Proportional magnet valve
US5322259A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 1992 |
| Grant date | Jun 21, 1994 |
| Priority date | — |
| Expiry date | Aug 14, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/0658
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A proportional magnet valve is provided with which manufacturing tolerances can be equalized and balanced by having an armature with an adjustment member axially adjustable. Consequently it is made possible to adjust every magnet valve that is mass produced so that a predetermined coil current corresponds to a predetermined magnet force and with that corresponding to a predetermined working pressure of a magnet valve. Because of adjustment capability of the armature, no close or narrow manufacturing tolerances must be maintained to permit cost advantageous production of the magnet valve. Also, an exchange of a magnet valve upon wear or damaging thereof is possible in a simple and straight forward manner because the novel magnet valve can be adjusted exactly without difficulty. Consequently, a predetermined pressure-current-characterizing line is maintained so that, independently of tolerance position of the magnetic force and the tolerances of hydraulically effective diameter of the structural parts, always the same pressure-current-characterizing line can be attained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.