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:
Dec. 03, 2013
Filed:
Feb. 25, 2010
William Imoehl, Williamsburg, VA (US);
Willem Nicolaas Van Vuuren, Yorktown, VA (US);
William Imoehl, Williamsburg, VA (US);
Willem Nicolaas Van Vuuren, Yorktown, VA (US);
Continental Automotive Systems, Inc., Auburn Hills, MI (US);
Abstract
A diesel dosing system for a vehicle includes a control valve () controlling fluid flow to a dosing valve () for supplying fuel directly into an exhaust passage of the vehicle. A system pressure source () feeds the control valve. A shutoff valve () is fluidly connected to the pressure source downstream thereof and to the control valve upstream thereof. The shutoff valve permits bi-directional flow there-through. A connection () is between the shutoff valve and the control valve defining a fluid volume there-between. The shutoff valve permits fluid flow from the system pressure source through the connection and to the control valve during a regeneration phase of the system. Upon engine shutdown and based on fluid pressure in the volume, the shutoff valve opens so that fluid trapped in the volume will communicate with the pressure source thereby reducing the fluid pressure in the volume.