{"id":432,"date":"2023-01-27T08:03:07","date_gmt":"2023-01-27T08:03:07","guid":{"rendered":"https:\/\/korsairs.com\/?p=432"},"modified":"2023-02-15T05:56:24","modified_gmt":"2023-02-15T05:56:24","slug":"care-sunt-paginile-standard-ale-uinui-site-de-prezentare","status":"publish","type":"post","link":"https:\/\/korsairs.com\/it\/care-sunt-paginile-standard-ale-uinui-site-de-prezentare\/","title":{"rendered":"O comparatie intre cele doua tehnologii: 2 timpi vs. 4 timpi"},"content":{"rendered":"<p><strong>In cele ce urmeaza va prezentam pe scurt cele doua tehnologii ce stau la baza constructoare a motoarelor de barca.&nbsp;Atentie nu dorim sa va influientam astfel in decizia dumneavostra de achizitie a unui motor de barca. Va rugam sa va faceti propriile cercetari si documentativa temeinic inainte de achizitia unui anumit tip de motor.<\/strong><\/p>\n\n\n\n<p>Cele mai des intalnite motoare cu ardere intern\u0103 &nbsp;de ast\u0103zi pot fi definite ca fiind motoate cu ciclu \u00een patru timpi sau doi timpi. Doi timpi sau patru timpi se refer\u0103 la num\u0103rul de curse pe care pistonul le face \u00een cilindru pentru a completa un ciclu motor.<\/p>\n\n\n\n<p>Un timp este mi\u0219carea pistonului \u00eentr-o singur\u0103 direc\u021bie, deplasarea acestuia din partea de sus la partea de jos a cilindrului. Mi\u0219carea pistonului este asigurat\u0103 de un mecanism biel\u0103-arbore cotit \u0219i are loc \u00eentre dou\u0103 pozi\u021bii extreme: punctul mort interior \u0219i punctul mort exterior.<\/p>\n\n\n\n<p>\u00cen punctul mort interior PMI, pistonul este \u00een interiorul cilindrului \u0219i volumul acestuia este minim.<\/p>\n\n\n\n<p>La punctul mort exterior PME, pistonul se g\u0103se\u0219te la cealalt\u0103 extremitate \u00een raport cu PMI \u0219i volumul acestuia este maxim<\/p>\n\n\n\n<p>Un motor cu ardere intern\u0103 repet\u0103 continuu un ciclu motor ce cuprinde patru faze numite: admisia, compresie, arderea si destinderea, &nbsp;evacuarea.<\/p>\n\n\n\n<p>Motorul in doi timpi desfasoara intreg ciclul motor numai in decursul unei rotatii a arborelui cotit (ciclu in doi timpi)<\/p>\n\n\n\n<p>Pana de curand majoritatea motoarelor exterioare pentru barci foloseau tehnologia in doi timpi. Acestea aveau o reputatie proasta de mancatoare de combustibil si de motoare murdare, care poluau. Cu toate acestea, reglement\u0103rile actuale de reducere a emisilor impinge proiectarea de motoare catre cele in patru timpi care sunt mai ecologice sau in doi timpi cu injectie directa, unde dozarea amestecului pentru ardere este foarte bine calculata pentru a asigura o ardere in proportie cat mai mare.&nbsp;<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Motoarele in 2 timpi*<\/strong><\/h4>\n\n\n\n<p><strong>Comparatie:<\/strong><\/p>\n\n\n\n<p>Motoarele in doi timpi dezvolta o putere mai mare decat motoare in 4 timpi, la aceeasi capacitate cilindrica.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Puncte tari<\/strong><\/td><td><strong>Puncte slabe<\/strong><\/td><\/tr><tr><td>Sunt mai usoare decat cele in 4 timpi<\/td><td>Poluaza mai mult<\/td><\/tr><tr><td>Accelereaza mai repede<\/td><td>Trebuie sa faci amestec ce combustibil (benzina+ulei), exceptie cele pe injectie<\/td><\/tr><tr><td>Pret de achizitie mai mic<\/td><td>Sunt mai zgomotoase<\/td><\/tr><tr><td>Usor de reparat<\/td><td>Uneori pornesc mai greu<\/td><\/tr><tr><td>Piese disponibile mai usor de gasit<\/td><td>Daca nu sunt folosite des trebuie curatat carburatorul (de depunerile reziduale de ulei)<\/td><\/tr><tr><td>Constructie simpla<\/td><td>Bujiile trebuiesc curatate mai des<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>*tabelul de mai sus nu face referire la motoarele in doi timpi cu injectie directa<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Motoarele in 4 timpi<\/strong><\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Puncte tari<\/strong><\/td><td><strong>Puncte slabe<\/strong><\/td><\/tr><tr><td>Sunt silentioase<\/td><td>Sunt mai grele<\/td><\/tr><tr><td>Consum redus de combustibil<\/td><td>De multe ori costuri ridicate de reparatie<\/td><\/tr><tr><td>Polueaza mai putin<\/td><td>Inca nu au o fiabilitate dovedita<\/td><\/tr><tr><td>Nu trebuie facut amestecul de combustibil<\/td><td>Mai scumpe la achizitie<\/td><\/tr><tr><td>Pot fi utilizate in orice fel de apa<\/td><td>Mai multe componente mai mare risc de defectiune<\/td><\/tr><tr><td>Fiabile<\/td><td>Mai greu de transportat si de depozitat<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"<p>In cele ce urmeaza va prezentam pe scurt cele doua tehnologii ce stau la baza constructoare a motoarelor de barca.&nbsp;Atentie nu dorim sa va influientam astfel in decizia dumneavostra de achizitie a unui motor de barca. Va rugam sa va faceti propriile cercetari si documentativa temeinic inainte de achizitia unui anumit tip de motor. Cele [&hellip;]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[9],"tags":[],"class_list":["post-432","post","type-post","status-publish","format-standard","hentry","category-informatii-utile"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>O comparatie intre cele doua tehnologii: 2 timpi vs. 4 timpi - Korsairs<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/korsairs.com\/it\/care-sunt-paginile-standard-ale-uinui-site-de-prezentare\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"O comparatie intre cele doua tehnologii: 2 timpi vs. 4 timpi - Korsairs\" \/>\n<meta property=\"og:description\" content=\"In cele ce urmeaza va prezentam pe scurt cele doua tehnologii ce stau la baza constructoare a motoarelor de barca.&nbsp;Atentie nu dorim sa va influientam astfel in decizia dumneavostra de achizitie a unui motor de barca. 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