{"id":7500,"date":"2022-07-22T10:00:53","date_gmt":"2022-07-22T03:00:53","guid":{"rendered":"https:\/\/www.okxe.vn\/blog\/?p=7500"},"modified":"2024-04-16T13:38:42","modified_gmt":"2024-04-16T06:38:42","slug":"dong-co-2-thi-dan-chet-tren-xe-may-dau-la-nguyen-nhan","status":"publish","type":"post","link":"http:\/\/54.169.97.118\/blog\/ky-thuat-xe\/dong-co-2-thi-dan-chet-tren-xe-may-dau-la-nguyen-nhan","title":{"rendered":"\u0110\u1ed9ng c\u01a1 2 th\u00ec d\u1ea7n \u2018ch\u1ebft\u2019 tr\u00ean xe m\u00e1y, \u0111\u00e2u l\u00e0 nguy\u00ean nh\u00e2n?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_60 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >N\u1ed9i Dung T&oacute;m T\u1eaft B&agrave;i Vi\u1ebft<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\" role=\"button\"><label for=\"item-69dac3418293e\" ><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #000000;color:#000000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #000000;color:#000000\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input aria-label=\"Toggle\" aria-label=\"item-69dac3418293e\"  type=\"checkbox\" id=\"item-69dac3418293e\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"http:\/\/54.169.97.118\/blog\/ky-thuat-xe\/dong-co-2-thi-dan-chet-tren-xe-may-dau-la-nguyen-nhan\/#Dong_co_2_thi_la_gi\" title=\"\u0110\u1ed9ng c\u01a1 2 th\u00ec l\u00e0 g\u00ec?\">\u0110\u1ed9ng c\u01a1 2 th\u00ec l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"http:\/\/54.169.97.118\/blog\/ky-thuat-xe\/dong-co-2-thi-dan-chet-tren-xe-may-dau-la-nguyen-nhan\/#Cau_tao_dong_co_2_thi\" title=\"C\u1ea5u t\u1ea1o \u0111\u1ed9ng c\u01a1 2 th\u00ec\">C\u1ea5u t\u1ea1o \u0111\u1ed9ng c\u01a1 2 th\u00ec<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"http:\/\/54.169.97.118\/blog\/ky-thuat-xe\/dong-co-2-thi-dan-chet-tren-xe-may-dau-la-nguyen-nhan\/#Nguyen_ly_hoat_dong_cua_dong_co_2_thi\" title=\"Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u0111\u1ed9ng c\u01a1 2 th\u00ec\">Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u0111\u1ed9ng c\u01a1 2 th\u00ec<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"http:\/\/54.169.97.118\/blog\/ky-thuat-xe\/dong-co-2-thi-dan-chet-tren-xe-may-dau-la-nguyen-nhan\/#Thi_dau_tien_Qua_trinh_tao_cong_va_nen_truoc\" title=\"Th\u00ec \u0111\u1ea7u ti\u00ean: Qu\u00e1 tr\u00ecnh t\u1ea1o c\u00f4ng v\u00e0 n\u00e9n tr\u01b0\u1edbc\">Th\u00ec \u0111\u1ea7u ti\u00ean: Qu\u00e1 tr\u00ecnh t\u1ea1o c\u00f4ng v\u00e0 n\u00e9n tr\u01b0\u1edbc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"http:\/\/54.169.97.118\/blog\/ky-thuat-xe\/dong-co-2-thi-dan-chet-tren-xe-may-dau-la-nguyen-nhan\/#Thi_sau_Qua_trinh_nen_va_hut\" title=\"Th\u00ec sau: Qu\u00e1 tr\u00ecnh n\u00e9n v\u00e0 h\u00fat\">Th\u00ec sau: Qu\u00e1 tr\u00ecnh n\u00e9n v\u00e0 h\u00fat<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"http:\/\/54.169.97.118\/blog\/ky-thuat-xe\/dong-co-2-thi-dan-chet-tren-xe-may-dau-la-nguyen-nhan\/#Uu_nhuoc_diem_cua_dong_co_2_thi\" title=\"\u01afu, nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a \u0111\u1ed9ng c\u01a1 2 th\u00ec\">\u01afu, nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a \u0111\u1ed9ng c\u01a1 2 th\u00ec<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"http:\/\/54.169.97.118\/blog\/ky-thuat-xe\/dong-co-2-thi-dan-chet-tren-xe-may-dau-la-nguyen-nhan\/#Uu_diem\" title=\"\u01afu \u0111i\u1ec3m\u00a0\">\u01afu \u0111i\u1ec3m\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"http:\/\/54.169.97.118\/blog\/ky-thuat-xe\/dong-co-2-thi-dan-chet-tren-xe-may-dau-la-nguyen-nhan\/#Khuyet_diem\" title=\"Khuy\u1ebft \u0111i\u1ec3m\">Khuy\u1ebft \u0111i\u1ec3m<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<p><strong><b>\u0110\u1ed9ng c\u01a1 2 th\u00ec t\u1eebng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn tr\u00ean xe m\u00e1y trong giai \u0111o\u1ea1n 1970-2000. Khuy\u1ebft \u0111i\u1ec3m nhi\u1ec1u h\u01a1n \u01b0u \u0111i\u1ec3m l\u00e0 nguy\u00ean nh\u00e2n khi\u1ebfn \u0111\u1ed9ng c\u01a1 n\u00e0y d\u1eabn bi\u1ebfn m\u1ea5t tr\u00ean c\u00e1c m\u1eabu xe 2 b\u00e1nh, nh\u1ea5t l\u00e0 s\u1ea3n ph\u1ea9m th\u01b0\u01a1ng m\u1ea1i.\u00a0<\/b><\/strong><\/p>\n<p><strong><span style=\"font-weight: 400;\">Hi\u1ec7n nay, ph\u1ea7n l\u1edbn xe m\u00e1y, m\u00f4 t\u00f4 \u0111\u01b0\u1ee3c trang b\u1ecb \u0111\u1ed9ng c\u01a1 4 th\u00ec (k\u1ef3). \u0110\u00e2u \u0111\u00f3, nh\u1eefng m\u1eabu xe 2 th\u00ec v\u1eabn c\u00f2n t\u1ed3n t\u1ea1i v\u00e0 \u0111\u01b0\u1ee3c l\u01b0u h\u00e0nh, d\u00f9 s\u1ed1 l\u01b0\u1ee3ng chi\u1ebfm thi\u1ec3u s\u1ed1.\u00a0<\/span><\/strong><\/p>\n<ul>\n<li><strong><em>Xem th\u00eam:\u00a0<a href=\"https:\/\/www.okxe.vn\/blog\/ky-thuat-xe\/cac-loai-truyen-dong-xe-mo-to-thuong-gap\">C\u00e1c lo\u1ea1i truy\u1ec1n \u0111\u1ed9ng xe m\u00f4 t\u00f4 th\u01b0\u1eddng g\u1eb7p<\/a><\/em><\/strong><\/li>\n<li><strong><em>Xem th\u00eam:\u00a0<a href=\"https:\/\/www.okxe.vn\/blog\/tu-van\/co-nen-mua-xe-2-thi-khong-khi-xe-da-ngung-san-xuat\">C\u00f3 n\u00ean mua xe 2 th\u00ec kh\u00f4ng khi xe \u0111\u00e3 ng\u01b0ng s\u1ea3n xu\u1ea5t?<\/a><\/em><\/strong><\/li>\n<li><strong><em>Xem th\u00eam:\u00a0<\/em><\/strong><a href=\"https:\/\/www.okxe.vn\/blog\/xu-huong-xe\/thi-truong-xe-may-nua-dau-nam-2022-tang-truong-tot-du-nhieu-bien-dong\"><strong><em>Th\u1ecb tr\u01b0\u1eddng xe m\u00e1y n\u1eeda \u0111\u1ea7u n\u0103m 2022: T\u0103ng tr\u01b0\u1edfng t\u1ed1t d\u00f9 nhi\u1ec1u bi\u1ebfn \u0111\u1ed9ng<\/em><\/strong><\/a><\/li>\n<\/ul>\n<p><strong><span style=\"font-weight: 400;\">\u0110\u1ed9ng c\u01a1 2 th\u00ec c\u00f3 c\u1ea5u t\u1ea1o nh\u01b0 th\u1ebf n\u00e0o v\u00e0 t\u1ea1i sao \u0111\u1ed9ng c\u01a1 n\u00e0y l\u1ea1i kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u01b0 lo\u1ea1i 4 th\u00ec?<\/span><\/strong><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Dong_co_2_thi_la_gi\"><\/span><strong><b>\u0110\u1ed9ng c\u01a1 2 th\u00ec l\u00e0 g\u00ec?<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong><span style=\"font-weight: 400;\">\u0110\u1ed9ng c\u01a1 2 th\u00ec, hay c\u00f2n g\u1ecdi l\u00e0 \u0111\u1ed9ng c\u01a1 2 k\u1ef3, l\u00e0 lo\u1ea1i \u0111\u1ed9ng c\u01a1 \u0111\u1ed1t trong \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o theo d\u1ea1ng c\u00f3 p\u00edt t\u00f4ng \u0111\u1ea9y. G\u1ecdi l\u00e0 \u0111\u1ed9ng c\u01a1 2 th\u00ec v\u00ec h\u1ec7 tr\u1ee5c khu\u1ef7u c\u1ee7a \u0111\u1ed9ng c\u01a1 ho\u00e0n th\u00e0nh m\u1ed9t chu v\u00f2ng quay. T\u1ee9c th\u1ef1c hi\u1ec7n \u0111\u1ea7y \u0111\u1ee7 k\u1ef3 h\u00fat-n\u00e9n-n\u1ed5-x\u1ea3, trong 2 giai \u0111o\u1ea1n (th\u00ec).<\/span><\/strong><\/p>\n<figure id=\"attachment_7512\" aria-describedby=\"caption-attachment-7512\" style=\"width: 615px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-7512 lazyload\" data-src=\"https:\/\/www.okxe.vn\/blog\/wp-content\/uploads\/2023\/12\/89-content-news-dong-co-2-thi-6-20220722085339-uajghxvt_o.jpg\" alt=\"\" width=\"615\" height=\"461\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 615px; --smush-placeholder-aspect-ratio: 615\/461;\" \/><figcaption id=\"caption-attachment-7512\" class=\"wp-caption-text\">\u0110\u1ed9ng c\u01a1 2 th\u00ec ch\u1ec9 c\u1ea7n 2 giai \u0111o\u1ea1n \u0111\u1ec3 ho\u00e0n th\u00e0nh m\u1ed9t chu k\u1ef3 quay c\u1ee7a piston. \u1ea2nh: MCN.<\/figcaption><\/figure>\n<p><strong><span style=\"font-weight: 400;\">Trong \u0111\u00f3, giai \u0111o\u1ea1n \u0111\u1ea7u l\u00e0 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a piston t\u1eeb tr\u1ea1ng th\u00e1i t\u0129nh theo m\u1ed9t h\u01b0\u1edbng v\u1ec1 tr\u1ea1ng th\u00e1i t\u0129nh m\u1edbi, hay chuy\u1ec3n \u0111\u1ed9ng t\u1eeb m\u1ed9t \u0111i\u1ec3m ch\u1ebft d\u01b0\u1edbi \u0111\u1ebfn \u0111i\u1ec3m ch\u1ebft tr\u00ean (k\u1ef3 l\u00ea &#8211; upstroke).\u00a0<\/span><\/strong><\/p>\n<p><strong><span style=\"font-weight: 400;\">Sau \u0111\u00f3, tr\u1ee5c khu\u1ef7u s\u1ebd ho\u00e0n th\u00e0nh n\u1eeda v\u00f2ng quay c\u00f2n l\u1ea1i c\u1ee7a chu k\u1ef3 trong giai \u0111o\u1ea1n th\u1ee9 2 (th\u00ec 2) v\u1edbi h\u00e0nh tr\u00ecnh piston ng\u01b0\u1ee3c l\u1ea1i, t\u1eeb \u0111i\u1ec3m ch\u1ebft tr\u00ean v\u1ec1 \u0111i\u1ec3m ch\u1ebft d\u01b0\u1edbi (downstroke).