This category holds websites with information on internal combustion engines working via rotary geometries and principles, rather than the more common reciprocating geometries, which are found in this subcategory's parent category. Rotary engines can have reciprocating components, within a rotary component (context), but the main impulses (driving forces) are applied in the direction of rotation of the main power component(s), which usually rotate/turn in the direction of the power output/shaft. Rotary engines include, but are not limited to, Wankel engines and their many variants.
To this category, please submit only sites relating to rotary internal combustion engines. Submit sites about the Mazda RX-7 to Recreation/Autos/Makes_and_Models/Mazda/RX-7. Please submit sites about the automotive industry to the most appropriate category within Business/Automotive. Sites about general manufacturing should be submitted to Industrial Goods and Services. Please submit sites primarily selling products online to the most appropriate category within the Shopping branch as they will not be listed here. Before submitting a site, be sure to read the category description. Please submit to an appropriate subcategory, if one is available. Otherwise, submit here. Failure to submit to the most specific appropriate category can delay the consideration of your submission. For more information, please refer to the DMOZ Science FAQ.