VARABLY OPERATED VALVE SYSTEM FOR MULTI-CYLINDER INTERNAL COMBUSTION ENGINE AND CONTROL APPARATUS FOR VARIABLY OPERATED VALVE SYSTEM

摘要

In a variably operated valve system for a multi-cylinder internal combustion engine and a control apparatus for the variably operated valve system, a first valve stop mechanism is configured to switch between a valve operation state in which one of a pair of intake valves from among the pair of intake valves of a part of a plurality of cylinders is operated to be open or closed and a valve stopped state in which the valve open or closure operation of the one of the intake valves is stopped, a second valve stop mechanism is configured to switch between the valve operation state in which the other of the pair of intake valves from among the pair of intake valves of the part of the cylinders is operated to be open or closed and the valve stopped state in which the valve open or closure operation is stopped.

主权项

1. A variably operated valve system for a multi-cylinder internal combustion engine, the internal combustion engine having a plurality of cylinders, comprising:
a pair of intake valves and a pair of or a single exhaust valve disposed for each of the cylinders; a first valve stop mechanism configured to switch between a valve operation state in which one of the pair of intake valves from among the pair of intake valves of a part of the cylinders is operated to be open or closed and a valve stopped state in which the valve open-or-closure operation of the one of the pair of intake valves is stopped; and a second valve stop mechanism configured to switch between the valve operation state in which the other of the pair of intake valves from among the pair of intake valves of the part of the cylinders is operated to be open or closed and the valve stopped state in which the valve open-or-closure operation is stopped, wherein the first valve stop mechanism is configured to be in the valve operation state when a switching energy is supplied and to be in the valve stopped state when the supply of the switching energy is stopped and the second valve stop mechanism is configured to be in the valve stopped state when the switching energy is supplied and to be in the valve operation state when the supply of the switching energy is stopped.