Class 475/74 - Plural outputs

Subclass of Class 475 - Planetary gear transmission systems or components
Definition: Subject matter wherein the drive train* includes
No. of patents: 40
Last issue date: 10/30/2012

Number	Title	Issue Date
8298106	Steering transmission for tracked vehicles An infinitely variable hydromechanical crossdrive steering transmission having a multiple of forward and reverse ratio ranges and a separately selectable low ratio range in both forward and reverse. The forward and reverse ratio ranges are enabled to shift between r...	10/30/2012
7357750	Differential assembly and transaxle including it A transaxle comprising a transmission, a pair of coaxial axles, a deceleration assembly for decreasing output rotational speed of the transmission, a differential assembly for transmitting power from the deceleration assembly to the pair of axles, and a common housi...	04/15/2008
7337869	Hydraulic hybrid vehicle with integrated hydraulic drive module and four-wheel-drive, and method of operation thereof A vehicle includes an integrated drive module coupled to an axle thereof. The module includes a hydraulic motor configured to provide motive power at an output shaft, and a differential for distributing the motive power to right and left portions of the axle. The hy...	03/04/2008
7303498	Transmission apparatus for a working vehicle A working vehicle comprises: a power source having an output shaft; axles; a cargo deck; and a transmission apparatus for driving axles disposed below the cargo deck. The transmission apparatus includes an input shaft drivingly connected to the output shaft of the p...	12/04/2007
7201702	Drive mechanism for a mobile vehicle A drive mechanism for a mobile vehicle having two motors, the torque of which is added up on a common output shaft (30), one motor being connectable with the output shaft (30) via a first reduction gear step (28) or a second reduction gear step ...	04/10/2007
7179188	Transmission apparatus for a working vehicle A transmission apparatus for a working vehicle comprises a hydrostatic transmission, a sun-and-planetary gearing unit, and an auxiliary speed changing system. The hydrostatic transmission includes a hydraulic pump driven by a prime mover equipped on the working vehi...	02/20/2007
7114333	Axle driving apparatus An axle driving apparatus in which a hydraulic pump and a hydraulic motor which constitute a hydrostatic transmission are disposed on a center section. In a horizontal portion of the center section are provided a pair of linear oil passages in parallel to each other...	10/03/2006
7089644	Method for manufacturing transaxles A method of manufacturing a plurality of left hand control hydrostatic transaxles and a plurality of right hand controlled hydrostatic transaxles. The method includes the steps of: providing a plurality of substantially identical axle modules; providing a plurality ...	08/15/2006
7063638	Continuously variable hydro-mechanical transmission A transmission for use with a power source and a load includes a primary sun gear adapted to be coupled to the power source, a hydrostatic power unit including a pump coupled to a motor, a ring gear driven by the motor, a secondary sun gear coupled to a first output...	06/20/2006
7059433	Riding lawn mower A transmission for speed changing and steering of a vehicle comprises a first HST and a first differential for speed changing and a second HST and a second differential for steering. The first HST is a combination of a hydraulic pump and motor. The pump is driven by...	06/13/2006
6904997	Compact vehicle transmission A compact vehicle has a frame and an operating position thereon for at least one rider. An engine having a drive shaft is on the frame, as are a plurality of operational wheels. A transmission operatively couples the engine and the wheels. The transmission is a hydr...	06/14/2005
6830529	Torque transfer assembly with planetary differential A torque transfer assembly including an input gear, a first output shaft, a second output shaft, a planetary differential and a torque control system. In one embodiment, the planetary differential includes first and second planetary gear set pairs each with inner an...	12/14/2004
6821225	Transmission apparatus for a working vehicle Sun-and-planetary gearing for differentially drivingly connecting the front wheels to the rear wheels is arranged coaxially to a motor shaft of a hydrostatic transmission so as to provide a compact transmission apparatus having the hydrostatic transmission for a wor...	11/23/2004
6773368	Variable speed vehicle powertrains A power dividing device for a vehicle transmission to provide two rotating outputs having variable relative speed of rotation from a single rotatable input. The device includes a first rotational element and a second rotational element housed within the first elemen...	08/10/2004
6651427	Hydrostatic transmission bypass latch A hydrostatic transmission may be placed in a free-wheeling state by rotating a bypass actuator that lifts the motor from a motor running surface whereby hydraulic fluid flows into a transmission cavity. A bypass arm connected to the bypass actuator and t...	11/25/2003
6637293	Hydrostatic Transmission A transmission mounted in a housing and including a hydrostatic pump and motor mounted on a center section, having a motor shaft engaged to and driven by the hydraulic motor. An axle may also be mounted in the housing. The center section is secured to the...	10/28/2003
6616559	Continuously variable transmission A hydraulic and mechanical composite continuously variable transmission (HMT) is disclosed. The HMT includes a hydraulic continuously variable transmission (HST) and a mechanical speed change mechanism using a group of planetary gears as the differential ...	09/09/2003
6533695	Hydromechanical transmission A hydromechanical transmission includes a hydrostatic transmission with coaxially arranged fixed and variable displacement hydrostatic units connected to a planetary gear set. The input shaft of the variable unit extends coaxially through the hollow shaft...	03/18/2003
6487935	Hydrostatic transmission A transmission mounted in a housing and including a hydrostatic pump and motor mounted on a center section, having a motor shaft engaged to and driven by the hydraulic motor. An axle may also be mounted in the housing. The center section is secured to the...	12/03/2002
6450912	Hydromechanical transmission having a continuously variable transmission ratio A transmission comprises: an input shaft intended to be coupled to a motor; an output shaft; an epicyclic reduction unit with an input sun wheel, a ring gear and first and second output shafts respectively fast and slow; a first clutch for connecting the ...	09/17/2002
