| Patents for F16H 47 - Combinations of mechanical gearing with fluid clutches or fluid gearing (4,840) |
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| 06/27/1991 | WO1991009239A1 Gearshift |
| 06/27/1991 | CA2029125A1 Non-synchronous shifting hydromechanical steering transmission |
| 06/25/1991 | US5026333 Infinitely variable driving and steering transmission mechanism for track-laying vehicles |
| 06/18/1991 | US5024638 Actuator for a frictional engaging device |
| 06/18/1991 | US5024633 Hydromechanical transmission with adjunct flywheel |
| 06/05/1991 | EP0429525A1 Arrangement and process for operating a variable drive unit. |
| 06/05/1991 | EP0429503A1 Process for operating a variable drive unit. |
| 05/29/1991 | EP0428865A2 Arrangement of the power transmission in a bus |
| 05/29/1991 | EP0428545A1 Flexible hydraulic device for driving vehicles, in particular commercial vehicles, at relatively high speed |
| 05/29/1991 | CN2077933U Controllable hydraulic twister |
| 05/28/1991 | US5018351 Hydromechanical drive |
| 05/07/1991 | US5013287 Automatic transmission with stator shaft mounting structure |
| 04/30/1991 | US5011463 Infinitely variable hydrostatic mechanical power shift gear with group shiftings |
| 04/25/1991 | DE4027724A1 Infinitely variable hydrostatic transmission - with planetary gearing and selected drive connections for multiple gear ratios and with several reverse ratios |
| 04/23/1991 | US5010318 System for detecting malfunction of turbine speed measuring device for torque converter of automotive automatic transmission |
| 04/23/1991 | US5009126 Hydrostatic-mechanical drive system |
| 04/16/1991 | US5007309 Automatic transmission control system and method of operation |
| 04/03/1991 | CN2074400U New electro-hydraulic kilhig |
| 04/02/1991 | US5004082 Starting device of an automatic transmission for vehicle |
| 03/27/1991 | EP0418426A1 Gear changing device for an automatic gear box |
| 03/26/1991 | CA1281917C Transmission for a motor vehicle |
| 03/20/1991 | EP0417283A1 Mechanical-hydraulic transmission gear and method of controlling same |
| 03/07/1991 | WO1991000968A3 Variable transmission apparatus |
| 03/05/1991 | US4997412 Non-synchronous shifting hydromechanical steering transmission |
| 02/28/1991 | DE3927783A1 Planetary gear with two sections and two sections an three shafts - has hydrostatic pump and motor, with transformer with drive and driven shafts |
| 02/20/1991 | EP0413476A1 Power transmission with a continuously variable speed range |
| 02/19/1991 | US4994002 Variable-speed power transmission device |
| 02/14/1991 | DE3925703A1 Hydrostatischer antrieb Hydrostatic drive |
| 02/13/1991 | CN2071275U Fluid buffer cycloid speed changer |
| 02/12/1991 | US4991465 Automatic control device for the gearshift of industrial vehicles |
| 02/07/1991 | WO1991001461A1 Arrangement and process for operating a continuously variable driving unit of a motor vehicle |
| 02/07/1991 | WO1991001460A1 Continuously variable driving unit of a motor vehicle |
| 02/06/1991 | EP0412069A1 Hydromechanical power-shift transmission for motor vehicles, particularly for commercial vehicles |
| 02/06/1991 | EP0411371A2 Split-torque hydromechanical transmission |
| 02/06/1991 | EP0356441B1 Hydraulic pressure-regulating device, in particular for powershift gearbox in motor vehicles |
| 02/04/1991 | WO1991001899A1 Hydrostatic drive for vehicles with multi-axle control, process for driving said vehicles and other components hydrostatically |
| 02/04/1991 | CA2037931A1 Hydrostatic drive for vehicles with multi-axle control, process for driving said vehicles and other components hydrostatically |
| 01/24/1991 | WO1991000968A2 Variable transmission apparatus |
| 01/24/1991 | DE4021688A1 Stepless control for mechanical and hydrostatic transmission - compares speeds of input and output shafts for protection of plate clutches from damage by overspeeding |
| 01/24/1991 | DE4021686A1 Continuously variable hydrostatic and mechanical drive unit - has hydrostatic delivery vol. set to min. when starting up, and when running has two mechanical drives coupled to output shaft |
| 01/24/1991 | DE4021652A1 Gearbox with hydrodynamic torque converter - has drive unit with low central of gravity and quiet operation |
| 01/23/1991 | EP0408616A1 Hydrostatic-mecanical power-distribution gearbox. |
| 01/16/1991 | EP0242372B1 Continuously-variable hydromechanical parallel-type gear-box, in particular for motor vehicles |
| 01/08/1991 | US4983149 Nonstep speed change gear |
| 01/08/1991 | US4982620 Method of learning for adaptively controlling an electronic automatic transmission system |
| 01/02/1991 | EP0405082A1 Automatic transmission control system and method of operation |
| 12/27/1990 | EP0238521B1 Branched infinitely-variable hydromechanical transmission for motor vehicles |
| 12/18/1990 | US4977797 Method of shift control in an automatic transmission |
| 12/11/1990 | US4976666 Continuous speed-change branched gear, in particular for motor vehicles |
