Engine mechanical components system

engine system

1. Engine Mechanical Components System @ jnt

2. Three Main Component Parts

3. Cylinder Head In an internal combustion engine, the cylinder head sits above the cylinders on top of the cylinder block. It closes in the top of the cylinder, forming the combustion chamber. This joint is sealed by a head gasket.

4. Cylinder Head

5. Engine Block/Cylinder Block A  cylinder block  is the structure which contains the  cylinder , plus any  cylinder  sleeves and coolant passages. In the earliest decades of internal combustion  engine  development,  cylinders  were usually cast individually, so  cylinder blocks  were usually produced individually for each  cylinder .

6. Engine Block/Cylinder Block

7. Oil Pan The  oil pan  is attached to the bottom of the  engine  with bolts and is the reservoir for  oil  that gets pumped throughout the  engine  to lubricate, clean and cool moving parts. The  pan  is usually made of steel or aluminum and typically holds from four to six quarts of  oil , depending on the  engine . ...

8. Oil Pan

9. External Parts

10. Starter Motor A starter is a device used to rotate an internal-combustion engine so as to initiate the engine's operation under its own power. Starters can be electric, pneumatic, or hydraulic. In the case of very large engines, the starter can even be another internal-combustion engine.

11. Starter Motor

12. Alternator Alternators are used in modern automobiles to charge the battery and to power the electrical system when its engine is running. Until the 1960s, automobiles used DC dynamo generators with commutators. With the availability of affordable silicon diode rectifiers, alternators were used instead

13. Alternator

14. Radiator Radiators are heat exchangers used for cooling internal combustion engines, mainly in automobiles but also in piston- engined aircraft, railway locomotives, motorcycles, stationary generating plant or any similar use of such an engine.

15. Radiator

16. Radiator Hose Your engine has two  radiator hoses : an inlet  hose , which takes the hot engine  coolant  from the engine and transports it to the  radiator , and an outlet  hose , which transports the engine  coolant  from the  radiator  to the engine.

17. Radiator Hose

18. Water Pump A  water pump  is vital to a  car  engine's operation because it ensures the coolant keeps moving through the engine block, hoses and radiator, and maintains an optimum operating temperature. It is driven by a serpentine belt (aka accessory belt or auxiliary belt) from the crankshaft pulley.

19. Water Pump

20. Engine Fan A  fan  clutch is a thermostatic  engine  cooling  fan  that can freewheel at low temperatures when cooling is not needed, allowing the  engine  to warm up faster, relieving unnecessary load on the  engine . As temperatures increase, the clutch engages so that the  fan  is driven by  engine  power and moves air to cool the  engine .

21. Engine Fan

22. Oil Filter An  oil filter  is a  filter  designed to remove contaminants from engine  oil , transmission  oil , lubricating  oil , or hydraulic  oil . ... Modern engine  oil  filters tend to be "full-flow" (inline) or "bypass".

23. Oil Filter

24. Dip Stick The most familiar example is the oil level  dipstick  found on most internal combustion engines. Other kinds of dipsticks are used to measure everything from fuel levels to the amount of beer left in an ale cask

25. Dip Stick

26. Fuel Pump Fuel pumps pump  gasoline from the  vehicle's fuel  tank to the engine and also distribute  fuel  under low pressure to the carburetor or to the  fuel  injection system under higher pressure. Carburetor engines utilize low pressure  pumps , which are located outside of the  fuel  tank.

27. Fuel Pump

28. Engine Belt A serpentine belt is a single, continuous belt used to drive multiple peripheral devices in an automotive engine, such as an alternator, power steering pump, water pump, air conditioning compressor, air pump, etc. The belt may also be guided by an idler pulley and/or a belt tensioner

29. Engine Belt

30. Crankshaft Pulley A  crankshaft pulley , also called a harmonic balance wheel or  crankshaft  sheave, is a grooved, wheel-shaped device that connects directly to the vehicle's  crankshaft . ... The  crankshaft pulley  typically connects to other car components via accessory belts.

31. Crankshaft Pulley

32. Fuel Filter A  fuel filter  is a critical part of this system as it protects your engine from harmful debris. The  fuel filter  screens dirt and rust particles from the  fuel , keeping them from entering the engine and causing damage. ... Unfiltered  fuel  can contain vast quantities of contamination like paint chips, dirt and rust.

33. Fuel Filter

34. Condenser AC The  air-conditioning condenser  is a radiator positioned between the  car's  grille and the engine-cooling radiator in which the gaseous refrigerant sheds heat and returns to a liquid state. The liquid refrigerant flows to the evaporator inside the dashboard, where it cools the cabin.

35. Condenser AC

36. AC Compressor The  compressor  is the power unit of the  air-conditioning  system that puts the refrigerant under high pressure before it pumps it into the condenser, where it changes from a gas to a liquid. A fully functioning  compressor  is necessary for the  air-conditioning  system to provide peak performance.

