| Patents for F16H 39 - Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution (1,535) |
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| 06/13/1995 | US5423183 Hydraulic machine with wedge-shaped swashplate |
| 05/09/1995 | US5412947 Continuously variable transmission |
| 04/19/1995 | EP0648959A2 Hydraulic continuously-variable-transmission |
| 03/28/1995 | US5400594 Slipper guide for a hydrostatic transmission |
| 03/09/1995 | WO1995006830A1 Hydrostatic drive with brake valve |
| 03/07/1995 | US5394698 Hydraulic transmission apparatus |
| 02/28/1995 | US5392603 Bevel gear load balance in a hydrostatic transmission |
| 01/03/1995 | US5377487 Axle driving apparatus having offset output shaft |
| 12/22/1994 | WO1994029618A1 Differential with continuous variable power distribution |
| 12/20/1994 | CA2070690C Hydrostatic transaxle |
| 11/29/1994 | US5368527 Hydromechanical drive unit |
| 11/15/1994 | US5363649 Hydraulic dry valve control apparatus |
| 10/11/1994 | US5353595 Nonstep hydrostatic transmission |
| 08/31/1994 | CN1091503A Stepless speed change device |
| 08/23/1994 | US5339631 Axle driving system |
| 07/06/1994 | EP0389644B1 Variable capacitance, oblique spindle type hydraulique machine |
| 05/17/1994 | US5311740 Hydraulic power transmission |
| 01/26/1994 | CN2154384Y 无级液压变速器 Hydraulic stepless transmission |
| 01/26/1994 | CN2154383Y Hydraulic stepless speed changer |
| 01/18/1994 | US5279185 Bevel gear support with fluid bearings for radial piston hydrostatic machine |
| 01/11/1994 | CA1325979C Unitized power system and vehicles employing same |
| 01/11/1994 | CA1325898C Internal reservoir-defining body for permitting oil expansion within a hydrostatic transmission housing |
| 12/22/1993 | EP0574915A1 A nonstep hydrostatic transmission |
| 12/14/1993 | US5269142 Differential rotation control device with a hydraulic assembly |
| 12/01/1993 | EP0567598A4 Hydraulic machine |
| 11/24/1993 | CN1078778A Stepless speed changing with hydraulic transmission |
| 11/09/1993 | US5259193 Hydraulic transmission system |
| 11/03/1993 | EP0567598A1 Hydraulic machine |
| 10/14/1993 | DE4311501A1 Multispeed hydraulic drive system - consists of radial and axial reciprocating machines connected by distributor disc |
| 10/07/1993 | DE4227228A1 Variable drive for small power unit - has hydraulic pump driving hydraulic motor with swashplate control |
| 09/28/1993 | US5247794 Cylinder block positive hold-down for cold start-up |
| 09/07/1993 | US5241872 Swashplate centering mechanism for a variable displacement pump |
| 09/07/1993 | US5241823 Hydraulic power system having first and second power converters |
| 09/07/1993 | US5241822 Axial piston machine for installation in a gearbox |
| 08/31/1993 | US5239893 W-mechanism and radial-plunger-type hydraulic pressure apparatus incorporating such W-mechanism |
| 08/31/1993 | US5239827 Hydrostatic track ring snubber |
| 08/26/1993 | DE4304897A1 Continuously variable-ratio gearbox - has rotary vane pump with double rotor and adjustment mechanism to compensate eccentricity. |
| 08/19/1993 | WO1993016301A1 Drive with stepless transmission ratio |
| 07/20/1993 | US5228290 Hydrodynamic variator of velocity having radial pistons |
| 07/08/1993 | WO1993013337A1 Infinitely variable differential hydrostatic transmission |
| 06/23/1993 | EP0547947A1 Mobile engine with front and rear hydraulic drive motors |
| 05/19/1993 | CN1020790C Hydraulic variable-speed device |
| 05/18/1993 | US5211064 For a vehicle propulsion system |
| 04/29/1993 | DE4014635A1 Electronically controlled stepless torque distributor with differential gearing - incorporates hydraulic braking of gearbox output and control shafts by programmable controller sensitive to rotational speeds |
| 04/27/1993 | US5205123 Infinitely variable differential hydrostatic transmission |
| 04/20/1993 | CA1316371C Differential gearing |
| 04/15/1993 | DE4133510A1 Hydraulic drive for machine - has flywheel and compression spring to store energy to meet peak energy requirements of the machine |
| 03/17/1993 | EP0531831A1 Axial piston machine for installation in a gear case |
| 03/03/1993 | EP0529657A2 Hydrostatic transmission and relief valve therefor |
| 03/02/1993 | CA1313990C Hydrostatic transmission system and power limiter control therefor |
| 02/24/1993 | EP0528123A1 Hydrostatic transaxle |