<\/span><\/strong><\/p>\n<p><strong><span style=\"font-weight: 400;\">Lo\u1ea1i \u0111\u1ed9ng c\u01a1 2 th\u00ec x\u0103ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng cho xe c\u00f3 c\u00f4ng su\u1ea5t th\u1ea5p, m\u00e1y c\u1eaft c\u1ecf, m\u00e1y c\u01b0a\u2026 Trong khi \u0111\u1ed9ng c\u01a1 2 th\u00ec diesel b\u1eaft g\u1eb7p \u1edf nh\u1eefng thi\u1ebft b\u1ecb. Ph\u01b0\u01a1ng ti\u1ec7n c\u00f3 c\u00f4ng su\u1ea5t l\u1edbn nh\u01b0 m\u00e1y ph\u00e1t \u0111i\u1ec7n, t\u00e0u h\u1ecfa, t\u00e0u th\u1ee7y\u2026<\/span><\/strong><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cau_tao_dong_co_2_thi\"><\/span><strong><b>C\u1ea5u t\u1ea1o \u0111\u1ed9ng c\u01a1 2 th\u00ec<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong><span style=\"font-weight: 400;\">C\u1ea5u t\u1ea1o \u0111\u1ed9ng c\u01a1 2 th\u00ec bao C\u1ea5u t\u1ea1o c\u1ee7a \u0111\u1ed9ng c\u01a1 2 th\u00ec \u0111\u01b0\u1ee3c cho l\u00e0 \u0111\u01a1n gi\u1ea3n v\u1edbi \u00edt chi ti\u1ebft, g\u1ed3m: piston, tr\u1ee5c khu\u1ef7u, thanh truy\u1ec1n, bugi, c\u1eeda n\u1ea1p, c\u1eeda x\u1ea3, b\u00e1nh \u0111\u00e0.\u00a0<\/span><\/strong><\/p>\n<p><strong><span style=\"font-weight: 400;\">Trong \u0111\u00f3:<\/span><\/strong><\/p>\n<p><strong><span style=\"font-weight: 400;\">&#8211; Piston: Chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng khi nhi\u00ean li\u1ec7u b\u1ecb \u0111\u1ed1t ch\u00e1y v\u00e0 gi\u00e3n n\u1edf trong bu\u1ed3ng \u0111\u1ed1t \u0111\u1ebfn tr\u1ee5c khu\u1ef7u th\u00f4ng qua thanh truy\u1ec1n. Piston chuy\u1ec3n \u0111\u1ed9ng t\u1ecbnh ti\u1ebfn trong xy-lanh, gi\u1eefa piston v\u00e0 xy-lanh c\u00f3 c\u00e1c v\u00f2ng x\u00e9c m\u0103ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 k\u00edn.<\/span><\/strong><\/p>\n<p><strong><span style=\"font-weight: 400;\">&#8211; Tr\u1ee5c khu\u1ef7u: Gi\u00fap piston chuy\u1ec3n \u0111\u1ed5i t\u1eeb chuy\u1ec3n \u0111\u1ed9ng t\u1ecbnh ti\u1ebfn sang chuy\u1ec3n \u0111\u1ed9ng tr\u00f2n.<\/span><\/strong><\/p>\n<p><strong><span style=\"font-weight: 400;\">&#8211; Thanh truy\u1ec1n: D\u00f9ng \u0111\u1ec3 truy\u1ec1n dao \u0111\u1ed9ng t\u1eeb piston \u0111\u1ebfn tr\u1ee5c khu\u1ef7u.\u00a0<\/span><\/strong><\/p>\n<p><strong><span style=\"font-weight: 400;\">&#8211; Bugi: B\u1ed9 ph\u1eadn \u0111\u00e1nh l\u1eeda t\u1ea1o ra tia l\u1eeda \u0111i\u1ec7n \u0111\u1ed1t ch\u00e1y h\u1ed7n h\u1ee3p nhi\u00ean li\u1ec7u.<\/span><\/strong><\/p>\n<p><strong><span style=\"font-weight: 400;\">&#8211; C\u1eeda n\u1ea1p: Cho h\u00f2a kh\u00ed \u0111i v\u00e0o b\u00ean trong bu\u1ed3ng \u0111\u1ed1t \u0111\u1ec3 th\u1ef1c hi\u1ec7n vi\u1ec7c \u0111\u1ed1t ch\u00e1y.<\/span><\/strong><\/p>\n<p><strong><span style=\"font-weight: 400;\">&#8211; C\u1eeda x\u1ea3: \u0110\u01b0a kh\u00ed th\u1ea3i ra b\u00ean ngo\u00e0i<\/span><\/strong><\/p>\n<p><strong><span style=\"font-weight: 400;\">&#8211; B\u00e1nh \u0111\u00e0: B\u1ed9 ph\u1eadn gi\u00fap l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng.