Runners of francis type for turbines and pumps
Salt water to energy and fresh water
Schenkelberg system
Scroll case for turbines
Sea wave energy converter
Sea wave-power generation device
Sea-water hydro-barrage
Seal for centrifugal machines
Sealing in a hydraulic turbine unit
Sealing means between rotor and housing in a water turbine
Sealing system for a hydraulic machine
Seals for hydraulic machines
Seals for turbines and pumps
Seating ring for runner vanes of turbines and pumps
Self-adjusting contra-rotating axial flow pumps and turbines
Self-propelled energy generator
Self-sufficient motor
Self-trimming oscillating wing system
Semi-spiral scroll case
Shaft connections, more particularly for hydro-electrical units