Flow-diverting rotary valves of multiple paths
US6904936B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 10, 2003 |
| Grant date | Jun 14, 2005 |
| Priority date | — |
| Expiry date | Sep 30, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86871
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention describes a rotary valve for simultaneously diverting a plurality of liquid streams among a plurality of liquid receivers in a sequential and cyclic manner. Said rotary valve comprises: (1) a stator of barrel shape having a circular cavity, a bottom, a lateral structure, a group of first ports being spaced longitudinally along the lateral structure, and a group of second ports being evenly spaced apart on the bottom around the axis of the stator at the same distance from said axis, the number of the second ports being n multiple of that of the first ports wherein n is an integer of 1 or larger; (2) a rotor constructed by a hollow shaft section and a core section within said hollow shaft section, said hollow shaft section having a lateral structure accommodating a plurality of top openings that are longitudinally spaced apart and a bottom end accommodating a plurality of bottom openings that are evenly spaced apart around the axis of the hollow shaft at the same distance from said axis as the distance of the second ports from the axis of the stator, said core structure accommodating a plurality of flow passages that connect the top openings to the corresponding…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.