Fluid device
US11112026B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2018 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Nov 6, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7761
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electromagnetic valve as a fluid device is provided with a valve seat and a valve body midway of a flow path where a liquid flows, and closes the valve with the valve body pressed onto the valve seat and opens the valve by causing a gap between the valve seat and the valve body. The electromagnetic valve includes, as electrodes for measuring a degree of electrical conductivity between a liquid on an upstream side and a liquid on a downstream side of the valve seat and the valve body in the flow path, a first electrode electrically conductive to the liquid on the upstream side and a second electrode electrically conductive to the liquid on the downstream side. By using the first and second electrodes, detection of liquid leakage can be easily performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.