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.: US14145446Application Date: 2013-12-31
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Publication No.: US09140147B2Publication Date: 2015-09-22
- Inventor: Soo Hyung Woo , Jei Choon Yang , Young Hong Kwak , Byong Young Choi , Jin Kook Kong , Gee Wook Shin
- 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: KR10-2013-0025208 20130308
- Main IPC: F01L1/34
- IPC: F01L1/34 ; F01L1/047 ; F01L13/00

Abstract:
A multiple variable valve lift apparatus has a simple design that efficiently operates without interference. The apparatus according may include: a camshaft formed in a hollow cylinder shape; a control shaft disposed in the hollow of the camshaft; a cam that rotates together with the camshaft; a cam rod connecting the control shaft with the cam to move together; an operating unit disposed on the exterior circumference of the camshaft to rotate together with the camshaft; an operating unit rod connecting the control shaft with the operating unit such that the control shaft and the operating unit move together; a solenoid selectively connected with the operating unit, and moving the operating unit along an axial direction of the camshaft; and a tappet contacting the cam to transform rotational motion of the cam to rectilinear motion of a valve.
Public/Granted literature
- US20140251250A1 MULTIPLE VARIABLE VALVE LIFT APPARATUS Public/Granted day:2014-09-11
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