6374604	Hydrostatic transmission bypass latch A hydrostatic transmission may be placed in a free-wheeling state by rotating a bypass actuator that lifts the motor from a motor running surface whereby hydraulic fluid flows into a transmission cavity. A bypass arm connected to the bypass actuator and t...	04/23/2002
6067878	System and method for restricting gear shift operation in timber harvesting tractors A system for automatically preventing gear shift operation in a timber harvesting tractor when the tractor is moving. The system includes a drive train powered by a transmission. The drive train includes a transfer case which is shifted by the operator of...	05/30/2000
5890981	Hydromechanical transmission having three planetaries and five members A hydromechanical transmission includes a hydrostatic transmission, a mechanical transmission having a planetary gearing mechanism, both being driven by an engine. The output of the hydrostatic transmission interacts with the mechanical transmission to pr...	04/06/1999
5682315	Method and system for controlling a split torque transmission The present invention relates to a method and system for controlling a split torque transmission having a hydrostatic transmission and a mechanical transmission. The control system employs a transmission control and includes a transmission input speed sen...	10/28/1997
5597369	Transfer case with integrated viscous coupling A transfer case for a four-wheel drive vehicle adapted to provide two- to four-wheel drive on-demand in the high range or four-wheel drive in the low range. The transfer case includes an input shaft coupled to the sun gear of a planetary gear set, a main ...	01/28/1997
5314387	Hydrostatic transmission An improved hydrostatic transmission which is compact, reliable and economical to manufacture, including a novel means for reducing the speed of the input to the transaxle using both hydraulics and mechanical gearing; an improved differential which is str...	05/24/1994
5201692	Rider transaxle having hydrostatic transmission A transaxle with a hydrostatic transmission which is compact, reliable and economical to manufacture, including a novel means for hydraulically reducing the speed of the input to the transaxle; an improved differential which is stronger and less complicat...	04/13/1993
5156577	Hydrostatic split-type power transmission A power transmission having a four-shaft double planetary gear (I, II), which is driven on the one hand via a turning gear (WG) and on the other via a variable-displacement gear (HG) and is connectable on the power take-off side via selectable ratio gears...	10/20/1992
5129867	Hydrostatic split-type multi-speed power transmission A power transmision with a hydrostatically branched variable-displacement gear (HG), a two-stage epicyclic gear (I, II) and a mechanical 8-speed transmission that can be operated in forward and reverse, and with a control system (ST) that triggers the clu...	07/14/1992
5052987	Stepless hydrostatic-mechanical transmission A stepless hydrostatic mechanical transmission between a prime mover and a power output train in which an epicyclic differential is incorporated in the transmission and includes at least four shafts, a large and a small sun wheel, two planet wheels in mes...	10/01/1991
5011463	Infinitely variable hydrostatic mechanical power shift gear with group shiftings The gear consists of a four-shaft epicyclic gear, of which one shaft forms the input shaft which is in connection via an infinitely variable hydrostatic gear with the second shaft and of which the two remaining shafts represent connecting shafts which, in...	04/30/1991
4995276	Tracked vehicle drive system A drive system includes a vehicle propulsion drive having a speed change gear box which drives tracks through a pair of planetary gears and a steering drive having a pair of variable hydrostatic drives. The hydrostatic drives engage a neutral shaft which ...	02/26/1991
4887487	Hydro-planetary power division system A system for dividing rotary power to two or more output shafts includes planetary cluster cages that are associated with the output shafts and which are interconnected by a hydraulic circuit. In instances where the output shafts rotate at speeds differen...	12/19/1989
4867012	Variable speed transmission Differential-gearing devices are disclosed in which the differential pinion gears are controlled to induce a speed difference between output shafts, provide a locking and limited slip differential to equalize the speeds of the output shafts or limit their...	09/19/1989
4856368	HST (hydrostatic transmission) containing axle drive apparatus An axle driving apparatus for a small-sized vehicle, such as a tractor, which divides its axle casing into first and second axle casings. A hydraulic pump, provided with a vertical pump shaft, is disposed within one of the axle casings. A hydraulic motor,...	08/15/1989
4738332	Torque splitting system for vehicles A torque splitting device (12) capable of use in a four wheel drive road vehicle has two coupled epicyclic differential devices providing the two outputs and connected respectively with a torque input shaft (30), which may be driven by a vehicle gearbox a...	04/19/1988
4713982	Integral gear box and electrical generating system Reductions in weight, frontal area and overhang moment in an aircraft engine gear box and electrical generating system are achieved in a construction including a gear box housing 20 provided with an input shaft 16 connectable to a power take-off 12. A dif...	12/22/1987
4354400	Hydromechanical transmission A heavy duty hydromechanical transmission adapted for agricultural and industrial type tractors and for heavy duty construction type vehicles as well as line haul tractors is disclosed. The transmission utilizes an input shaft which is driven by a power s...	10/19/1982
4216684	Hybrid drive for motor vehicles The present hybrid drive is especially suitable for buses and the like which must make frequent stops. The engine, clutch, and automatic transmission are arranged in series. A flywheel energy storing device is coupled to the drive train by a further clutc...	08/12/1980
4138907	Hydromechanical transmission with overspeed limited variable drive The operational speed of a fluid drive unit in a hydromechanical transmission is limited by means of an overspeed preventing, one-way clutch establishing a positive drive connection between torque transmitting elements of the hydromechanical transmission....	02/13/1979

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Class 475/74 - Plural outputs