Multi-port solenoid valve and its assembly
US6546959B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2002 |
| Grant date | Apr 15, 2003 |
| Priority date | — |
| Expiry date | Apr 17, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87885
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve includes a bobbin/valve body, a solenoid and a plunger. The bobbin/valve body is formed in one piece, defines all of the valve's inlet/outlet ports and forms the entire support structure for the solenoid and the plunger. To assemble the valve, a plunger body is inserted into the bobbin/valve body through an end opening into a longitudinal bore and a spring positioned to bias the plunger body to a normally closed position. A pole piece is then inserted through the end opening into the longitudinal bore and attached to the bobbin/valve body. A solenoid coil is wound around a central cylindrical section of the bobbin/valve body, and terminal pins and a flux conductor are attached to the bobbin/valve body. The attachment of the pole piece, the terminal pins, and/or the flux conductor may be accomplished by press-fit and/or swage coupling techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.