Miniature solenoid valve
US4018419A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 2, 1976 |
| Grant date | Apr 19, 1977 |
| Priority date | — |
| Expiry date | Jan 2, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/082
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A solenoid valve is provided for controlling fluid communication in a passage defined between a first and a second orifices. A valve seat is defined in the passage and a valve member is adapted to be urged into contact with the valve seat to interrupt fluid communication between the first and second orifices. A coil and a fixed core control movement of the valve member in response to energization of the coil. The valve member is attached to a magnetized rod which is coaxial with the core. When the coil is not energized, the magnetized rod is normally attracted toward the fixed core in response to induced magnetization of the latter, to keep the valve member away from the valve seat. In response to energization of the coil, magnetization of the core is reversed and the rod 28 is repelled so that the attached valve member is urged into contact with the valve seat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.