Pratica di Shadowing: Car Engine Parts & Their Functions Explained in Details | The Engineers Post - Impara a parlare inglese con i video
Creazione lezione...
1
An engine is a machine designed to convert one form of energy into mechanical energy.
2
Heat engines burn fuel to create heat which is then used to do work.
3
It is a complex machine built to convert heat from burning gas into the force that turns the wheels.
4
The chain of reactions that achieve that objective is set in motion by a spark, which ignites a mixture of petrol,
5
vapor, and compressed air inside a momentarily sealed cylinder, and causes it to burn rapidly.
6
The engine has two types, one is the internal combustion engine, and another one is the external combustion engine.
7
The internal combustion engine is those heat engines that burn their fuel inside the engine cylinder.
8
External combustion engines are those heat engine that burns their fuel outside the cylinder.
9
The engine is one of the most essential parts of the automobile industries
10
or we can also say that the engine is the heart of an automobile.
11
So in this video we'll take a look at the function and construction of each engine parts of an internal combustion engine.
12
So be sure to like this video subscribe to the channel
13
and press the bell icon to get notifications of our new videos.
14
The main parts of an car engine are cylinder block,
15
cylinder head, oil pan, Manifolds Gasket
16
And Piston A piston ring Piston
17
pin Connecting rod Crankshaft Camshaft Flywheels Rod bearing Main bearings And bearing caps
18
Now let's take a look at each of engine parts with details starting with cylinder block.
19
It is the basic framework for the engine and one of the main part of an engine.
20
A cylinder block consists of three parts.
21
The cylinder in which the piston slid up and down, the port or opening for the valves, the passages for the flow of cooling water.
22
The cylinder block is usually made of gray cast iron
23
or aluminium and its alloys while the crank case is fixed to its bottom.
24
Apart from these other parts like timing gear, water pump, ignition distributor, flywheel,
25
fuel pump are also attached to it.
26
Coolant passages are provided in the cylinder walls for the circulation of cooling waters.
27
Cylinder block also carries lubrication oil to various components through drilled passages that is called oil galleries.
28
Cylinder head.
29
The cylinder head is another main part of an engine.
30
It is a joint between the cylinder head and cylinder block.
31
It is usually made up of cast iron and aluminium alloy.
32
The cylinder head is attached to the cylinder block using studs fixed to the block gaskets, which are used to provide a tight leak proof joint between the head and block.
33
The cylinder head contains a combustion chamber above each cylinder, and it also contains valve guides,
34
valve seats, ports, coolant jackets, and threaded holes, four spark plugs.
35
It incorporates passages for the flow of cooling water.
36
There are three different types of cylinder head is available that depends upon the valve and port layout.
37
Loop flow type, offset cross flow type and inline cross flow type.
38
In the loop flow type, the inlet and the exhaust manifolds are on the same side, which facilitates preheating of the intake air.
39
In the offset cross flow type, the inlet and the exhaust manifolds are placed on different sides of the cylinder head.
40
In the inline cross flow type, the valve is positioned transversely and usually inclined to each other,
41
while the inlet and the exhaust manifolds are on different sides of the cylinder head.
42
This arrangement gives better performance, but it is costlier.
43
Crank case.
44
The oil pan and the lower part of the cylinder block together are called the crankcase.
45
It is the bottom portion of the cylinder block, in which the crankshaft is fitted.
46
This is a rigid construction made of grey cast iron or aluminium.
47
Either it can be cast integrally with the block, or can be cast separately, and attached to the block with bolts.
48
The crankcase is shaped simply like a box, having no bottom surface.
49
The function of the crankcase is to provide support for the main journals and bearing of the crankshaft,
50
rigidly maintaining the alignment of their axes of rotation under various engine loads.
51
Oil Pan The bottom half of the crankcase is called the oil pan or sump.
52
It is attached to the crankcase through set screws and with a gasket to make the joint leak proof.
53
The oil pan serves as a reservoir for the storage, cooling, and ventilation of engine lubricating oil.
54
At the bottom of the oil sump, a drain plug is provided to drain out the dirty oil, at the time of oil replacement.
55
Generally, the sump is made of pressed steel sheet, or aluminium alloy casting is also used.
56
The oil pump in the lubricating system draws oil from the oil pan, and sends it to all working parts in the engine.
57
The oil drains off and runs down into the pan.
58
Thus, there is a constant circulation of oil between the pan and the working parts of the engine.
