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:
Sep. 17, 2013
Filed:
Dec. 29, 2005
Hans Henrik Jochumsen, Allerød, DK;
Niels Stubager Kiemer, Veksø, DK;
Karim Lindberg, Veksø, DK;
Niels Torp Madsen, Birkerød, DK;
Tom Johansen, Helsingborg, SE;
Hans Henrik Jochumsen, Allerød, DK;
Niels Stubager Kiemer, Veksø, DK;
Karim Lindberg, Veksø, DK;
Niels Torp Madsen, Birkerød, DK;
Tom Johansen, Helsingborg, SE;
Grundfos NoNox a/s, Bjerringbro, DK;
Abstract
The invention relates to a metering pump for admixing a fluid reduction agent into an exhaust gas flow, which comprises a premixing device in which the supplied reduction agent is mixed in a mixing region with a pressurized gas, wherein a first return valve is arranged in the premixing element in a supply conduit for the reduction agent, in front of the mixing region in the flow direction.