| 02/02/1993 | US5182978 Bent axis type variable displacement hydraulic machine |
| 01/12/1993 | US5177967 Hydrostatic transaxle |
| 11/17/1992 | US5163293 Axle driving apparatus with variable depth crescent oil passages |
| 11/10/1992 | CA1309926C Hydraulically operated continuously variable transmission |
| 09/16/1992 | CN1018278B Rotary positive-displacement pump or motor and usage thereof |
| 08/11/1992 | US5136845 Hydrostatic transmission and relief valve therefor |
| 08/05/1992 | CN1063343A Hydraulic variable-speed device |
| 07/29/1992 | CN1017643B Hydraulic speed-changing device |
| 07/23/1992 | WO1992012357A1 Hydraulic machine |
| 07/23/1992 | CA2100461A1 Hydraulic machine |
| 07/02/1992 | DE4041126A1 Hydrostatic gear with pump and motor in gear housing - has two groups of pistons, with tapered washers, plate cams and cylindrical drums |
| 05/19/1992 | CA1301025C Distribution ring in hydraulically operated continuously variable transmission |
| 04/28/1992 | US5107973 Non-stage transmission |
| 04/22/1992 | EP0481022A1 Hydraulic differential in an electrical motor. |
| 04/21/1992 | CA1299062C2 Continuosly variable transmission having distribution valve means |
| 03/11/1992 | EP0474338A1 Hydraulic transmission system |
| 03/10/1992 | US5094077 Hydrostatic transmission with interconnected swash plate neutral valve and brake unit |
| 02/04/1992 | US5085053 Swashplate assembly for a swashplate type hydraulic pressure device |
| 01/23/1992 | DE4022771A1 Hydrostatic converter with rotor element - has only one proportional fluid volume circulating in mechanism |
| 01/15/1992 | CN1057891A 油压变速器 Hydraulic transmission |
| 12/31/1991 | CA1293672C2 Swashplate device with means to adjust the angle of inclination |
| 12/31/1991 | CA1293671C2 Continuously variable transmission including clutch valve means |
| 12/31/1991 | CA1293670C2 Continuously variable transmission with a swashplate pump |
| 12/24/1991 | US5074195 Fixed swash plate for an axial piston machine |
| 12/10/1991 | US5070696 Torque transmission device for variable speed control |
| 11/27/1991 | EP0458218A1 Non-stage transmission |
| 11/26/1991 | US5067933 Unitized power system and vehicles employing same |
| 11/21/1991 | DE4010764A1 Hydrostatic differential drive for motor vehicle - has hydraulic units which can operate as motors or pumps |
| 11/19/1991 | US5065578 Hydrostatic continously variable transmission with adjustable clutch valve |
| 11/05/1991 | US5062267 Hydrostatic transmission containing an axial piston motor located in a recess of a valve controlled axial piston pump |
| 10/29/1991 | US5060477 Hydrostatic continuously variable transmission with a set of pump distributor valves, a set of motor distributor valves and a set of clutch valves arranged radiately with and circumferentially alternating with the motor distributor valves |
| 10/22/1991 | US5058382 Hydrostatically operated continuously variable transmission |
| 10/08/1991 | US5054289 Hydraulic transmission |
| 09/05/1991 | WO1991013274A1 Hydraulic differential in an electrical motor |
| 08/27/1991 | US5042252 Neutral shifting mechanism for hydrostatic transmission |
| 08/13/1991 | US5038634 Power transmission system |
| 06/19/1991 | CA2028642A1 Hydraulic dry valve control apparatus |
| 05/22/1991 | EP0428192A2 Radial pistons hydrostatic transmission |
| 05/14/1991 | US5014513 Self-sealing transfer tube for port plate |
| 03/29/1991 | CA2022999A1 Hydrodynamic variator of velocity having radial pistons |
| 03/26/1991 | US5001964 Pressurized fluid mechanism with two cubic capacities and closed circuit applying same |
| 01/30/1991 | CN1048912A Fluid speed changing device |
| 01/29/1991 | US4987796 Internal reservoir-defining body for permitting oil expansion within a hydrostatic transmission housing |
| 01/22/1991 | CA1279233C Static hydraulic pressure type continuously variable transmission |
| 12/25/1990 | US4980521 Power transmission apparatus |
| 12/19/1990 | EP0403210A2 Hydrostatic drive system |
| 12/19/1990 | EP0402585A1 An internal reservoir-defining body for permitting oil expansion within a hydrostatic transmission housing |
| 12/12/1990 | CA2014905A1 Warm-up control for transmission hydrostatic unit |
| 11/27/1990 | USRE33455 Swashplate assembly for a swashplate type hydraulic pressure device |