59
Manifolds There are separate sets of pipes attached to the cylinder head, which carries the air -fuel mixture and the exhaust gases, these are called manifolds.
60
It is generally made of cast iron, so that it can withstand the high temperature of the exhaust gases.
61
Gaskets Gaskets are used to provide a tight fitting joint between two surfaces.
62
Gaskets are found in the joint between the cylinder head and the cylinder block, between the crankcase and oil pan,
63
and in between the cylinder block and manifold.
64
materials used for gaskets are cork asbestos rubber gaskets produced by
65
the fuel pro USA are cylinder head gaskets oil pan gaskets manifold gaskets
66
and pump gaskets cylinder liners the cylindrical shape liners are used to avoid the cylinder wear.
67
It is one of the most important functional part to make up the interior of an engine.
68
Cylinder liners can be replaced after they are worn out.
69
These are made of special alloy iron containing silicon, manganese, nickel and chromium.
70
Usually these are cast centrifugally.
71
These liners resistance to wear and corrosion and are the oil hardening type that offers considerably longer life for the engine.
72
There are two types of cylinder liners will be available, they are dry liners and wet liners.
73
Dry liner is made in the shape of a barrel with a flange at the top which keeps it into position.
74
The entire outer surface bears against the cylinder block casting and hence these are machined accurately at both outer and interfaces.
75
Wet liners will be in direct contact with the cooling water at their outer face.
76
Because of this, these liners need not be machined very accurately at the outer surface.
77
However, they have been machined accurately at the inner surface.
78
Pistons.
79
These are the most important engine parts compared to others.
80
The piston is a cylindrical plug that moves up and down in the cylinder.
81
It helps to convert pressure energy obtained by the combustion of fuel into useful mechanical power
82
and it transfer this power to the crankshaft through the connecting rod.
83
The highest position of the piston reaches in the cylinder is called the top dead center
84
and the lowest position it reaches is called the bottom dead center.
85
It is provided with about three to five piston rings that provides a good seal between the cylinder wall and piston.
86
The efficiency and economy of the engine is primarily depend on the working of the piston.
87
The material used for the piston is mainly cast iron and aluminium alloy.
88
It may be either cast or forged.
89
The piston is usually small in diameter than the bore of the cylinder.
90
The space between the cylinder and the cylinder wall is called the piston clearance.
91
This piston clearance provides a space for a layer of lubricant between the piston
92
and cylinder wall to reduce friction generally pissed Piston clearance is 0 .025 mm to 0 .100 mm.
93
Piston Rings
94
The piston rings are fitted into the grooves of the piston to maintain a good seal between the piston
95
and the cylinder wall.
96
The function of piston rings is to form a seal for
97
the high -pressure gases from the combustion chamber entering into the crankcase.
98
The material generally used for piston rings is fine -grained alloy cast iron containing silicon and manganese.
99
It has good heat and wear -resisting qualities.
100
Mainly there are two types of piston rings available.
101
They are compression rings and oil control rings.
102
The number of piston rings used is about two to four compression rings and one to two oil control ring was used.
103
Connecting Rod It is fitted in between the piston and crankshaft.
104
The main function of the connecting rod is to convert the
105
reciprocating motion of the piston into the rotary motion of the crankshaft.
106
Connecting rod in an IC engine is must be light and strong enough to withstand stress and twisting forces.
107
It usually has I -beam cross section and is made of alloy steel of duralumin by drop forging.
108
The small end of the connecting rod has either a solid eye used to connect the piston by the piston pin.
109
The big end of the connecting rod is always split and it is used to connect the crank pin of the crankshaft.
110
Piston Pin The piston pin is also called wrist pin or gudgeon pin.
111
It is used for connecting the small end of the connecting rod and the piston.
112
It is made hollow to reduce weight and it is made from case hardened steel.
113
Mainly there are three types of piston pins available.
114
They are set screw types piston pin.
115
This pin is fastened to the piston by a set screw.
116
Semi -floating piston pin.
117
It is fastened to the connecting rod with the clamp screw.
118
Fully floating piston pin.
119
The pin floats in both the piston bosses and the small end of connecting rod.
120
It is prevented from coming in contact with the cylinder wall by two circlips.
121
Crankshaft.
122
The crankshaft is the engine component from which the power is taken.
123
It is one of the main power transmission sources in all engine parts.
124
It is the first part of the power transmission system, in which the reciprocating motion of the piston is converted into the rotating motion with the help of connecting rod.
