Valves and valve actuation – Electrically actuated valve – With means to bias valve open
Reexamination Certificate
2011-08-30
2011-08-30
Bastianelli, John (Department: 3753)
Valves and valve actuation
Electrically actuated valve
With means to bias valve open
C251S337000, C303S119200
Reexamination Certificate
active
08006951
ABSTRACT:
Disclosed is a solenoid valve having a magnet unit and a valve cartridge having a capsule, an armature guided longitudinally in the capsule and connected to a sealing pin guided longitudinally inside a valve insert, and a valve body with a sealing seat; a magnetic force generated by the magnet unit moves the armature together with the sealing pin from an initial position toward the valve body counter to the force of a return spring, causing the sealing pin to move into and close the sealing seat in an end position, where the initial position represents a maximum volumetric flow between a valve inlet and a valve outlet. A spring support is embodied and situated so that the return spring is supported outside the volumetric flow and presses the armature into the initial position against the capsule, and the inlet and outlet are embodied and situated so that the direction of the volumetric flow assists the closing motion of the armature with the sealing pin.
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Guggenmos Harald
Kirschner Martin
Mueller Robert
Ullmann Peter
Bastianelli John
Greigg Ronald E.
Robert & Bosch GmbH
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