公开(公告)号：US20210310379A1

公开(公告)日：2021-10-07

申请号：US17262819

申请日：2019-07-26

Applicant: Eaton Intelligent Power Limited

Inventor： Mark Van Wingerden ,  Ryan Krieger

IPC: F01L1/18 ,  F01L1/46 ,  F01L13/00 ,  F01L9/10

Abstract: A rocker arm can comprise a cam arm, a valve arm, a lost motion spring, and a pair of deactivatable latches configured to impede travel of the cam arm with respect to the lost motion spring and configured to enable the cam arm to collapse the lost motion spring. The cam arm can comprise a cam interface, a spring pressing area, a cam arm body, and a pivot axle connection. The valve arm can comprise a valve arm body, a rocker shaft bore, a latch socket, and lost motion spring mount. A pivot axle can connect the valve arm body to the cam arm body. Alternatively, a latch socket in a valve arm neck comprises a latch assembly whereby a deactivatable latch is configured to impede motion of the cam arm and to collapse so the cam arm can collapse the lost motion spring.

公开(公告)号：US20210047947A1

公开(公告)日：2021-02-18

申请号：US16762655

申请日：2018-11-12

Applicant: Eaton Intelligent Power Limited

Inventor： Mark Van Wingerden ,  Kalen R. Vos ,  James E. McCarthy, JR.

IPC: F01L1/18 ,  F01L13/00 ,  F01L1/26

Abstract: A rocker arm assembly comprises a first arm, a second arm, and a latch assembly. The first arm comprises a main cam interface end, a body comprising a shaft port configured to pivot on a rocker shaft, and a valve end configured to lift and lower when the main cam interface end is acted on by a cam lobe. The second arm is overlaid on the first arm. The second arm comprises a secondary cam interface end, a latch lip end, and a shell connecting the latch lip end and the secondary cam interface end. The shell is configured to pivot relative to the first arm. The latch assembly is mounted to the body. The latch assembly is configured to selectively latch and unlatch the first arm with respect to the second arm.