Patent ID: 8794202

Claim:
A valve timing control apparatus comprising: a driving-side rotation member rotating in synchronization with a crankshaft of an internal combustion engine; a driven-side rotation member arranged coaxial with the driving-side rotation member and rotating in synchronization with a camshaft for opening and closing a valve of the internal combustion engine; a fluid chamber formed by the driving-side rotation member and the driven-side rotation member; an advanced angle chamber and a retarded angle chamber formed by divided portions of the fluid chamber divided by a partition member that is provided at least one of the driving-side rotation member and the driven-side rotation member; a fluid control mechanism controlling supply and discharge of fluid relative to the fluid chamber; a first intermediate lock mechanism configured to selectively lock a relative rotation phase of the driven-side rotation member relative to the driving-side rotation member at a first intermediate lock phase between a most advanced angle phase and a most retarded angle phase and release a locked state of the relative rotation phase at the first intermediate lock phase; a most retarded angle lock mechanism configured to selectively lock the relative rotation phase at a most retarded angle lock phase and release a locked state of the relative rotation phase at the most retarded angle lock phase; and a second intermediate lock mechanism configured to selectively lock the relative rotation phase at a second intermediate lock phase between the first intermediate lock phase and the most retarded angle lock phase and release a locked state of the relative rotation phase at the second intermediate lock phase.