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| Number | Title | Issue Date |
| 5421591 | Sealing arrangement The invention concerns a sealing arrangement for use in steered axles of vehicles employed in agriculture and/or the building trade. The sealing arrangement (24) consists of separate seals (46, 47) which are assembled into a sealing set (48) by way of a s... | 06/06/1995 |
| 5419412 | Gear-shift control and gear-range selector for a semi-automatic or fully-automatic motion vehicle gearbox In a motor vehicle having a transmission (1) which can be optionally operated fully automatically or semi-automatically, and in which a gear-range selector (18) and a gear-shift control (21) are provided. The gear-range selector makes it possible to pre-s... | 05/30/1995 |
| 5417626 | Electronic-hydraulic control device for transmission systems of vehicles with automatic gear change In an electronic-hydraulic control mechanism of an automatically shifting motorcar transmission, control valves (88, 70, 65, 67, 91 and 94) are coordinated with actuation devices (81 to 87) of hydraulically engageable and disengageable friction clutches o... | 05/23/1995 |
| 5390347 | Range change transmission for vehicles In a range change transmission for vehicles which is designed as planetary transmission (2), a sun gear (3) is driven by a drive shaft (4) of an added basic transmission while a planet carrier (8) of the planetary transmission (2) is rigidly connected wit... | 02/14/1995 |
| 5383824 | Process for controlling the torque of an internal combustion engine In a process for controlling the torque of an internal combustion engine, an automatic gear system driven by the internal combustion engine includes a gear control device (1) and the internal combustion engine has a control device which, based on speed, l... | 01/24/1995 |
| 5383378 | Driven axle Proposed are free-wheel clutches (12) for a driven axle of an all-wheel-drive vehicle in which the degree to which the steered wheels (17, 18) are connected to the drive (4) depends on the steering angle. A snap-in catch in the clutches (12), as well as a... | 01/24/1995 |
| 5352100 | Pump drive for a motor vehicle automatic transmission In a pump drive for a motor vehicle automatic gearbox, a hollow shaft (6) secured in rotation to a primary part (3) of a torque converter (1) projects into the inside of a pump housing (7) and bears an impeller (10) of the pump. The hollow shaft (6) is bo... | 10/04/1994 |
| 5343779 | Arrangement and process for operating a fail safe braking system in a continuously variable driving unit of a motor vehicle An arrangement and process for operating a continuously variable drive unit of a motor vehicle having an apparatus for control of the operation of the clutches (25, 26) in the mechanical transmission branch (19). Sensors (7, 9, 45) transmit the speed of t... | 09/06/1994 |
| 5338010 | Hydropneumatic vehicle suspension The invention concerns a hydropneumatic vehicle suspension, especially for vehicles in which high axle-load differences occur. To adapt the hydropneumatic suspension to high axle-load differences, the hydropneumatic actuators (7, 8) are designed as double... | 08/16/1994 |
| 5336120 | Control system for operating a ship's motive installation The invention concerns a control system for operating a ship's motive installation (1, 2). Via a gearing (4) having adjustable clutches (67, 69) for forward and astern movement, an engine (3) drives a propeller shaft (7). Control and sensor devices (53, 5... | 08/09/1994 |
| 5335762 | Clutch with a synchronizing device In a clutch having a synchronizing device, post-synchronization is attained when the abutment of the locking teeth with the shift teeth changes by designing part of the locking teeth on the synchronizing ring wider than the remaining ones and engaging obl... | 08/09/1994 |
| 5306215 | Drive device with gearbox A drive device specially used in mobile excavators, wheeled loaders and similar work machines contains a power-shiftable transmission (4) designed as planetary transmission and driven by a hydraulic motor (3). The transmission (4) preferably has two speed... | 04/26/1994 |
| 5305862 | Control device for a frictionally engaging clutch for a hydrodynamic torque converter In a control mechanism for a frictionally engaged lock-up clutch of a hydrodynamic torque converter, a coupling element (8) is axially displaced for engaging and disengaging the lock-up clutch (7), face end actuation spaces (10, 11) being accordingly pres... | 04/26/1994 |
