Siaip problema kiek ne tame. l4 ir l6 mataruose teisingiausiai inercijos 
momentai susikompensuoja

"CodeC" <co@co.co> wrote in message news:jhuatn$gd$1@trimpas.omnitel.net...
> On 02/20/2012 10:10 AM, Signalizacija wrote:
>> Aga vietoj triju tikrai butu geriau du. bet ir dvieju cilindru mataras 
>> ner
>> lengva gerai padaryt. Megsta anas sukaliotis kaip nereikia.
>> O referata gali ir neskaityt, gali visa varikliu teorijis kursa pasimokyt
>
> si karta pasitikesiu tuo, ka raso wiki, nes manau, kad pakankamai 
> teisingai:
>
> In a one-, two-, or three-cylinder engine there are times when no power 
> stroke is occurring. In a three-cylinder engine a power stroke occurs 
> every 240 degrees (720° ÷ 3 = 240°). Since a power stroke cannot last 
> longer than 180 degrees, this means that a three-cylinder engine has 60 
> degrees of "silence" when no power stroke takes place.
>
> A five-cylinder engine gets a power stroke every 144 degrees (720° ÷ 5 = 
> 144°). Since each power stroke lasts 180 degrees, this means that a power 
> stroke is always in effect. Because of uneven levels of torque during the 
> expansion strokes divided among the five cylinders, there is increased 
> secondary-order vibrations. At higher engine speeds, there is an uneven 
> third-order vibration from the crankshaft which occurs every 144 degrees. 
> Because the power strokes have some overlap, a five-cylinder engine may 
> run more smoothly than a non-overlapping four-cylinder engine, but only at 
> limited mid-range speeds where second and third-order vibrations are 
> lower.
>
> Every cylinder added beyond five increases the overlap of firing strokes 
> and makes for less primary order vibration. An inline-six gets a power 
> stroke every 120 degrees. So there is more overlap (180° - 120° = 60°) 
> than in a five-cylinder engine (180° - 144° = 36°). *However, this 
> increase in smoothness of a six-cylinder engine over a five-cylinder 
> engine is not as pronounced as that of a five-cylinder engine over a 
> four-cylinder engine*. The inline-five loses less power to friction as 
> compared to an inline-six. It also uses fewer parts, and it is physically 
> shorter, so it requires less room in the engine bay, allowing for 
> transverse mounting.
>
> From the standpoint of driving experience, five-cylinder engines are noted 
> for combining the best aspects of four- and six-cylinder engines. They 
> generate more power and torque than four-cylinder engines, while 
> maintaining the fuel economy and "pep" of smaller six-cylinder engines. 
> Five-cylinder turbos have been used on more than one occasion in sport and 
> racing applications for their balance of performance qualities.
>
>>
>> "CodeC"<co@co.co>  wrote in message 
>> news:jhsuam$70g$1@trimpas.omnitel.net...
>>> On 02/20/2012 09:52 AM, Signalizacija wrote:
>>>> Arkliui aisku kad L4
>>>> http://beta.mokslai.lt/referatai/konspektas/vidaus-degimo-variklia-1-puslapis7.html
>>>> kratinys bet gal kur rasi ir daugiau pasiskaityt
>>>
>>> aciu, bet referatu tikrai neskaitysiu, jei negali dviem sakiniais
>>> suformuluoti esmes reiskia pats mazai ka suprati ir sneki bile sneket.
>>> as kotais sunkiai sutikciau patiket, kad ta penkta cilindra padaro tam,
>>> kad blogiau butu. pagal tavo logika tai vietoj triju cilindru geriau 
>>> butu
>>> du.
>>> o siaip - viskas yra kompromisas. I6 irgi kompromisas, nes yra dar 
>>> geriau.
>>> turbo irgi kompromisas, nes yra biturbo, ir t.t....
>>
>>
>