crankcase breather

crankcase breather

[′kraŋ·kās ‚brēth·ər]
(mechanical engineering)
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References in periodicals archive ?
According to the NTSB, the #6 piston failed, allowing combustion gases to pressurize the engine crankcase, forcing its oil overboard via the crankcase breather tube.
We're looking to maintain oil feed and drain, and also look at the engine breathing to ensure that the oil at the top of the engine and that drawn from the crankcase breather always drains back into the sump.
Engineers modified the Hayabusa engine's crankcase breather system to include reed valves to prevent pressure waves generated in the airbox from reaching the crankcase itself, thus reducing mechanical losses.
Leftover fuel--blow by--is expelled through the positive crankcase breather valve.
The engine design also incorporates either a dry or water-cooled exhaust manifold and a closed crankcase breather with oil separator and deep oil sump.
When Marv finally received the kit, he discovered there was no crankcase breather on the model.
Taking a closer look at the air management system, it consists of an intake air filter, the Garrett EVRT, charge-air cooler, aluminum intake manifold, EGR cooler, EGR valve and closed crankcase breather,
The only initial, abnormal indication noted from the broken exhaust valve guides was excessive engine oil blowing through the engine crankcase breather. The engine operated normally with no apparent power loss or abnormal indications of EGT, TIT or oil pressure/temperature.
EPA and other major engine emissions standards, incorporating cooled EGR, a diesel particulate filter, diesel oxidation catalyst and closed crankcase breather system.
[check] Check crankcase breather tube for a relief opening so freezing moisture won't cause over pressure, leading to loss of oil.
"The enhancements for Tier 3 include the common rail fuel system, as well as an improved crankcase breather system.