Reciprocating Combination Engines TRIZ Cases
- Gas-Balanced Cryogenic Expansion Engine With Pressure-Driven Valve Timing
Pressure-driven valve timing and a low-pressure drive stem simplify Brayton cryogenic expansion while improving refrigeration efficiency.
- Gas-Balanced Cryogenic Expansion Engine With Pressure-Driven Piston
Pressure-balanced piston motion and valve timing improve Brayton-cycle cryogenic refrigeration while reducing cam and flywheel complexity.
- Working Fluid Fill Control for Low-Temperature Waste Heat Engines
A mass management fill system stabilizes working fluid pressure so waste heat engines can generate power from low-temperature, low-flow sources.
- Diaphragm Pressure Wave Generator for Clean Cryogenic Drive
Opposed diaphragms generate balanced pressure waves for cryogenic refrigerators while isolating clean gas from costly piston drives.
- Dual-Engine Rotorcraft Layout for Controlled Flight After Failure
Independent engines for the rotor and propeller plus a freewheel mechanism maintain control, autorotation, and safer landing after failure.
- Compound Linear Motion Rotary Actuator Friction Reduction
A compound linear motion and rotary actuator design separates piston and spline shaft functions to eliminate rotational friction at the sealing interface.
- Hybrid Wind Turbine with Solar Thermal and Fuel Cell Backup
A hybrid wind turbine integrates solar thermal energy and fuel cell backup to maintain continuous electrical power generation.