Electromagnetic valve device
US5704587A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1995 |
| Grant date | Jan 6, 1998 |
| Priority date | — |
| Expiry date | Aug 4, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T15/028
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electromagnetic valve device includes a valve body having a first fluid chamber, and inlet and outlet passages fluidly communicating with the first fluid chamber. In a first fluid chamber, a first movable member is slidably received within a stationary sleeve to define a second fluid chamber within the sleeve. The second fluid chamber is in continuous fluid communication with the first fluid chamber and is in fluid communication with the inlet passage. The first member has a first valve for selectively interrupting fluid communication between the inlet passage and the first fluid chamber, and is urged by a return spring into a first position to effect fluid communication between the first fluid chamber and the inlet passage. A second movable member operatively connected to an electromagnet has a second valve for selectively interrupting the fluid communication between the inlet passage and the second fluid chamber. The second member is urged by a return spring into a non-energized position in which fluid communication between the second fluid chamber and the inlet fluid passage is interrupted when the first member is positioned in the first position. When the electromagnet is en…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.