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- A tubular metal shaft that rotates in an engine and features cam lobes that control the intake and exhaust valves. The camshaft is located within the engine block in overhead valve engines, and is located just above the cylinder head in overhead cam engines. Most engines have one camshaft, but a V-shaped (e.g., V6 or V8) single overhead cam engine will have two. An inline (e.g., a non-V-shaped 6-cylinder) dual overhead cam engine also will have two camshafts, while a V-shaped dohc engine will have four cams. The Auto glossary.com
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- Be aware that when using cams with greater than .430 inches of lift on some solid lifter heads, it may become necessary to clearance grind each side of the lifter bores to prevent camshaft interference with the cylinder head casting. - Autotech
![](https://cfcdn.proz.com/images/wikiwords/small_grey_arr.gif) - Overhead camshaft (OHC) valvetrain configurations place the camshaft within the cylinder heads, above the combustion chambers, and drive the valves or lifters directly instead of using pushrods. - Answers.com
![](https://cfcdn.proz.com/images/wikiwords/small_grey_arr.gif) - Over the last several years we have witnessed a decline in "stock" camshaft replacement, most everyone has moved toward custom camshafts grinds. - Delta Camshaft
![](https://cfcdn.proz.com/images/wikiwords/small_grey_arr.gif) Compare [close] - Chinese
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- 凸轮轴是发动机配气机构的一部分,专门负责驱动气门按时开启和关闭,作用是保证发动机在工作中定时为汽缸吸入新鲜的可燃混合气,并及时将燃烧后的废气排出汽缸。凸轮轴直接通过摇臂驱动气门,很适用于高转速的轿车发动机,由于转速较高,为保证进排气和传动效率、简化传动机构、降低高转速的振动和噪音,多采用顶置式气门和顶置式凸轮轴,这样,发动机的结构也比较紧凑。但任何事物都有两面性,顶置式凸轮轴的缺点是由于部件的布置设计比较复杂,维修起来也比较麻烦。但衡量利弊,它还是比较适合于轿车。 汽车之家 - by Alvin Liu
- Example sentence(s)
- 较早出现的顶置式凸轮轴结构的发动机是SOHC(SingleOverHeadCam,顶置单凸轮轴)式发动机。这种发动机在顶部只安装了一根凸轮轴,因此一般每个汽缸只有两到三个气门(进气一到两个,排气一个),高速性能受到了限制。而技术更新一些的则是DOHC式(DoubleOverHeadCam,顶置双凸轮轴)发动机,这种发动机由于配备了两根凸轮轴,每个汽缸可以安装四到五个气门(进气二到三个,排气二个),高速性能得到了显著的提升,不过与此同时低速性能会受到一定的影响,结构也会变得复杂,不易维修。 - 百度百科
by Alvin Liu - Related KudoZ question
Compare [close] Compare [close] - Danish
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- Knastakselen er den aksel, der sørger for at ventilerne i en forbrændingsmotor bliver åbnet på de rette tidspunkter. I nyere motorer er knastakselen normalt placeret øverst i motorens topstykke (overliggende knastaksel).
Knastakselen virker ved, at der på akselen er "knaster", der er placeret forskudt for hinanden. Når akselen drejer rundt, vil knasternes spids påvirke ventilerne sådan, at de rette ventiler åbner på de rette tidspunkter. Ventilerne lukkes af ventilfjedre.
Almindeligvis har mindre motorer kun en knastaksel, men to er ikke ualmindeligt og V-motorer kan have endnu flere. Wikipedia - by Michael Davies
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- Knastakselen virker ved, at der på akselen er "knaster", der er placeret forskudt for hinanden. - Wikipedia
by Michael Davies - Related KudoZ question
Compare [close] - Lithuanian
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- Vidaus degimo varikliuose – velenas su kumšteliais, kuris sukdamasis valdo įsiurbimo ir išmetimo vožtuvų atsidarymą ir užsidarymą. SOHC tipo varikliuose tas pats velenas valdo ir išmetimo, ir įsiurbimo vožtuvus, DOHC tipo varikliuose yra atskiri velenai įsiurbimo ir išmetimo vožtuvams. Own research - by Justas Staniulis
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Compare [close] - Greek
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- Εκκεντροφόρος άξονας: Ένας άξονας με πολλά έκκεντρα (λοβούς), τα οποία
πιέζουν τα ωστήρια των βαλβίδων μετατρέποντας την περιστροφική κίνηση του
άξονα σε παλινδρομική κίνηση των βαλβίδων. Το άνοιγμα και το κλείσιμο των
βαλβίδων σε έναν κινητήρα ελέγχεται από έναν ή περισσότερους εκκεντροφόρους
άξονες. 4troxoi Magazine - by Anastasia Naoumi (X)
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- Οι εκκεντροφόροι (στα 16βάλβιδα οχήματα υπάρχουν δύο ενώ στα 8βάλβιδα ένας) ελέγχουν το ύψος ανύψωσης της βαλβίδας, τη διάρκεια ανοιγοκλεισίματος καθώς και τον τρόπο ανοιγοκλεισίματος αφού ανάλογα με τις ανάγκες του κινητήρα μπορεί να είναι ομαλός ή απότομος. - AutoTriti Magazine
by Anastasia Naoumi (X) - Related KudoZ question
Compare [close] - Bulgarian
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- Разпределителният вал е основно приспособление в газоразпределителния механизъм на двигателите с вътрешно горене. Разпределителният вал управлява движението на клапаните. При работа на двигателя той е подложен на огъване и усукване, а върху гърбиците му действат значителни контактни напрежения, предизвикващи интензивното му износване.
Основните елементи на разпределителният вал са: тяло, гърбици, опорни (лагерни) шийки и фланец. Валът се задвижва с помощта на зъбно колело, което се закрепва към фланеца с болтове. Точното ъглово положение на колелото спрямо гърбиците, необходимо за правилното центроване на ГРМ се осъществява от щифт, поставен в съвместно пробитите в колелото и фланеца отвори.
Own research - by George Boyadjiev
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- разпределителния вал се върти от коляновия вал с верига или набразден ремък като съотношението винаги е 2:1- на всеки 2 оборота на коляновия вал, разпределителния се завърта веднъж. - offroad bulgaria
by George Boyadjiev - Related KudoZ question
Compare [close] - Croatian
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- Bregasto vratilo ima zadatak da u pravom trenutku i pravilnim redoslijedom aktivira ventile, te da upravlja promjenom dodavanja gasa.
Kontinuiranim pomicanjem bregastog vratila mogu se u jedinstvenom smjeru pomaknuti vremena upravljanja svih ventila koje pogoni dotično bregasto vratilo. Tako se kod motora sa dva gore smještena bregasta vratila može utjecati na veličinu i položaj presjecanja ventila, a kao posljedica toga se poboljšava ponašanje u području djelomičnog i punog operećenja. Leksikon tehničkih podataka: Kontinuira - by Sonja Bulesic Milic
- Example sentence(s)
- Bregasto vratilo ima zadatak da u pravom trenutku i pravilnim redoslijedom aktivira ventile, te da upravlja promjenom dodavanja gasa.
- Volkswagen
by Sonja Bulesic Milic - Razvodni mehanizam treba omogućiti izmjenu radne tvari u cilindru motora na kraju
svakog radnog procesa. Ta se izmjena, odnosno razvod radne tvari, kod 4T-motora danas vrši
isključivo s pomoću ventila, bregastog vratila i elemenata za prijenos pomaka s brijega na
ventil. - Fakultet strojarstva i brodogradnje
by Sonja Bulesic Milic - Related KudoZ question
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