Abstract: A shoe contains an adjustable space for the foot and several fluidically connected chambers. In order to adjust the space for the foot, the flowability of a magnetorheological fluid can be influenced by one or more devices that generate a magnetic field and thereby adjust the space for the foot resulting in a better fitting of the shoe. The novel system may also be implemented in orthoses (e.g., pronation correction) or in complete shoes with orthotics devices for correcting musculoskeletal abnormalities.

Abstract: A movement damping apparatus has magnetorheological fluid that is pressed through a flow path forming a bottleneck in order to dampen a movement. The flow path is divided into at least two flow tracks by a partition that forms an additional friction surface.

Abstract: A movement damping apparatus has a flow path through which a magnetorheological fluid is pressed. A device that generates a variable magnetic field has a core around which a coil is wound as well as pole surfaces in the flow path. The magnetic field acts on the magnetorheological fluid by way of the pole surfaces. The coil is arranged within the flow path along with the core, the axis of the coil extending perpendicular to the direction of flow of the magnetorheological fluid. The flow path has a jacket made of a magnetically conducting material.

Abstract: An energy absorbing element contains a free-flowing medium. The medium is expressed from the element, upon the occurrence of an impact, through at least one opening. The medium is enclosed in a capsule that bursts on impact.

Abstract: Closed-loop control of an energy absorber acting as a damper between two parts that are movable relative to one another. A damping force of the energy absorber, or damper, can be adjusted by way of the change in the viscosity of a magnetorheological fluid (MRF), which change can be influenced by a magnetic field of a coil. According to the method it is possible to decelerate an impact or a movement with the lowest possible forces in order to minimize possible consequential damage/loading by way of setting as constant a deceleration as possible, as small a deceleration as possible, by way of using the entire available deceleration travel, and low or zero residual speed at the end of the deceleration travel independently of the moving mass or speed.

Abstract: A valve for a magnetorheological fluid is formed with a duct through which the magnetorheological fluid can flow and which can be exposed to a variable magnetic field such that the flow resistance of the duct can be set using the magnetic field in the duct. The magnetic field can be lastingly generated using a magnet device that is made at least in part of magnetically hard material. The magnetization of the magnet device can be lastingly modified by a magnetic pulse of a magnetic field generation device in order to lastingly change the magnetic field in the duct and thus the flow resistance of the duct. A valve of the invention requires energy only to change settings while a specific setting can be lastingly maintained without supplying energy.

Abstract: A valve for magnetorheological fluids is formed with a control duct in which the magnetic field of a magnetic device, consisting of a permanent magnet and coil, acts on the fluid. The viscosity of the fluid is directly proportional to the magnetic field strength, with the result that the flow resistance of the valve can be varied via the coil current. The respective control duct is arranged in the end-face region of the coil and runs radially with respect to the center line of the valve, with the result that high flux densities can be achieved in the control duct. A permanent magnet is arranged in the inner space of the coil and, even under currentless operating conditions, can close the valve up to a certain blocking pressure.

Abstract: An energy absorbing device, in particular a device for single-use occupant protection in vehicles, has a container with a magneto-rheological medium which is forced on impact through a restriction with at least one outlet channel. The flow resistance of the outlet channel may be influenced by a device for generation of a magnetic field.

Abstract: A valve device is formed with a through-channel and a field generating device. A fluid which can be influenced by a field is provided in the through-channel and the field generating device is configured to act on the field-influenced fluid in the through-channel by way of a field. At least one adjustment device is provided with which the field that is active in the through-channel can be adjusted. A portion of the cross-sectional area of the through-channel can be adjusted, the portion being exposed to a field of a specific intensity so that the through-channel can also only partly be exposed to a field of a specific intensity. Thus, the through-channel, as seen in the direction of the flow, can be divided into regions of different flow resistance, whereby characteristic curves, which were previously attained only with difficulty, are easily obtained when using the valve device in a damper, for example.

Abstract: A movement damping apparatus has a flow path through which a magneto-rheological fluid is pressed. A device that generates a variable magnetic field has a core around which a coil is wound as well as pole surfaces in the flow path. The magnetic field acts on the magnetorheological fluid by way of the pole surfaces. The coil is arranged within the flow path along with the core, the axis of the coil extending perpendicular to the direction of flow of the magnetorheological fluid. The flow path has a jacket made of a magnetically conducting material.

Abstract: A movement damping apparatus has magnetorheological fluid that is pressed through a flow path forming a bottleneck in order to dampen a movement. The flow path is divided into at least two flow tracks by a partition that forms an additional friction surface.

Abstract: A shoe contains an adjustable space for the foot and several fluidically connected chambers. In order to adjust the space for the foot, the flowability of a magnetorheological fluid can be influenced by one or more devices that generate a magnetic field and thereby adjust the space for the foot resulting in a better fitting of the shoe. The novel system may also be implemented in orthoses (e.g., pronation correction) or in complete shoes with orthotics devices for correcting musculoskeletal abnormalities.

Abstract: A valve for magnetorheological fluids is formed with a control duct in which the magnetic field of a magnetic device, consisting of a permanent magnet and coil, acts on the fluid. The viscosity of the fluid is directly proportional to the magnetic field strength, with the result that the flow resistance of the valve can be varied via the coil current. The respective control duct is arranged in the end-face region of the coil and runs radially with respect to the center line of the valve, with the result that high flux densities can be achieved in the control duct. A permanent magnet is arranged in the inner space of the coil and, even under currentless operating conditions, can close the valve up to a certain blocking pressure.

Abstract: An energy absorbing device, particularly for single-use occupant protection in vehicles on the action of an external force, has a free-flowing medium which is forced through a constriction by a mobile pressure element on the action of an external force. A pull device or tension device pulls on the pressure element on the action of the external force.

Abstract: A device for generating electrical energy has at least one pair of permanent magnets and at least one coil. They are moved about a pivot axis relative to one another by agitating or shaking. Each coil is disposed between the pole surfaces of the at least one pair of permanent magnets which are disposed opposite each other.

Abstract: An energy absorbing device, in particular a device for single-use occupant protection in vehicles, has a container with a magneto-rheological medium which is forced on impact through a restriction with at least one outlet channel. The flow resistance of the outlet channel may be influenced by a device for generation of a magnetic field.

Abstract: An energy absorbing element contains a free-flowing medium. The medium is expressed from the element, upon the occurrence of an impact, through at least one opening. The medium is enclosed in a capsule that bursts on impact.

Abstract: An energy absorbing device, particularly for single-use occupant protection in vehicles on the action of an external force, has a free-flowing medium which is forced through a constriction by a mobile pressure element on the action of an external force. A pull device or tension device pulls on the pressure element on the action of the external force.

Abstract: The invention relates to a steering column provided with an impact energy absorbing element, comprising a collapsible container (1) containing a flowing medium. The medium is pressed through an opening (2) on an impact, the resistance of which can be controlled by a device (10).

Abstract: A shoe contains an adjustable space for the foot and several fluidically connected chambers. In order to adjust the space for the foot, the flowability of a magnetorheological liquid can be influenced by at least one device generating a magnetic field thereby adjusting the space for the foot resulting in a better fitting of the shoe.