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ibrahim Tiryaki

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ibrahim Tiryaki

değişken subap zamanlamasının mucidide japonlar değilmiydi

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Ahmet İhsan Akşen
ibrahim Tiryaki yazdı:

değişken subap zamanlamasının mucidide japonlar değilmiydi

 

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Alıntı

The desirability of being able to vary the valve opening duration to match an engine’s rotational speed first became apparent in the 1920s when maximum allowable RPM limits were generally starting to rise. Until about this time an engine’s idle RPM and its operating RPM were very similar, meaning that there was little need for variable valve duration. Some time prior to 1919 Lawrence Pomeroy, Vauxhall's Chief Designer, had designed a 4.4 L engine for a proposed replacement for the existing 30-98 model to be called the H-Type.[5] In this engine the single overhead camshaft was to move longitudinally to allow different camshaft lobes to be engaged. It was in the 1920s that the first patents for variable duration valve opening started appearing – for example United States patent U.S. Patent

 

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