{"id":2239,"date":"2023-10-19T13:59:53","date_gmt":"2023-10-19T13:59:53","guid":{"rendered":"https:\/\/www.motointegrator.it\/blog\/\/?p=2239"},"modified":"2026-04-14T06:24:36","modified_gmt":"2026-04-14T06:24:36","slug":"i-diversi-modelli-di-valvola-a-farfalla","status":"publish","type":"post","link":"https:\/\/www.motointegrator.it\/blog\/i-diversi-modelli-di-valvola-a-farfalla\/","title":{"rendered":"I diversi modelli di valvola a farfalla"},"content":{"rendered":"<p>Montata nel carburatore, la valvola a farfalla di un motore a benzina regola l&#8217;afflusso di aria fresca in modo che il carburante e l&#8217;aria possano essere nebulizzati per formare una miscela infiammabile con cui il motore possa funzionare. Con il rapporto tra carburante e aria, la valvola a farfalla regola quindi la velocit\u00e0 del motore.<\/p>\n<h2>Come funziona la valvola a farfalla?<\/h2>\n<p>Quando la valvola a farfalla \u00e8 aperta, l&#8217;aria entra senza ostacoli nella camera di combustione e viene aspirata dai pistoni attraverso le <a href=\"\/prodotti\/valvole-di-aspirazione-1070213\/\">valvole di aspirazione<\/a>. Oltre al carburante, anche l&#8217;ossigeno atmosferico \u00e8 importante per il processo di combustione. La benzina stessa viene iniettata nel cilindro. Quando il pistone si sposta nuovamente verso l&#8217;alto, la miscela di aria e benzina viene prima compressa e poi accesa tramite la <a href=\"\/prodotti\/candele-di-accensione-11005\/\">candela<\/a>. La valvola a farfalla controlla la quantit\u00e0 di carburante bruciata a ogni corsa del pistone e garantisce che la combustione avvenga nel modo pi\u00f9 efficiente possibile. Se \u00e8 chiusa, non entra pi\u00f9 aria e quindi ossigeno nel motore e il processo di combustione si interrompe. Premendo il pedale dell&#8217;acceleratore si controllano tutte le valvole a farfalla, siano esse elettriche o elettroniche.<\/p>\n<figure id=\"attachment_14505\" aria-describedby=\"caption-attachment-14505\" style=\"width: 500px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"wp-image-14505 size-full\" src=\"https:\/\/www.motointegrator.it\/blog\/wp-content\/uploads\/sites\/12\/2017\/05\/motore-valvola-a-farfalla.jpg\" alt=\"motore valvola a farfalla\" width=\"500\" height=\"375\" srcset=\"https:\/\/www.motointegrator.it\/blog\/wp-content\/uploads\/sites\/12\/2017\/05\/motore-valvola-a-farfalla.jpg 500w, https:\/\/www.motointegrator.it\/blog\/wp-content\/uploads\/sites\/12\/2017\/05\/motore-valvola-a-farfalla-300x225.jpg 300w, https:\/\/www.motointegrator.it\/blog\/wp-content\/uploads\/sites\/12\/2017\/05\/motore-valvola-a-farfalla-80x60.jpg 80w, https:\/\/www.motointegrator.it\/blog\/wp-content\/uploads\/sites\/12\/2017\/05\/motore-valvola-a-farfalla-265x198.jpg 265w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><figcaption id=\"caption-attachment-14505\" class=\"wp-caption-text\">\u00a9 Shutterstock \/ Cristian C. Adrian<\/figcaption><\/figure>\n<h2>I diversi tipi di valvola a farfalla<\/h2>\n<p>Installata nel condotto di aspirazione del motore, la valvola veniva azionata tramite il pedale dell&#8217;acceleratore con un cavo nei veicoli pi\u00f9 vecchi. Sui veicoli pi\u00f9 moderni, esistono diversi modi per azionare la valvola a farfalla:<\/p>\n<h3>Acceleratore elettromeccanico<\/h3>\n<p>Il cavo dell&#8217;acceleratore controlla meccanicamente la posizione delle valvole a farfalla su quelle elettromeccaniche. Un segnale elettrico indica la loro posizione corrente nella centralina del motore, e il sistema di gestione del motore elabora le informazioni e le confronta con i dati di altri sensori. Per controllare in modo ottimale il consumo di carburante e le emissioni di scarico, la centralina del motore monitora costantemente la posizione delle valvole a farfalla e la regola con un apposito dispositivo.<\/p>\n<h3>Valvola a farfalla elettronica<\/h3>\n<p>L&#8217;acceleratore elettronico non \u00e8 pi\u00f9 collegato meccanicamente al pedale dell&#8217;acceleratore. Se si aumenta il regime del motore, l&#8217;acceleratore elettronico riceve il segnale corrispondente e lo trasmette al sistema di gestione del motore. Questo calcola la posizione ottimale della valvola a farfalla e la controlla con l&#8217;aiuto di un servomotore.<\/p>\n<div class=\"product-slider\" style=\"--swiper-theme-color: #d80812;--swiper-navigation-size: 22px;--swiper-navigation-sides-offset: -25px;\"><div class=\"slider-title\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 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0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\"><\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/nznyzgvlkco9gkotrysm.jpg\" alt=\"26070\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.it\/prodotti\/322183-ugello-di-iniezione-denso-dcri200430\" target=\"_blank\">Ugello di iniezione DENSO DCRI200430<\/a><p>Denso<\/p><div class=\"price-container\"><p class=\"price\">280.35 