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. 27, 2011
Filed:
Jul. 16, 2007
Philip J. G. Dingle, Rochester, MI (US);
Philip J. G. Dingle, Rochester, MI (US);
Delphi Technologies Holding S.arl, Troy, MI (US);
Abstract
A fluid delivery system for delivering a metered dose of fluid from a supply tank () to a downstream chamber or vessel (), comprises a pump apparatus () comprising a pump plunger () which is operable to perform a pumping stroke under the control of an electromagnetic actuator (), including a solenoid (), to effect delivery of the fluid and a control unit () for supplying an input signal () to the solenoid () to initiate a current flow to the solenoid () and thereby initiate movement of the pump plunger (). An electronic device () provides an output signal to indicate that movement of the pump plunger has stopped at the end of the pumping stroke, and a timer determines a time difference between the input signal () being supplied to the solenoid () and the output signal being output by the electronic device (). A processor () compares the time difference with a predetermined time difference and determines, as a result of the comparison, whether or not the pump plunger () has performed a valid pumping stroke in which an intended volume of fluid is displaced.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile