Dictionary Definition
intake
Noun
1 the process of taking food into the body
through the mouth (as by eating) [syn: consumption, ingestion, uptake]
2 an opening through which fluid is admitted to a
tube or container
User Contributed Dictionary
English
Noun
intake- The place where water or air is taken into a pipe or conduit; -- opposed to outlet.
- The beginning of a contraction or narrowing in a tube or cylinder.
- The quantity taken in; as, the intake of air.
- An act or instance of taking in: an intake of oxygen.
Extensive Definition
An intake is an air intake for an engine. Because the modern
internal
combustion engine is in essence a powerful air pump, like
the exhaust
system on an engine, the intake must be carefully engineered
and tuned to provide the greatest efficiency and power. An
ideal intake system should increase the velocity of the air until
it travels in to the combustion
chamber, while minimizing turbulence and restriction of
flow. This is usually accomplished by flow testing on a flow
bench in the port
design stage. Cars with turbochargers or superchargers which provide
a pressurized intake system, usually have extensive tweaking of the
intake system to improve performance dramatically.
A modern air intake system should have three main
parts, an air filter,
mass flow
sensor, and throttle
body. Many cars today now include a silencer to minimize the noise
entering the cabin. Silencers impede air flow and create turbulence
which reduce total power, so many performance enthusiasts often
remove them.
Production cars have specific length air intakes
to cause the air to vibrate and buffett at a specific frequency to
assist air flow in to the combustion chamber. Aftermarket companies
for cars have introduced larger throttle bodies and air filters to
decrease restriction of flow at the cost of changing the harmonics
of the air intake for a small net increase in power or torque.
BMW is unusual in that
its M line
of performance cars have one throttle body per cylinder, as opposed
to one throttle body for four, six or even eight cylinders for
regular production cars. This is done to increase flow
characteristics and improve throttle
response. Nissan also uses this system in their high
performance models.
Porsche in the
1980s
designed an intake system for their cars that changed the length of
the intake system by alternating between a longer and shorter set
of tubing using a butterfly
valve, creating a small amount of positive pressure which
increased overall performance of the engine.
Alfa Romeo used variable-length intake in their
2.0 Twin Spark engines powering the model 156.
intake in Japanese: インテーク
intake in Irish: ionraon aeir
External links
Synonyms, Antonyms and Related Words
access,
adit, admission, air lock, approach, avails, box office, commissions, corridor, credit, credits, disposable income,
dividend, dividends, earned income,
earnings, entrance, entranceway, entree, entry, entryway, gains, gangplank, gangway, gate, gate receipts, get, gross, gross income, gross
receipts, hall, import, importation, importing, in, income, incoming, infiltration, ingoing, ingress, ingression, inlet, input, insertion, insinuation, interpenetration,
introduction,
introgression,
intrusion, leakage, make, means of access, net, net income, net receipts,
opening, output, passage, passageway, penetration, percolation, proceeds, produce, profits, receipt, receipts, receivables, reception, returns, revenue, royalties, seepage, take, take-in, takings, unearned income,
vestibule, way, way in, yield