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| Number | Title | Issue Date |
| 7707909 | Device for driving accessory machines of a gas turbine engine A device drives auxiliary machines by using power extracted from a multi-shaft gas turbine engine. The gas turbine engine may include a LP shaft and a HP shaft. The machines may be installed in a gearbox. The device may include a first mechanical transmission betwee... | 05/04/2010 |
| 7647851 | Propulsion power transmission device with a hydrodynamic reverse clutch The invention relates to a propulsion power transmission device having a first interface (1) and a second interface (2). According to the invention, a hydrodynamic clutch is mounted in the driving connection between the first interface and the second i... | 01/19/2010 |
| 7357754 | Mechanism and method of controlling an automatic shifting power transmission to effect a first gear launch The present invention provides a mechanism and method of launching a vehicle using a conventional automatic shifting power transmission. By slipping a first gear reaction clutch during a launch, an efficient hydrodynamic fluid drive with a low stall speed may be use... | 04/15/2008 |
| 7222554 | Shift actuator for a transmission A shift actuator for a transmission for turning, in a direction of shift, a shift lever support mechanism mounting the shift lever of the transmission, wherein it comprises an operation lever coupled, at its intermediate portion, to said shift lever support mechanis... | 05/29/2007 |
| 7168540 | Coupling for a mechanical press, shear, or stamper A coupling has a low-torque/high-slip clutch connected between a drive output and an input constituted by a press, shear, or stamper, and a high-torque/low-slip clutch also connected between the output and the input. In a startup phase the low-torque/high-slip clutc... | 01/30/2007 |
| 7155994 | Six-gear or seven-gear dual-clutch transmission A six-gear or seven-gear dual-clutch transmission (1, 30) comprising two clutches (K1, 2) the input sides of which are connected with one drive shaft (2) of a prime mover and the output sides with each one of two input shafts (3, 4) dispo... | 01/02/2007 |
| 7156471 | Two-stage cylinder for applying automatic set and release hand brake An apparatus engageable with a hand brake assembly for automatically applying at least one brake secured to a railway vehicle. The apparatus comprises an operating mechanism which is a two stage pneumatic cylinder having a primary portion for initial phase of the br... | 01/02/2007 |
| 7125297 | Continuously variable transmission A variable speed transmission having a plurality of tilting balls and opposing input and output discs is illustrated and described that provides an infinite number of speed combinations over its transmission ratio range. The use of a planetary gear set allows minimu... | 10/24/2006 |
| 7074149 | Transmission for wheel type working vehicle A transmission for a wheel type working vehicle which makes it possible to reduce a size of a transmission mechanism for transmitting a mechanical driving force and a hydraulic driving force from the transmission to a front and rear wheel driving output shaft that i... | 07/11/2006 |
| 7021169 | Automatic transmission An automatic transmission with input shaft having drive gears and an output shaft with driven gears engaging with the drive gears are provided. A transmission gear for transmitting a power is selectively switched from transmission gear trains of the drive gears and ... | 04/04/2006 |
| 6637294 | Transmission for vehicle The present invention provides a transmission for vehicle with an HST interposed in a drive power transmission path that includes: a housing; a center section having a plate-like shape with a first surface and a second surface opposite to the first surfac... | 10/28/2003 |
| 6588299 | Transmission for a working vehicle A transmission for a working vehicle comprising a transmission mechanism for controlling drive transmission; a first input shaft for transmitting drive from an engine to the transmission mechanism; a second input shaft, usable as an alternative to the fir... | 07/08/2003 |
| 6363815 | Transmission mechanism of vehicle with HST The invention provides a transmission mechanism for use in a vehicle including a vehicle body having one side toward a first direction along the length thereof and the other side toward a second direction opposite to the first direction, the vehicle compr... | 04/02/2002 |
| 6260440 | Method and apparatus for shifting ranges in a continuously variable transmission A transmission assembly having a hydrostatic transmission with a variable displacement hydraulic device which controls a motor speed ratio. The transmission assembly further includes a mechanical transmission coupled to the hydrostatic transmission and ha... | 07/17/2001 |
| 6148974 | Power transmission system for vehicle A modulating clutch unit and a torque converter unit are individually made attachable and detachable to provide a power transmission system for a vehicle with enhanced maintainability. For this purpose, in the power transmission system for a vehicle for t... | 11/21/2000 |
| 5946983 | Hydrostatic mechanical power transmission system particularly hydromechanical transmission for industrial and farming machines and vehicles in general A power transmission system, particularly a hydrostatic-mechanical power transmission system for industrial and farming vehicles and the like, comprising a first train of constantly meshed gears which are adapted to selectively connect, through a first pa... | 09/07/1999 |
| 5761961 | Countershaft manual transmission for motor vehicles A countershaft transmission is provided for a motor vehicle having a prime mover. The transmission comprises a first input shaft carrying a first input gear, a second input shaft coaxial with the first input shaft carrying a second input gear, and a count... | 06/09/1998 |
| 5724866 | Method and an apparatus for controlling a car equipped with an automatic transmission having a lockup clutch The present invention relates to a method and an apparatus for controlling a car equipped with an automatic transmission having a lockup clutch. According to the control method of the present invention, when the lockup clutch is in the lockup state, a var... | 03/10/1998 |
| 5678469 | Creeper drive system A new creeper drive system has a hydraulic motor with first and second flow lines connected thereto. A directional valve apparatus is connected in the flow lines and the system has a flow control valve operable independently of the directional valve appar... | 10/21/1997 |
