Hydraulic sectional control valve with multiple relief slots
US9683586B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 30, 2015 |
| Grant date | Jun 20, 2017 |
| Priority date | — |
| Expiry date | Apr 30, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B13/0417
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A working valve section for a sectional fluid control valve comprising a valve section housing having a substantially planar surface for being attached to an adjacent valve section housing; a main control spool bore (43) extending into the housing substantially parallel to the planar surface; a compensator spool bore (46) extending into the housing substantially parallel to the planar surface, the compensator spool bore being spaced from the main control spool bore; a first relief slot (49a) extending across the planar surface substantially coextensive with the main control spool bore; and a second relief slot (49b) extending across the planar surface substantially coextensive with the compensator spool bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.