Changeable valve device of internal combustion engine

Abstract

The invention provides a changeable valve device of an internal combustion engine. A plurality of rocker arms are respectively provided with a guide hole. The guide holes can have connecting pins embedded in a sliding way. The connecting pins can axially move between a connecting position connecting the adjacent rocker arms and a connection releasing position releasing the connection and abut on one another. Pressing force can be exerted on the connecting pins through an idle running mechanism from an actuator. Meanwhile, miniaturization of the actuator can be achieved. At least a part of the idle running mechanism (52) equipped between the actuator (50) axially exerting pressing force on the multiple connecting pins (47, 48) and the multiple connecting pins (47, 48) is coaxially accommodated in one guide hole (45). The guide hole (45) is equipped on at least one end of a rocker arm (29) of the multiple rocker arms (29, 30).

Description

technical field [0001] The present invention relates to a variable variable valve device of an internal combustion engine. Guide holes are respectively provided on a plurality of rocker arms arranged adjacent to each other. The guide holes are coaxially connected when the internal combustion engine valves driven by the rocker arms are in a closed state. Connecting pins that abut against each other are slidably fitted into the guide holes, respectively, and the connecting pins are axially movable between a connecting position for connecting adjacent rocker arms and a disconnecting position for releasing the connection. Background technique [0002] Conventionally, there is known a variable valve device for an internal combustion engine in which a plurality of connecting pins abutting against each other are slidably fitted into guide holes of a plurality of rocker arms, and the connecting pins on one end side of the arrangement direction of the above-mentioned connecting pins a...

AI Technical Summary

Problems solved by technology

However, since a plurality of movable parts are installed between the idler mechanism arranged outside the rocker arm and the connecting pin slidably fitted in the guide hole of the rocker arm, the idler mechanism needs to send out a command to drive the movable member at high speed. The spring force also increases the size of the solenoid that applies the pressing force to the idling mechanism.

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