Valves and valve actuation – Electrically actuated valve – Balanced valve
Patent
1998-04-15
2000-05-30
Rivell, John
Valves and valve actuation
Electrically actuated valve
Balanced valve
251282, F16K 3102
Patent
active
060682361
ABSTRACT:
An electromagnetically operable valve has a valve seat and a valve body. A valve stem forms a guide part provided with a shoulder, by way of which guide part the valve is axially movably guided in a valve guide. A valve disk which, in the closing position of the valve, while forming a hydraulically effective seat diameter, rests against the valve seat. An electromagnetic adjusting device and a spring guide the valve into respective end positions. A control space with a fuel pressure bore is formed between a shoulder of the guide part and the valve disk, and hydraulic forces in the control space act upon the shoulder and the valve disk. In order to construct an electromagnetically operable valve such that an optimal closing and opening function of the valve is ensured for its whole operating time, it is provided that the hydraulically effective seat diameter of the valve is limited such that the hydraulic forces acting upon the shoulder of the guide part and the valve disk in the closing position of the valve are essentially balanced.
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Search Report Aug. 10, 1998 United Kingdom.
Daimler-Chrysler AG
Rivell John
Schoenfeld Meredith H.
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