Hydraulic actuation
Hydraulic actuation is the most common method of variable valvetrain actuation. Engine oil pressure is regulated with an oil control valve (OCV).
Hydraulic Cylinder Deactivation:
- Hydraulically actuated by oil pressure regulation with OCV (Oil Control Valve)
- Pre-loading compliance spring enables staging of switching event on base circle
- High speed switching capable
- Precisely controlled mechanical gap/valve lift
- Low weight, compact design
- Flexible installation on intake or exhaust side
| Mode | Engine Speed (rpm) | Oil Temperature (0C) | OCV Signal | Switching Port Pressure (bar) | Latch Position |
|---|---|---|---|---|---|
| Standard Lift | 0 to 7200 | -40 to 150 | De-Enegized | 2 to 4 | extended (engaged with inner arm) |
| CDA (No Lift) | Idle to 3500 | -20 | Energized | 20 | Reactivated (disengaged with Inner arm) |
Video gallery
Learn more about hydraulic actuation by watching this video.
Let us design a system solution for you
Put our decades of engine air management expertise to work with a custom solution designed to your exact specifications and requirements.
