Patent · US Active

Valve calibration method and apparatus

US7543595B2 · kind B2 · utility

3Cited by

7References

26Claims

0Family size

Assignee

SIEMENS BUILDING TECHNOLOGIES AG · CH

Inventors

Steven D. Jacob · Crystal Lake, US
William Glaser · Berkeley, US
Paul E. Pelczynski · Lake Zurich, US

Key dates

Filing date	Jun 27, 2003
Grant date	Jun 9, 2009
Priority date	—
Expiry date	Jan 1, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/7761
WIPO fieldControl
WIPO sectorInstruments

Abstract

An arrangement for calibrating a Venturi valve includes a source of flow measurements and a processing circuit. The Venturi valve has a variable shaft position and is operable to provide an air flow corresponding to the variable shaft position. The processing circuit is operable to provide a plurality of voltages to an actuator, the actuator operable to change the variable shaft position dependent on said plurality of voltages. The processing circuit is also operable to receive from the source of flow measurements a flow measure for each variable shaft position corresponding to each of the plurality of voltages. The processing circuit is further operable to store information representative of the relationship between each of the plurality of voltages and the flow measures.

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