Flow-through generator with magnetic coupling for pipeline power generation

A pipeline-integrated power generation system comprising:

• a pipeline carrying pressurized fluid flow;
• a flow restriction device positioned in said pipeline creating a pressure differential with higher pressure upstream and lower pressure downstream;
• a branch line to connect pipeline upstream of the flow restriction device to an inlet port of a flow-through generator;
• a return line to connect an outlet port of the flow-through generator to pipeline downstream of the flow restriction device;
• the flow-through generator comprising:
• a sealed housing defining a sealed portion containing pressurized fluid and an unsealed portion at atmospheric pressure;
• a non-magnetic generator wall separating the sealed portion from the unsealed portion;
• a turbine wheel positioned within the sealed portion;
• a shaft mechanically coupled to a turbine wheel;
• permanent magnets coupled to the shaft and positioned within the sealed portion;
• wherein responsive to receiving pressurized fluid flow in the sealed portion, the turbine wheel rotates and power is generated across the external windings, wherein contactless power transfer occurs through magnetic coupling between the permanent magnets and the external windings across the generator wall, wherein the external windings are positioned within the unsealed portion adjacent to the generator.