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. 19, 2013
Filed:
Sep. 02, 2009
Peter Popadiuc, Bensenville, IL (US);
Martin R. Zielke, Lockport, IL (US);
Luis Carlos Cattani, Aurora, IL (US);
Robert L. Rowells, Elmwood Park, IL (US);
George L. Banta, Iii, Naperville, IL (US);
Ernst Duerr, Willowbrook, IL (US);
Peter Popadiuc, Bensenville, IL (US);
Martin R. Zielke, Lockport, IL (US);
Luis Carlos Cattani, Aurora, IL (US);
Robert L. Rowells, Elmwood Park, IL (US);
George L. Banta, III, Naperville, IL (US);
Ernst Duerr, Willowbrook, IL (US);
International Engine Intellectual Property Company, LLC, Lisle, IL (US);
Abstract
An expansion tank () for a vehicle cooling system () of an engine using a liquid coolant () includes a tank body () defining a first volume (V) containing coolant (), wherein the coolant defines a variable coolant elevation level (CEL) within the tank body. The tank body () also defines an upper volume () containing air. A bladder () is disposed in the tank body () and defines a second volume (V) containing air. The bladder () includes a flexible membrane () actuated by an actuator (). When the engine is stopped or is below a predetermined temperature, the flexible membrane () is moveable to a first position (FP) which lowers the coolant elevation level (CEL), and when the engine is started or reaches a predetermined temperature, the flexible membrane () is moveable to a second position (SP) which raises the coolant elevation level. A communicating line () is in fluid communication between the upper volume () and the second volume (V) to fluidly communicate air therebetween.