Solenoid valve
US6628186B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 3, 2001 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Aug 3, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/0651
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A proportional activation magnet (1) for a hydraulic solenoid valve has a pole (3) with a valve cone receiving bore (17) for receiving a valve cone (20) and a pole tube (14) for receiving an armature (30). An armature tappet (33) extends between the armature (30) and valve cone (20). A retention area (35) with a tappet passage opening (36) is provided around the armature tappet (33) in a region between the valve cone receiving bore (17) and pole tube (14). An annular gap with a predefined gap width is formed between the inside of the tappet passage opening (36) and the outside of the armature tappet (33) which extends in the tappet passage opening (36).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.