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:
May. 25, 2004
Filed:
Aug. 08, 2002
Hermann Josef Laumen, Heinsberg, DE;
FEV Motorentechnik GmbH, Aachen, DE;
Abstract
The invention relates to an injection device for the metered injection of two liquids, in predeterminable quantity ratios, into a reaction chamber, the device having a housing ( ) that includes an injection nozzle, the opening ( ) of which forms an injection valve with the valve seat ( ) in the housing ( ) and a valve body ( ) that can be positioned on the valve seat ( ); the valve body ( ) can be moved by a first actuator; the collection chamber ( ) of the device is associated with the nozzle opening ( ), and is connected to a supply line ( ) for the first liquid (A) and a supply line ( ) for the second liquid (B), with a metering valve ( ) being set up to block at least one supply line ( ) to the collection chamber, the valve being actuated by a second actuator; one of the two liquids is under a higher pressure than the other liquid; the device further has a control device ( ), which can actuate the two actuators as a function of a load-stipulated total injection quantity and as a function of a predeterminable quantity ratio of the two liquids (A, B), with at least one valve being actuated in a clocked manner.