<\/span><\/strong><\/p>\n<p><strong><span style=\"font-weight: 400;\">Do c\u00f3 \u00edt b\u1ed9 ph\u1eadn, vi\u1ec7c b\u1ea3o d\u01b0\u1ee1ng, s\u1eeda ch\u1eefa thay th\u1ebf \u0111\u1ed9ng c\u01a1 2 th\u00ec c\u0169ng d\u1ec5 d\u00e0ng h\u01a1n c\u00e1c lo\u1ea1i \u0111\u1ed9ng c\u01a1 kh\u00e1c.<\/span><\/strong><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Nguyen_ly_hoat_dong_cua_dong_co_2_thi\"><\/span><strong><b>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u0111\u1ed9ng c\u01a1 2 th\u00ec<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure id=\"attachment_7514\" aria-describedby=\"caption-attachment-7514\" style=\"width: 715px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-7514 lazyload\" data-src=\"https:\/\/www.okxe.vn\/blog\/wp-content\/uploads\/2023\/12\/89-content-news-dong-co-2-thi-5-20220722085339-fspab6rt_o.jpg\" alt=\"\" width=\"715\" height=\"478\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 715px; --smush-placeholder-aspect-ratio: 715\/478;\" \/><figcaption id=\"caption-attachment-7514\" class=\"wp-caption-text\">C\u00e1c chu k\u1ef3 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u0111\u1ed9ng c\u01a1 2 th\u00ec. \u1ea2nh: Tr\u01b0\u1eddng Cao \u0111\u1eb3ng C\u00f4ng ngh\u1ec7 B\u00e1ch khoa H\u00e0 N\u1ed9i.<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Thi_dau_tien_Qua_trinh_tao_cong_va_nen_truoc\"><\/span><strong><b>Th\u00ec \u0111\u1ea7u ti\u00ean: Qu\u00e1 tr\u00ecnh t\u1ea1o c\u00f4ng v\u00e0 n\u00e9n tr\u01b0\u1edbc<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong><span style=\"font-weight: 400;\">\u1ede giai \u0111o\u1ea1n n\u00e0y, piston s\u1ebd di chuy\u1ec3n t\u1eeb \u0111i\u1ec3m ch\u1ebft tr\u00ean xu\u1ed1ng \u0111i\u1ec3m ch\u1ebft d\u01b0\u1edbi trong l\u00fac n\u00e0y h\u1ed7n h\u1ee3p nhi\u00ean li\u1ec7u v\u00e0 kh\u00f4ng kh\u00ed s\u1ebd \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o trong bu\u1ed3ng \u0111\u1ed1t. Tr\u1ee5c khu\u1ef7u s\u1ebd quay \u0111\u01b0\u1ee3c n\u1eeda v\u00f2ng tr\u00f2n (180 \u0111\u1ed9).<\/span><\/strong><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Thi_sau_Qua_trinh_nen_va_hut\"><\/span><strong><b>Th\u00ec sau: Qu\u00e1 tr\u00ecnh n\u00e9n v\u00e0 h\u00fat<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong><span style=\"font-weight: 400;\">Piston s\u1ebd di chuy\u1ec3n ti\u1ebfp t\u1ee5c t\u1eeb \u0111i\u1ec3m ch\u1ebft d\u01b0\u1edbi l\u00ean \u0111i\u1ec3m ch\u1ebft tr\u00ean. L\u00fac n\u00e0y, h\u1ed7n h\u1ee3p nhi\u00ean li\u1ec7u b\u1ecb n\u00e9n l\u1ea1i \u0111\u1ed3ng th\u1eddi bugi s\u1ebd \u0111\u00e1nh l\u1eeda v\u00e0 \u0111\u1ed1t ch\u00e1y nhi\u00ean li\u1ec7u. Nhi\u00ean li\u1ec7u \u0111\u1ed1t ch\u00e1y trong bu\u1ed3ng \u0111\u1ed1t v\u00e0 \u0111\u1ea9y piston \u0111i xu\u1ed1ng. Piston s\u1ebd truy\u1ec1n n\u0103ng l\u01b0\u1ee3ng \u0111\u00f3 cho tr\u1ee5c khu\u1ef7u th\u00f4ng qua thanh truy\u1ec1n.