Cranks TRIZ Cases
- Variable Compression Crankshaft Mechanism for Adaptive Engine Ratios
An eccentric gear-coupled crankshaft shifts engine position to vary compression ratio, improving fuel use and emissions across conditions.
- Resin Crankshaft Rotary Body for Low-Deformation Chamber Filling
Segmented resin plates and filler blocks cut crank chamber empty space while limiting high-speed deformation without metal cups or bands.
- Variable Compression Eccentric Layout Without Weakening Crankshaft Housing
Parallel pickup shafts and a nested eccentric layout vary compression ratio while preserving crankshaft housing and bearing-wall stability.
- Variable-Compression Engine Eccentric Linkage for Uniform Cylinders
Opposed-rotating eccentrics synchronize control arms across cylinder rows to keep compression ratio uniform and extend expansion stroke.
- Variable Compression Eccentric Layout Without Bearing Wall Weakening
A nested eccentric and dual takeoff shaft layout adjusts engine compression ratio inside the crankcase without thinning bearing walls.