Gasoline engine, any of a class of internal-combustion engines that generate power by burning a volatile liquid fuel (gasoline or a gasoline mixture such as ethanol) with ignition initiated by an electric spark.
How efficient is a gasoline engine?
Modern gasoline engines have a maximum thermal efficiency of more than 50%, but road legal cars are only about 20% to 35% when used to power a car. … A gasoline engine burns a mix of gasoline and air, consisting of a range of about twelve to eighteen parts (by weight) of air to one part of fuel (by weight).
Is gas engine a SI engine?
A spark-ignition engine (SI engine) is an internal combustion engine, generally a petrol engine, where the combustion process of the air-fuel mixture is ignited by a spark from a spark plug.
Why are LPG cars not popular?
LPG bowsers are disappearing from petrol stations across the country as customers and car manufacturers abandon the fuel that was to be the environmental and economical solution for powering cars. For drivers whose cars run on LPG, it is likely getting harder to find a petrol station that stocks the fuel.
Why should the gas be sparked?
Gasoline vapors are denser than air, meaning these vapors will sink and collect at the lowest point. Effective air circulation may help disperse gasoline vapors. An open flame is not necessary to ignite gas vapors; one spark can cause gasoline vapors to ignite.