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\"><\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/c1efn3kiejpvapb9egbi.jpg\" alt=\"26144\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.it\/prodotti\/328679-set-di-guarnizioni-ugello-di-iniezione-meat-doria-9719\" target=\"_blank\">Set di guarnizioni, ugello di iniezione MEAT &amp; DORIA 9719<\/a><p>Meat&amp;Doria<\/p><div class=\"price-container\"><p class=\"price\">6.56 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\"><\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/26RUjkRPTydj79gSRMcgjjgGHf7XGSPW.jpg\" alt=\"26246\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.it\/prodotti\/410035-kit-di-riparazione-carburatore-meat-doria-s53g\" target=\"_blank\">Kit di riparazione, carburatore MEAT &amp; DORIA S53G<\/a><p>Meat&amp;Doria<\/p><div class=\"price-container\"><p class=\"price\">9.05 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\"><\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/lnuxrhmz5oho6clhgsue.jpg\" alt=\"32928\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.it\/prodotti\/594212-accumulatore-pressione-carburante-bosch-0-438-170-055\" target=\"_blank\">Accumulatore, pressione carburante BOSCH 0 438 170 055<\/a><p>Bosch<\/p><div class=\"price-container\"><p class=\"price\">231.06 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\"><\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/vhu6ipyqrgewsslhriea.jpg\" alt=\"26133\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.it\/prodotti\/409326-flangia-iniezione-centrale-febi-bilstein-03604\" target=\"_blank\">Flangia, iniezione centrale FEBI BILSTEIN 03604<\/a><p>Febi<\/p><div class=\"price-container\"><p class=\"price\">13.76 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\"><\/p><\/div><\/div><div class=\"swiper-pagination\"><\/div><div class=\"swiper-button-prev\"><\/div><div class=\"swiper-button-next\"><\/div><\/div><\/div>\n<h2>Valvole a farfalla nei motori diesel<\/h2>\n<p>Nella maggior parte dei casi, i motori diesel pi\u00f9 vecchi non sono dotati di valvole a farfalla, con un&#8217;unica eccezione: l&#8217;autoaccenditore a precamera della Mercedes. In questo caso, tuttavia, la posizione della valvola a farfalla non regola la quantit\u00e0 di aria aspirata, ma la quantit\u00e0 di gasolio iniettato dalla pompa diesel. Allo stesso tempo, la valvola a farfalla regola il vuoto per la chiusura centralizzata. In un motore diesel, la miscela viene preparata secondo un principio diverso e quindi non richiede una valvola. Nei nuovi motori diesel a iniezione diretta, le valvole a farfalla sono nuovamente utilizzate, ma non hanno alcuna influenza sulla preparazione della miscela carburante-aria. Servono solo a evitare che il motore si agiti quando viene spento.<\/p>\n<h2>Valvole a farfalla nella Formula 1<\/h2>\n<p>Nella Formula 1 le valvole a farfalla sono componenti indispensabili che possono fare la differenza tra la vittoria e la sconfitta. Da oltre vent&#8217;anni sono stati installati tre diversi tipi di valvole a farfalla: la valvola a ghigliottina interrompe bruscamente l&#8217;alimentazione dell&#8217;aria. Solo quando viene riaperta, l&#8217;aria entra nella camera di combustione. La valvola a farfalla \u00e8 collegata a un asse rotante. Se il conducente aziona l&#8217;acceleratore al massimo, l&#8217;aria entra nella camera di combustione senza ostacoli perch\u00e9 la valvola \u00e8 in posizione verticale. In posizione orizzontale, invece, chiude completamente l&#8217;alimentazione dell&#8217;aria. Poich\u00e9 la valvola a farfalla assomiglia al battito d&#8217;ali di questi animali, ha preso il suo nome pittoresco. Come terza opzione, in questi motori altamente selezionati vengono installate le cosiddette valvole a barile. Si tratta di sfere che possono chiudere ermeticamente il percorso dell&#8217;aria.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Montata nel carburatore, la valvola a farfalla di un motore a benzina regola l&#8217;afflusso di aria fresca in modo che il carburante e l&#8217;aria possano essere nebulizzati per formare una miscela infiammabile con cui il motore possa funzionare. Con il rapporto tra carburante e aria, la valvola a farfalla regola quindi la velocit\u00e0 del motore. [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":14504,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3128,450],"tags":[3712,3710,3709,3711,3713],"class_list":["post-2239","post","type-post","status-publish","format-standard","has-post-thumbnail","category-giostra","category-valvola-a-farfalla","tag-funzione-della-valvola-a-farfalla","tag-tipi-di-valvole-a-farfalla","tag-valvola-a-farfalla","tag-valvola-a-farfalla-diesel","tag-valvola-a-farfalla-elettronica"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>I diversi modelli di valvola a farfalla<\/title>\n<meta name=\"description\" content=\"La valvola a farfalla di un motore a benzina regola l&#039;afflusso di aria fresca in modo che il carburante e l&#039;aria possano far funzionare il motore.\" \/>\n<meta name=\"robots\" content=\"index, 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