- Patent Title: Valve actuation device for actuating at least two gas exchange valves of an internal combustion engine, method for operating such a valve actuation device and internal combustion engine
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Application No.: US17783553Application Date: 2020-12-03
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Publication No.: US11767773B2Publication Date: 2023-09-26
- Inventor: Matthias Lahr
- Applicant: Daimler Truck AG
- Applicant Address: DE Leinfelden-Echterdingen
- Assignee: Daimler Truck AG
- Current Assignee: Daimler Truck AG
- Current Assignee Address: DE Leinfelden-Echterdingen
- Agency: Crowell & Moring LLP
- Priority: DE 2019008860.3 2019.12.19
- International Application: PCT/EP2020/084548 2020.12.03
- International Announcement: WO2021/122046A 2021.06.24
- Date entered country: 2022-06-08
- Main IPC: F01L1/26
- IPC: F01L1/26 ; F01L1/18 ; F01L13/06 ; F01L13/00 ; F01L1/46

Abstract:
A valve actuation device for actuating a first and second gas exchange valve of an internal combustion engine. A tilting lever is pivotable between a first starting position and a first actuation position and a valve bridge is movable between a second starting position and a second actuation position. A coupling device is switchable between a locking state, in which the valve bridge is movable out of the second starting position into the second actuation position via the coupling device by the tilting lever, and an unlocking state, in which, despite a movement of the tilting lever out of the first starting position into the first actuation position, there is no movement of the valve bridge out of the second starting position into the second actuation position. The coupling device is held on the tilting lever such that the coupling device is pivotable with the tilting lever.
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