37. AC Compressor

38. Intake Manifold In automotive engineering, an inlet manifold or intake manifold is the part of an engine that supplies the fuel/air mixture to the cylinders. The word manifold comes from the Old English word manigfeald and refers to the multiplying of one into many.

39. Intake Manifold

40. Exhaust Manifold In automotive engineering, an exhaust manifold collects the exhaust gases from multiple cylinders into one pipe. The word manifold comes from the Old English word manigfeald and refers to the folding together of multiple inputs and outputs.

41. Exhaust Manifold

42. Exhaust Pipe An  exhaust  system is usually piping used to guide reaction  exhaust  gases away from a controlled combustion inside an engine or stove. The entire system conveys burnt gases from the engine and includes one or more  exhaust pipes . ... Cylinder head and  exhaust  manifold. A turbocharger to increase engine power.

43. Exhaust Pipe

44. Catalytic Converter A catalytic converter is an exhaust emission control device that reduces toxic gases and pollutants in exhaust gas from an internal combustion engine into less-toxic pollutants by catalyzing a redox reaction.

45. Catalytic Converter

46. Internal Parts

47. Connecting Rod A  connecting rod , also called a  con rod , is the part of a  piston  engine which  connects  the  piston  to the crankshaft. Together with the crank, the  connecting rod  converts the reciprocating motion of the  piston  into the rotation of the crankshaft.

48. Connecting Rod

49. C rankshaft A  crankshaft  is a rotating shaft which (in conjunction with the connecting rods) converts reciprocating motion of the pistons into rotational motion.  Crankshafts  are commonly used in internal combustion engines and consist of a series of cranks and crankpins to which the connecting rods are attached.

50. C rankshaft and its parts

51. Camshaft A  camshaft  is a rotating object— usually made of metal— that contains pointed cams, which converts rotational motion to reciprocal motion.  Camshafts  are used in internal combustion engines (to operate the intake and exhaust valves), mechanically controlled ignition systems and early electric motor speed controllers.

52. Camshaft and it’s parts

53. Piston A  piston  is a moving disk enclosed in a cylinder which is made gas-tight by  piston  rings. The disk moves inside the cylinder as a liquid or gas inside the cylinder expands and contracts. A  piston  aids in the transformation of heat energy into mechanical work and vice versa.

54. Piston and it’s parts

55. Intake Valve a valve that controls the passage of fluid or air into a pipe, channel, or duct.

56. Intake Valve

57. Exhaust Valve An  exhaust valve  is a  valve  that releases burned gases from a cylinder. ... As pressure increases during compression and combustion, a small amount of air-fuel mixture is forced around the edges of the  exhaust valve  and between the  valve  and  valve  seat.

58. Exhaust Valve

59. Valve Springs Valve springs  play an important role in controlling the breathing in internal combustion engines. The  valves  are mechanically opened by a camshaft, via  valve  lifters or tappets, and closed by the  valve springs . The  valve springs  perform the following functions; Lifting the weight of the  valve .

60. Valve Springs

61. Push Rod An overhead valve (OHV) engine, sometimes called a  pushrod  engine, is a piston engine whose valves are located in the cylinder head above the combustion chamber. This contrasts with earlier flathead engines, where the valves were located below the combustion chamber in the engine block.

62. Push Rod

63. Valve Lifter A  hydraulic tappet , also known as a  hydraulic valve lifter  or  hydraulic  lash adjuster, is a device for maintaining zero  valve  clearance in an internal combustion engine. Conventional solid  valve lifters  require regular adjusting to maintain a small clearance between the  valve  and its rocker or cam follower.

64. Valve Lifter

65. Rocker Arm A  rocker arm  (in the context of an internal combustion engine of automotive, marine, motorcycle and reciprocating aviation types) is an oscillating lever that conveys radial movement from the cam lobe into linear movement at the poppet valve to open it.

66. Rocker Arm

67. Rocker Arm Assembly

68. Main Cap Bearings In a piston engine, the main bearings are the bearings which hold the crankshaft in place and allow it to rotate within the engine block. Main bearings are usually plain bearings or  journal bearings , held in place by the engine block and bearing caps.

69. Main Cap Bearings

70. Main Cap The  engine's  oil pump sends pressurized oil through holes drilled through the crankshaft to the bearing surface. ... They're designed to allow a thin film of oil to flow through the clearance between the bearing and the crankshaft journal.

71. Main Cap

72. Connecting Rod Bearings Connecting rod bearings  provide rotating motion of the crank pin within the  connecting rod , which transmits cycling loads applied to the  piston .  Connecting rod bearings  are mounted in the Big end of the  connecting rod . A  bearing  consists of two parts (commonly interchangeable).

73. Connecting Rod Bearings

74. Connecting Rod Cap A  rod cap  is the removable section of a two-piece  connecting rod  that provides a bearing surface for the crankpin journal. The  rod cap  is attached to the  connecting rod  with two  cap  screws for installation and removal from the crankshaft.

