7.7 FIRING ORDER

. [ Ganesan, pp 284-285]

The several cylinders of the engines will all fire once in the 720 degree rotation of the crank-shaft (or 360 degrees for two stroke engines). The cylinders and crank shafts are arranged to have the firing distributed evenly around the 720 Degrees. The sequence in which the cylinders from one end to the other fire is determined with reference to their effect on mechanical balancing, cooling, and exhaust pressure considerations.

 

 

 

 

 

 

• IC Engine

  • Introduction
    • Syllabus
    • References
    • Introduction
    • Historic Perspective on IC Engines
    • Trends in Combustion Engine Development
    • Attractive Features and Drawbacks
    • Compression Ratio Over the Decades
    • Automobile Pollutants
    • Emission Controls
  • Engine types and operation
    • Engine Classifications
    • 4stroke (SI) Engine
    • 2.3 Geometry & c-ratio
    • 2.4 Otto Cycle
    • 2.5 Carburetion and Charging
    • 2.6 Carburetor Principle
    • 2.7 Four Stroke Diesel Engine
    • 2.8 Electronic Fuel Injection
    • 2.9 Fuel Injection System
    • 2.10 Two Stroke Cycle
    • 2.11 Diesel Cycle
    • 2.12 Supercharging
    • 2.13 Turbocharging
    • 2.14 Engine Parts
    • 2.15 Continuous Combustion Gas Turbine
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  • Testing and Performance
    • 3.1 Torque and Power.
    • 3.2 Dynamometer.
    • 3.3 Dynamometer Principle.
    • 3.4 Prony Brake dynamometer
    • 3.5 Fluid Dynamometers.
    • 3.6 Fan Brake Dynamometer.
    • 3.7 Eddy current dynamometer
    • 3.8 Electric Dynamometer.
    • 3.9 Chassis Dynamometer.
    • 3.10 Speed Measurements.
    • 3.11 Fuel Consumption.
    • 3.12 Air Consumption.
    • 3.13 Performance factors
  • Fuel and Combustion
    • 4.1 Automotive Fuels.
    • 4.2 Crude Oil Formation
    • 4.3 Gasoline.
    • 4.4 Diesel Fuels.
    • 4.5 Kerosene and Other Fuels
    • 4.6 Structure of Hydrocarbons.
    • 4.7 Refining.
    • 4.8 Stoichiometry.
    • 4.9Combustion and SI Engines
    • 4.10Auto-Ignition
    • 4.11 Knock and SI Engines.
    • 4.12 Detonation & deflagration
    • 4.13 Knock & engine variables
    • 4.14 Octane Number
    • 4.15 Anti Knock Agents
    • 4.16 Knock and Performance
    • 4.17 Combustion Chamber
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  • Engine cycles and gas exchange process
    • 5.1 Air Standard Cycles
    • 5.2 Air Standard Otto Cycles
    • 5.3 Air Standard Diesel Cycles
    • 5.4 Air Standard Dual Cycles
    • 5.5 Devaitions
    • 5.6 The Volumetric Efficiency
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  • Carburetors
    • 6.1 Carburetor Parts
    • 6.2 Engine Requirements
    • 6.3 Carburetor Charecteristics
    • 6.4.1 The Idling System.
    • 6.4.2 Multiple Venturi.
    • 6.4.3 Metering System.
    • 6.4.4 Economizer.
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  • Ignition Systems
    • 7.1 Sparking and Travelling Flames.
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    • 7.3 Sparking Energy and Duration.
    • 7.4 Conventional Battery Ignition System.
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  • CI Fuel Injection
    • 8.1 Ojectives and Functional Elements
    • 8.2 Air Injection systems
    • 8.3 Solid Injection System.
    • 8.3.1 Individual Pump Systems.
    • 8.3.2 Distributor Pump System.
    • 8.3.3 Common rail System.
    • 8.4 Fuel Supply and Return Lines.
    • 8.5 Jerk Type Pump.
    • 8.6 Distributor Pumps.
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  • Lubrication and cooling
    • 9.1 Lubrication.
    • 9.2 Functions.
    • 9.3 System Components.
    • 9.4 Lubricating Oils and Additives.
    • 9.5 Oil Filters.
    • 9.6 Mechanism of Lubrication.
    • 9.7 Lubrication of Engine Components.
    • 9.8 Lubrication System.
    • 9.9 Gear Pump.
    • 9.10 Cooling.
    • 9.11 Liquid Cooled System.
    • 9.12 Air Cooled Systems
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