Invention Grant
- Patent Title: Spring arrangement for a variable valve drive of an internal combustion engine
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Application No.: US14899560Application Date: 2014-04-04
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Publication No.: US09784142B2Publication Date: 2017-10-10
- Inventor: Karsten Grimm , Martin Nowak , Christoph Sadowski , Sabine Siebrandt
- Applicant: PIERBURG GMBH
- Applicant Address: DE Neuss
- Assignee: PIERBURG GMBH
- Current Assignee: PIERBURG GMBH
- Current Assignee Address: DE Neuss
- Agent Norman B. Thot
- Priority: DE102013106646 20130625
- International Application: PCT/EP2014/056799 WO 20140404
- International Announcement: WO2014/206591 WO 20141231
- Main IPC: F01L1/344
- IPC: F01L1/344 ; F01L13/00 ; F01L1/14 ; F01L1/18

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.
Public/Granted literature
- US20160146066A1 SPRING ARRANGEMENT FOR A VARIABLE VALVE DRIVE OF AN INTERNAL COMBUSTION ENGINE Public/Granted day:2016-05-26
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