公开(公告)号：US20190257226A1

公开(公告)日：2019-08-22

申请号：US16397161

申请日：2019-04-29

Applicant: Eaton Intelligent Power Limited

Inventor： Austin Zurface ,  James Edward McCarthy, JR.

IPC: F01L13/00 ,  F01L1/18 ,  F01L1/053 ,  F01L1/24

Abstract: A switching rocker arm assembly constructed in accordance to one example of the present disclosure can include an outer arm, an inner arm, a pivot axle, a bearing axle, a first torsional bearing axle spring and a second torsional bearing axle spring. The outer arm can have a first outer side arm and a second outer side arm. The outer arm can further include first and second torsional spring mounts. The inner arm can be disposed between the first and second outer side arms. The pivot axle can support the inner and outer arm for relative pivotal movement therearound. The bearing axle can support a bearing. The first torsional bearing axle spring can be mounted around the first torsional spring mount and have a first end engaged to the bearing axle and a second end engaged to the outer arm. The first end extends inboard relative to the second end.

公开(公告)号：US20200040776A1

公开(公告)日：2020-02-06

申请号：US16517628

申请日：2019-08-04

Applicant: Eaton Intelligent Power Limited

Inventor： James Edward McCarthy, JR. ,  Mark Allan Juds ,  Douglas Anthony Hughes ,  Nicholas Peter Gillette ,  Matthew Richard Busdiecker

IPC: F01L1/18 ,  F01L13/00 ,  F02D41/22

Abstract: An internal combustion engine includes a cam-actuated rocker arm assembly with a solenoid-actuated latch that provides for cylinder deactivation or variable valve actuation. The solenoid is in a position where its inductance varies significantly in relation to the position of a latch pin as it translates between latching and non-latching configurations. A sensor is positioned to monitor a current or a voltage in a circuit that includes the solenoid. The sensor data is analyzed to provide diagnostic information relating to the operation of the rocker arm assembly.

公开(公告)号：US20200300129A1

公开(公告)日：2020-09-24

申请号：US16893823

申请日：2020-06-05

Applicant: Eaton Intelligent Power Limited

Inventor： Petr Liskar ,  Jiri Cecrle ,  Dale Arden Stretch ,  Michael J. Campbell ,  Tomas Drabek ,  James Edward McCarthy, JR. ,  Austin Robert Zurface ,  Robert Philip Benjey ,  Eric John Yankovic ,  Brian Karl Vandeusen ,  Nicholas Peter Gillette ,  Michael James Stanton ,  Thomas Michael Tembreull ,  Anthony Leon Spoor

IPC: F01L1/22 ,  F01L1/053 ,  F01L1/18 ,  F01L13/00 ,  F01L1/24 ,  F01L3/24

Abstract: A valvetrain for an internal combustion engine of the type that has a combustion chamber, a moveable valve having a seat formed in the combustion chamber, and a camshaft includes a rocker arm assembly, a pivot providing a fulcrum for a rocker arm of the rocker arm assembly, and a latch assembly. An electrical device mounted to the rocker arm assembly receives power or communicates through a circuit that includes an electrical connection formed by abutment between surfaces of two distinct parts. The rocker arm assembly is operative to move one of the two abutting surfaces relative to the other in response to actuation of the cam follower. Forming an electrical connection through abutting surfaces that are free to undergo relative motion may reduce or eliminate the need to run wires to a mobile portion of the rocker arm assembly.