VALVE-MOVING DEVICE FOR ENGINE - HONDA MOTOR CO LTD

Title:

VALVE-MOVING DEVICE FOR ENGINE

Document Type and Number:

WIPO Patent Application WO/2004/109066

Kind Code:

A1

Abstract:

In an engine where a valve lift amount can be continuously varied, a valve-moving device, having a valve lift-varying mechanism, for an engine is capable of increasing and reducing a valve lift amount without changing a valve opening angle and is also capable of reducing a tappet clearance according to reduction in the valve lift amount. This prevents an increase in the ratio of a tappet clearance to a valve lift amount in a low valve lift condition, minimizing effects by variation of a tappet clearance and also reducing a valve seating speed in a low valve lift condition to prevent noise from being produced. Reduction in engine performance in a high valve lift condition caused by variation of a tappet clearance is prevented and a valve seating noise in a low valve lift condition is reduced.

Inventors:

FUJII NORIAKI (JP)
YONEKAWA AKIYUKI (JP)
NAKAMURA KATSUNORI (JP)

Application Number:

PCT/JP2004/007723

Publication Date:

December 16, 2004

Filing Date:

May 28, 2004

Export Citation:

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Assignee:

HONDA MOTOR CO LTD (JP)
FUJII NORIAKI (JP)
YONEKAWA AKIYUKI (JP)
NAKAMURA KATSUNORI (JP)

International Classes:

F01L1/22; F01L1/18; F01L1/26; F01L13/00; (IPC1-7): F01L1/255; F01L1/18; F01L13/00

Foreign References:

JPH1018824A	1998-01-20
JP2003120241A	2003-04-23

Other References: