Directional valve and method of operation
US9470324B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 4, 2013 |
| Grant date | Oct 18, 2016 |
| Priority date | — |
| Expiry date | Nov 10, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86887
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve is provided. The valve may include: an axially movable spool having a conical valve portion and dissipating disk portion; a valve housing defining a valve cavity in which the spool resides; a first port in the valve housing; a second port in the valve housing; a land defined by the housing; a wide portion in the housing; and a valve seat defined, at least in part, by the valve housing configured to form a seal with the conical valve portion, wherein the land, the wide portion, the conical valve portion, and the valve seat are dimensioned to cause the disk portion and the land to be proximate to each other when the valve section is near the valve seat and the disk portion is proximate to the wide portion when the valve section is away from the valve seat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.