公开(公告)号：US10047644B2

公开(公告)日：2018-08-14

申请号：US14973005

申请日：2015-12-17

Applicant: Eaton Corporation

Inventor： Dale Arden Stretch ,  John Albert Kovacich ,  John Trublowski ,  James Edward McCarthy, Jr. ,  Karen Evelyn Bevan ,  Douglas J. Nielsen ,  David Yee ,  Evan Grimm ,  Xubin Song ,  Martin Pryor

IPC: F01L3/08 ,  G01L23/04 ,  G01L23/14 ,  G01K13/00 ,  G01M15/08 ,  F02D35/02

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.

公开(公告)号：US20170241300A1

公开(公告)日：2017-08-24

申请号：US15503458

申请日：2015-08-18

Applicant: Eaton Corporation

Inventor： Petr Liskar ,  Mark Allan Juds ,  Mustafa Huseyin ,  Peter John Theisen ,  Amogh Vilas Kank ,  Dale Arden Stretch ,  Andrei Dan Radulescu ,  Douglas Anthony Hughes ,  Otto Schultheis ,  Kyle Crayne ,  James Edward McCarthy, Jr.

IPC: F01L1/24 ,  F01L1/18

CPC classification number: F01L13/0005 ,  F01L1/185 ,  F01L1/2405 ,  F01L1/46 ,  F01L13/0036 ,  F01L2001/186 ,  F01L2001/187 ,  F01L2009/0401 ,  F01L2009/0421 ,  F01L2009/0428 ,  F01L2009/0448 ,  F01L2009/0463 ,  F01L2009/0465 ,  F01L2103/00 ,  F01L2105/00 ,  F01L2820/031

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.