公开(公告)号：US20230407771A1

公开(公告)日：2023-12-21

申请号：US18251253

申请日：2021-11-10

Applicant: Eaton Intelligent Power Limited

Inventor： Mirko GUASCHINO ,  Marco RAVONI ,  Nicola ANDRISANI ,  Michele Angelo CECCHI ,  Massimo D'AMORE

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

CPC classification number: F01L1/2416 ,  F01L1/181 ,  F01L13/0005 ,  F01L2001/186 ,  F01L2001/467

Abstract: A latch assembly (500) can comprise a main latch pin assembly (531, 532) comprising a first diameter (D1) on a first main pin face (512, 522), and a secondary latch piston (541, 561) comprising a second diameter (D2) on a secondary piston face (543, 563). The secondary latch piston can be configured to selectively act on the main latching pin assembly. The main latch pin assembly can be biased to oppose the secondary latch piston. The first diameter can be greater than the second diameter. A rocker arm assembly (10) can comprise the latch assembly. A primary arm (100) can be configured to receive the main latch pin assembly. A secondary arm (300) can be configured to receive the secondary latch piston.

公开(公告)号：US20210040869A1

公开(公告)日：2021-02-11

申请号：US16978210

申请日：2019-03-06

Applicant: Eaton Intelligent Power Limited

Inventor： Nicola ANDRISANI ,  Jan KINDERMANN ,  Mirko GUASCHINO ,  Yuriy MYSAK

IPC: F01L1/18 ,  F01L13/00

Abstract: An actuation apparatus for actuating a component of a switchable valve train device of an internal combustion engine including: a shaft; an actuation lever mounted on the shaft for pivotal motion of the actuation lever between a first position for actuation of the component and a second position for de-actuation of the component; and a biasing means for urging the actuation lever from the second position towards the first position. In use, the biasing means is biased when an actuation source attempts to cause the actuation lever to be in the first position when the component is non-actuatable, such that the biasing means causes the actuation lever to pivot from the second position to the first position, thereby to actuate the component when the component becomes actuatable again.