Two-stroke-cycle diesel engines were first used in buses in 1938 and are still found in most city and intercity models. Air suspensions were introduced in 1953 and continue to be employed on integral-frame bus models. They consist of multiple heavy rubber bellows, or air springs, mounted at each axle.
What engines do busses use?
94 percent of all school buses in America are powered by diesel engines because of their reliability, durability and safety. Almost half of these (46 percent) rely on the cleanest, near-zero emission diesel engine technology.
What kind of engines do city buses have?
In 2018, 84 percent of transit buses were powered by diesel engines and fuel, or diesel hybrid engines. Of that, about one-in-three diesel buses are of the latest clean diesel technology powered by an engine that meets strict emission standard for model year 2010 and later.
Do buses have Turbo?
Buses and trucks generally use a 6 cylinder in-line diesel engine and using a turbocharger can improve the thermal efficiency of the engine and also can control the emission level to an extent. Though old buses are not equipped with turbocharger the buses manufactured nowadays are fitted with a turbocharger.
How many cc engine does a bus have?
Ashok Leyland Viking Highlights
Powering this Ashok Leyland bus is 5660 cc 6 cylinder H series CRS, iGen6 technology engine. It is powered by diesel fuel, produces a maximum power of 200 HP and a maximum torque of 700 Nm. Doing the transmission duty is 6 speed (6F+1R) gearbox.
How much horsepower is in a bus?
A typical intercity coach weighs about 12,000 kg (26,000 pounds), has a capacity of up to 47 passengers, a two-stroke-cycle V-8 diesel engine with up to 450 horsepower, an electronically controlled automatic transmission, and air brakes.
How much is a bus engine?
This is a bit more daunting but some engines are within the realm of a reasonably competent do-it-yourselfer. I’d estimate a DT466 could be rebuilt yourself for somewhere around $2000; where a shop will probably set you back around $8000 or more (most of it is labor).
How does a bus engine work?
Compression: The inlet valve closes, the piston moves up, and compresses the air mixture, heating it up. Fuel (dark blue) is injected into the hot gas through the central fuel injection valve and spontaneously ignites. Unlike with a gas engine, no sparking plug is needed to make this happen.
What is the best engine for a school bus?
Any inline 6 cummins or international would be ideal IMO. My dt466 has plenty of power on tap. Re: What is the best engine to look for? The original 370 in my bus went 160,000 badly-neglected miles.
Which fuel is used in bus?
Diesel fuel is widely used in transport tractor-trailer trucks and buses. Some advantages of diesel include: Less Pollution – Although diesel fuel is non-renewable, the exhaust contains less carbon dioxide and nitrous oxide, which contributes to smog and pollution in the environment.
Why are bus engines so noisy?
The reason why current buses are so loud is because they use that old standby, an internal combustion engine. With pistons firing and crankshaft spinning, the engines can make quite a racket. The DesignLine bus does away with all that, operating instead on a spinning turbine that recharges a lithium-ion battery.
Where is the engine in a bus?
In RE buses, the rear of the bus has the engine. Basically, the engine is located in the trunk. Also, rear-engine vehicles tend to prove exceptional braking ability due to a big amount of weight from the engine remaining over the rear tires during braking.
Why do diesels last longer?
Diesel engines do last longer than petrol ones. Diesel is a light oil and when burned and used as fuel by the vehicle it lubricates the parts of the engine. This prolongs the life of the engine. Petrol is a detergent and washes away oil from the components of the engine, therefore, wearing it out quicker.
How much mileage does a bus give?
It largely depends on the driving style and the type of bus. Ashok Leyland buses without AC will return about 5-6 kmpl when driven sedately at about 50-60kmph. Air conditioned buses may give 0.5-1 kmpl less. Volvo buses will return about 2.5-3.5 kmpl when driven between 80-120 kmph.
How big is a bus fuel tank?
There is no standard size tank. It could be anywhere from less than 30 gallons usable to over 200 gallons usable.
What is the fuel capacity of a bus?
Volvo Buses have a Fuel Tank capacity of 600 litres.