Eclipse 500 System Manual page 188

Section 8. Engines & Fire Protection
to the fuel tank under pressure as "motive" fuel to operate the ejector pumps in each
fuel tank.
FMU drains on the bottom portion of the engine are subject to very small leakage on
a constant basis and may have minor fuel drips; however drain holes on the engines
are normally dry.
Fuel temperature in the FMU is monitored by the ACS and FADEC. Should the fuel
temperature exceed 121°C/250°F a L (R) ENG FUEL HOT warning message
appears.
8.5.7 Bleed Air
Two ports on each engine provide bleed air used for ice protection and cabin
pressurization. Bleed air from the outboard port on each engine is routed to the
engine nacelle for engine inlet anti-ice and to the de-ice manifold for leading edge de-
ice boots. Bleed air from the inboard port on each engine is routed to the flow control
valve for heating and pressurization controlled by the climate control system.
8.5.8 Oil System
The engine oil system is completely contained within the engine. Oil is drawn from
the oil tank by an engine-driven oil pump. The pump incorporates a pressure relief
valve to avoid damage during engine starts in cold temperatures. From the oil pump,
the oil passes though a full-flow filter that incorporates a bypass valve and a
differential pressure switch to indicate impending oil filter bypass. Should the
pressure switch indicate an impending bypass a L (R) ENG OIL BYPASS advisory
appears. From the oil filter, oil passes though an air- cooled oil cooler and fuel-oil
heat exchanger, each designed to cool the oil. The air-cooled oil cooler uses bypass
air from the fan section of the engine, while the fuel-oil heat exchanger uses fuel flow
from the sump tanks. Oil then passes through an oil temperature sensor and
pressure sensor, then to the main bearing cavities and the engine accessory
gearbox. Oil returns to the reservoir by gravity and scavenge pumps.
A separate line from the accessory gearbox to the oil tank incorporates a magnetic
chip detector. Metal contamination triggers a L (R) ENG CHIP DETECTED advisory
message to appear. If this detector fails, a L (R) ENG CHIP FAULT advisory appears
and chip detection is unavailable.
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Copyright © — Eclipse Aviation Corporation
Eclipse 5OO Systems Manual
Version 2.0 April 2007