New for 1997, the Sea-Doo Challenger 1800 jet boat from Bombardier
features twin 800 Series Rotax marine engines, each of which displaces 782 cc
and delivers 110 hp. A variable-rate oil injection system provides a precise
ratio of oil to fuel, ensuring proper engine lubrication throughout the
performance envelope. The Bombardier axial-flow, single-stage Formula Water Jet
system is designed to work reliably in salt or fresh water. Bronze alloy stator
vanes resist erosion caused by cavitation. Floating couplings with crowned
splines minimize vibration damage to engine and pump. The progressive-pitch
drive impellers are stainless steel and produce improved acceleration over
earlier models, a higher top speed, and less cavitation. Replaceable urethane
wear rings improve impeller life and are easy to maintain. Finally, a
sacrificial zinc anode protects the propulsion system from corrosion.
Engineers at Fuel Cell Energy have found a way to take advantage of a side reaction, unique to their carbonate fuel cell that has nothing to do with energy production, as a potential, cost-effective solution to capturing carbon from fossil fuel power plants.
To get to a trillion sensors in the IoT that we all look forward to, there are many challenges to commercialization that still remain, including interoperability, the lack of standards, and the issue of security, to name a few.
This is part one of an article discussing the University of Washington’s nationally ranked FSAE electric car (eCar) and combustible car (cCar). Stay tuned for part two, tomorrow, which will discuss the four unique PCBs used in both the eCar and cCars.
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