Classroom on demand

Welcome to Classroom on demand, your source for educational materials related to the vertical transportation industry. This site represents the knowledge and expertise of the best engineers and mechanics in the elevator industry, and will help those new to the elevator industry learn about the basic workings of elevator systems, and also will serve as a reference for people with more experience.

Oil Cooler

Oil Temperature is critical for hydraulic power units. Hot oil is caused by friction, and an oil cooler is needed as a remedy. The oil moves from the tank (the red track), through a series of coils (cooled by the fan), and back into the tank (the blue track). The air flows through the radiator coils on the oil cooler where the heat from the hot oil is removed. Then the hot air is vented out of the machine room.

Tags:  hydraulic power unit


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