Valve operating system in internal combustion engine

Details Valve operating system in internal combustion engine Valve operating system in internal combustion engine

1997-08-29

2000-01-25

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9034, 123 9039, F01L 1300

Patent

active

060167793

ABSTRACT:
A valve operating system in an internal combustion engine is disclosed, wherein the operational characteristic of an engine valve which is an intake valve or an exhaust valve, can be changed in accordance with the operational state of the engine. In the valve operating system, a power transmitting means comprises an inner wheel, an outer wheel surrounding the inner wheel, and a carrier on which a planetary rotor is rotatably carried. The inner wheel is operatively connected to a cam shaft, and the outer wheel is connected to the engine valve. A rotational-amount control device is connected to the carrier for controlling the rotational amount of the carrier in accordance with the operational state of the engine. Thus, the size of the valve operating system can be reduced, and moreover, the operational characteristics of the engine valve can be finely changed.

REFERENCES:
patent: 5003939 (1991-04-01), King
patent: 5018487 (1991-05-01), Shinkai
patent: 5025761 (1991-06-01), Chen
patent: 5148783 (1992-09-01), Shinkai et al.
patent: 5174253 (1992-12-01), Yamazaki et al.
patent: 5327859 (1994-07-01), Pierik et al.
Patent Abstract of Japan, vol. 9, No. 128 (M-384), Jun. 4, 1985 & JP 60 011612 A.

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