VALVE ACTUATOR FOR INTERNAL COMBUSTION ENGINE

Title:

VALVE ACTUATOR FOR INTERNAL COMBUSTION ENGINE

Document Type and Number:

WIPO Patent Application WO/2011/125194

Kind Code:

A1

Abstract:

Provided is a valve actuator for an internal combustion engine. The valve actuator comprises a biasing means for biasing a transmission member that transmits the actuating force of a cam to a valve. A support part of the biasing means can be manufactured more easily, and increases in the mass of the internal combustion engine can be restricted by using the valve actuator. The valve actuator comprises a first rocker arm (18), which is disposed between a main cam (14) and a valve (26), for transmitting the actuating force of the main cam (14) to the valve (26). The valve actuator comprises a lost motion mechanism (60) for biasing the first rocker arm (18) in one direction. The valve actuator comprises a holding member (68) for holding the lost motion mechanism (60). The lost motion mechanism (60) is fitted to a spark plug tube (66) with the holding member (68) interposed.

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Inventors:

KAWATA AKIHIKO (JP)
KIDOOKA AKIO (JP)

Application Number:

PCT/JP2010/056332

Publication Date:

October 13, 2011

Filing Date:

April 07, 2010

Export Citation:

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Assignee:

TOYOTA MOTOR CO LTD (JP)
KAWATA AKIHIKO (JP)
KIDOOKA AKIO (JP)

International Classes:

F01L13/00

Foreign References:

JPH0246006U	1990-03-29
JP2000087719A	2000-03-28
JP2002242629A	2002-08-28
JP2000240418A	2000-09-05
JP2007327378A	2007-12-20
JPH06280522A	1994-10-04

Other References: