公开(公告)号：US11761356B2

公开(公告)日：2023-09-19

申请号：US17270394

申请日：2019-08-08

Applicant: Daimler AG

Inventor： Johannes Ernst ,  Franz Huber ,  Jochen Hufendiek ,  Christian Lorenz ,  Tilmann Roemheld ,  Frank Strauss ,  Ruediger Weiss ,  Hardy Weymann

IPC: F01L1/24 ,  F01L1/047 ,  F01L1/08 ,  F01L13/08

CPC classification number: F01L1/24 ,  F01L1/047 ,  F01L1/08 ,  F01L13/08

Abstract: An internal combustion engine for a motor vehicle includes a crankshaft, a camshaft, a cylinder, a piston movably disposed in the cylinder and coupled to the crankshaft for driving the crankshaft, a first gas exchange valve which is assigned to the cylinder, a first valve clearance compensation device, where via the first valve clearance compensation device the first gas exchange valve is displaceable between a first open position and a first closed position by a first cam of the camshaft, and a control unit. The control unit is configured to align the camshaft such that the first valve clearance compensation device is pressure-loaded in the idle state of the crankshaft by a plateau area assigned to the first cam to hold the first gas exchange valve in the first open position.

公开(公告)号：US11280279B2

公开(公告)日：2022-03-22

申请号：US16765821

申请日：2018-11-16

Applicant: Daimler AG

Inventor： Franz Huber ,  Christian Lorenz ,  Jochen Hufendiek ,  Johannes Ernst

IPC: F02D41/00 ,  F02D41/06 ,  F01L9/18 ,  F01L1/34 ,  F02D13/02

Abstract: An internal combustion engine for a motor vehicle includes a combustion chamber with a gas exchange valve which is movable between an open position and a first closed position. The gas exchange valve is movable on its path from the open position in a direction of the first closed position into an intermediate position located between the open position and the first closed position and is holdable in the intermediate position at least during a part of a compression cycle of the combustion chamber following the open position of the gas exchange valve and is movable into a second closed position following the intermediate position. The part comprises more than a half of the compression cycle and less than a whole of the compression cycle. The gas exchange valve is an inlet valve via which the combustion chamber is supplyable at least with air.

公开(公告)号：US11236687B2

公开(公告)日：2022-02-01

申请号：US16765821

申请日：2018-11-16

Applicant: Daimler AG

Inventor： Franz Huber ,  Christian Lorenz ,  Jochen Hufendiek ,  Johannes Ernst

IPC: F02D41/00 ,  F02D41/06 ,  F01L9/18 ,  F01L1/34 ,  F02D13/02

Abstract: An internal combustion engine for a motor vehicle includes a combustion chamber with a gas exchange valve which is movable between an open position and a first closed position. The gas exchange valve is movable on its path from the open position in a direction of the first closed position into an intermediate position located between the open position and the first closed position and is holdable in the intermediate position at least during a part of a compression cycle of the combustion chamber following the open position of the gas exchange valve and is movable into a second closed position following the intermediate position. The part comprises more than a half of the compression cycle and less than a whole of the compression cycle. The gas exchange valve is an inlet valve via which the combustion chamber is supplyable at least with air.