Different kinds of transmissions have different requirements for cooling oil. Radiators are increasingly used in different transmissions. The radiators are generally classified into two types, water-cooled and air-cooled: water-cooled is the use of water and transmissions in the front of the engine. Lubricating oil for heat exchange; air-cooled type is the use of the surrounding air through the fins and the lubricating oil in the tube for lubricating oil inlet and outlet, cooling water inlet and outlet external radiator interface, built-in radiator radiator cooling water inlet and outlet form to send.
In transmission use, there are many reasons for high oil temperature, such as: long-time low-speed operation; high operating temperature; poor heat dissipation, air circulation around the transmission is limited; exhaust system is too close to the transmission; Running at high speed; Heavy-duty climbing too long and steep; Poor oil quality, leakage, etc., will make the transmission oil temperature rise above 120 °C, when the oil temperature exceeds 120 °C, the oil will quickly oxidize and lose lubrication As a result, parts of the transmission are damaged and work fails. The addition of oil pumps and radiators to the transmission increases the flow and cooling of the oil, allowing the oil temperature to drop to normal temperatures to extend the life of the lubricant and the life of the transmission. The following describes the conditions and precautions for radiators installed in the EATON transmission, and provides some references for designers of related products when designing the transmission. Conditions for the transmission to install oil pumps and radiators: Overdrive transmissions with an engine speed of 400 kW or more are recommended to install oil cooling.
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