Pressure valve
AssigneeRobert Bosch GmbH
InventorKiyotaka Ogata
Life of this patent
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Abstract
A pressure valve for installation in a feed line between a fuel injection pump and an injection site of an internal combustion engine to be supplied. The valve has at least one movable valve member, embodied as a valve ball, which can be brought by a restoring spring into contact with a valve seat A spring plate is provided between the restoring spring and the valve ball and has a spherical surface for guiding the valve ball, and a bearing face, remote from this spherical guide face, for the restoring spring. This spherical surface that guides the valve ball is intended to be interrupted at the spring plate.
Claims8
A pressure valve for installation in a feed line (3) between a fuel injection pump and an injection site (7) of an internal combustion engine to be supplied, comprising at least one movable valve member embodied as a valve ball (31), said valve ball is forced by a restoring spring (33) into contact with a valve seat face (29), and a spring plate (35) is provided between the restoring spring (33) and the valve ball (31) and has a spherical surface (43) that guides the valve ball (31), and a bearing face, remote from this spherical guide face, for securing the restoring spring (33), the spherical surface (43) guiding the valve ball (31) is interrupted by recesses at the spring plate (35), and the recesses in the spherical surface (43) are embodied as obliquely disposed polished faces (45).
Dependencies are inferred from the claim text.