Guiding deformation in seated hydraulic metering devices
US9631738B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 11, 2013 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Sep 9, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49405
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic valve arrangement includes a manifold and a poppet. The manifold defines a bleed ring that surrounds a bore and has an angled surface. The manifold also defines an annular recess around the bleed ring that provides a relief region. The poppet is slidably disposed within the bore and is structured to close a main flow path between the first and second ports when the poppet is in a first position and the poppet being structured to at least partially open the main flow path when the poppet slides away from the first position. The poppet defines an angled contact surface that is configured to engage the angled contact surface of the bleed ring when the poppet is in the first position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.