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 kind of engines do busses have?
95 percent of all school buses in America are powered by diesel engines because of their reliability, durability and safety. Over half of these (54 percent) rely on the cleanest, near-zero emission diesel engine technology.
Does a bus have an engine?
Most American school buses have a diesel engine. Currently, Skoolies and Skoolies mostly use diesel as fuel, although there are quite a few initiatives to switch to Gas, less to electricity and occasionally to hydrogen.
What diesel engine is in a school bus?
Torque — and Why it Matters for School Buses
|CUMMINS B6.7 DIESEL ENGINE||CUMMINS WESTPORT B6.7N NATURAL GAS ENGINE|
|200-300 HP||200-240 HP|
|660 LB-FT PEAK TORQUE||560 LB-FT PEAK TORQUE|
|660 LB-FT TORQUE AVAILABLE FROM 1300-2300 RPM||560 LB-FT TORQUE AVAILABLE FROM 1500-2200 RPM|
Are buses turbocharged?
Yes, most of the bus engines made in the past few decades are turbocharged. On buses, the engine is generally installed at the rear, lying down on the left side to free up space in front of the rear door, or upright, which allows better access for maintenance.
How powerful are bus engines?
The de-rated Cummins L10 engines delivers 180-Hp. Current London d/d buses are powered by a variety of engines such as the Cummins 6.7-litre 6BTA and the Volvo 7-litre engines, with diesel-electric (with battery) and the BYD battery-electric buses now entering service.
Where are bus engines?
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 buses have rear engines?
When loaded, buses get traction thanks to being rear wheel drive. A transmission or drive shaft are necessary if the engine is at the front as a result of this. This will ensure that the back wheels and engine are connected. … A rear engine prevents this and is better overall for the bus.
How many cc is a bus engine?
Engine and Performance
|Engine||H Series CRS, iEGR Technology|
|Engine Displacement||5660 cc|
|Fuel Injection System||Common Rail|
|Fuel Tank Capacity||239 Litres|
What engines do buses have Australia?
Buses, trucks and special vehicles are powered by Doosan Infracore engines. Pictured is the DV15TIS V8 TI. The 14.6-litre pumps out a maximum 309kW (420hp) at 2100rpm and maximum torque of 1666Nm at 1200rpm.
What makes a bus a bus?
A bus (contracted from omnibus, with variants multibus, motorbus, autobus, etc.) is a public transport road vehicle designed to carry significantly more passengers than the average cars or vans. Buses can have a capacity as high as 300 passengers, although the average bus usually carries between 30 to 100.
How much horsepower does a Greyhound bus have?
newest to oldest… Greyhound’s most modern coach is the MCI D4505, first introduced in 2010. It’s 45 feet long and 102 inches wide, seating 50. Caterpillar, Detroit Diesel, and Cummins engines can be ordered – but most come with a Cummins ISX 12 liter inline 6 cylinder, with 425hp and 1,450 lb-ft torque.
What is the best school bus engine?
What’s the best school bus engine & transmission?
- Cummins (5.9L, 6.7L and 8.3L)
- DT (360 or 466)
- CAT C7.
How many Pistons are in a bus engine?
Diesel Bus Engine, 6 Horizontal Cylinder Configuration, Direct Injection. This cut-away is the engine of a diesel bus with 6-cylinder horizon configuration and direct injection.
Are school buses V8?
School. Bus. Ever. … The use of the V10 was brought about due to GM discontinuing the V8 that the buses used previously, so Blue Bird signed a contract with Ford and Roush CleanTech to equip the new buses with the ten cylinder unit and a Ford six-speed gearbox.