公开(公告)号：US10808579B2

公开(公告)日：2020-10-20

申请号：US16661158

申请日：2019-10-23

Applicant: Cummins Inc.

Inventor： Darren Yaoshun Ting ,  David M. Barnes

IPC: F01L1/14 ,  F01L1/24 ,  F01L1/053 ,  F01L1/18 ,  F01L1/26 ,  F01L13/00 ,  F01L13/06 ,  F02D13/02 ,  F02D13/04 ,  F02D13/06

Abstract: For a given cylinder in the engine having two intake valves and two exhaust valves, one of the intake valves is driven by a bucket tappet, while the other intake valve is actuated via a roller finger follower. Similarly, one of the exhaust valves is driven by a bucket tappet, while the other exhaust valve is actuated via a roller finger follower. The intake valves read inputs form an intake camshaft, and the exhaust valves read inputs from an exhaust camshaft.

公开(公告)号：US20200056514A1

公开(公告)日：2020-02-20

申请号：US16661158

申请日：2019-10-23

Applicant: Cummins Inc.

Inventor： Darren Yaoshun Ting ,  David M. Barnes

IPC: F01L1/24 ,  F01L1/14 ,  F01L13/06 ,  F01L13/00 ,  F01L1/053 ,  F01L1/18 ,  F01L1/26 ,  F02D13/04 ,  F02D13/06 ,  F02D13/02

Abstract: For a given cylinder in the engine having two intake valves and two exhaust valves, one of the intake valves is driven by a bucket tappet, while the other intake valve is actuated via a roller finger follower. Similarly, one of the exhaust valves is driven by a bucket tappet, while the other exhaust valve is actuated via a roller finger follower. The intake valves read inputs form an intake camshaft, and the exhaust valves read inputs from an exhaust camshaft.