1An engine that produces rotary motion or that has a rotating part or parts, in particular.
- The motor is one of the two known molecular rotary engines that derive their energy from a transmembrane ion motive gradient.
- ‘Rotational motion is at the heart of many conventional machines, such as rotary engines, screws and clocks,’ said Professor Ozin.
- In 1782, Watt developed a rotary engine that could turn a shaft and drive machinery to power the machines to spin and weave cotton cloth.
1.1An aircraft engine with a fixed crankshaft around which cylinders and propeller rotate.
- A couple of the Sopwiths took to the sky and it was rather amazing to watch these slow, graceful aircraft flying - their rotary engines providing a most unusual sound track.
- He loaded one two extra 50-hp Gnome rotary engines, three propellers, extra landing wheels, nuts, bolts, turnbuckles, wires, fabric, and everything else needed to rebuild a badly damaged aircraft.
- These engines differed from the usual rotary engines in that the engine rotated clockwise as seen from the front and the propeller rotated counter-clockwise.
1.2A Wankel engine.
- Mazda may have been nothing more than a division of Ford for the past 25 years, but they're the only ones to have persevered with Wankel rotary engines.
- After an absence of several model years, Canadian auto buyers will once again have the opportunity to buy a vehicle with a Wankel rotary engine.
- Power's biggest break came in 1973, when Mazda Motor Corp. started hyping its new Wankel rotary engine.
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