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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
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.
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公开(公告)号：US10300524B2
公开(公告)日：2019-05-28
申请号：US15022516
申请日：2014-09-03
Applicant: Daimler AG
Inventor： Tilmann Roemheld , Michael Wagenplast
Abstract: A casting component, in particular for a combustion engine of a motor vehicle, having at least one cavity formed by a lost casting core, where a porous metal body molded in the cavity is formed by the casting core, is disclosed. Furthermore, the casting core for such a casting component is formed by casting a metal, in particular an aluminum alloy, together with a salt. Finally, a method for the production of such a casting component or of such a casting core is also disclosed.
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公开(公告)号：US09631523B2
公开(公告)日：2017-04-25
申请号：US14383225
申请日：2013-01-29
Applicant: Daimler AG
Inventor： Matthias Eppinger , Kai Lehmann , Marc Maronde , Bernd Neubauer , Tilmann Roemheld , Thomas Stolk , Alexander Von Gaisberg-Helfenberg
CPC classification number: F01L1/34413 , F01L13/0036 , F01L2013/0052 , F02B75/20 , F02B75/22
Abstract: A device for adjusting a motor vehicle valve train includes at least one camshaft with at least four cam elements arranged in an axially displaceable manner. In each case two of the cam elements that are adjacently situated are formed as a cam element group to be switched together.
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公开(公告)号：US20150047588A1
公开(公告)日：2015-02-19
申请号：US14383225
申请日：2013-01-29
Applicant: Daimler AG
Inventor： Matthias Eppinger , Kai Lehmann , Marc Maronde , Bernd Neubauer , Tilmann Roemheld , Thomas Stolk , Alexander Von Gaisberg-Helfenberg
CPC classification number: F01L1/34413 , F01L13/0036 , F01L2013/0052 , F02B75/20 , F02B75/22
Abstract: A device for adjusting a motor vehicle valve train includes at least one camshaft with at least four cam elements arranged in an axially displaceable manner. In each case two of the cam elements that are adjacently situated are formed as a cam element group to be switched together.
Abstract translation: 用于调节机动车辆气门机构的装置包括至少一个具有至少四个凸轮元件的凸轮轴，凸轮轴以可轴向移动的方式布置。 在每种情况下，相邻定位的两个凸轮元件形成为要切换在一起的凸轮元件组。
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