초록 ▼

The valve according to the invention in intended, in particular, for high-pressure gas containers containing up to 300 bar. It comprises a shut-off element which is hold on its valve seat under the action of a compression spring and of the gas pressure. In order that the high closing pressure can be

The valve according to the invention in intended, in particular, for high-pressure gas containers containing up to 300 bar. It comprises a shut-off element which is hold on its valve seat under the action of a compression spring and of the gas pressure. In order that the high closing pressure can be overcome with relatively little force, a piston whose top surface has a larger diameter than the diameter of the valve seat is provided on the actuating side. This top surface is situated in a pressure space which can be connected to the interior of the gas container via a pressure-balance passage by means of an electromagnetically actuable closing element.

대표청구항 ▼

[ What is claimed is:] [7.] An electromagnetically actuable valve for a container of pressurized fluid, comprising:a valve housing attachable to the gas container, the valve housing including an axial inlet passage, an outlet passage, and an axial hole adjoining the inlet passage, the axial hole bei

[ What is claimed is:] [7.] An electromagnetically actuable valve for a container of pressurized fluid, comprising:a valve housing attachable to the gas container, the valve housing including an axial inlet passage, an outlet passage, and an axial hole adjoining the inlet passage, the axial hole being connected to the inlet passage by a shoulder, the shoulder defining a valve seat;a shut-off element held on the annular valve seat under the action of a compression spring and gas pressure;a spindle sealingly mounted in the axial hole to move axially and act on the shut-off element, an end of the spindle remote from the shut-off element being a spindle piston and having a diameter larger than the diameter of the valve seat, the spindle piston being mounted in a cylindrical guiding sleeve, the end of the guiding sleeve remote from the spindle being closed;an axial pressure-balance passage disposed through the spindle and the shut-off element;an electromagnetically actuated opening element adapted to form a pressure space proximate the spindle piston when the opening element is activated, the pressure space enabling the pressurized fluid to travel from the container through the axial pressure-balance passage and pressure space to act on the spindle piston, spindle and shut-off element against the action of the compression spring, the pressurized fluid thereby being released through the valve outlet when the shut-off element moves away from the valve seat;a first cylindrical magnet armature which can be moved axially in the guiding sleeve counter to the action of a closing spring by means of an electromagnetically coil situated in the valve housing, the side of the first magnet armature which is associated with the spindle piston including a seal which, under the action of the closing spring, closes off the outlet opening of the pressure-balance passage in the spindle when the coil is not excited; anda second cylindrical magnet armature which can be moved in the guiding sleeve and which is separated from the spindle piston by means of a distance pin arranged along the first magnet armature, the distance pin being longer than the first magnet armature and, when the coil is excited, the two magnet armatures attract one another counter to the action of the closing spring.