Patents by Inventor David Ehud Silberstein

David Ehud Silberstein has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6182646
    Abstract: A closed-loop controlled system solenoid actuated EGR valve includes an engine mount for attachment to a vehicle engine, a valve housing to which the engine mount is attached, a motor housing positioned above the valve housing, and a sensor housing. The valve housing includes a valve inlet adapted to receive engine exhaust gas and a valve outlet which communicates the engine exhaust gas from the valve inlet to an engine intake system. The motor housing has a bobbin, an armature, and a valve stem disposed in a bore formed therein. The valve stem is in communication with a plunger extending from the sensor housing to monitor the position of the valve stem with respect to the valve seat. A guide bearing is positioned in the housing to guide the armature while a valve stem bearing is positioned in the valve housing to contact and position the valve stem with respect to the valve seat while a valve opening is being closed.
    Type: Grant
    Filed: March 11, 1999
    Date of Patent: February 6, 2001
    Assignee: BorgWarner Inc.
    Inventors: David Ehud Silberstein, Giuseppe Ganio Mego, John C. Green, Robert Meilinger