公开(公告)号：US20230304602A1

公开(公告)日：2023-09-28

申请号：US17822666

申请日：2020-11-09

Applicant: TECAN TRADING AG

Inventor： John GREENE ,  Michael John KENNEDY ,  Torleif Ove BJÖRNSON ,  Werner HÄLG

IPC: F16K37/00 ,  F16K31/04 ,  F16K11/08

CPC classification number: F16K37/0041 ,  F16K31/042 ,  F16K11/08

Abstract: A rotary valve comprises a stator member with a stator face, the stator member having at least two stator channels for conducting a fluid and opening into the stator face; a rotor member with a rotor face facing and in contact with the stator face, the rotor member having a rotor channel in the rotor face, wherein the rotor member is rotatable with respect to the stator member about a rotation axis, such that in a conducting position, the rotor channel interconnects the at least two stator channels to be in fluid communication; and a rotary encoder assembly adapted for determining a rotary position of the rotor member, the rotary encoder assembly comprising an encoder member and an encoder module, which is adapted to sense a rotary position of the encoder member. The encoder member is rigidly connected to the rotor member and surrounds the rotor member.