Internal Combustion Engines - PowerPoint PPT Presentation

Loading...

PPT – Internal Combustion Engines PowerPoint presentation | free to download - id: 438300-ZmQ1Y



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

Internal Combustion Engines

Description:

Internal Combustion Engines Internal Combustion Engines Internal Combustion Engines Internal Combustion Engines Internal Combustion Engines Internal Combustion ... – PowerPoint PPT presentation

Number of Views:36451
Avg rating:5.0/5.0
Slides: 26
Provided by: Grzegor2
Learn more at: http://www.itc.polsl.pl
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Internal Combustion Engines


1
Internal Combustion Engines
2
Internal Combustion Engines
types of heat engines
3
Internal Combustion Engines
The internal combustion engine is an engine in
which the combustion of fuel-oxidizer mixture
occurs in a confined space
applied in automotive rail transportation power
generation ships aviation garden appliances
4
Internal Combustion Engines
5
Internal Combustion Engines
6
Internal Combustion Engines Carnot cycle -
7
Internal Combustion Engines two stroke -
2. Intake / Compression
1. Power / Exhaust
  1. ignition
  2. piston moves downward compressing fuel-air
    mixture in the crankcase
  3. exhaust port opens
  1. inlet port opens
  2. compressed fuel-air mixture rushes into the
    cylinder
  3. piston upward movement provides further
    compression

8
Internal Combustion Engines two stroke -
  • Advantages
  • lack of valves, which simplifies construction and
    lowers weight
  • fire once every revolution, which gives a
    significant power boost
  • can work in any orientation
  • good power to weight ratio
  • Drawbacks
  • lack of a dedicated lubrication system makes the
    engine to wear faster.
  • necessity of oil addition into the fuel
  • low efficiency
  • produce a lot of pollution

9
Internal Combustion Engines four stroke -
10
Internal Combustion Engines four stroke -
11
Internal Combustion Engines four stroke -
  • Advantages
  • dedicated lubrication system makes to engine more
    wear resistant
  • better efficiency that 2-stroke engine
  • no oil in the fuel less pollution
  • Drawbacks
  • complicated constriction
  • should work in horizontal position due to
    lubrication

12
Internal Combustion Engines Diesel -
13
Internal Combustion Engines Diesel -
  • Advantages
  • self ignition (without electrical spark plug)
  • better efficiency
  • reliability
  • higher durability
  • supplied with worse fuels
  • Drawbacks
  • more NOx production
  • more expensive production
  • more weight
  • louder
  • lower revolutions

14
Internal Combustion Engines Diesel -
fuel injector
15
Internal Combustion Engines multi-cylinder -
16
Internal Combustion Engines multi-cylinder -
Cylinder layouts
17
Internal Combustion Engines multi-cylinder -
Cylinder layouts
18
Internal Combustion Engines multi-cylinder -
19
Internal Combustion Engines multi-cylinder -
14 cylinder Diesel engine (80 MW)
20
Internal Combustion Engines multi-cylinder -
Cylinder layouts
radial
21
Internal Combustion Engines
Valve operation
22
Internal Combustion Engines
Engine characteristic
23
Internal Combustion Engines
Engine cooling
24
Internal Combustion Engines
Turbocharged engine
25
Internal Combustion Engines
Wankel rotary engine
  • Drawbacks
  • increased wear of rubbing parts
  • higher fuel consumption
  • requirement for better materials
  • Advantages
  • higher power output
  • no reciprocating mass
  • simpler and lighter construction
About PowerShow.com