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  2. Small engine - Wikipedia

    en.wikipedia.org/wiki/Small_engine

    Briggs & Stratton Vanguard V-twin engine in a portable generator. A small engine is the general term for a wide range of small-displacement, low-powered internal combustion engines used to power lawn mowers, generators, concrete mixers and many other machines that require independent power sources. [1]

  3. Engine configuration - Wikipedia

    en.wikipedia.org/wiki/Engine_configuration

    The crankshaft configuration varies amongst opposed-engine designs. One layout has a flat/boxer engine at its center and adds an additional opposed-piston to each end so there are two pistons per cylinder on each side. An X engine is essentially two V engines joined by a common crankshaft. A majority of these were existing V-12 engines ...

  4. Wheel arrangement - Wikipedia

    en.wikipedia.org/wiki/Wheel_arrangement

    Especially in steam days, wheel arrangement was an important attribute of a locomotive because there were many different types of layout adopted, each wheel being optimised for a different use (often with only some being actually "driven"). Modern diesel and electric locomotives are much more uniform, usually with all axles driven.

  5. Engine test stand - Wikipedia

    en.wikipedia.org/wiki/Engine_test_stand

    An engine test stand is a facility used to develop, characterize and test engines. The facility, often offered as a product to automotive OEMs , allows engine operation in different operating regimes and offers measurement of several physical variables associated with the engine operation.

  6. Ancient Chinese wooden architecture - Wikipedia

    en.wikipedia.org/wiki/Ancient_Chinese_wooden...

    As the villages and towns grew they adhered to symmetrical shapes. Symmetry was also important in the layout of homes, altars, and villages. Dougong is a unique structural element of interlocking wooden brackets, one of the most important elements in traditional Chinese architecture. It first appeared in buildings of the last centuries BC and ...

  7. Juan Soto reportedly has multiple offers of at least $600 ...

    www.aol.com/sports/juan-soto-reportedly-multiple...

    As for what kind of money Soto could bring in, The Athletic reports he has offers of at least $600 million from all of his remaining contenders. The teams currently known to be in on him are still ...

  8. US railroad Amtrak sets passenger record in 2024 - AOL

    www.aol.com/news/us-railroad-amtrak-sets...

    U.S. passenger railroad Amtrak said on Tuesday ridership topped 2019 pre-COVID levels for the first time in 2024 and reached a record high even with less capacity. Amtrak reported an adjusted ...

  9. Desmodromic valve - Wikipedia

    en.wikipedia.org/wiki/Desmodromic_valve

    A desmodromic valve is a reciprocating engine poppet valve that is positively closed by a cam and leverage system, rather than by a more conventional spring. The valves in a typical four-stroke engine allow the air/fuel mixture into the cylinder at the beginning of the cycle and exhaust spent gases at the end of the cycle.