Solenoid valve
AssigneeBurkert Werke GmbH & Co.
InventorsManfred Pieloth, Dieter Schrepel, Heinz Topfer
Life of this patent
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Abstract
The solenoid valve, which can be used as a single valve to control small flow quantities, or also as a pilot valve for valves controlling larger flow quantities of a medium, has a narrow, oblong cuboid valve housing (10), in which two seal seats (38, 40) and an oblong chamber (26) are formed. In this chamber (26) a bar-shaped armature (28) is movably accommodated and pivotally located on a blunt edge (30). The armature (28) has two recesses (42, 44) each opposite the seal seats (38, 40). A seal (46, 48) is located in each recess. The armature (28) is retained in its functional position by means of a return spring (50) stabilised in position on the floor of the chamber (26), the spring engaging in one recess (44) of the armature (28).
Claims10
A solenoid valve comprising an oblong valve housing, an oblong chamber formed in said housing, a pair of valve seats arranged in said housing and a bar-shaped armature accommodated in said chamber, said armature being preloaded in one of two switching positions by means of a return spring, and further comprising a solenoid unit which is joined to the valve housing on a side of the housing opposite said valve seats, said armature being loosely fitted into said chamber and having a blunt support edge and being pivotally mounted on a flat face adjacent said solenoid unit by means of said blunt edge which bears on said flat face, and said armature further carrying a pair of seal members for alternately closing and opening said valve seats on pivotal movement between said switching positions.
A solenoid valve comprising an oblong valve housing, an oblong chamber formed in said housing, a pair of valve seats arranged in said housing and a bar-shaped armature accommodated in said chamber, said armature being preloaded in one of two switching positions by means of a return spring, and further comprising a solenoid unit which is joined to the valve housing on a side of the housing opposite said valve seats, said armature being loosely fitted into said chamber and having a blunt support edge and being pivotally mounted on a flat face adjacent said solenoid unit by means of said blunt edge which bears on said flat face, and a pair of seal members being formed on a diaphragm which has a peripheral edge clamped between first and second parts of said housing, and said armature is connected to said diaphragm by a pair of tappets, each tappet having one end flexibly connected to said armature and another end connected to said diaphragm close to a corresponding one of said seal members.
Dependencies are inferred from the claim text.