Title:
【発明の名称】電磁弁
Document Type and Number:
Japanese Patent JP2540206
Kind Code:
B2
Abstract:
A valve for sealing a conduit under pressure has an armature (12) cooperating with two springs, a permanent magnet, and a solenoid coil. The force of the permanent magnet is used to cock a spring and thereby stored primarily as a spring force when the valve is in any of its two end positions. THe spring force is slightly smaller than the permanent magnetic force of the permanent magnet, and this slightly smaller spring force is effective on a valve stem through a sleeve in a direction opposite to that of the permanent magnetic force. The permanent magnetic force is, for example, stored in a Belleville spring and additionally in a helical or conical spring which provides an extra valve biasing force. In order to open the valve, the solenoid coil (9) of an electromagnet is energized to counteract the force of the permanent magnet to an extent slightly below the stored spring force. Thus, this valve is capable of having a monostable or a bistable characteristic, depending on the adjustment of the spring force with the aid of an adjustment ring engaging a threading on the valve stem.
Inventors:
FURANTSU FUTSUKUSU
Application Number:
JP10359589A
Publication Date:
October 02, 1996
Filing Date:
April 25, 1989
Export Citation:
Assignee:
METSUSAASHUMITSUTO BERUKO BUROOMU GMBH
International Classes:
F16K31/08; F16K31/06; F16K31/10; (IPC1-7): F16K31/06
Domestic Patent References:
| JP62155385A | ||||
| JP5789071U | ||||
| JP594877U |
Attorney, Agent or Firm:
Mitsuyoshi Ezaki (1 person outside)