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 ?
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
This unit features the maker's contrarotating double screw technology, which allows fine-tuning of the intense mixing.
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.