VALVE MECHANISM FOR INTERNAL COMBUSTION ENGINE AND CONTROL DEVICE FOR VALVE MECHANISM

Title:

VALVE MECHANISM FOR INTERNAL COMBUSTION ENGINE AND CONTROL DEVICE FOR VALVE MECHANISM

Document Type and Number:

WIPO Patent Application WO/2013/161060

Kind Code:

A1

Abstract:

A valve mechanism for an internal combustion engine is provided with: a cam (2) that rotates in conjunction with the rotation of a crankshaft; an engine valve (30) that is lifted along with the rotation of the cam (2) and opens; a lift quantity variation mechanism (10) that is disposed between the cam (2) and the engine valve (30) and varies the maximum amount of lift of the engine valve (30); and a lost-motion mechanism (50) that is disposed between the cam (2) and the engine valve (30) and that absorbs the quantity of lift of the engine valve (30) by itself contracting when drive force is received from the cam (2), keeping the engine valve (30) in a closed state. The maximum quantity of contraction of the lost-motion mechanism (50) is set to a size that will absorb the minimum value for the maximum lift quantity of the engine valve (30).

More Like This:

WO/1991/010816	VALVE DRIVING DEVICE
JPS5867912	[Title of the device] An induction-exhaust valve stop device of an internal-combustion engine

Inventors:

TANI MASAAKI (JP)
HOSODA FUMINORI (JP)

Application Number:

PCT/JP2012/061380

Publication Date:

October 31, 2013

Filing Date:

April 27, 2012

Export Citation:

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Assignee:

TOYOTA MOTOR CO LTD (JP)
TANI MASAAKI (JP)
HOSODA FUMINORI (JP)

International Classes:

F01L13/00

Foreign References:

JP2008267332A	2008-11-06
JP2007100585A	2007-04-19
JP2010168980A	2010-08-05
JP2008267332A	2008-11-06
JP2010151147A	2010-07-08

Other References: