Invention Grant
- Patent Title: Multiple variable valve lift apparatus
- Patent Title (中): 多可变气门举升装置
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Application No.: US14107634Application Date: 2013-12-16
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Publication No.: US09010290B2Publication Date: 2015-04-21
- Inventor: Byong Young Choi , Ki Wook Shin , Soo Hyung Woo , Jin Kook Kong
- Applicant: Hyundai Motor Company
- Applicant Address: KR Seoul
- Assignee: Hyundai Motor Company
- Current Assignee: Hyundai Motor Company
- Current Assignee Address: KR Seoul
- Agency: Morgan, Lewis & Bockius LLP
- Priority: KR10-2013-0101696 20130827
- Main IPC: F01L1/34
- IPC: F01L1/34 ; F01L13/00 ; F02D13/02

Abstract:
A multiple variable valve lift apparatus may include a camshaft rotating by drive of an engine, at least two cam portions slidably disposed on the camshaft and rotatable together with the camshaft, and forming a high cam and a low cam, a valve opening/closing unit operated by one of the high or low cams, at least two operating unit movable along the camshaft to move the at least two cam portions along the camshaft, a control portion selectively moving the operating unit along the camshaft, a pin disposed at the control portion, and a guide rail formed in a groove shape on an exterior circumference of the operating unit such that the pin is insert therein and guiding relative movement of the pin according to rotation of the camshaft and the operating unit such that the operating unit is moved along an axial direction of the camshaft by the pin.
Public/Granted literature
- US20150059675A1 MULTIPLE VARIABLE VALVE LIFT APPARATUS Public/Granted day:2015-03-05
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