Hydraulic valve device
US8602055B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2008 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | Apr 9, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87249
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic valve device has a fluid port arrangement (10) with various ports extending at least partially in the valve housing (14), and has a movable control device (18) for at least partially activating the ports. The control device (18) can be acted on at two opposite control sides with a control pressure (XA, XB) of an activation unit (46). A valve device of narrow construction and functionally reliable is created by a media-conducting duct (66) with a guide path extending at least partially as an open duct channel that can be closed off by a cover part or by other housing parts of the multi-part valve housing (14), to conduct the control pressure (XB) from the activation unit (46) to the assignable control side of the control device (18).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.