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:
Aug. 14, 2018
Filed:
Dec. 17, 2015
Eaton Corporation, Cleveland, OH (US);
Dale Arden Stretch, Novi, MI (US);
John Albert Kovacich, Waukesha, WI (US);
John Trublowski, Troy, MI (US);
James Edward McCarthy, Jr., Kalamazoo, MI (US);
Karen Evelyn Bevan, Northville, MI (US);
Douglas J. Nielsen, Marshall, MI (US);
David Yee, West Bloomfield, MI (US);
Evan Grimm, Danbury, CT (US);
Xubin Song, Canton, MI (US);
Martin Pryor, Canton, MI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
An apparatus for measuring at least one of temperature and pressure within a cylinder of an internal combustion engine can include an engine valve and a sensor. The internal combustion engine can include a valvetrain having rocker arm assembly, a camshaft, a valve, and a hydraulic lash adjuster. The engine valve can have a valve head and a valve stem extending from the valve head in an axial direction. The valve head can have a valve face configured to be in pressure communication with an engine cylinder. The valve stem can have an outer surface with a cylindrical portion and a variably-shaped portion. The variably-shaped portion can define a target detectable by the sensor and the sensor can be installed adjacent to the target. Alternatively, the sensor can be positioned to detect a level of force at some point along the valvetrain.