The e-Valve system replaces the traditional camshaft system

1. The e-Valve system replaces the traditional camshaft system
> Electromagnetic valve actuation
The e-valve system operates each valve individually and independently of the The total independence of each
crankshaft position and of the other valves. valve allows the deactivation
of some cylinders at low engine
When the upper magnet When the upper magnet’s magnetic field speeds. Therefore, the engine
is activated, the armature is disrupted, the armature plate is pulled runs with half of the cylinders,
plate is held upright. downward by springs. Actuation of the lower with two cylinders instead of four
The valve is in the closed magnet maintains the valve in the opened cylinders in a 4 cylinder engine.
position. position.
Actuator
Magnet
Armature
plate
attached Springs
to the
valve stem
Decompression
Cups
Valve
Compression
The flexible e-Valve system allows
infinitely variable valve timing and valve
opening duration. This control flexibility
increases torque at low engine speeds
and optimizes engine output when
instant power is required.
CharaCTerisTiCs
n Fuel consumption reduced by
15-20 %.
n CO2 emissions reduced by 15-
20 %.
n Low-end torque increased by
15-20 %.
n Optimization of air-fuel mixture.
© VALEO
n Each engine valve operates
independently from the others
and independently from the
piston position.