A variable-pitch wind-turbine blade adjusts its angle with changing windspeed for higher efficiencies over a greater range of wind speeds and helps prevent turbine blade runaways and other dangerous conditions.
An engine being developed at Ecomotors, Allen Park, Mich., is based on an opposed-piston opposed-cylinder (OPOC) concept updated with the latest computer modeling and thermodynamic analysis
Next to the economic recovery taking hold in most markets, two topics dominate business conversations: the environment and energy. Also, the current debate about sources of energy
Four types of ready-to-mount hydraulic integrated circuits (HICs) that fit seven low-speed, high-torque motors are said to speed production of off-highway mobile machinery.
Hale, Boeing’s High Altitude Long Endurance unmanned aircraft, recently completed ground testing of its hydrogen fueled engine which was developed by the Ford Motor Co.
A company building relatively low-cost, steel-tube towers for wind turbines was able to lower the price of construction by 30%, but was having difficulty with large, transient wind loads shaking the structure.
A backpack-sized unmanned aerial vehicle from Honeywell will likely use a 60-cc engine designed and built by RCV Engines Ltd., Brighton, U.K. (rcvengines.com).
New York City's Department of Sanitation and Baltimore's Bureau of Solid Waste will test hydrostatic regenerative brakes from Bosch Rexroth, Rochester Hills, Mich.
