公开(公告)号：US10669900B2

公开(公告)日：2020-06-02

申请号：US16318343

申请日：2017-07-20

Applicant: AVL LIST GMBH

Inventor： Andreas Zurk ,  Martin Klampfer ,  Gernot Hirschl

IPC: F01L3/20 ,  F01L13/06 ,  F01L1/08 ,  F01L1/18 ,  F02D13/04 ,  F01L13/00 ,  F02D13/02 ,  F01L1/344 ,  F01L1/26 ,  F01L3/22 ,  F16K1/54 ,  F01L3/00

Abstract: Aspects of the present disclosure are directed to an internal combustion engine having a valve actuation device and at least one first exhaust valve and one second exhaust valve per cylinder. The first and second exhaust valves may be actuated together in at least one operating area of the internal combustion engine, via an exhaust valve bridge and a first valve lifter, by a first cam lobe of a first exhaust cam arranged on a camshaft. The camshaft having a second exhaust cam with at least one additional cam lobe and at least one second cam lobe A transmission device being arranged in the functional path between the second exhaust cam and the second exhaust valve, the transmission device allowing an idle stroke to be activated or deactivated. The first exhaust cam and the second exhaust cam are configured and arranged to be rotatable relative to one another.

公开(公告)号：US20190242278A1

公开(公告)日：2019-08-08

申请号：US16318343

申请日：2017-07-20

Applicant: AVL LIST GMBH

Inventor： Andreas Zurk ,  Martin Klampfer ,  Gernot Hirschl

IPC: F01L3/20 ,  F02D13/04 ,  F01L3/22 ,  F16K1/54 ,  F01L13/06

CPC classification number: F01L3/20 ,  F01L1/08 ,  F01L1/181 ,  F01L1/267 ,  F01L1/344 ,  F01L3/22 ,  F01L13/0047 ,  F01L13/06 ,  F01L2003/11 ,  F01L2003/25 ,  F02D13/0246 ,  F02D13/04 ,  F16K1/54

Abstract: Aspects of the present disclosure are directed to an internal combustion engine having a valve actuation device and at least one first exhaust valve and one second exhaust valve per cylinder. The first and second exhaust valves may be actuated together in at least one operating area of the internal combustion engine, via an exhaust valve bridge and a first valve lifter, by a first cam lobe of a first exhaust cam arranged on a camshaft. The camshaft having a second exhaust cam with at least one additional cam lobe and at least one second cam lobe A transmission device being arranged in the functional path between the second exhaust cam and the second exhaust valve, the transmission device allowing an idle stroke to be activated or deactivated. The first exhaust cam and the second exhaust cam are configured and arranged to be rotatable relative to one another.