Abstract: A solid propellant compact (10) in the form of a compact made of a powdered and/or granulated solid propellant, especially for inflators and/or actuators of a vehicle occupant restraint system, includes at least one recess on at least one of its sides. Solid propellant compacts (10) of this type are provided in an inflator (14) comprising at least one combustion chamber. A module includes such inflator (14) with an airbag inflatable by the inflator (14). A pyrotechnical drive unit (30) comprising a housing (32), a piston (34) movable in the housing (32) includes solid propellant compacts (10) of this type.

Abstract: A hydrostatic drive system for a vehicle (10) comprises an open circuit (100), a closed travel circuit (120), an electronic controller (320), and a main variable displacement hydraulic pump (102) driven by an internal combustion engine (12) equipped with a speed sensor (350). The main variable displacement hydraulic pump may be configured to supply hydraulic fluid to a hydraulic consumer (34, 44, 50) via a hydraulic supply line (106). A pressure relief valve (118) may be connected to a reservoir (300) and may be permanently connected to the hydraulic supply line of the open circuit. The electronic controller may be configured to run a strong braking mode in which the electronic controller at least partially increases the displacement of the main variable displacement hydraulic pump such that hydraulic fluid is discharged via the permanently connected pressure relief valve into the reservoir if the sensed engine speed is higher than a predetermined maximum engine speed.

Abstract: A hydrostatic system is configured to be integrated in a vehicle, e.g. an excavator. The hydrostatic system may comprise a first closed hydraulic circuit including a first hydraulic pump and a first hydraulic motor configured to operate a first component of the vehicle, and a second closed hydraulic circuit including a second hydraulic pump and a second hydraulic motor rated to operate a second component of the vehicle. Furthermore, a single six-port two-position directional valve may be provided. The single six-port two-position directional valve may be configured to switch between a first position and a second position such that in the first position the first hydraulic motor is driven by the first hydraulic pump and the second hydraulic motor is driven by the second hydraulic pump, and in the second position the first hydraulic motor is disconnected from the first hydraulic pump and the second hydraulic motor is driven by both the first and second hydraulic pumps.

Abstract: A hydrostatic drive system for a vehicle (10) comprises an open circuit (100), a closed travel circuit (120), an electronic controller (320), and a main variable displacement hydraulic pump (102) driven by an internal combustion engine (12) equipped with a speed sensor (350). The main variable displacement hydraulic pump may be configured to supply hydraulic fluid to a hydraulic consumer (34, 44, 50) via a hydraulic supply line (106). A pressure relief valve (118) may be connected to a reservoir (300) and may be permanently connected to the hydraulic supply line of the open circuit. The electronic controller may be configured to run a strong braking mode in which the electronic controller at least partially increases the displacement of the main variable displacement hydraulic pump such that hydraulic fluid is discharged via the permanently connected pressure relief valve into the reservoir if the sensed engine speed is higher than a predetermined maximum engine speed.

Abstract: The present disclosure refers to a hydrostatic drive system for a vehicle (10), which may comprises an open circuit a closed circuit (120), and a combiner valve (118). The open circuit (100) may include a main hydraulic pump (102) configured to be driven by an internal combustion engine (12), and configured to drive at least one hydraulic consumer (34, 44, 50). The closed circuit (120) may include an auxiliary hydraulic pump (170) configured to travel the vehicle (10), and an hydraulic motor (146) connected to the auxiliary hydraulic pump (170). A pressure-relief valve (164) is sized and configured to drain the hydraulic fluid circulating within the closed circuit (120) and exceeding the maximum capacity of the auxiliary pump (170) to a reservoir (300) even if hydraulic fluid is diverted from the open circuit (100) into the closed circuit (120). The combiner valve (118) is connected to both the open circuit (100) and the closed circuit (120).

Abstract: A hydrostatic system is configured to be integrated in a vehicle, e.g. an excavator. The hydrostatic system may comprise a first closed hydraulic circuit including a first hydraulic pump and a first hydraulic motor configured to operate a first component of the vehicle, and a second closed hydraulic circuit including a second hydraulic pump and a second hydraulic motor rated to operate a second component of the vehicle. Furthermore, a single six-port two-position directional valve may be provided. The single six-port two-position directional valve may be configured to switch between a first position and a second position such that in the first position the first hydraulic motor is driven by the first hydraulic pump and the second hydraulic motor is driven by the second hydraulic pump, and in the second position the first hydraulic motor is disconnected from the first hydraulic pump and the second hydraulic motor is driven by both the first and second hydraulic pumps.

