Volvo Penta only uses liquid-cooled engines. The cooling system comprises a cooling water system and a cooling air system. The objective of the system is to lead heat from the engine to the surrounding atmosphere. Around 40 % of fuel energy is used to perform mechanical work, while the rest is lost as heat to the coolant and through the exhaust.
Volvo Penta engine sound power levels are measured in a semi echo-free chamber. The ceiling and walls are covered with sound absorbing wedges. The engine is placed on a hard, reflection floor. By using the chamber, sound propagation equivalent to open field conditions is ensured.
Volvo TAD734GE engine DU is an computerized instrument panel which shows engine working values on an LCD screen. In the display it is possible to show multiple windows with different information, i. g. engine rpm, coolant temperature, fuel consumption and fault messages.
The engine and transmission are connected in the flywheel housing and have a common mounting in the chassis, i.e. engine mounting. It is important for engine function that the engine mounting and its characteristics be configured. Configuration also has great significance for vehicle stability and driver's cab noise levels. Volvo Penta has four mounts for its engines.
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