125
The crankshaft is made of casting or forging of heat -treated alloy steel and is machined.
126
A crankshaft consists of crankpins, weds, balancing weight and main journals, and oil holes.
127
The front end of the crankshaft carries three devices.
128
They are a gear that drives the camshaft, the vibration damper to control torsional vibration, and the fan belt pulley.
129
This pulley drives the engine fan, water pump, and generator with a V -belt.
130
The rear end of the crankshaft carries flywheel.
131
The flywheel tends to keep the crankshaft running at constant.
132
Camshaft A camshaft is a shaft on which cams are mounted.
133
A cam is a device that changes the rotary motion of the camshaft into the linear motion of the follower.
134
It is responsible for the opening of the valves.
135
A camshaft has several cams along the length.
136
The camshaft is driven by the crankshaft.
137
And it has twice the gears as many teeth as the gear on the crankshaft
138
and it turns at half the speed of the crankshaft.
139
Camshaft made from forged alloy steel.
140
There are three types of the camshaft drive mechanism.
141
They are gear drive, chain drive and belt drive.
142
Flywheel The flywheel used in a transmission system of a vehicle.
143
A flywheel is a heavy steel wheel attached to the rear end of the crankshaft.
144
The size of the flywheel depends upon the number of cylinders and the construction of the engine.
145
The inertia of the flywheel tends to keep the running of the crankshaft at a constant speed.
146
Engine valves These are essential to control the timing of air fuel mixture, entry into the cylinder, and combustion products out of the cylinders.
147
Engine valves are located at the inlet and outlet opening of the engine cylinder.
148
The valves fit on the valve seats in their closed position.
149
Then please share it with your friends.
150
Subscribe to our channel and press the bell icon to get notification of our new videos.
✨ Video consigliato
B21
132 frasi
How A Car Engine Works
Business EnglishUniversity StudentsWorking Adults
C11
276 frasi
PLC Programming #4: Functions, Function Blocks & Organization Blocks Explained
Business EnglishUniversity StudentsWorking Adults
C12
333 frasi
Basic Introduction To Oil & Gas Well Perforating
Business EnglishUniversity StudentsWorking Adults
C1117 frasi
Anatomy & Physiology: The Ultimate Beginner's Guide | Dr. Bee's Tutorials
Business EnglishUniversity StudentsWorking Adults
C11
59 frasi
How does a Thermal power plant work?
University StudentsWorking Adults
C12
102 frasi
What is Docker? Docker container concept explained || Docker Tutorial 1
Business EnglishUniversity StudentsWorking Adults
C13
263 frasi
Even Valve is Disappointed - Steam Machine Review
Business EnglishUniversity StudentsWorking Adults
C11
7 frasi
Diodes Explained - The basics how diodes work working principle pn junction
Business EnglishUniversity StudentsWorking Adults
C11
40 frasi
The Engineering that Runs the Digital World 🛠️⚙️💻 How do CPUs Work?
Business EnglishUniversity StudentsWorking Adults
C12
12 frasi
Plastic Injection Molding
Business EnglishUniversity StudentsWorking Adults
C11
166 frasi
What's The Best Supercharger? Roots vs Centrifugal vs Twin-Screw vs Electric
Business EnglishUniversity StudentsWorking Adults
C14
291 frasi
How The World's Most Powerful Fighter Jet Engine Is Made
Business EnglishUniversity StudentsWorking Adults
Vocabolario e note di pronuncia per questa lezione
Questa lezione di conversazione di livello C1 si basa sul video “Car Engine Parts & Their Functions Explained in Details”. Le parole che ritornano più spesso: cylinder, piston, engine, oil, crankshaft. Questo video contiene 150 frasi e 2058 parole da ripetere con lo shadowing. Il parlato dura 15:23. Chi parla mantiene un ritmo costante di circa 134 parole al minuto, comodo per lo shadowing. Solo il 72% delle parole rientra nelle 3.000 più comuni dell’inglese, quindi il lessico è impegnativo.
