Document Type and Number:
Japanese Patent JPS57500479
Kind Code:
A
Abstract:
The valve has one valve element (2) which is biased by a spring (3) against a valve feet (4). In an open position, the valve element bears on a stop (20). In order to allow an accurate regulation of the closure pressure and to obtain a smaller closure interval, the valve element (2) or one envelope (15) is provided with a magnet (21) cooperating with a ferromagnetic stop (22) arranged on the envelope (15) or the valve element (2). The arrangement is such that, when the valve element (2) is closed, the magnet is at least approximately at the level of the ferromagnetic stop (22), whereas when the valve element (2) is open, this magnet is at a certain distance (X) from the stop. The force of the magnet (21) is smaller than that of the spring (3).
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Application Number:
JP50090281A
Publication Date:
March 18, 1982
Filing Date:
March 26, 1981
Export Citation:
International Classes:
B60C23/00; B60C29/00; F16K17/00; (IPC1-7): F16K17/00; B60C29/00; B60C23/00
Domestic Patent References:
| JP55500321Y | ||||
| JPS5140623A | 1976-04-05 |