Patent · US Active

Control valve

US9903481B2 · kind B2 · utility

6Cited by

9References

6Claims

0Family size

Assignee

BELIMO Holding AG · CH

Inventors

Urs Keller · Plymouth, US
Andrew J. Jukes · Wetzikon, CH
Giuseppe Cicerchia · Winterthur, CH

Key dates

Filing date	May 9, 2014
Grant date	Feb 27, 2018
Priority date	—
Expiry date	May 9, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16K47/02
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A control valve having a closing element, mounted in a housing between an inlet side and an outlet side and rotatable about an axis between a first and second end positions, and a passage channel through the closing element perpendicularly with respect to the rotational axis. The channel has inlet and outlet openings and connects the inlet side to the outlet side in the first end position, disconnects the inlet side from the outlet side in the second end position, and permits an increasing throughflow of a medium during the transition from the second end position into the first end position with a characteristic curve. Low valve noise is achieved because of the shape, size and configuration of the inlet and outlet openings of the passage channel and the configuration of walls of the passage channel without steps and edges.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.