公开(公告)号：US20160146066A1

公开(公告)日：2016-05-26

申请号：US14899560

申请日：2014-04-04

Applicant: PIERBURG GMBH

Inventor： KARSTEN GRIMM ,  MARTIN NOWAK ,  CHRISTOPH SADOWSKI ,  SABINE SIEBRANDT

IPC: F01L1/344 ,  F01L1/14

CPC classification number: F01L1/344 ,  F01L1/14 ,  F01L1/185 ,  F01L13/0021 ,  F01L13/0063 ,  F01L2013/0068 ,  F01L2105/00

Abstract: A spring arrangement for a variable valve drive of an internal combustion engine includes an intermediate lever, a control shaft, a control shaft roller, a working cam contour, and a spring element. The intermediate lever comprises a contact surface, a camshaft roller which bears against a camshaft, and a slot roller which bears against a slotted guide. The control shaft roller is arranged on the intermediate lever to face away from the slotted guide. The control shaft roller bears against the control shaft. The working cam contour is formed at an end of the intermediate lever opposite the camshaft roller. The spring element comprises a force component on the contact surface in the direction of the camshaft and the slotted guide, and an end leg. The spring element loads the camshaft roller against the camshaft and the slot roller against the slotted guide. The end leg bears against the contact surface.

Abstract translation: 用于内燃机的可变气门驱动器的弹簧装置包括中间杆，控制轴，控制轴辊，加工凸轮轮廓和弹簧元件。 中间杆包括接触表面，承受凸轮轴的凸轮轴辊和承载在槽形引导件上的槽辊。 控制轴辊布置在中间杆上以远离开槽引导件。 控制轴滚子靠在控制轴上。 工作凸轮轮廓形成在与凸轮轴辊相对的中间杆的端部。 弹簧元件包括在凸轮轴和开槽导向器的方向上的接触表面上的力分量和端部腿。 弹簧元件将凸轮轴辊抵靠凸轮轴和槽辊抵靠开槽导向器。 端腿靠在接触面上。

公开(公告)号：US20170198614A1

公开(公告)日：2017-07-13

申请号：US15320753

申请日：2015-04-30

Applicant: PIERBURG GMBH

Inventor： MICHAEL BREUER ,  KARSTEN GRIMM ,  STEPHAN SCHMITT ,  SABINE SIEBRANDT

IPC: F01L13/00 ,  F01L1/047 ,  F01L1/18

CPC classification number: F01L13/0063 ,  F01L1/047 ,  F01L1/18 ,  F01L1/185 ,  F01L2013/0068 ,  F01L2105/00

Abstract: A valve drive includes a transfer arrangement with an intermediate lever arrangement having a first roller element and an intermediate lever, and a drag lever arrangement having a drag lever. The first roller element is connected to a circumferential contour of a camshaft. The intermediate lever includes a second roller element and a working curve connected to the drag lever. A slotted guide is provided for the intermediate lever arrangement which is engaged by a guide roller element. A torsion spring element with first and second ends engages the intermediate lever arrangement. The first end rests on the cylinder housing portion. The second end acts on a counter bearing rigidly connected with the intermediate lever. The first and second roller element axes are arranged to introduce a force into the intermediate lever which presses the guide roller element against the slotted guide and the first roller element against the camshaft.