Abstract: A solid propellant compact (10) in the form of a compact made of a powdered and/or granulated solid propellant, especially for inflators and/or actuators of a vehicle occupant restraint system, includes at least one recess on at least one of its sides. Solid propellant compacts (10) of this type are provided in an inflator (14) comprising at least one combustion chamber. A module includes such inflator (14) with an airbag inflatable by the inflator (14). A pyrotechnical drive unit (30) comprising a housing (32), a piston (34) movable in the housing (32) includes solid propellant compacts (10) of this type.

Abstract: A hydrostatic transmission that is operated in an open loop by way of an adjustable hydraulic motor (5), which is adjusted for the purpose of acceleration or deceleration with the aid of an electronic control unit (8) such that a desired vehicle speed corresponds to a measured vehicle speed.

Abstract: A steering system is provided for a work machine. The steering system may include at least one hand-operated work implement control device and a steering mechanism configured to control a direction of travel of the work machine. The system may also include a first steering device operatively coupled to the steering mechanism and configured to control at least one component of the steering mechanism based on operator input. The system may further include a second steering device mounted on the work implement control device. The second steering device may be configured to be selectively operatively coupled to the steering mechanism to thereby control a direction of travel of the work machine based on lateral movement of the second steering device relative to the work implement control device.

Abstract: A hybrid gas generator for use in an occupant restraint system for vehicles comprises a pressure chamber (10), a combustion chamber (14) delimited by a combustion chamber wall (16) and containing a pyrotechnic charge (12), and a passage element (20) arranged between the pyrotechnic charge and the pressure chamber. For a form-fitting securing of the passage element (20) on the combustion chamber wall (16), the passage element (20) and the combustion chamber wall (16) have at least in part a conical shape. On the side facing the pyrotechnic charge (12), the passage element (20) has a collar (38) which acts as a spacer between the passage element (20) and the pyrotechnic charge (12).

Abstract: A hydrostatic transmission that is operated in an open loop by way of an adjustable hydraulic motor (5), which is adjusted for the purpose of acceleration or deceleration with the aid of an electronic control unit (8) such that a desired vehicle speed corresponds to a measured vehicle speed.

Abstract: A steering system is provided for a work machine. The steering system may include at least one hand-operated work implement control device and a steering mechanism configured to control a direction of travel of the work machine. The system may also include a first steering device operatively coupled to the steering mechanism and configured to control at least one component of the steering mechanism based on operator input. The system may further include a second steering device mounted on the work implement control device. The second steering device may be configured to be selectively operatively coupled to the steering mechanism to thereby control a direction of travel of the work machine based on lateral movement of the second steering device relative to the work implement control device.

Abstract: A hybrid gas generator for use in an occupant restraint system for vehicles comprises a pressure chamber (10), a combustion chamber (14) delimited by a combustion chamber wall (16) and containing a pyrotechnic charge (12), and a passage element (20) arranged between the pyrotechnic charge and the pressure chamber. For a form-fitting securing of the passage element (20) on the combustion chamber wall (16), the passage element (20) and the combustion chamber wall (16) have at least in part a conical shape. On the side facing the pyrotechnic charge (12), the passage element (20) has a collar (38) which acts as a spacer between the passage element (20) and the pyrotechnic charge (12).

Abstract: A hydraulic system for a utility vehicle supplies primary and auxiliary hydraulic actuators with hydraulic fluid and includes a pump, the pressure of which is controlled with respect to the load pressure of the primary and auxiliary hydraulic actuators. The pressure of the hydraulic fluid from the pump exceeds the load pressure by a predetermined control pressure differential. Valves arc provided for producing two control pressure differentials of different values. When the prevailing load pressure of the auxiliary hydraulic actuator and a highest load pressure of the primary hydraulic actuator is less than the sum of the load pressure of the auxiliary hydraulic actuator and the control pressure differential of the auxiliary hydraulic actuator minus the control pressure differential of the primary hydraulic actuator, the control pressure differential is increased with respect to die control pressure differential in cases where the load pressure of the auxiliary hydraulic actuator does not prevail.