Bài 1 HT bôi trơn bài giảng

MÔ ĐUN SỬA CHỮA & BẢO DƯỠNG HỆTHỐNG BÔI TRƠN VÀ LÀM MÁT © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only HỆ THỐNG BÔI TRƠN ĐỘNG CƠ © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only BÀI HỆ THỐNG THỐNG BÔI BÔI TRƠN TRƠN HỆ © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only Sơ đồ đường dầu bôi trơn động chữ V © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only NHIỆM VỤ - Giảm ma sát - Rửa - Làm mát - Bao kín - Chống oxy hoá © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only YÊU CẦU * Mỗi động phải có hệ thống bôi trơn * Trong hệ thống phải có bơm dự trữ * Động phải bôi trơn liên tục điều kiện làm việc * Lượng dầu nhờn dự trữ phải đủ tương ứng với lượng nhiên liệu động lực © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only PHÂN LOẠI Bôi trơn vung toé (xe máy) Pha dầu nhiên liệu Bôi trơn hứng dầu Bôi trơn cưỡng (dùng bơm nhớt) © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only Bôi trơn vung té (Xe gắn máy) © Goodheart-Willcox Co., Inc Bôi trơn hứng dầu (Một số động nhỏ, tĩnh tại) Permission granted to reproduce for educational use only CẤU TẠO SƠ ĐỒ CẤU TẠO © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only NGUYÊN LÝ LÀM VIỆC HỆ THỐNG BÔI TRƠN © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only Pressure Relief Valve © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only Oil Filters  Removes small metal particles, carbon, rust, and dirt from oil  Filter element paper or cotton filtering substance  Filter bypass valve protects the engine from oil starvation the valve opens if too much pressure is formed in the filter allows unfiltered oil to the bearings © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only Oil Filter Types  Spin-on filter sealed unit the filter is screwed into place  Cartridge oil filter separate element and housing to service, the housing is removed a new element is installed inside the existing housing © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only Spin-on Oil Filter © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only Filter Oil Flow © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only Oil Filter Housing Mounting place for the oil filter © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only Oil Cooler Heat exchanger to lower and control the temperature of the engine oil © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only Oil Galleries Passages through the cylinder block and head for lubricating oil © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only Oil Spray Nozzles Direct a stream of oil onto the bottoms of the pistons, timing gears or chain © Goodheart-Willcox Co., Inc Fig 27 Permission granted to reproduce for educational use only Draws fumes out of the engine crankcase Burns the fumes in the engine Prevents engine sludging © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only Warns the driver of a low oil pressure problem Components: warning light oil pressure switch The oil pressure switch is opened and closed by oil pressure and operates the dash indicator light © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only Oil Pressure Warning Light Circuit © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only Oil Pressure Gauge Circuit  Components: oil pressure gauge oil pressure sending unit  A variable resistor sending unit operates the oil pressure gauge © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only Oil Pressure Gauge Circuit © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only Oil Level Sensor Mounted in the oil pan, operates a dash indicator to warn the driver to add oil © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only ... LOẠI Bôi trơn vung toé (xe máy) Pha dầu nhiên liệu Bôi trơn hứng dầu Bôi trơn cưỡng (dùng bơm nhớt) © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only Bôi trơn. ..HỆ THỐNG BÔI TRƠN ĐỘNG CƠ © Goodheart-Willcox Co., Inc Permission granted to reproduce for educational use only BÀI HỆ THỐNG THỐNG BÔI BÔI TRƠN TRƠN HỆ © Goodheart-Willcox... reproduce for educational use only YÊU CẦU * Mỗi động phải có hệ thống bôi trơn * Trong hệ thống phải có bơm dự trữ * Động phải bôi trơn liên tục điều kiện làm việc * Lượng dầu nhờn dự trữ phải đủ