Abstract: The invention relates to a shut-off valve (100) for controlling a pressurized gas flow from a pressurized gas vessel (109) into a chamber (111) in a system, the shut-off valve (100) comprising a main valve (101), a pilot valve (103), a coil (105) and a tension spring (107); when the coil is energized, it moves the pilot valve from a first pilot valve position into a second pilot valve position; in the first pilot valve position, the pilot valve gas-tightly seals a control channel (115) in the main valve between a control chamber (117) of the shut-off valve and the chamber (109) in the system, and in the second pilot valve position, the pilot valve opens the control channel; the tension spring mechanically couples the pilot valve to the main valve in order to move the main valve from a first main valve position into a second main valve position when the pilot valve moves into the second pilot valve position; in the first main valve position, the main valve gas-tightly seals a main channel (123) that connects t

Abstract: A shutoff valve for hydrogen tank systems having at least one compressed gas container. The shutoff valve includes a main valve, and a control valve for controlling the main valve. The main valve has a reciprocating valve piston which interacts with a valve seat and delimits, at its end facing away from the valve seat, a control chamber which is connected to a storage volume of the compressed gas container via an inlet throttle and via an outlet throttle, connectable to a gas outlet depending on the switch position of the control valve. The main valve includes a solenoid using which an opening and/or holding force acting on the valve piston can be generated. A compressed gas container having the shutoff valve, and a hydrogen tank system comprising at least one compressed gas container and the shutoff valve, are also described.

Abstract: The invention relates to a shut-off valve (1) for hydrogen tank systems. comprising a main valve (2) having a main valve piston (3) which can be liftably moved, delimits a control chamber (6) at one end, interacts with a main valve seat (4) at the other end and is acted upon by the spring force of a spring (5) in the direction of the main valve seat (4); a control valve (7) for controlling the lifting movements of the main valve piston (3), wherein the control valve (7) has a control valve plunger (8) which is arranged at an axial distance coaxially from the main valve piston (3) and is acted upon by the spring force of the spring (5) or a further spring (9) in the direction of a control valve seat (10); and an annular solenoid coil (11) for actuating the control valve (7) and for acting on an end portion (12) of the main valve piston (3) designed as a solenoid plunger. The invention also relates to a hydrogen tank system comprising a shut-off valve (1) according to the invention.

Abstract: The invention relates to a check valve (1) having a solenoid assembly (2), which comprises a solenoid actuator (12) having a solenoid (6) and an armature (7), which is pre-tensioned by a spring element (9) with a pre-tensioning force acting in a closing direction, wherein the armature (7) is movable along an axis of movement (10) in an opening direction to open the check valve (1) via a magnetic flux acting against the pre-tensioning force of the spring element (9), to open a fluidic connection between a fluid inlet (4) and a fluid outlet (5), which is blocked without the magnetic force, by a magnetic force pulling on the armature (7). In order to functionally improve the check valve (1), the solenoid assembly (2) is designed in such a way that a selectively asymmetric magnetic force distribution results with respect to the axis of movement (10) of the armature (7).

Abstract: The invention relates to a solenoid valve (1), in particular a shut-off valve for hydrogen tank systems, comprising a reciprocatingly movable magnetic armature (2) which is or can be coupled to a reciprocatingly movable valve element (3), the magnetic armature (2) being preloaded in the direction of the valve element (3) by means of a spring (4), the solenoid valve further comprising an annular solenoid coil (5) for acting on the magnetic armature (2), the solenoid coil (5) surrounding the magnetic armature (2) in portions. According to the invention, the magnetic armature (2) has a portion (2.1) designed as a plunger armature and a portion (2.2) designed as a flat armature, the portion (2.1) designed as a plunger armature delimiting a pressure chamber (6) within the solenoid coil (5), which pressure chamber is connected pneumatically, preferably via a choke (7), to a control chamber (8) which can be relieved by opening a control valve (9) which can also be actuated by means of the solenoid coil (5).

Abstract: The invention relates to a shut-off valve (1) for hydrogen tank systems, comprising— a main valve (2) having a reciprocally movable valve member (3) which is formed of one or more pieces and interacts at one end with a valve seat (4) and delimits at the other end a control chamber (5), a control valve (6) having a reciprocally movable control valve piston (7) for opening and closing a housing-side control valve seat (8) via which the control chamber (5) can be connected to at least one pressure-regulating region (9, 10), and a solenoid (11) for acting on a first armature (12), which is connected to the control valve piston (7) or forms the control valve piston (7), and a second armature (22), which is connected to the valve member (3) of the main valve (2). The invention also relates to a hydrogen tank system comprising a shut-off valve (1) according to the invention.

