1. Necessity of ignition
1.1 How a spark-ignition engine works
This section briefly describes the components and operation of a spark-ignition engine based on a 4-stroke cycle (the most common cycle used today).
The four strokes (intake, compression, expansion and exhaust) of an engine are described in figure 1 .
In the case of a 4-stroke engine, motion is imparted by the crankshaft during the intake, compression and exhaust phases, and the piston becomes the engine during the expansion phase (transmission of the energy released by combustion in the form of mechanical energy to the crankshaft).
The diagram at 2...
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
The Ultimate Scientific and Technical Reference
This article is included in
Hydraulic, aerodynamic and thermal machines
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Necessity of ignition