Valve open/close timing control device

摘要

Provided is a valve open/close timing control device including, a drive-side rotating body, a driven-side rotating body, a fluid pressure chamber, a partition portion, a fluid control valve part, a first locking mechanism which is capable of restraining a relative rotational phase of the driven-side rotating body relative to the drive-side rotating body at a first predetermined phase between a most retarded angle phase and a most advanced angle phase, and a second locking mechanism which is capable of restraining the relative rotational phase at a second predetermined phase on a more retarded angle side than the first predetermined phase, in which the relative rotational phase is changed to the first predetermined phase when a shift lever position is changed to a parking range.

主权项

1. A valve open/close timing control device comprising:
a drive-side rotating body which is rotatable synchronously with a crankshaft of an internal combustion engine; a driven-side rotating body which is arranged coaxially with the drive-side rotating body and in a rotatable manner relative to the drive-side rotating body, and is integrally rotatable with a camshaft for opening or closing a valve of the internal combustion engine; a fluid pressure chamber which is formed on either one of the drive-side rotating body and the driven-side rotating body; a partition portion mounted on the other of the drive-side rotating body and the driven-side rotating body so as to partition the fluid pressure chamber into an advanced angle chamber and a retarded angle chamber; a fluid control valve part which controls the supply and the discharge of a fluid to and from the advanced angle chamber or the retarded angle chamber; a first locking mechanism which restrains a relative rotational phase of the driven-side rotating body relative to the drive-side rotating body at a first predetermined phase between a most retarded angle phase and a most advanced angle phase; and a second locking mechanism which restrains the relative rotational phase at a second predetermined phase on a more retarded angle side than the first predetermined phase, wherein the relative rotational phase is changed to the first predetermined phase when a shift lever position is changed to a parking range.