- Patent Number(s):
- US 4116089
- OSTI ID:
- 863188
- Country of Publication:
- United States
- Language:
- English
Similar Records
Hydromechanical transmission with three simple planetary assemblies, one sun gear being mounted on the output shaft and the other two on a common shaft connected to an input-driven hydraulic module
Transmission with a first-stage hydrostatic mode and two hydromechanical stages
Related Subjects
transmission
power
planetary
assemblies
carrier
planet
sun
gears
speed-varying
module
connected
driving
relation
input
shaft
relationship
means
comprise
pair
hydraulic
units
hydraulically
interconnected
serves
pump
motor
vice
versa
variable
stroke
unit
fixed
drives
third
assembly
brake
grounds
range
reverse
causes
drive
delivered
output
gear
hydrostatic
mode
clutching
connects
grounding
released
enables
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
planetary assemblies
driving relationship
sun gears
variable stroke
vice versa
hydromechanical transmission
hydraulic unit
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