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Composition And Function Of Engine Parts
Jun 09, 2017

Composition and function of Engine Parts
Engine Overview:

1, the engine two institutions five systems: crank connecting rod mechanism, gas distribution mechanism, fuel supply system, starting system, ignition system, lubrication system, cooling system.

2, the cylinder working volume: the piston from the top dead point to the bottom dead center, the top of the piston swept the volume.

3, the engine displacement: the engine all the working volume of the cylinder and the sum.

4, compression ratio: the maximum cylinder volume and the ratio of the combustion chamber volume.

5, gasoline engine works: intake, compression, work, exhaust.

6, Engine Parts the engine main performance indicators: power, economy and emissions. Power includes crankshaft speed, effective torque and effective power.

7, gasoline engine working principle of the four steps are: intake, compression, work, exhaust.

Crank Mechanism:

1, the function of the crank link mechanism: the fuel combustion of chemical energy into heat, and then converted into mechanical energy, crankshaft link mechanism can make the gas on the piston top of the pressure into the crankshaft can rotate and external output power.

2, crank connecting rod mechanism: the body group, piston rod group, crankshaft flywheel group.

3, the body group components: cylinder head cover, cylinder head, cylinder pad, cylinder block, oil pan.

4, piston rod group components: piston, piston ring, piston pin, connecting rod, connecting rod bearings.

5, crankshaft flywheel components: crankshaft, flywheel, crankshaft timing gear, crankshaft pulley, front and rear oil seal.

6, the cylinder cover effect: seal the upper part of the cylinder head to prevent oil spills.

7, cylinder head role: used to seal the upper part of the cylinder and with the piston top, cylinder pad and cylinder wall together constitute the combustion chamber.

8, the role of cylinder pad: to prevent leakage, leakage and channeling oil.

9, the role of the cylinder: as the body of the cylinder, the engine work to withstand the gas force, and the cylinder and other parts of the excess heat dissipation to the coolant or air to ensure that the normal operation of the cylinder and other parts.

10, the cylinder block form (cylinder arrangement): inline type, v type, w type, tile type.

11, oil pan: storage of oil and closed oil pan.

12, the piston: cylinder head, cylinder block together constitute the combustion chamber, from the sealing effect, to withstand the high pressure gas cylinder pressure, and the pressure through the piston pin and connecting rod to the crankshaft, to promote the crankshaft rotation.

13, the top of the piston shape: flat top, convex, concave top, forming the top.

14, the type of piston ring: oil ring, air ring.

15, oil ring: scraping oil, cloth oil; auxiliary sealing effect.

16, air ring: sealed, heat, auxiliary scraping oil, cloth oil.

17, the piston pin: connecting rod and piston, and the piston by the gas force to the connecting rod.

18, piston pin types: full floating, semi-floating.

19, connecting rod: connecting the piston and crankshaft, and between the two play a transfer force and the role of conversion movement, the reciprocating linear motion of the piston into the crankshaft rotary motion.

20, crankshaft: the piston rod group came the gas pressure into torque output, drive the engine with the gas, generators and air conditioning and other auxiliary equipment.

21, flywheel: storage of energy, to overcome the other travel resistance, driving crankshaft link mechanism across the top and bottom; to ensure that the crankshaft speed and output torque as even as possible; the engine has to overcome the short time overload capacity.