contrarotating

contrarotating

Two or more propellers or gas turbine spools rotating in opposite directions on a common shaft axis and having a common drive.
References in periodicals archive ?
Tenders are invited for Contrarotating Axial Flow Ventilation Fan
We used a Haake Rheomixer fitted out with a "Rheomix 600" internal mixer with two rotors running in a contrarotating way at 50 rpm.
He said of the show: ``I've seen the future and she's wearing contrarotating nipple tassels
A simpler concept with the same advantages would be a Scotch yoke system with two contrarotating cranks.
This unit features the maker's contrarotating double screw technology, which allows fine-tuning of the intense mixing.
A tiny company with only a handful of workers, the firm reflected the interests and dedication of its founder, who wanted to break away from the design traditions of Igor Sikorsky by developing a compact helicopter using two coaxial contrarotating rotor blades.
Dornier showed the Geamos VTOL battlefield surveillance platform with contrarotating rotors, and the CL-289 reconnaissance drone, for which Standard Elektrik Lorenz exhibited a GPS receiver.