Abstract: A fluid is circulated through a region of single magnetic polarity within a complex magnetic field and with increased exposure time as compared to prior art devices. The fluid travels through a coil of tubing arranged between two magnetic fields that interact to form the region of single polarity. In a preferred embodiment, the fields are generated by two sets of magnets, one on the inside of the coil and one on the outside of the coil. The magnets are arranged such that like poles of all the magnets face the tubing in the coil, creating the region of single polarity. Treating fuel or recirculated exhaust gases prior to burning in internal combustion engines results in improved engine output characteristics.

Abstract: A magnetic conditioner is arranged with a plurality of magnets surounding a central axis of a conduit. The magnets include like magnetic poles facing the conduit for concentrating magnetic energy within the conduit. The magnetic poles are also arranged in a helical pattern along the length of the conduit to expose fluid flowing through the conduit to a more uniform amount of magnetic field energy. The magnetic conditioner is also assembled as a part of an emission control system that includes a coalescing filter and a positive crankcase ventilation valve.