Rotary multi-port valve
US9228664B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jun 5, 2014 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Sep 16, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86533
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rotary multi-port valve has a valve body having a primary flow port and a plurality of secondary flow ports. A rotary diverter is rotatable within the valve body and has an internal piston receptacle. A port selector piston is linearly moveable by hydraulic pressure from a de-energized position within the piston receptacle to an energized position for sealing with a selected flow port and accomplishes development of a spring force during hydraulically energized piston movement. Upon reduction of the hydraulic pressure the stored spring force returns the port selector piston to its de-energized position freeing the rotary diverter member for selective rotation to another selected flow port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.