US 12,286,908 B2
Valvetrain power transfer module with shortened leaf-spring contact
Dale Arden Stretch, Novi, MI (US)
Assigned to Eaton Intelligent Power Limited, Dublin (IE)
Appl. No. 17/611,957
Filed by Eaton Intelligent Power Limited, Dublin (IE)
PCT Filed May 15, 2020, PCT No. PCT/EP2020/025226
§ 371(c)(1), (2) Date Nov. 17, 2021,
PCT Pub. No. WO2020/233835, PCT Pub. Date Nov. 26, 2020.
Claims priority of provisional application 62/849,447, filed on May 17, 2019.
Prior Publication US 2022/0235677 A1, Jul. 28, 2022
Int. Cl. F01L 1/18 (2006.01); F01L 1/047 (2006.01); F01L 1/46 (2006.01); F01L 9/26 (2021.01); F01L 13/00 (2006.01)
CPC F01L 1/185 (2013.01) [F01L 1/047 (2013.01); F01L 1/181 (2013.01); F01L 1/46 (2013.01); F01L 9/26 (2021.01); F01L 13/0005 (2013.01); F01L 13/0036 (2013.01); F01L 2001/186 (2013.01); F01L 2013/001 (2013.01); F01L 2013/101 (2013.01)] 20 Claims
OG exemplary drawing
 
8. A valvetrain for an internal combustion engine of a type that has a combustion chamber and a moveable valve having a seat formed in the combustion chamber, comprising:
a camshaft;
a pivot;
a rocker arm assembly mounted on the pivot and comprising a rocker arm, a cam follower configured to engage a cam mounted on the camshaft as the camshaft rotates, and two contact pins protruding to opposite sides of the rocker arm assembly;
an electromagnetic latch assembly comprising a latch pin and an electromagnet powered through at least one of the contact pins, wherein the electromagnet is operable to move the latch pin between a first latch pin position and a second latch pin position;
a power transfer module comprising a framework that has a base that abuts the pivot; and
two contact pads that extend upward from the base and terminate with free floating upper ends, wherein the two contact pads respectively abut tips of the two contact pins to form an electrical circuit, wherein the two contact pins respectively bias the two contact pads outwardly along the longitudinal axes of the two contact pins.