Starlight generator

Volvo Power Generation   Installation Guidance EMS (Engine control system) EMS 2 stands for “ Engine Management System ” and is an electronic system with CAN communications (Controller Area Network) for control of Volvo diesel engines . The system has been developed by Volvo Penta and includes fuel control and diagnosis function. The system consists of a control module, six unit injectors, a number of sensors that supply the control module with measurements, sockets for diagnosis and functional checks. The engine can be connected to a communication interface comprising a CAN-link and a serial link. CAN (Controller Area Network) The CAN J1939 link handles all communication between the engine control module EMS 2 and the CIU, in addition to the diagnostics that are handled by the so called J1708/J1587 link. The CAN link is much faster than the J1708/J1587 link. The CAN link has been prepared to connect to other components with SAE J1939 protocol such as instru...

Volvo Diesel Engine   Cavitation Pump suction capacity depends on coolant pressure and temperature. An increase in coolant temperature reduces suction capacity. In order to avoid cavitation there must be a static pressure on the suction side of the pump. To achieve this there must be a hose from the expansion tank to the suction side of the pump. Cavitation occurs when static coolant pressure inside the pump falls to coolant vapor pressure. Some of the coolant then vaporizes and vapor bubbles are formed. These vapor bubbles follow the coolant a little way and when they reach an area in the pump with higher pressure they implode. A pressure pulse is formed at every implosion and if this is repeated often enough mechanical damage to pump materials may occur (above all to the impeller). At the same time, pump performance is impaired. Thermostat A thermostat is installed in the cooling system to maintain coolant temperature within a certain temperature range. The ...