公开(公告)号：US20210388741A1

公开(公告)日：2021-12-16

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

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：US20160228940A1

公开(公告)日：2016-08-11

申请号：US15022516

申请日：2014-09-03

Applicant: DAIMLER AG

Inventor： Tilmann ROEMHELD ,  Michael WAGENPLAST

IPC: B22C9/06 ,  B22D19/14 ,  B22D19/00 ,  B22C9/10 ,  B22D15/02

CPC classification number: B22C9/06 ,  B22C9/105 ,  B22C9/108 ,  B22D15/02 ,  B22D19/0072 ,  B22D19/0081 ,  B22D19/14

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.

Abstract translation: 公开了一种铸造部件，特别是用于机动车辆的内燃机，其具有至少一个由失去的铸铁芯形成的空腔，其中通过铸造芯形成在空腔中模制的多孔金属体。 此外，用于这种铸造部件的铸造芯通过将盐，特别是铝合金浇铸而形成。 最后，还公开了一种用于生产这种铸件或这种铸芯的方法。