| 12/11/1990 | US4976665 Vehicle drive device with a hydrostatic-mechanical power splitting transmission |
| 12/11/1990 | US4976664 Vehicle drive transmission having a high power ratio |
| 12/08/1990 | CA2013873A1 Automatic transmission control system and method of operation |
| 11/27/1990 | CA1276957C Track-laying vehicle |
| 11/22/1990 | EP0397804A1 Powershift gearbox with infinitely variable ratio. |
| 11/14/1990 | EP0396911A2 Four speed overdrive inline transmission |
| 11/14/1990 | CN2065699U Balance mechanism for robot horizontal and vertical arm spring |
| 11/07/1990 | EP0395657A1 Hydrostatic-mechanical drive system. |
| 11/06/1990 | US4967621 Hydraulic control device for belt-and-pulley type continuously variable transmission for a vehicle |
| 10/24/1990 | EP0393884A2 System for detecting malfunction of turbine speed measuring device for torque converter of automotive automtic transmission |
| 10/23/1990 | US4964843 Power transmission unit for variable-speed drive of machinery |
| 10/23/1990 | US4964318 Engine control apparatus for improved fuel economy |
| 10/18/1990 | WO1990012227A1 Drive device with gearbox |
| 10/18/1990 | WO1990012225A1 Two-path hydromechanical transmission and control method therefor |
| 10/18/1990 | DE3912386A1 Variable-ratio vehicle transmission - incorporates planetary differential gear and two infinitely variable hydraulic machines |
| 10/18/1990 | DE3912369A1 Vehicle with stepless hydrostatic mechanical power branch drive - has four shaft planetary differential and two sun gears meshing respectively with planet gears |
| 10/17/1990 | EP0392391A2 Four speed transaxle for automotive vehicles |
| 10/17/1990 | EP0195452B1 Contunuously variable compound power shift transmission of the range-speed type with multiple power path |
| 10/11/1990 | DE4010552A1 Electronically controlled hydrostatic transmission for vehicle - has fail-safe switching to one gear ratio if servo pressure fails |
| 10/09/1990 | US4961721 Vehicle drive lines |
| 10/03/1990 | EP0389500A1 Superimposed steering gear for tracklaying vehicles. |
| 09/20/1990 | WO1990010807A1 Hydromechanical orbital transmission |
| 09/13/1990 | DE3903876C1 Transmission with a continuously variable action, a starting clutch and gears for hydrostatic-mechanical operation or hydrostatic operation |
| 09/12/1990 | EP0386214A1 Hydromechanically infinitely variable transmission with power splitting, in particular for motor vehicles. |
| 09/11/1990 | US4955851 Transmission and method of operation |
| 09/04/1990 | US4953647 Transmission systems for high-speed track-laying vehicles or vehicles with non-steerable wheels |
| 08/21/1990 | US4950208 Variable ratio power transmission |
| 08/16/1990 | EP0382132A2 Continuous hydromechanical power transmission with toothed clutches |
| 08/14/1990 | US4947687 Drive system comprising a variable speed driving motor, an adjustable hydrostatic transmission and a gear-changing means |
| 08/07/1990 | US4946429 Power transmission with a continuously variable speed range |
| 07/24/1990 | US4943268 Automatic two-speed transmission for the drive of auxiliary units of a motor vehicle engine |
| 07/24/1990 | US4943267 Mechanical differential |
| 07/18/1990 | EP0237536B1 Branched infinitely-variable hydromechanical transmission for motor vehicles |
| 07/12/1990 | WO1990007661A1 Automatic transmission equipped with auxiliary hydraulic speed-changing gears |
| 07/11/1990 | EP0263856B1 Continuous speed-change branched gear, in particular for motor vehicles |
| 07/10/1990 | US4939954 Drive system for machines and vehicles, with a hydraulic and mechanical transmission arranged thereafter |
| 07/10/1990 | CA1271344A1 Method of controlling transmission with torque converter |
| 07/04/1990 | EP0375798A1 Variable-speed power transmission device |
| 07/03/1990 | US4938097 Four speed transaxle for automotive vehicles |
| 07/03/1990 | US4938096 Automatic transmission for vehicle having forward clutch and counter drive gear positioned between torque converter and gear mechanism |
| 06/20/1990 | EP0373490A2 Continuously variable transmission for vehicle |
| 06/19/1990 | US4934218 Hydraulic control device for an automatic transmission |
| 06/19/1990 | US4934216 Four speed inline transmission overdrive |
| 06/14/1990 | WO1990006457A1 A control system for the supply of pressure medium to an automatic transmission |
| 06/12/1990 | US4932928 Shiftless, continuously-aligning transmission |
| 06/07/1990 | DE3840942A1 Steuereinrichtung zur druckmittelversorgung eines automatischen getriebes Control means for supplying pressure medium to an automatic transmission |
| 06/05/1990 | US4930610 Mounting structure for one-way clutch in automatic transmission |
| 05/31/1990 | DE3839991A1 Vehicle gearbox |
| 05/29/1990 | US4928552 Method and apparatus for power transmission from an engine |
| 05/15/1990 | US4924978 Lock-up device for torque converter |
| 05/10/1990 | DE3900320A1 Means of optimising a drive unit with electronic sensing of the specific characteristic engine data maps |