US Patent 7552799 Lubrication control system

Patent 7552799 was granted and assigned to University of Central Lancashire on June, 2009 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

University of Central Lancashire

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7552799

Date of Patent

June 30, 2009

Patent Application Number

10168619

Date Filed

December 21, 2000

Patent Primary Examiner

‌

David M. Fenstermacher

Patent abstract

FIG. 2 shows a cross-section through a piston 10 and cylinder wall 12 of an internal combustion engine. A piston ring 14 is located within a ring groove 16 and the piston 10. The piston ring 14 is part of an oil film thickness measurement section 18, the other parts of which comprise a displacement transducer 20 and an electrical signal conditioning unit 22. The oil supply control system also includes a control system section 24, which comprises an on line calibration section 26, an oil injection system 28 and a controller 30. Also, a user interface 38 and a secondary signal conditioning unit 40 receiving secondary signal measurements from unit 42 or several units 42 are included.