The diesel generator crankshaft is mainly composed of a main journal, a connecting rod journal (crank pin), a crank arm, a counterweight, a front end (free end), and a rear end (power output end).
Diesel generator valve drive is mainly composed of camshaft, timing gear, tappet, push rod, rocker arm and rocker shaft. The function of the valve train is to open and close the intake and exhaust valves at a specified time (gas timing) and order (fire order), and to ensure a certain degree of opening.
The function of the generator set radiator is to dissipate the heat carried by the cooling water into the atmosphere to lower the temperature of the cooling water. The heat sink must have sufficient heat dissipation area and be made of a material with good thermal conductivity. Its structure is shown in Figure 1(a). It consists of a water tank (some with air-steam valves), a core and a drain tank. composition. The upper and lower water tanks are used to store cooling water, and a water inlet for injecting cooling water is opened at the top of the upper water tank, and the water tank cover is closed.
Aluminum and aluminum alloy aluminum oxide is easier to oxidize than copper. It forms a dense and refractory alumina film with high melting point. It is difficult to melt during welding, hindering the fusion of matrix metal, easily causing weld metal slag, reducing mechanical properties and resistance. Corrosive; aluminum has a large gas absorption, liquid aluminum can dissolve a large amount of hydrogen, when it is rapidly cooled and solidified, hydrogen can not be precipitated, and pores are easily generated
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