﻿GET_GEVOMechL2_03_01_01_94 - ANIMATION Screen
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Describe how water flows through the split cooling water system.

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The split cooling water system operates within established conditions referred to as Modes.

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During Mode 3 operation, the engine water pump draws water from the water storage tank and forces it through the turbocharger and engine.

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The combustion process in the engine heats the water.

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The heated water exits the engine and flows to the univalve.

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The univalve directs the heated water from the engine through two paths.

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The first path is through the oil cooler and the water-based intercooler, and then back to the storage tank, and the second path is directly to the water storage tank.

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The water through the oil cooler and the water-based intercooler heats the lube oil and intake manifold air, respectively.

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During Mode 2 operation, the engine water pump draws water from the water storage tank and forces it through the turbocharger and engine.

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From the engine, the heated water flows to the univalve.

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The univalve directs the heated water from the engine through two paths.

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The first path is through the oil cooler and the water-based intercooler, and then back to the water storage tank.

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This path either warms or cools the lubricating oil and intake manifold air.

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The second path is through the radiator and its sub-coolers, and then back to the water storage tank.

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A motor-driven radiator fan pushes air through the radiator to cool the engine water.

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Varying the fan motor speed from off to 1/4, 1/2, or full engine speed controls the actual amount of cooling that occurs.

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During Mode 1 operation, the engine water pump draws water from the water storage tank and forces it through the turbocharger and engine.

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From the engine, the water flows to the univalve.

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The univalve directs water from the engine to the radiator.

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The radiator has two sections: main and sub-cooler.

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The majority of the water flows through the "one-pass" main section back to the water storage tank.

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The remaining water continues through the "two-pass" sub-cooler section for further cooling.

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Water from the sub-cooler section is then channeled by the univalve to flow through the oil cooler and the water-based intercooler to provide additional cooling.

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A motor-driven radiator fan pushes air through the radiator to cool the engine water.

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Varying the fan motor speed from off to 1/4, 1/2, or full engine speed controls the amount of cooling.


