The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 28, 2014
Filed:
Nov. 03, 2010
Jan Pietraszek, Allerod, DK;
Tue Johannessen, Glostrup, DK;
Jan Pietraszek, Allerod, DK;
Tue Johannessen, Glostrup, DK;
Amminex Emissions Technology A/S, Soborg, DK;
Abstract
A method for controlled dosing of a gas with fluctuating supply pressure (P). Dosing of the gas through a valve () is performed while a valve () is closed, and the decrease in control-volume pressure (P) is recorded. The control-volume pressure (P) is raised by closing dosing valve () and opening the valve (). The amount of the dosed gas is calculated based on the known volume (V) of the control volume () and at least one of the change in control-volume pressure (P) and control-volume temperature (T) in the period where valve () is closed. The amount of dosed gas is compared with a target or set-point to adjust or regulate the subsequent dosing period or dosing event.