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1. (WO2017170920) VARIABLE VALVE DEVICE

Pub. No.:    WO/2017/170920    International Application No.:    PCT/JP2017/013384
Publication Date: Fri Oct 06 01:59:59 CEST 2017 International Filing Date: Fri Mar 31 01:59:59 CEST 2017
IPC: F01L 13/00
Applicants: HONDA MOTOR CO., LTD.
本田技研工業株式会社
Inventors: TAKADA, Yoshihiro
▲高▼田 美博
KATAOKA, Dai
片岡 大
KIKUCHI, Kazunori
菊池 一紀
Title: VARIABLE VALVE DEVICE
Abstract:
This variable valve device for an internal combustion engine is provided, on the outer periphery of camshafts (42, 52), with cylindrical cam carriers (43, 53) that can fit by sliding in the axial direction, while being prevented from rotating with respect to one another. The cam carriers (43, 53) have, formed on the outer peripheral surface thereof, a plurality of cam lobes (43A, 43B, 43B, 53B) having different cam profiles, adjoining one another in the axial direction. Cam switching mechanisms (70, 80) that switch between cam lobes that act on engine valves (41, 51) by moving the cam carriers (43, 53) in the axial direction are provided, and at least one of the cam switching mechanisms (70, 80) is provided between the central axis lines (Ci, Ce) of the two camshafts (42,52), and on the crankshaft (10) side of the engine from the central axis lines (Ci, Ce).