Abstract: The invention relates to a shut-off valve comprising: a housing which has an inlet opening, an outlet opening and a control opening, wherein the housing defines an inner space extending along a longitudinal axis and has a partition which divides the inner space into an outlet chamber and a control chamber and has a guide hole which extends between the outlet chamber and the control chamber; an electrical coil which is accommodated in the partition and surrounds the guide hole; a servo valve needle which is arranged in the control chamber, is preloaded along the longitudinal axis into a closed position in which it seals the control opening, and can be moved, by means of a magnetic field which can be generated by the coil, into an open position in which it exposes the control opening and abuts the partition, wherein the servo valve needle has a connecting channel which connects the control chamber to the guide hole in the open position of the servo valve needle; and a main valve needle which is movably guided i

Abstract: The invention presented relates to a shut-off valve (100) for closing a tank (201).

Abstract: The invention relates to a shut-off valve (100) for controlling a pressurized gas flow from a pressurized gas vessel (109) into a chamber (111) in a system, the shut-off valve (100) comprising a main valve (101), a pilot valve (103), a coil (105) and a tension spring (107); when the coil is energized, it moves the pilot valve from a first pilot valve position into a second pilot valve position; in the first pilot valve position, the pilot valve gas-tightly seals a control channel (115) in the main valve between a control chamber (117) of the shut-off valve and the chamber (109) in the system, and in the second pilot valve position, the pilot valve opens the control channel; the tension spring mechanically couples the pilot valve to the main valve in order to move the main valve from a first main valve position into a second main valve position when the pilot valve moves into the second pilot valve position; in the first main valve position, the main valve gas-tightly seals a main channel (123) that connects t

Abstract: The invention relates to a shut-off valve (1) for hydrogen tank systems, comprising a housing (2) in which an annular solenoid (3) is accommodated for acting on a magnetic armature (4) of a control valve (5) in the form of a flat armature and a magnetic armature (6) of a main valve (7) in the form of a plunger-type armature, wherein the two magnetic armatures (4, 6) are arranged coaxially and together they border a control chamber (8) formed within the solenoid (3), which is pneumatically connected to a control valve chamber (9) on one side and to a main valve chamber (10) on the other side, and wherein at least one spring (11, 12) is accommodated in the control chamber (8) for restoring the two magnetic armatures (4, 6). The invention also relates to a hydrogen tank system comprising a shut-off valve (1) according to the invention.

Abstract: The invention relates to a shut-off valve (1) for hydrogen tank systems. comprising a main valve (2) having a main valve piston (3) which can be liftably moved, delimits a control chamber (6) at one end, interacts with a main valve seat (4) at the other end and is acted upon by the spring force of a spring (5) in the direction of the main valve seat (4); a control valve (7) for controlling the lifting movements of the main valve piston (3), wherein the control valve (7) has a control valve plunger (8) which is arranged at an axial distance coaxially from the main valve piston (3) and is acted upon by the spring force of the spring (5) or a further spring (9) in the direction of a control valve seat (10); and an annular solenoid coil (11) for actuating the control valve (7) and for acting on an end portion (12) of the main valve piston (3) designed as a solenoid plunger. The invention also relates to a hydrogen tank system comprising a shut-off valve (1) according to the invention.

Abstract: The invention relates to a blocking device comprising a first connection for connecting to a high-pressure tank; a second connection for connecting to a supply line; a main valve chamber which comprises a first opening connected to the first connection in a fluidically conducting manner, a second opening connected to the second connection in a fluidically conducting manner, and a first control opening; a main valve, said main valve being designed as a switchable solenoid valve and comprising a main valve needle that is arranged in the main valve chamber and can be moved between a closed position, in which the main valve needle rests against a main valve seat surrounding the second opening, and an open position, in which the main valve needle is lifted from the main valve seat, wherein the main valve needle divides the main valve chamber into an outlet chamber, into which the first and second opening lead, and a control chamber, into which the first control opening leads and which is connected to the outlet ch

Abstract: The invention relates to a solenoid valve (1), in particular a shut-off valve for hydrogen tank systems, comprising a reciprocatingly movable magnetic armature (2) which is or can be coupled to a reciprocatingly movable valve element (3), the magnetic armature (2) being preloaded in the direction of the valve element (3) by means of a spring (4), the solenoid valve further comprising an annular solenoid coil (5) for acting on the magnetic armature (2), the solenoid coil (5) surrounding the magnetic armature (2) in portions. According to the invention, the magnetic armature (2) has a portion (2.1) designed as a plunger armature and a portion (2.2) designed as a flat armature, the portion (2.1) designed as a plunger armature delimiting a pressure chamber (6) within the solenoid coil (5), which pressure chamber is connected pneumatically, preferably via a choke (7), to a control chamber (8) which can be relieved by opening a control valve (9) which can also be actuated by means of the solenoid coil (5).

Abstract: A shutoff valve for hydrogen tank systems having at least one compressed gas container. The shutoff valve includes a main valve, and a control valve for controlling the main valve. The main valve has a reciprocating valve piston which interacts with a valve seat and delimits, at its end facing away from the valve seat, a control chamber which is connected to a storage volume of the compressed gas container via an inlet throttle and via an outlet throttle, connectable to a gas outlet depending on the switch position of the control valve. The main valve includes a solenoid using which an opening and/or holding force acting on the valve piston can be generated. A compressed gas container having the shutoff valve, and a hydrogen tank system comprising at least one compressed gas container and the shutoff valve, are also described.

Abstract: The invention relates to a shut-off valve comprising: a housing which has an inlet opening, an outlet opening and a control opening, wherein the housing defines an inner space extending along a longitudinal axis and has a partition which divides the inner space into an outlet chamber and a control chamber and has a guide hole which extends between the outlet chamber and the control chamber; an electrical coil which is accommodated in the partition and surrounds the guide hole; a servo valve needle which is arranged in the control chamber, is preloaded along the longitudinal axis into a closed position in which it seals the control opening, and can be moved, by means of a magnetic field which can be generated by the coil, into an open position in which it exposes the control opening and abuts the partition, wherein the servo valve needle has a connecting channel which connects the control chamber to the guide hole in the open position of the servo valve needle; and a main valve needle which is movably guided i

Abstract: A tank device for storing a gaseous medium, in particular hydrogen, includes a valve device and a tank. The valve device includes a valve housing having a longitudinal axis, in which valve housing an interior is formed. An actuation valve element is movable along the longitudinal axis and is arranged in the interior, which actuation valve element interacts with a valve seat in order to open and close an outlet opening and thus forms an actuation valve. The valve device includes a solenoid. The valve seat is formed downstream on the valve housing and at the outlet opening, and the cylindrical outlet opening leads into a cylindrical passage channel, the diameter D of the passage channel is greater than the diameter d of the outlet opening.

Abstract: The invention relates to a tank device (1) for a gaseous medium, comprising a valve device (2) and a tank (10), wherein the valve device (2) has a valve housing (20) with a longitudinal axis (11). The valve housing (20) is equipped with an inner chamber (7), in which a main valve element (16) is arranged in a movable manner along the longitudinal axis (11), said main valve element (16) interacting with a first valve seat (40) and thus forming a main valve (43). An actuation valve element (18) which can be moved along the longitudinal axis (11) is arranged coaxially to the main valve element (16), said actuation valve element (18) interacting with a second valve seat (41) in order to open and close an inlet opening (160) and thus forming an actuation valve (44). The valve device (2) additionally comprises a magnet coil (14).

Abstract: The invention relates to a tank device (1) for storing a gaseous medium, in particular hydrogen, comprising a valve device (2), and a tank (10) and having a longitudinal axis (11). The valve device (2) has a valve housing (20), which is equipped with a pilot valve element (18) that can be moved along the longitudinal axis (11), said pilot valve element (18) interacting with a first valve seat (27) in order to open and close a first outlet opening (56) and thus forming a pilot valve (44). The valve device (2) can be actuated by means of a solenoid coil (14), wherein a main valve element (19) is arranged in the valve housing (20), said main valve element (19) interacting with a second valve seat (40) in order to open and close a second outlet opening (31) and thus forming a main valve (191). The tank device (1) comprises a screw-in housing element (24), wherein the valve device (2) is integrated into a neck region (6) of the tank (10) in a fixed manner by means of the screw-in housing element (24).

Abstract: The invention relates to a tank device (1) for storing a gaseous medium, in particular hydrogen, comprising a valve device (2) and a tank (10). The valve device (2) comprises a valve housing (20) having a longitudinal axis, in which valve housing (20) an interior (7) is formed. An actuation valve element (18) movable along the longitudinal axis (11) is arranged in the interior (7), which actuation valve element (18) interacts with a valve seat (40) in order to open and close an outlet opening (31) and thus forms an actuation valve (44). The valve device (2) comprises a solenoid (14). Furthermore, the valve seat (40) is formed downstream on the valve housing (20) and at the outlet opening (31), and the cylindrical outlet opening (31) leads into a cylindrical passage channel (80), the diameter D of the passage channel (80) being greater than the diameter d of the outlet opening (31).

Abstract: The invention relates to a tank device (1) for a gaseous medium, comprising a valve device (2) and a tank (10), wherein the valve device (2) has a valve housing (20) with a longitudinal axis (11). The valve housing (20) is equipped with an inner chamber (7), in which a main valve element (16) is arranged in a movable manner along the longitudinal axis (11), said main valve element (16) interacting with a first valve seat (40) and thus forming a main valve (43). An actuation valve element (18) which can be moved along the longitudinal axis (11) is arranged coaxially to the main valve element (16), said actuation valve element (18) interacting with a second valve seat (41) in order to open and close an inlet opening (160) and thus forming an actuation valve (44). The valve device (2) additionally comprises a magnet coil (14).