Tutorial: Physics Topic : Moving parts of combustion engine Prepared by : RNDr. Ondřej Jeřábek Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/04.0002.

Prezentace na téma: "Tutorial: Physics Topic : Moving parts of combustion engine Prepared by : RNDr. Ondřej Jeřábek Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/04.0002."— Transkript prezentace:

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2 Tutorial: Physics Topic : Moving parts of combustion engine Prepared by : RNDr. Ondřej Jeřábek Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/04.0002 je spolufinancován Evropským sociálním fondem a státním rozpočtem České republiky.

3 Moving parts of combustion engines

4 Explanation:  It transmits the movement which is caused by gas expansion during combustion processes  It changes rectilinear movement to rotary one  It transmits rotary movement from engine to gearbox Usage: Car engines, hand car’s engines

5  Crank mechanism:  Crankshaft  Piston rod  Piston pin  Piston rings  Piston  Engine distribution:  Camshaft  Valve rod  Cam follower  Suction and exhaust valve  Types of distributors  OHC  OHV

6  Crankshaft:  It is placed in engine block  Number of bearings at crankshaft determines the number of crankshaft placing  It changes rectilinear movement to rotary one  Crankshaft can be produced by one part or it can be assembled

7  Piston rod:  It is placed in piston pins of crankshaft  It transmits forces to crankshaft having the effect to piston  Main parts are:  Eye  Head  Shank

8  Piston:  It retains gas pressure made by combustion of inflammable mixture  It is often made of aluminium alloys because it quickly conducts heat  It is designed so that it has minimal heat expansion  Main parts are:  Head  Top  Body

9  Piston pin:  It connects piston pin with piston rod  It makes the piston movement possible  Piston rings:  They seal combustion space  They scrape oil of valve sides

10  Camshaft:  Shaft is recessed by cam shafts  It is driven by belt or by chain  Ratio between crankshaft and camshaft is 2:1  The valve movement is controlled by camshaft rotation

11  Cam follower, valve rod, rocker arm, suction and exhaust valve:

12  OHV  Camshaft is placed in engine block  Movement is transmitted of camshaft through cam follower by valve rod, rocker arm to valve  Valves are placed in engine head

13  OHC  Camshaft is placed in engine head  Movement is transmitted of camshaft through cam follower directly to valve  Valves are placed in engine head

14  Name rotary parts of combustion engines  Explain the meaning of engine piston rod and piston

15  Describe these engine parts:

16  JAN, Zdeněk; ŽDÁNSKÝ, Bronislav ; ČUPERA, Jiří. Automobily 1. Brno : Avid, 2004. 211 s.  JAN, Zdeněk; ŽDÁNSKÝ, Bronislav ; ČUPERA, Jiří. Automobily 2. Brno : Avid, 2004. 120 s.  JAN, Zdeněk; ŽDÁNSKÝ, Bronislav ; ČUPERA, Jiří. Automobily 3. Brno : Avid, 2004. 220 s.  JAN, Zdeněk; ŽDÁNSKÝ, Bronislav ; ČUPERA, Jiří. Automobily 4. Brno : Avid, 2004. 350 s. Translation:  www.seznam.cz www.seznam.cz  www.slovnik.cz www.slovnik.cz  JANATA, Petr. Handy slovník technický anglicko-český a česko-anglický. Plzeň: Nakladatelství Fraus, 2000. ISBN 80-7238-075-3  Lingea LEXIKON 5, Technický slovník anglicko-český a česko-anglický. 2010.