Random access rotary valve

US8770226B2 · kind B2 · utility

Assignee

• GE Healthcare Bio-Science AB · US

Inventors

• Anders Wilen · Uppsala, SE
• Patrik Kallback · Karlstad, SE

Key dates

• Filing date: Nov 9, 2009
• Grant date: Jul 8, 2014
• Expiry date: Jul 24, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/86863
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A rotary valve comprising a stator with an inner stator face, and a rotor with an inner rotor face arranged in sealing contact with the inner stator face, the rotor is rotatably movable to a plurality of rotor positions about a rotational axis relative to the inner stator face, the stator comprises a plurality of connection ports each being in fluidic contact with a corresponding valve orifice at the inner stator face and the rotor comprises two or more interconnection paths for selective fluidic interconnection of said valve orifices with respect to the rotor position. Wherein the stator comprises, a main inlet port, a main outlet port, a first component feed port, a first component return port, a second component feed port, a second component return port, and wherein the interconnection paths in the rotor are arranged to: —in a first rotor position interconnect the main inlet port with the main outlet port, —in a second rotor position interconnect the main inlet port with the first component feed port and the first component return port with the main outlet port, —in a third rotor position interconnect the main inlet port with the first component feed port, the first component re…