Vocaboli chiave di questo video
Le 15 parole più avanzate del video, con pronuncia e significato:
| Parola | Pronuncia | Significato |
|---|---|---|
| cylinder sostantivo | /ˈsɪləndɚ/ | cilindro |
| piston sostantivo | /ˈpɪstən/ | pistone |
| crankshaft sostantivo | albero a gomiti | |
| gasket sostantivo | /ˈɡæs.kɪt/ | gaschetta, gerlo |
| camshaft sostantivo | /ˈkæmʃæft/ | albero a camme |
| combustion sostantivo | /kəmˈbʌs.t͡ʃən/ | combustione |
| alloy sostantivo | /ˈæ.lɔɪ/ | lega |
| flywheel sostantivo | volano | |
| manifold aggettivo | /ˈmænɪˌfoʊld/ | molteplice, multiforme |
| aluminium sostantivo | /ˌæl.(j)uˈmɪn.i.əm/ | alluminio |
| inlet sostantivo | /ˈɪnlət/ | insenatura, estuario |
| forge sostantivo | /fɔɹd͡ʒ/ | forgia |
| crank sostantivo | /ˈkɹæŋk/ | manovella |
| float verbo | /fləʊt/ | galleggiare |
| clearance sostantivo | /ˈklɪɚ.əns/ | sgombero, repulisti |
I phrasal verb che sentirai
| Parola | Pronuncia | Significato |
|---|---|---|
| make up verbo | /ˌmeɪk ˈʌp/ | comporsi |
| wear out verbo | fare fuori, consumare |
La grammatica di questo video
Le strutture che chi parla usa di più, con le parole esatte del video:
| Struttura | Nel video |
|---|---|
| “Used to” used to + verbo — un’abitudine o uno stato passato che non è più vero | used to do · used to connect |
| Forma passiva be + participio passato — conta ciò che accade, non chi lo fa | is set · is usually made · is fixed |
| Frasi relative who / which + frase — un’informazione in più su una persona o una cosa | heat which is · gaskets, which are |
Pronuncia a cui fare attenzione
- I suoni “sh” e “zh”: camshaft /ˈkæmʃæft/, vibration /vaɪˈbɹeɪʃən/, compression /kəmˈpɹɛʃ.ən/, notification /ˌnoʊtɪfɪˈkeɪʃn̩/, circulation /ˌsɝkjʊˈleɪʃən/
- Parole lunghe — attenzione all’accento: aluminium /ˌæl.(j)uˈmɪn.i.əm/, accurately /ˈæk.jə.ɹɪt.li/, cylindrical /sɪˈlɪndɹɪkəl/, reciprocate /ɹɪˈsɪpɹəˌkeɪt/, notification /ˌnoʊtɪfɪˈkeɪʃn̩/
I suoni difficili per chi parla italiano:
- /h/ — va soffiata, non è muta: harden /ˈhɑɹdn̩/, hollow /ˈhɑloʊ/
- Consonante finale — senza aggiungere una vocale dopo: gasket /ˈɡæs.kɪt/, camshaft /ˈkæmʃæft/, manifold /ˈmænɪˌfoʊld/, exhaust /ɪɡˈzɔst/, inlet /ˈɪnlət/
- /æ/ — più aperta della “e”: gasket /ˈɡæs.kɪt/, camshaft /ˈkæmʃæft/, alloy /ˈæ.lɔɪ/, manifold /ˈmænɪˌfoʊld/, aluminium /ˌæl.(j)uˈmɪn.i.əm/
Come esercitarsi con questo video
- Ascolta tutto il video una volta senza parlare e annota le parole che non conosci.
- Fai shadowing frase per frase a velocità normale, ripetendo ognuna finché il tuo ritmo coincide con quello di chi parla.
- Registrati e confronta con l’originale, facendo attenzione a parole come cylinder, piston, crankshaft.
Cos'è la tecnica dello Shadowing?
Shadowing è una tecnica di apprendimento delle lingue supportata da studi scientifici, originariamente sviluppata per la formazione dei traduttori professionisti e resa popolare dal poliglotta Dr. Alexander Arguelles. Il metodo è semplice ma potente: ascolti un audio in inglese di madrelingua e lo ripeti immediatamente ad alta voce — come un'ombra che segue il parlante con un ritardo di solo 1–2 secondi. A differenza dell'ascolto passivo o degli esercizi di grammatica, lo shadowing costringe il tuo cervello e i muscoli della bocca a elaborare e riprodurre simultaneamente i modelli di discorso reale. La ricerca dimostra che migliora significativamente la precisione della pronuncia, l'intonazione, il ritmo, il discorso connesso, la comprensione dell'ascolto e la fluidità del parlato — rendendolo uno dei metodi più efficaci per la preparazione alla prova di speaking dell'IELTS e per la comunicazione reale in inglese.