Two piston V-type Stirling engine

Two stage stirling engine

Two-cycle hot-gas engine

Two-tank working gas storage system for heat engine

Two-way shape memory alloy heat engine

Uncoupled, thermal-compressor, gas-turbine engine

Unilateral thermal buckle beam actuator

Unilateral thermal buckle-beam actuator

Unitary heat engine/heat pump system

Unitized spring device and master cylinder including such...

Utility device having hydraulic circuit for multi-function...

Utilization of quantum wires in MEMS actuators

Vapor stirling heat machine

Variable cycle stirling engine and gas leakage control system th

Variable density heat engine

Variable displacement and dwell drive for stirling engine

Variable gas spring for matching power output from FPSE to load

Vertically oscillating heat engine

Vibration absorber for a free piston Stirling engine

Vibration-reducing apparatus