| 5301564 | Gear change box with multiple steps The gear-change transmission has a closely stepped input group (7) before a main group for fine tuning the speed within a working range. Between the input group (7) and the main group (8) is situated a pressurized-oil cooled drag-torque reducing multi-dis... | 04/12/1994 |
| 5283738 | Process and device for controlling a clutch A process for controlling a clutch incorporated between the driving engine (M) and the gearbox (G) of a motor vehicle, in which the clutch is a bridging clutch (WK) of a hydrodynamic unit or a separating clutch (K) in a driving train. The process uses dev... | 02/01/1994 |
| 5273499 | Claw coupling with large angle of deflection and small retaining and releasing force In a clutch (6) for locking a differential gear for a vehicle, a movable half (60) of the clutch (6) is pushed indirectly via a sliding sleeve (70) and intermediate members (77) in an engaging direction. Then the sliding sleeve (70), with a locking surfac... | 12/28/1993 |
| 5251443 | Pressure-control device In a pressure-control device for affecting the closing behavior of powershift clutches (K1 -KX) in a powershift transmission, a regulating valve (1) cooperates with a damping device (2) as pressure-control valve. Chokes (4, 40, 400) ... | 10/12/1993 |
| 5251878 | Drive for lifting equipment To improve the smoothness in running in a lifting equipment drive having an engine, one brake and one multi-stage planetary transmission, the input planetary gear set is helical cut and the second planetary gear set is straight cut. In addition, the input... | 10/12/1993 |
| 5239887 | Multi-stage speed-change gear The invention concerns a multi-step speed-change transmission. An intermediate transmission (9) is situated between an input group (7) and a main group (8). A double gear (28, 29) forms an additional overdrive. The speed-change transmission according to t... | 08/31/1993 |
| 5230610 | Axial piston pump An axial piston pump for supplying two separate oil circuits including two pistons units (6, 8) of which one is situated upon an external circle and the other upon an internal circle. The external piston unit (6) must be regulatable so that it can feed a ... | 07/27/1993 |
| 5228544 | Device for reducing the idling losses in hydrodynamic brakes In a hydrodynamic brake (1), in order to reduce the ventilation losses, adjustable baffles (2, 20) are situated between a rotor (3) and a stator (4). During idling, when oil has been evacuated from the brake (1), one or more baffles (2, 20) of angular cro... | 07/20/1993 |
| 5211406 | Sealing-modular construction The invention concerns a sealing arrangement in modular construction. In order to make the sealing arrangement (1) capable of fording, there is an internal sealing set (5) consisting of a radial shaft sealing ring (6) having two spring-loaded sealing lips... | 05/18/1993 |
| 5199538 | Drive device with variable torque-limiting system A drive device with variable torque-limiting system. When a setting mechanism (17) forming part of a crank mechanism (23) is actuated in order to displace a carrier waggon (19) to which a hydrofoil component (2) is fastened, large forces are induced. To a... | 04/06/1993 |
| 5197929 | Drive shaft The invention concerns a drive shaft (1) having gear heads (9) in each one of which is mounted a liquid-cooled disc brake (19) and a planetary gear (18). In order to improve the cooling of the disc brakes (19), collection and guide elements (32) are coord... | 03/30/1993 |
| 5190130 | Process for regulating a clutch In a process for regulating a clutch which is situated within a power train between an input shaft (22) and an output shaft (24), the rotation-rate differences Ɗω of the power train are detected via a sensor device. With the use of regulating equipment ... | 03/02/1993 |
| 5186070 | Gear-change device for the transmission of a motor vehicle In a gear-change device for the transmission of a motor vehicle to whose gear-change levers (23, 24 and 25) are fastened locking levers (29, 30 and 31) having locking grooves (32), when one of said gear-change levers (23, 24 or 25) pivots from its neutral... | 02/16/1993 |
| 5172611 | Engine-rpm-dependent arrest device to prevent non-permitted down shifts in motor vehicle gearboxes An engine-rpm-dependent arrest device to prevent non-permitted down shifts in motor vehicle transmissions containing a pilot valve (1) and a control valve (2), both having two shift positions. One shift position of the control valve (2) is engaged by the ... | 12/22/1992 |