| 5542307 | Hydrostatic transmission A hydrostatic transmission is provided with a housing, an input shaft supported by and projecting from said housing, a joint disposed on a projecting end of said input shaft, a hydraulic pump disposed in the housing driven by the input shaft, a first outp... | 08/06/1996 |
| 4976664 | Vehicle drive transmission having a high power ratio A drive device for vehicles comprises: a drive prime mover, a power splitting hydrostatic mechanical transmission coupled with the prime mover and having a planetary differential transmission with at least four shafts and two groups of planet wheels, two ... | 12/11/1990 |
| 4976665 | Vehicle drive device with a hydrostatic-mechanical power splitting transmission In the case of hydromechanical power splitting transmission for vehicles the aim of the invention is to make possible the use of the same type of hydrostatic machine is hitherto and of an identical or similar four-shaft planetary differential transmission... | 12/11/1990 |
| 4974472 | Hydraulic power transmission apparatus A hydraulic power transmission apparatus for reducing the speed of rotation of output from a power source and changing the speed of rotation thereof at a given transmission ratio, includes an oil pump having a drive shaft to which the power from the power... | 12/04/1990 |
| 4934214 | Differential gearing A differential gearing wherein a hydrostatic motor is flanked by two mechanical transmissions. The motor is an axial piston motor, a radial piston motor or a gear motor, and its main driving member rotates the input element of one of the transmissions. Th... | 06/19/1990 |
| 4922804 | Variable speed hydraulic unit The variable speed hydraulic unit has the peculiarity of comprising a fixed body and a rotatable body with hydraulic actuation and fixed displacement, which are operatively interconnected. The output shaft of the fixed body is rigidly associated with the ... | 05/08/1990 |
| 4917200 | Steering method and apparatus for skid-steering vehicle Improved steering systems are provided for skid-steering vehicles such as military tanks, track-type tractors and the like. A diesel engine may be used to rotate a drive shaft interconnected by port and starboard planetary gear assemblies, to apply drivin... | 04/17/1990 |
| 4895049 | Stepless speed reducer A stepless speed reducer includes the mechanical power transmission lines for high speed and low speed, the two lines being selectively concluded to effect power transmission. When the working speed ratio comes near a predetermined critical speed ratio, t... | 01/23/1990 |
| 4890508 | Tracked vehicle drive system A drive system includes a vehicle propulsion device 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... | 01/02/1990 |
| 4882947 | Track-laying device A track laying vehicle has a drive motor, a transmission including a gear box, a transmission differential gear, and a pair of tracks; all of which are drivingly interconnected. The vehicle includes direction control means for controlling the relative spe... | 11/28/1989 |
| 4843907 | Hydromechanical power splitting transmission for vehicles A hydromechanical power splitting transmission for use between the prime mover and the axle power train of a vehicle having a planetary differential drive with at least two series of planetary wheels, two sun wheels, a web and annulus, a drive input shaft... | 07/04/1989 |
| 4823628 | Synchromesh transmission suited for use as an automotive automatic transmission A countershaft synchromesh type transmission is arranged to have first and second groups of input and output gear arranged on either side of a set of input and output gears which produce a given speed ratio. With this, the coupling of first and second clu... | 04/25/1989 |
| 4819508 | Transmission system for working vehicles Separate left and right hydrostatic transmissions (17) for controlling rotation of left and right final drive wheels (11) of a working vehicle independently are disposed laterally inwardly of the drive wheels in a vertical posture such that, while an inpu... | 04/11/1989 |
| 4817460 | Infinitely variable steering transmission An infinitely variable steering transmission is constructed to utilize the unidirection, continuous outputs of a pair of traction drive units for accelerating and decelerating a track-laying vehicle through a first forward and reverse propulsion range and... | 04/04/1989 |
| 4817461 | Dual generator phase shifting device In order to effect a phase shift in a dual generator having a pair of rotor-supporting shafts, where the phase shift accommodates optimum performance characteristics in a device requiring minimal space therewithin, the phase shifting device includes a fir... | 04/04/1989 |
| 4813300 | Power transmission with torque converter A transmission having a two-stage torque converter with a turbine and two stators, a one-way clutch and a stator shaft, one of the stators being connected to the stator shaft through the one-way clutch. The reverse drive of the stator connected to the sta... | 03/21/1989 |
| 4813306 | Hydromechanical transmission A hydromechanical transmission that can be used as a simple and efficient continuously variable transmission includes a differential mechanism for forming either a first mehanical transfer line for high speeds or a second mechanical transfer line for low ... | 03/21/1989 |
| 4784019 | Torque converter disconnect and bypass clutch structure for automatic mechanical transmission A torque converter disconnect and bypass clutch assembly (10) for an automatic mechanical transmission system (12) of the type comprising a fluid torque converter (20) drivingly interposed a drive engine (16) and a mechanical change gear transmission (14)... | 11/15/1988 |
| 4774855 | Apparatus for providing an electrical generator with a constant rotational speed from a variable speed input An electrical generator drive which comprises a power source able to transmit power at a rotational speed which may fluctuate substantially in service, an electrical generator which requires a rotational input of power at a substantially constant speed, a... | 10/04/1988 |
| 4773283 | Infinitely variable compound transmission An infinitely variable compound transmission has a tripartite hydrodynamic torque converter having a pump, a turbine member and a guide member relatively rotatable about a common axis. An input pump shaft normally driven by an engine is connected to the p... | 09/27/1988 |
| 4750381 | Hydromechanical transmission A hydromechanical transmission that can be used as an efficient, continuously variable transmission has a differential mechanism, a hydraulic transmission mechanism, a mode selector mechanism, a locking mechanism, and a clutch mechanism. The hydraulic tra... | 06/14/1988 |
