摘要:
An activation device for a protection device includes: a body with a chamber that has, respectively at first and second ends, a medium inlet opening to a medium storage and a valve opening, and an outlet opening for discharging the medium into the protection device between the first and second ends; a valve for opening and closing the valve opening for passage of the medium; and a piston that (a) includes a passage along a main extension axis, from a first surface thereof adjacent to the medium inlet opening, to a second surface thereof, larger than the first surface and adjacent to the valve opening, and (b) is movable in the chamber by the medium and as a function of the control valve position between a position in which the at least one outlet opening is closed and a position in which the at least one outlet opening is opened.
摘要:
A device for activating a passenger protection unit for a vehicle. The device includes a fuel element chamber having at least one fuel element, which is designed to generate a hot gas for activating the passenger protection unit by combustion, the fuel element chamber having an outlet opening for releasing the hot gas into the passenger protection unit, and the pressure container being designed to store a pressurized cold gas, the pressure container having at least one opening for the controlled release of the cold gas into the fuel element chamber.
摘要:
The invention relates to a method for liquid-jet cutting, comprising a compressor unit (3), which compresses a liquid for producing a liquid jet, and a nozzle (10), which is connected to the compressor unit (3) and which has an outlet opening (11), through which the compressed liquid exits in the form of a liquid jet (14). The one flow of the compressed liquid to the outlet opening (11) can be interrupted or enabled by means of an interrupting unit (8). The following steps are performed: compressing the liquid by means of the compressor unit (3), moving the outlet opening (11) toward a workpiece (15) to be processed until a processing distance (d) is reached, alternately enabling and interrupting the liquid jet (14) by means of the interrupting unit (8), wherein at the same time the nozzle is moved in relation to the workpiece in a processing direction (22) and the pulse duration (tp; tp1; tp2) of the liquid jet is less than 1000 μs.
摘要:
A device for activating a passenger protection unit for a vehicle. The device includes a fuel element chamber having at least one fuel element, which is designed to generate a hot gas for activating the passenger protection unit by combustion, the fuel element chamber having an outlet opening for releasing the hot gas into the passenger protection unit, and the pressure container being designed to store a pressurized cold gas, the pressure container having at least one opening for the controlled release of the cold gas into the fuel element chamber.
摘要:
The invention relates to a liquid jet cutting method using a compressor unit (3) that comprises a liquid for generating a liquid jet and using a nozzle (10) that is connected to the compressor unit (3) and has an outlet opening (11) through which the compressed liquid exits in the form of a liquid jet (14). The flow of the compressed liquid to the outlet opening (11) can be interrupted or released by means of an interruption unit (8). The method has the following steps: compressing the liquid by means of the compressor unit (3), moving the outlet opening (11) closer to a workpiece (15) to be machined up to a machining distance (d), and alternatively releasing and interrupting the liquid jet (14) by means of the interruption unit (8), wherein the nozzle is simultaneously moved relative to the workpiece in a machining direction (22), and the machining angle between the workpiece surface (115) and the liquid jet (14) is less than 90°.
摘要:
The invention relates to a device for the erosive processing and/or the cleaning of a material or of a material surface by means of at least one high-pressure fluid jet, comprising a nozzle (1) for outputting a high-pressure fluid jet and an apparatus (2) arranged upstream of the nozzle (1) for producing a pulsed high-pressure fluid jet, wherein the apparatus (2) comprises at least one valve (3). According to the invention, the valve (3) is designed as a servo valve and has an axially movable valve piston (4) for connecting a valve feed (5) to a valve outlet (6) such that the flow through the valve (3) can be specified by means of the axial position of the valve piston (4). The invention further relates to a method for operating a device according to the invention.
摘要:
A valve for a cold gas generator for an airbag in a vehicle includes: a valve chamber; a control chamber; a control piston; an overflow channel; a retaining element; and a shutoff element. The valve chamber includes an inlet from the cold gas generator and an outlet to the airbag. The control piston separates the control chamber and the valve chamber. The control piston is movable between an open position and a closed position, the control piston releasing the outlet in the open position and closing it in the closed position. The control piston has (i) a first active piston surface on the side of the valve chamber, and (ii) a second active piston surface on the side of the control chamber. The first piston surface is smaller than the second piston surface. The overflow channel fluidically connects the valve chamber and the control chamber to one another.
摘要:
A valve for a cold gas generator for an airbag in a vehicle includes: a valve chamber; a control chamber; a control piston; an overflow channel; a retaining element; and a shutoff element. The valve chamber includes an inlet from the cold gas generator and an outlet to the airbag. The control piston separates the control chamber and the valve chamber. The control piston is movable between an open position and a closed position, the control piston releasing the outlet in the open position and closing it in the closed position. The control piston has (i) a first active piston surface on the side of the valve chamber, and (ii) a second active piston surface on the side of the control chamber. The first piston surface is smaller than the second piston surface. The overflow channel fluidically connects the valve chamber and the control chamber to one another.
摘要:
A method for digesting biological cells in a reaction container includes treating the cells with pressure pulses. The pressure pulses are generated by at least one eddy current actuator in conjunction with an electric conductor arranged on or in the reaction container.