| 5161636 | All-wheel drive tractor In an all-wheel driven field tractor whose front-axle differential (6) and rear-axle differential (15) are permanently driven in arable land by output shafts (2 and 3) of a gear change (1) so that a rigid connection exists between front and rear axles, th... | 11/10/1992 |
| 5159855 | Continuously variable driving unit of a motor vehicle The invention concerns a continuously variable driving unit motor vehicles having a controllable internal combustion engine and a hydrostatic-mechanical power split transmission with continuously variable reduction ratio, wherein the transmission is set t... | 11/03/1992 |
| 5152724 | Liquid-cooled multi-disc brake The invention concerns a liquid-cooled multi-disc brake (29) as used in transmission systems. The object of the invention is to improve the cooling of a multi-disc brake (29) exposed to high stresses owing to frequent use. In order to increase the through... | 10/06/1992 |
| 5151068 | Driving mechanism with two speed clutch A driving mechanism, specially for mobile excavators and similar construction machines, having a power-shiftable two-gear transmission (4) constructed as planetary gear and driven by a hydromotor, includes two speed levels alternatively engageable and dis... | 09/29/1992 |
| 5140866 | Gearshift device for a multiple-gear gear change box in a motor In a gearshift device of a multiple-gear transmission of a motor vehicle in which gear shift gates are selected by the rotation of a central selector shaft (2) and gear steps are engaged by the subsequent axial movement thereof. The selector shaft (2) is ... | 08/25/1992 |
| 5137285 | Sealing system for mutually rotating machine parts The sealing system consists of a commercially-available shaft seal (2), having a covering ring (3) to protect the shaft seal dirt and from exposure to the atmosphere. The covering ring (3) pre-arranged separately outside the conventional flexible shaft se... | 08/11/1992 |
| 5125428 | Device for equalizing pressure between machine housing and the surroundings The pressure compensator (2) is provided with gas-pervious but water and lubricating oil retaining diaphragms (10) which are supported on supporting grids (13) of less elastic material and elastomer rings (12). The diaphragms (10) permit the utilization o... | 06/30/1992 |
| 5119594 | Grinding machine for continuous roll grinding of gears A grinding machine for continuous roll grinding of gears having a workpiece (6) clamped on a bench (1) and a grinding worm (8), the rotary drives of which are connected by a play-free mechanical hypoid transmission. The grinding worm (8) is continuously d... | 06/09/1992 |
| 5115898 | Disk set with spreading devices for clutches or brakes The spreading apart and keeping apart of the individual disks in friction disk sets or clutches and/or brakes makes it possible to avoid drag torques and the losses of energy caused thereby. Spreading elements, in the form of magnetic bodies (8), which ar... | 05/26/1992 |
| 5103930 | Apparatus for electrohydraulic actuation of a clutch assembly for locking the differential transmission of a motor vehicle A device for electrohydraulic actuation of a clutch of a differential transmission (31) situated between an automatic transmission (3) and the drive wheels of the vehicle comprises an actuating piston (23) actuated by pressurized fluid supplied via a main... | 04/14/1992 |
| 5099720 | Control mechanism for an automatic gear-shifting transmission using turn signal control unit A control mechanism for an automatic transmission (1) of a motor vehicle including one electronic control unit (2) for determining the shift points for the change of gear. The latter results at least from the information from the vehicle speed (3) and the... | 03/31/1992 |
| 5092736 | Pump arrangement in a transmission A pump arrangement for a transmission in which an integrated pump rotates with a common drive shaft (6) having a free end, supported via a shaft bearing (8), carrying a connection part (12) for accommodating a power take off shaft (14), the connection par... | 03/03/1992 |
| 5079965 | Gearbox The invention concerns a gearbox (9). On the gearbox is front-mounted a hydrodynamic torque converter (3). The gearbox (9) has hydraulically actuatable gear clutches (17, 18, 23 and 28) which are designed structurally alike. The gears (14, 15, 16, 19, 20,... | 01/14/1992 |
