AIRCRAFT
DA 42 NG AMM
Oil Cooling
Doc # 7.02.15
Rev. 4
79-00-00
Page 1
15 Mar 2018
CHAPTER 79
OIL COOLING
1. General
Each engine has the usual wet-sump lubrication system. The bottom part of the engine crankcase
makes the sump. An oil filler tube with a screw cap connects to the crankcase on the left of the engine.
The oil cooler is an integrated oil water heat exchanger which is located under the oil filter case and
is part of the engine.
The oil breather system has an oil separator located under the injector cap. A flexible hose at the rear
of the oil separator vents blow-by gases and any remaining oil mist overboard. A small hose connects
the bottom of the oil separator to the oil sump.
To protect the breather system from blockage due to icing of the moistured blow by gases an engine
integrated over pressure valve is provided below the injector cover.
An oil pump in the engine takes oil from the sump. The oil flows through a filter to the oil water heat
exchanger. Air passing through the oil cooler cools the oil. The cool oil returns to the engine. Oil
galleries in the engine take the oil to all bearings.
The gearbox oil is cooled via airflow over the gearbox housing.
If MÄM 42-600 is installed, additional aluminum fins are installed to the gearbox housing to enhance
cooling. On top of the aluminum fins a composite duct with an air inlet and an air outlet is installed.
Refer to Figure 1.
Summary of Contents for DA 42 NG
Page 933: ...AIRCRAFT DA 42 NG AMM Fuel Doc 7 02 15 Rev 4 28 TITLE Page 1 15 Mar 2018 CHAPTER 28 FUEL ...
Page 1459: ...AIRCRAFT DA 42 NG AMM Lights Doc 7 02 15 Rev 4 33 TITLE Page 1 15 Mar 2018 CHAPTER 33 LIGHTS ...
Page 1711: ...AIRCRAFT DA 42 NG AMM Doors Doc 7 02 15 Rev 4 52 TITLE Page 1 15 Mar 2018 CHAPTER 52 DOORS ...
Page 1853: ...AIRCRAFT DA 42 NG AMM Wings Doc 7 02 15 Rev 4 57 TITLE Page 1 15 Mar 2018 CHAPTER 57 WINGS ...
Page 2071: ...AIRCRAFT DA 42 NG AMM Engine Doc 7 02 15 Rev 4 72 TITLE Page 1 15 Mar 2018 CHAPTER 72 ENGINE ...
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