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:
Jan. 15, 2019
Filed:
Aug. 18, 2015
Eaton Corporation, Cleveland, OH (US);
Petr Liskar, Prague, CZ;
Mark Allan Juds, New Berlin, WI (US);
Mustafa Huseyin, London, GB;
Peter John Theisen, West Bend, WI (US);
Amogh Vilas Kank, Thane, IN;
Dale Arden Stretch, Novi, MI (US);
Andrei Dan Radulescu, Marshall, MI (US);
Douglas Anthony Hughes, Novi, MI (US);
Otto Schultheis, Albion, MI (US);
Kyle Crayne, Bloomfield Hills, MI (US);
James Edward McCarthy, Jr., Canton, MI (US);
Eaton Intelligent Power Limited, Dublin, IE;
Abstract
A valvetrain includes a rocker arm assembly having an electromagnetic latch housed in a chamber formed by a rocker arm. The chamber may be a retrofit hydraulic chamber. A flux shifting bi-stable latch provides a sufficiently compact design. Isolation of the magnetic elements within the rocker arm chamber may provide protection from metal particles carried by oil in an operating environment for the rocker arm assembly. Wiring connections to the rocker arms may be made through spring posts on the rocker arms. Connection to the rocker arms may be made with springs that can endure the rapid motion induced by the rocker arms. A wiring harness for the rocker arms may attach to hydraulic lash adjusters of the rocker arm assemblies. The rocker arm assemblies and their wiring may be formed into a unitary module that facilitates installation.