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Automobile
Engine |
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Automobile engine refers to
a fuel-consuming machine or device that is used for propelling
automobiles, airplanes, tractors, buses, two wheelers, cars etc.
Engine forms an integral component of a vehicle that transforms
chemical energy in fuel into mechanical energy for power. Usually,
automobile engines make use of four strokes to turn chemical energy
into mechanical energy with the help of combustion of gases or
hydrocarbon fuel.
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Components
of Automobile engine 
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Camshaft is a type of rotating device or apparatus used in piston
engines for propelling or operating poppet valves. Camshaft
comprises of series of cams that regulates the opening and closing
of valves in the piston engines. The camshaft works with the help of
a belt, chain and gears.
The different types of camshafts
used in the automobile engine are:
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Crankshaft is a device, which converts the up and down
movement of the piston into rotatory motion. This shaft is presented
at the bottom of an engine and its main function is to rotate the
pistons in a circular motion. Crankshaft is further connected to
flywheel, clutch, main shaft of the transmission, torque converter
and belt pulley.
The main components of crankshaft
are:
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Connecting rods are made of metals,
which are used, for joining a rotating wheel to a reciprocating
shaft. More precisely, connecting rods also referred to as con rod
are used for conjoining the piston to the crankshaft.
Connecting rods
can be made of steel, aluminum, titanium, iron and other types of
metals.
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Cylinder heads refers to a detachable
plate, which is used for covering the closed end of a cylinder
assembled in an automotive engine. It comprises of combustion
chamber valve train and spark plugs. Different types of automobiles
have different engine configurations such as Straight engine has
only one cylinder head while a engine has two cylinder heads.
The key components of cylinder
heads are:
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Engine belts are the bands made of
flexible material used for connecting or joining two rotating shafts
or pulleys together. These belts work in coordination with wheels
and axles for transferring energy. When the wheels or shafts are
positioned at extremely different angles, then the engine belts have
the ability to change the direction of a force. Engine pulley is a
type of machine or a wheel having either a broad rim or groomed rim
attached to a rope or chain for lifting heavy objects.
A wide variety of
engine belts are used in an automobile engine such as:
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Oil is one of the necessities of
an automobile engine. Oil is distributed under strong pressure to
all other moving parts of an engine with the help of an oil pump.
This oil pump is placed at the bottom of an engine in the oil pan
and is joined by a gear to either the crankshaft or the camshaft.
Near the oil pump, there is an oil pressure sensor, which sends
information about the status of oil to a warning light or meter
gauge.
The different parts of engine oil
systems include
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Automobile engine valves are devices
that regulate the flow of air and fuel mixture into the cylinder and
assist in expelling exhaust gases after fuel combustion. They are
indispensable to the system of coordinated opening and closing of
valves, known as valve train. Engine valves are made from varied
materials such as Structural Ceramics, Steels, Superalloys and
Titanium alloys. Valve materials are selected based on the
temperatures and pressures the valves are to endure.
The primary components of engin
valve are:
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An engine block is a metal casting
that serves as a basic structure on which other engine parts are
installed. A typical block contains bores for pistons, pumps or
other devices to be attached to it. Even engines are sometimes
classified as small-block or big-block based on the distance between
cylinder bores of engine blocks. Engine blocks are made from
different materials including Aluminum alloys, gray cast iron,
ferrous alloys, white iron, gray iron, ductile iron, malleable iron,
etc.
The various types of automobile
engine block include:
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An engine pulley is a wheel with a
groove around its circumference, upon which engine belts run and
transmit mechanical power, torque and speed across different shafts
of an engine. An engine houses pulley units of different sizes for
cam shaft drive, accessory drive and timing belts. Molded plastics,
iron and steel are normally used to make engine pulleys.
The primary components of engin
pully are:
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Automotive mounting bolts
secure different automobile components viz. air bags, brake
fittings, etc. on to a supporting structure. Likewise, engine
mounting bolts help secure an automobile's engine in place. Based on
usage, a number of materials such as alloys, silicon bronze, bronze,
ceramic, carbon, aluminum, nylon, phosphor bronze, nickel silver,
plastic, titanium, zirconium and stainless steel are utilized to
produce these bolts.
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A harmonic balancer is a circular
component connected to the crankshaft of an engine. It comprises a
hub, an outer weight ring and a layer of flexible rubber in between.
Also known by alternative names viz. torsional damper, crankshaft
damper, crank pulley damper, or vibration damper, its purpose is to
absorb and diffuse crankshaft vibrations, thus prevent the
crankshaft from damage. A range of materials such as Alloys, Steel
Elastomer, Black Zinc Chromate, Steel, Nodular Iron, or Aluminum are
used to manufacture it.
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Piston is a cylindrical plug which is used for moving up and down
the cylinder according to the position of the crankshaft in its
rotation. Piston has multiple uses and functions. In the case of
four-stroke engine the piston is pulled or pushed with the help of
crankshaft while in the case of compression stroke, piston is pushed
with the powerful explosion of mixture of air and fuel.
Piston comprises of several
components namely:
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Valve train consists of various
components and parts, which enables valves to operate and function
smoothly. Valve train comprises of three main components: camshafts,
several components which are used for turning the camshafts
rotating movement into reciprocating movement, and lastly valves and
its various parts.
The primary components of valve
train are:
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