
OPERATION
Variable Compression Ratio and Charge
Operation of the prime mover systemÂ
COMPONENTS
- Control piston
- Initial burn volume (IBV)
Alters to change CR
Volume; IBV to 0 to IBV - Spark plug
- Fuel injector
- Main chamber
- Power Piston
- Intake passage (from pump)
- Exhaust passage

VCRC™ SOLUTION
I. Initial compression
Air only
i. control piston moves to set point
ii. Volume moves from 0 to IBV
II. Final Compression
@ 90° BTDC, fuel injected
Fuel mixes with air stream
III. Initial combustion in IBV
iV. Secondary burn in MC
> 30% lean
HC and CO oxodozed
V. Expansion
Power flows to shaft in III and IV
IBV moves to 0 volume
VI. Scavenge
Air quality regulated
Exhaust temperature > 200
Where others stop and say, “It won’t work.” we are just beginning.
We continue to analyze the complete system and find the solution to make it work.
Ken Cowans Enterprises Office: 714 529 3420 Fax: 714 256 9004 Email: kenc@cowansent.com