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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.
This category is for Diesel cycle internal combustion engines, not Otto cycle engines. Diesel engines mostly use reciprocating piston layouts, but rotary types have been designed, built, and run. All two- and four-cycle engines can use Diesel or Otto cycles, and the four stages of operation and combustion (compression, ignition, expansion, exhaust) occur sequentially in time, in a common spatial area and part of the engine, a combustion chamber, usually via a piston. In Diesel engines, compression is higher and causes auto ignition, so Diesels are also called compression ignition engines, while Ottos are called spark ignition engines.
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.
This category is for gas turbine engines, not mixed phase (steam) or liquid (hydroelectric) turbines. All turbines are pure rotary systems. In gas turbines, the four stages of operation and combustion (compression, ignition, expansion, exhaust) occur concurrently, in a spatial sequence of different, specialized areas and parts of the engine. This is unlike Otto and Diesel cycle engines, where the four stages of operation occur in a time sequence (strokes).
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.
This category holds websites providing information on original work in development of new ideas in Internal Combustion engines. Research broadly includes three classes of sites: 1. Institutions, academic (colleges, universities), and non-academic (scientific laboratories). 2. Product manufacturers, including automobile manufacturer's sites on new and future product development. 3. Individual inventors and researchers.
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.
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.
This category is for two-cycle internal combustion engines, not four-cycle engines.
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.
This category is for two-cycle internal combustion engines, not four-cycle engines. Two-cycle engines mostly use reciprocating piston layouts, but rotary types have been designed, built, and run. All two- and four-cycle engines can use Otto or Diesel cycles, and the four stages of operation and combustion (compression, ignition, expansion, exhaust) occur sequentially in time, in a common spatial area and part of the engine, a combustion chamber, usually via a piston. But in two-cycle engines, these stages occur in two cycles, not four: 1) a combined compression/ignition cycle, and then, 2) a combined expansion/exhaust cycle.
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Last update: Tuesday, August 14, 2012 5:45:03 AM EDT - edit