{"id":18905,"date":"2024-12-09T12:52:33","date_gmt":"2024-12-09T15:52:33","guid":{"rendered":"https:\/\/hangarmma.com.br\/blog\/?post_type=glossary&#038;p=18905"},"modified":"2024-12-09T12:52:34","modified_gmt":"2024-12-09T15:52:34","slug":"segundo-tempo-de-um-motor-a-dois-tempos","status":"publish","type":"glossary","link":"https:\/\/hangarmma.com.br\/blog\/segundo-tempo-de-um-motor-a-dois-tempos\/","title":{"rendered":"Segundo Tempo de um Motor a Dois Tempos"},"content":{"rendered":"<p class=\"wp-block-paragraph\">No segundo tempo de um motor a dois tempos, o pist&#xE3;o realiza o curso descendente, e as fases de <strong>expans&#xE3;o<\/strong> e <strong>escape<\/strong> ocorrem da seguinte forma:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Expans&#xE3;o<\/strong>: Ap&#xF3;s a <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_c277529973400265ccf44f681ff83c0a\" data-link=\"https:\/\/hangarmma.com.br\/blog\/ignicao\/\" href=\"https:\/\/hangarmma.com.br\/blog\/ignicao\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">igni&#xE7;&#xE3;o<\/a>, a mistura de ar e combust&#xED;vel queimada na <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_5f0fc8a0b334d382970a27828be734dc\" data-link=\"https:\/\/hangarmma.com.br\/blog\/camara-de-combustao\/\" href=\"https:\/\/hangarmma.com.br\/blog\/camara-de-combustao\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">c&#xE2;mara de combust&#xE3;o<\/a> gera uma <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_cd4db4d0098228b04fdb49d475ce176f\" data-link=\"https:\/\/hangarmma.com.br\/blog\/pressao\/\" href=\"https:\/\/hangarmma.com.br\/blog\/pressao\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">press&#xE3;o<\/a> elevada que for&#xE7;a o pist&#xE3;o a descer. Esse movimento descendente transforma a <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_b8619216dd0506d51ad0093ac9f798ab\" data-link=\"https:\/\/hangarmma.com.br\/blog\/energia-2\/\" href=\"https:\/\/hangarmma.com.br\/blog\/energia-2\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">energia<\/a> da combust&#xE3;o em <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_e410587e176283e4543b23736ebf5478\" data-link=\"https:\/\/hangarmma.com.br\/blog\/trabalho-work\/\" href=\"https:\/\/hangarmma.com.br\/blog\/trabalho-work\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">trabalho<\/a> mec&#xE2;nico, transmitido ao eixo de manivelas.<\/li>\n\n\n\n<li><strong>Escape<\/strong>: Durante a descida do pist&#xE3;o, a luz de escape &#xE9; aberta. Isso permite que os gases queimados resultantes da combust&#xE3;o sejam expelidos para fora do cilindro. Simultaneamente, a luz de transfer&#xEA;ncia se abre, e a mistura fresca de ar e combust&#xED;vel, previamente comprimida no <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_68ed988073fb2caa0f7516c74f416589\" data-link=\"https:\/\/hangarmma.com.br\/blog\/carter\/\" href=\"https:\/\/hangarmma.com.br\/blog\/carter\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">c&#xE1;rter<\/a>, &#xE9; transferida para a <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_5f0fc8a0b334d382970a27828be734dc\" data-link=\"https:\/\/hangarmma.com.br\/blog\/camara-de-combustao\/\" href=\"https:\/\/hangarmma.com.br\/blog\/camara-de-combustao\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">c&#xE2;mara de combust&#xE3;o<\/a>.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"633\" height=\"380\" src=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2024\/12\/Capturar-24.png\" alt=\"\" class=\"wp-image-18906\" srcset=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2024\/12\/Capturar-24.png 633w, https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2024\/12\/Capturar-24-300x180.png 300w\" sizes=\"auto, (max-width: 633px) 100vw, 633px\"\/><figcaption class=\"wp-element-caption\">Fonte: Livro Aeronaves e Motores &#x2013; Conhecimentos T&#xE9;cnicos de Avi&#xE3;o &#x2013; Jorge M. Homa<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">O movimento do pist&#xE3;o &#xE9; cuidadosamente cronometrado para garantir que a mistura fresca ajude a &#x201C;varrer&#x201D; os gases de escape enquanto ocupa a <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_5f0fc8a0b334d382970a27828be734dc\" data-link=\"https:\/\/hangarmma.com.br\/blog\/camara-de-combustao\/\" href=\"https:\/\/hangarmma.com.br\/blog\/camara-de-combustao\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">c&#xE2;mara de combust&#xE3;o<\/a>. Esse processo &#xE9; chamado de &#x201C;lavagem&#x201D;, mas pode levar a pequenas perdas de mistura fresca no escape, caracter&#xED;stica comum em motores a dois tempos.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>No segundo tempo de um motor a dois tempos, o pist\u00e3o realiza o curso descendente, e as fases de expans\u00e3o e escape ocorrem da seguinte forma: O movimento do pist\u00e3o \u00e9 cuidadosamente cronometrado para garantir que a mistura fresca ajude a &#8220;varrer&#8221; os gases de escape enquanto ocupa a c\u00e2mara de combust\u00e3o. Esse processo \u00e9 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"menu_order":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"glossary-categories":[],"glossary-tags":[],"class_list":["post-18905","glossary","type-glossary","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Segundo Tempo de um Motor a Dois Tempos - HANGAR MMA<\/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:\/\/hangarmma.com.br\/blog\/segundo-tempo-de-um-motor-a-dois-tempos\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Segundo Tempo de um Motor a Dois Tempos - HANGAR MMA\" \/>\n<meta property=\"og:description\" content=\"No segundo tempo de um motor a dois tempos, o pist\u00e3o realiza o curso descendente, e as fases de expans\u00e3o e escape ocorrem da seguinte forma: O movimento do pist\u00e3o \u00e9 cuidadosamente cronometrado para garantir que a mistura fresca ajude a &#8220;varrer&#8221; os gases de escape enquanto ocupa a c\u00e2mara de combust\u00e3o. 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