<\/span><\/strong><\/p>\n<p><strong><span style=\"font-weight: 400;\">Trong k\u1ef3 sau, c\u1eeda n\u1ea1p m\u1edf ra v\u00e0 h\u1ed7n h\u1ee3p nhi\u00ean li\u1ec7u s\u1ebd \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o bu\u1ed3ng \u0111\u1ed1t. Khi piston \u0111i xu\u1ed1ng, c\u1eeda n\u1ea1p \u0111\u01b0\u1ee3c \u0111\u00f3ng l\u1ea1i v\u00e0 \u0111\u1ed3ng th\u1eddi h\u00f2a kh\u00ed s\u1ebd \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o b\u00ean trong bu\u1ed3ng \u0111\u1ed1t. \u0110\u1ed3ng th\u1eddi, kh\u00ed th\u1ea3i s\u1ebd b\u1ecb \u0111\u1ea9y ra ngo\u00e0i qua c\u1eeda th\u1ea3i nh\u1edd v\u00e0o \u00e1p l\u1ef1c c\u1ee7a h\u00f2a kh\u00ed.<\/span><\/strong><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Uu_nhuoc_diem_cua_dong_co_2_thi\"><\/span><strong><b>\u01afu, nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a \u0111\u1ed9ng c\u01a1 2 th\u00ec<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Uu_diem\"><\/span><strong><b>\u01afu \u0111i\u1ec3m\u00a0<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong><span style=\"font-weight: 400;\">&#8211; Tr\u00ean l\u00fd thuy\u1ebft, \u0111\u1ed9ng c\u01a1 2 th\u00ec l\u00e0 c\u00f3 hi\u1ec7u su\u1ea5t tr\u00ean dung t\u00edch xy-lanh t\u1ed1t h\u01a1n m\u1ed9t \u0111\u1ed9ng c\u01a1 4 th\u00ec c\u00f9ng dung t\u00edch. \u0110i\u1ec1u n\u00e0y \u0111\u1ebfn t\u1eeb vi\u1ec7c \u0111\u1ed9ng c\u01a1 2 th\u00ec c\u00f3 \u00edt qu\u00e1 tr\u00ecnh h\u01a1n v\u00e0 m\u1ed7i giai \u0111o\u1ea1n \u0111\u1ec1u t\u1ea1o ra c\u00f4ng.<\/span><\/strong><\/p>\n<p><strong><span style=\"font-weight: 400;\">&#8211; K\u1ebft c\u1ea5u \u0111\u01a1n gi\u1ea3n n\u00ean kh\u1ed1i l\u01b0\u1ee3ng nh\u1eb9.<\/span><\/strong><\/p>\n<p><strong><span style=\"font-weight: 400;\">&#8211; D\u1ec5 b\u1ea3o tr\u00ec, s\u1eeda ch\u1eefa.<\/span><\/strong><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Khuyet_diem\"><\/span><strong><b>Khuy\u1ebft \u0111i\u1ec3m<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong><span style=\"font-weight: 400;\">&#8211; S\u1eed d\u1ee5ng nhi\u1ec1u ch\u1ea5t b\u00f4i tr\u01a1n n\u00ean \u0111\u1ed9ng c\u01a1 2 th\u00ec ph\u00e1t th\u1ea3i nhi\u1ec1u kh\u00ed cacbon monoxit v\u00e0 c\u00e1c ch\u1ea5t hydrocarbon.\u00a0<\/span><\/strong><\/p>\n<p><strong><span style=\"font-weight: 400;\">&#8211; K\u00e9m b\u1ec1n do c\u00e1c b\u1ed9 ph\u1eadn ho\u1ea1t \u0111\u1ed9ng nhi\u1ec1u h\u01a1n.<\/span><\/strong><\/p>\n<p><strong><span style=\"font-weight: 400;\">&#8211; Ti\u00eau hao nhi\u00ean li\u1ec7u h\u01a1n.