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:
Mar. 07, 2017
Filed:
Jul. 05, 2012
Laurent Jeannel, Leonberg-Hoefingen, DE;
Kerstin Koch, Schwieberdingen, DE;
Franz Thoemmes, Bietigheim-Bissingen, DE;
Martin Stahl, Remseck, DE;
Laurent Jeannel, Leonberg-Hoefingen, DE;
Kerstin Koch, Schwieberdingen, DE;
Franz Thoemmes, Bietigheim-Bissingen, DE;
Martin Stahl, Remseck, DE;
ROBERT BOSCH GMBH, Stuttgart, DE;
Abstract
A metering valve or an injector includes: a valve-seat member which closes a valve chamber and has a central valve opening, and a spray orifice disk downstream from the valve-seat member in the flow direction of the fluid, which has at least one spray orifice. The spray orifice disk has a swirl chamber concentric with the spray orifice and at least one swirl duct leading from the swirl chamber to beneath the valve opening, and the swirl chamber and swirl duct are integrally formed as recesses into the disk surface of the spray orifice disk facing the valve body. The swirl duct has a duct cross section and the spray orifice has an orifice cross section such that the ratio of the duct cross section to the orifice cross section is equal to or greater than 1.5.