Main features of 2st generation electrical valve train (EVT)

.

New concept based on constant air gap and permanent magnets

  - patented segment motor technology -

Main features:

•

•••

Valve lift: 0-11 mm fully variable

Max. opening force: 900 N

•

Necessary Supply voltage:

42V+ (Intake + Exhaust valve)

12 V (Intake only)

•Power requirement at 6000/min:

Exhaust: 100- 150 W/ valve

Intake: 40 - 100 W/ valve

Power requirement at 2000/min

5 W/ valve

•

Transition time (0-11mm lift) :

< 2,5 ms

•Control accuracy:

Ø

 impact speed < 0,05 m/s at 600/min

Ø crank angle accuracy:

• < 0.2°CA (600 rpm) 
• < 1°CA/6000 rpm

• Modular concept for OTTO and DIESEL

Weight: < 1kg/ valve

Actual dimensions: L44xW60xH85

System was published during the 27th International Vienna Engine Symposium 27-28 April 2006