Mechanical Definitions |
Ocean Thermal Energy Conversion (OTEC) : It is a method
used to generate electricity which uses the temperature difference
exists between deep and shallow waters to run a heat engine.
|
Octane Requirement : It is fuel octane number which is
required for efficient operation (without knocking or spark
retardation) of an internal combustion engine. |
Oil Dilution Valve : A valve is called oil dilution valve
when it is used to mix gasoline with engine oil to allow easier
starting of the gasoline engine in cold weather. |
Oil Pump : It is usually a gear pump driven by the camshaft
or crankshaft and an internal part of the automotive engine.
It sucks the oil out of the engine's oil pan by a wire mesh
strainer and pumps the oil through an oil filter before it goes
to the bearings. |
Oil Ring : It is a ring which is located at the lower
part of a piston designed to prevent an excess amount of oil
from being drawn up onto the piston during the suction stroke.
In other words, a ring on a journal which is dipping into an
oil bath for lubrication. |
Oleo Strut : It is a type of shock absorber used on aircraft
landing gear which consists of a telescoping cylinder that forces
oil into an air chamber by means of compressing the air. |
Open-circuit Grinding : It is a technique in which material
passes through the grinder without classification of product
and without recycle of oversize lumps. |
Open-cycle Engine : It is an internal combustion engine
in which the working fluid is discharged after one pass through
boiler and engine. |
Opening Die : It is a die head for cutting screws which
opens automatically to release the cut thread. |
Opening Pressure : The pressure at which discharge is
initiated. It is a static inlet pressure. |
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