Class / Patent application number | Description | Number of patent applications / Date published |
180442000 | Hydraulic circuit | 13 |
20080202842 | Hydraulic traction system for vehicles - A hydraulic traction system for vehicles is described. The system comprises a hydraulic vane motor mounted at each wheel of the vehicle, and equal number of identical hydraulic vane motors operated as engine driven pumps, and a control system for regulating the flow and direction of hydraulic oil during operation. The hydraulic motor is of a novel design that has a hollow non-drive shaft that accepts incoming hydraulic oil, this allows internal components of the hydraulic motor to be arranged in such a way to improve the efficiency of the hydraulic traction system. | 08-28-2008 |
20080236932 | ACTUATOR CONTROL SYSTEM - The invention provides a method and a system for moving an element, e.g. a rudder of a ship or a wheel of a vehicle. The element is moved by a hydraulic fluid. According to the invention, an operator indicates a desired movement, and in accordance with the desired movement, at fluid is provided from at least three fluid providers each providing a share of the fluid in parallel streams and only considering the desired movement not the shares provided by the other fluid providers. The invention allows continuation of a steering task even if one fluid provider is disabled, and the invention allows the continuation even without having to notice that one provider is disabled. Accordingly, the invention provides an improvement and simplification relative to the known hydraulic steering systems. | 10-02-2008 |
20090000856 | PROCESS OF ENDFORMING A TUBULAR ASSEMBLY - A method for endforming a tubular member for use assembly for a hydraulic system comprises (1) a connector member having an inner surface exhibiting a stepped configuration and a fixing member at the distal end thereof, and (2) an endform tubular member having an outer surface corresponding to the inner surface of the connector member, wherein the endform tubular member mates with inner surface of the connector member to provide an endform tubular assembly having an improved design for conveying fluids in a hydraulic system. The endform tubular assembly has inherent features therein that are measured to provide quantified values for assessing the robustness of the assembly and predict the performance of such assembly in high pressure applications for prolonged periods of time. | 01-01-2009 |
20090272598 | Isolation Valve for a Load-Reaction Steering System - A steering system includes a fluid actuator, a first steering circuit in selective fluid communication with the fluid actuator, and a second steering circuit in selective fluid communication with the fluid actuator and disposed in parallel to the first steering circuit. The second steering circuit includes a load-reaction feature and an isolation valve with the isolation valve being adapted to enable and disable the load-reaction feature. | 11-05-2009 |
20090288906 | HYDRAULIC POWER STEERING SYSTEM - A hydraulic auxiliary power steering for motor vehicles having a source for a hydraulic medium, in particular an oil pump, which can be driven during operation by a drive device, in particular by an internal combustion engine of the vehicle or by an electric motor, having a steering transmission and having a line system for the hydraulic medium connecting the source to the steering transmission, wherein the line system has at least two line sections through which the hydraulic medium can flow. | 11-26-2009 |
20100051376 | Bending Construction Vehicle - [Problem] To provide an articulated vehicle which permits steering control not only suited for traveling on general roadways but also suited for work at construction sites. | 03-04-2010 |
20100089687 | HYDRAULIC STEERING ARRANGEMENT - The invention concerns a hydraulic steering arrangement ( | 04-15-2010 |
20100101888 | Steering Device For Construction Vehicle - [Problem] To provide a steering system for a construction vehicle, which is suited not only for traveling on general roadways but also for work at construction sites and can perform high-reliability steering control. | 04-29-2010 |
20100175948 | HYDRAULIC ACTUATING CIRCUIT FOR POWER-ASSISTED STEERING, AND MOTOR VEHICLE EQUIPPED THEREWITH - A power-steering hydraulic actuating circuit for a motor vehicle, including a hydraulic fluid distributing valve including hydraulic fluid supply ports connected to a pump via lines. A mechanism restricts the cross section of hydraulic fluid flow from the pump to the port and is provided on the high-pressure line. | 07-15-2010 |
20120043154 | HYDRAULIC SYSTEM - A hydraulic system for a mobile working machine includes a hydraulic pump, a steering valve, a steering actuator controlled by the steering valve, a first hydraulic line which extends between the hydraulic pump and the steering valve, and a hydraulic storage unit which is connected with the first hydraulic line via a second hydraulic line). So as to optimize a pressure state for the hydraulic system, a throttle connected in parallel with a check valve is located in the second hydraulic line. The check valve permits one-way fluid flow in a direction away from the hydraulic storage unit. | 02-23-2012 |
20120061165 | RESERVOIR-LESS POWER STEERING SYSTEM - A reservoir-less power steering system having a hydraulic pump, a storage tube, a steering gear assembly, and a return line. The storage tube accommodates and provides hydraulic fluid to the hydraulic pump. Further, the hydraulic pump increases the hydraulic fluid pressure and transfers the pressurized hydraulic fluid to the steering gear assembly. A return line is connected to the steering gear assembly and coupled to the storage tube for returning the hydraulic fluid from the steering gear assembly to the hydraulic pump. Moreover, the storage tube extends upwards from the hydraulic pump to include a hydraulic fluid level measurement assembly. | 03-15-2012 |
20120152645 | WATER DRAIN VALVE COMPRISING AN UMBRELLA DIAPHRAGM - A water drain valve for an electromechanical motor vehicle power steering may include a base and a diaphragm which is configured as a movable valve element and is arranged such that it can move relative to the base between a closed position and an open position. In the closed position, the diaphragm rests against the base along an annular ring. The base may have a passage which extends from a free opening to a floor, with the diaphragm being attached centrally to the floor, the floor having at least one opening which forms a connection from the passage to the diaphragm, and the floor having at least one groove which is open towards the diaphragm and extends from the at least one opening as far as the annular ring. | 06-21-2012 |
20140291061 | STEERING SYSTEM FOR UTILITY VEHICLES WITH BILATERAL ACTUATION - An auxiliary element is incorporated into a steering apparatus and that, in addition to the steering circuit, a further steering circuit is provided on the same axle. A movement is forced upon the auxiliary element by a further kinematic coupling, such that the movement is additionally transmitted to the opposite wheel by the auxiliary element. The transmission increases boost to the steering force. | 10-02-2014 |