75. Connecting Rod Cap

76. Oil Pump The oil pump in an internal combustion engine circulates engine oil under pressure to the rotating bearings, the sliding pistons and the camshaft of the engine. This lubricates the bearings, allows the use of higher-capacity fluid bearings and also assists in cooling the engine

77. Oil Pump

78. Thermostat Any liquid-cooled  car  engine has a small device called the  thermostat  that sits between the engine and the radiator. ... Its job is to block the flow of coolant to the radiator until the engine has warmed up. When the engine is cold, no coolant flows through the engine.

79. Thermostat

80. Oil Passage When  oil  is poured into an  engine  it settles in the  oil  pan, also known as the sump, at the bottom of the  engine . ... It then flows through  oil passages  (small drilled holes) in the crankshaft to lubricate the piston connecting  Oil  pump rod bearings.

81. Oil Passage

82. Water Passage The flow of  water  divides in the  water  outlet manifolds, goes to the exhaust manifolds, and through the jacket- water  outlet. The majority of the  water  is discharged to the jacket- water  outlet. ...  Water  from the exhaust manifolds enters cored  passages  in the  engine  front cover and returns to the pump.

83. Water Passage

84. Oil Strainer Oil strainers  have a very important function and they must be durable in design... The  engine oil strainer  is designed to prevent debris and contaminants from entering the vehicle's  engine oil .

85. Oil Strainer

86. Cylinder The  cylinder  is the space through which the piston travels, propelled to the energy generated from the combustion of the air/fuel mixture in the combustion chamber. In an air-cooled  engine , the walls of the  cylinders  are exposed to the airflow, to provide the primary method of cooling to the  engine .

87. Cylinder

88. Combustion Chamber A  Combustion Chamber  is the area within the Cylinder where the fuel/air mix is ignited. As the Piston compresses the fuel/air mix and makes contact with the Spark Plug, the mixture is combusted and pushed out of the  Combustion Chamber  in the form of energy.

89. Combustion Chamber

90. Timing Gear The purpose of  timing gears  is to allow the camshaft and crankshaft to turn the  timing  chain. The crankshaft turns to move pistons up and down inside the cylinders. The camshaft turns to allow intake and exhaust valves on the cylinders to open and close. These components are important for proper  engine timing .

91. Timing Gear

92. For Gasoline Engine

93. Carburetor A carburetor or carburettor is a device that mixes air and fuel for internal combustion engines in the proper air–fuel ratio for combustion. It is sometimes colloquially shortened to carb in the UK and North America or carby in Australia.

94. Carburetor

95. Distributor A  distributor  is an enclosed rotating shaft used in spark-ignition internal combustion engines that have mechanically timed ignition. The  distributor's  main function is to route secondary, or high voltage, current from the ignition coil to the spark plugs in the correct firing order, and for the correct amount of time.

96. Distributor

97. Contact Point A  contact  breaker (or " points ") is a type of electrical switch, and the term typically refers to the switching device found in the distributor of the ignition systems of spark-ignition internal combustion engines.

98. Contact Point

99. Spark Plug A spark plug is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture by an electric spark, while containing combustion pressure within the engine.

100. Spark Plug

101. Ignition Coil Ignition coils  are an electronic engine management component that are a part of the vehicle's  ignition  system. The  ignition coil  functions as an induction  coil  that converts the vehicle's 12 volts into the several thousand that are required to jump the spark plug gap and ignite the engine's air-fuel mixture.

102. Ignition Coil

103. Voltage Regulator A  VOLTAGE REGULATOR  regulates the charging  voltage  that the alternator produces, keeping it between 13.5 and 14.5 volts to protect the electrical components throughout the  vehicle . ... The most common cause is a broken alternator drive belt. The alternator is driven by a belt that is powered by the rotation of the engine.

104. Voltage Regulator

105. For Diesel Engine

106. Injection Pump An Injection Pump is the device that pumps diesel into the cylinders of a diesel engine. Traditionally, the injection pump was driven indirectly from the crankshaft by gears, chains or a toothed belt that also drives the camshaft. It rotates at half crankshaft speed in a conventional four-stroke diesel engine.

107. Injection Pump

108. Fuel Injector Fuel injectors  spray  fuel  into a car's engine using electronic controlled valves, capable of opening and closing many times a second. They have an atomising nozzle that distributes the petrol or diesel evenly, for optimum combustion and efficiency. ... A car generally has one  fuel injector  per cylinder.

109. Fuel Injector

110. Fuel Line A  fuel line  is a  hose  used to bring  fuel  from one point in a vehicle to another or from a storage tank to a vehicle. It is commonly made of reinforced rubber to prevent splitting and kinking.

111. Fuel Line

112. Heater Plug/ Glow Plug A glowplug is a heating device used to aid starting diesel engines. In cold weather, high speed diesel engines can be difficult to start because the mass of the cylinder block and cylinder head absorb the heat of compression, preventing ignition. Pre-chambered engines use small glowplugs inside the pre-chambers

113. Heater Plug/ Glow Plug