<\/span><\/strong><\/p>\n<p><strong><span style=\"font-weight: 400;\">Hi\u1ec7n nay, \u01b0u \u0111i\u1ec3m c\u1ee7a \u0111\u1ed9ng c\u01a1 2 th\u00ec kh\u00f4ng c\u00f2n t\u1ea1o n\u00ean kho\u1ea3ng c\u00e1ch qu\u00e1 l\u1edbn v\u1edbi \u0111\u1ed9ng c\u01a1 4 th\u00ec. Tuy nhi\u00ean, khuy\u1ebft \u0111i\u1ec3m c\u1ee7a lo\u1ea1i \u0111\u1ed9ng c\u01a1 n\u00e0y v\u1eabn ch\u01b0a \u0111\u01b0\u1ee3c kh\u1eafc ph\u1ee5c. D\u1eabn \u0111\u1ebfn vi\u1ec7c c\u00e1c h\u00e3ng xe kh\u00f4ng c\u00f2n qu\u00e1 m\u1eb7n m\u00e0. B\u00ean c\u1ea1nh \u0111\u00f3, c\u00e1c ti\u00eau chu\u1ea9n kh\u00ed th\u1ea3i ng\u00e0y c\u00e0ng kh\u1eaft khe c\u0169ng l\u00e0 nguy\u00ean nh\u00e2n \u0111\u1ea9y \u0111\u1ed9ng c\u01a1 2 th\u00ec v\u00e0o ng\u00f5 c\u1ee5t.<\/span><\/strong><\/p>\n<figure id=\"attachment_7513\" aria-describedby=\"caption-attachment-7513\" style=\"width: 2400px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-7513 lazyload\" data-src=\"https:\/\/www.okxe.vn\/blog\/wp-content\/uploads\/2023\/12\/89-content-news-dong-co-2-thi-2-20220722085339-9wvjhjoy_o.jpg\" alt=\"\" width=\"2400\" height=\"1660\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 2400px; --smush-placeholder-aspect-ratio: 2400\/1660;\" \/><figcaption id=\"caption-attachment-7513\" class=\"wp-caption-text\">Yamaha Z125 l\u00e0 m\u1eabu xe 2 th\u00ec \u0111\u1eddi m\u1edbi hi\u1ebfm hoi c\u00f3 m\u1eb7t t\u1ea1i Vi\u1ec7t Nam. \u1ea2nh: Th\u01b0\u1ee3ng T\u00e2m.<\/figcaption><\/figure>\n<p><strong><span style=\"font-weight: 400;\">Hi\u1ec7n nay, c\u00e1c m\u1eabu xe 2 th\u00ec t\u1ea1i Vi\u1ec7t Nam \u0111a ph\u1ea7n l\u00e0 xe c\u0169, \u0111\u00e3 ra m\u1eaft t\u1eeb l\u00e2u nh\u01b0. Honda Dio, c\u00e1c m\u1eabu Vespa c\u1ed5 hay Suzuki RGV, Satria, Yamaha Z125\u2026<\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0110\u1ed9ng c\u01a1 2 th\u00ec t\u1eebng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn tr\u00ean xe m\u00e1y trong giai \u0111o\u1ea1n 1970-2000. Khuy\u1ebft \u0111i\u1ec3m nhi\u1ec1u h\u01a1n \u01b0u \u0111i\u1ec3m l\u00e0 nguy\u00ean nh\u00e2n khi\u1ebfn \u0111\u1ed9ng c\u01a1 n\u00e0y d\u1eabn bi\u1ebfn m\u1ea5t tr\u00ean c\u00e1c m\u1eabu xe 2 b\u00e1nh, nh\u1ea5t l\u00e0 s\u1ea3n ph\u1ea9m th\u01b0\u01a1ng m\u1ea1i.\u00a0 Hi\u1ec7n nay, ph\u1ea7n l\u1edbn xe m\u00e1y, m\u00f4 t\u00f4 \u0111\u01b0\u1ee3c trang [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":7511,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[161],"tags":[610,419,552,609],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.5 (Yoast SEO v20.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u0110\u1ed9ng c\u01a1 2 th\u00ec d\u1ea7n \u2018ch\u1ebft\u2019 tr\u00ean xe m\u00e1y, \u0111\u00e2u l\u00e0 nguy\u00ean nh\u00e2n?<\/title>\n<meta name=\"description\" content=\"\u0110\u1ed9ng c\u01a1 2 th\u00ec ng\u00e0y c\u00e0ng \u00edt xu\u1ea5t hi\u1ec7n tr\u00ean xe m\u00e1y th\u01b0\u01a1ng m\u1ea1i. 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