The major distinction between diesel and gas lies in
the type of ignition. While gas engines operate on
spark ignition, diesel engines employ compression
ignition for igniting the fuel. With compression, the
air is drawn into the engine and subjected to high
compression that heats it up. The result is a very
high temperature in the engine, much [...]
With diesel engines, the compression ratio is higher
and there is more power. From a technical point, the
compression ratio of an engine is the comparison of the
total volume of the cylinder at the bottom of the
piston’s stroke divided by the volume of the cylinder
remaining at the top of the stroke.
Gasoline ratios
Serious damage to [...]
Most efficient overall – Honda Insight hybrid
With 60 mpg city and 66 mpg highway, the Honda hybrid
has top honors as most fuel efficient in the United
States. With a 1.0 gas engine mated to an electric
motor, the insight was designed to make the most
of the power by using low resistance tires. The
bad things about [...]
Industrial diesel engines are any engines that are used
for industrial purposes that run on diesel. Industrial
diesel engines are used to power a major portion of
industrial machinery, from motorbikes to bulldozers,
generators, and even forklifts and trucks. They range
in size from a few pounds to a few tons, with a various
amount of power. [...]
With the ever increasing cost of gasoline prices,
auto makers are having to work overtime to cost
effictively improve the fuel economy, while still
meeting the strict emission requirements of today
with gasoline engines.
One ideal and promising way to boost the fuel
economy of gas engines is to add hydrogen to the
fuel/air mixture in the engine. Since [...]
When gas is compressed, the temperature of it will rise,
with diesel engines using this very property to ignite
the fuel. Air is then drawn into the cylinder and
compressed by the rising piston at a much high
compression ratio than gas engines, up to 25:1, with
the air temperature reaching 700 – 900 degrees C.
At the top of [...]
Diesel engines offer the lowest specific fuel usage
of any other large internal combustion engine. The
fact remains, two-stroke diesels with high pressure
forced induction, particularly turbo charging, make
up a large percentage of the largest diesel engines.
Throughout North America, diesel engines are generally
used in larger trucks, where the low stress, high
efficiency cycle will lead to [...]
Gas engines are known as internal combustion engines
and are divided into two general classes, specifically
two cycle and four cycle engines. A cycle of an
engine represents one stroke of the piston or one
half revolution of the crank shaft, as a complete
revolution represents two cycles. With a two cycle
engine, the power impulse occurs at [...]
With gasoline getting more and more expensive, you’ve
probably found yourself wondering what you can do.
Even with the rising costs of gas and fuel, you
still need it to go places. No matter how you look
at it, you are at the mercy of these prices.
If you own two credit cards, changes are that you
will [...]
As you may know, diesel engines aren’t something
you should take lightly. There are good reasons
why the rush to put them in cars back in the 70s
flopped. Diesel isn’t the ideal power source for
all applications.
Engine speed
Diesel engines gained the reputation for long
service life early on in the history of the
engines, [...]