A turbo spins very fast; most peak between 80,000 and 200,000 RPM (using low inertia turbos, 150,000-250,000 RPM) depending on size, weight of the rotating parts, boost pressure developed and compressor design.
The RPM of a 737 jet engine is 15,000. This means that the engine turbines of the plane are capable of 15,000 rotations per minute. The power generated by a boeing 737 engine allows it to fly at speeds which are in excess of 800 km/hr (497 mph).
How fast a jet engine turbine spins depends on the size. Larger turbines spin slower. Large jet engine turbines can range from 10-25,000 rpm. Small turbines can spin up to 500,000 rpm.
When a turbocharger “kicks in” is based on exhaust pressure, so RPM's (Revolutions Per Minute) are a better indicator of when your turbo is activated. You could be driving 60mph at 1800RPM and the turbo might not be working, but at 20mph your turbo would kick in if you are hard accelerating once you pass 2200rpm.
At medium engine speeds, a medium-sized turbocharger can suck 3.7 cubic meters of air per minute. That would be around the same volume as average minibus. The turbocharger can spin from 20,000 rpm to 150,000 rpm in less than 1 second.
The GE90 for Boeing's 777 rotates at a maximum of 2,850 RPM for N1 and 10,850 RPM for N2. Another engine option for the 777 is the Rolls-Royce Trent 800 engine, which has similar speeds. The Trent 800 engine's N1 speed is 3,300, N2 speed is 7,000, and N3 speed is 10,600 RPM.
The RR engine has 3 shafts - High pressure (HP), Intermediate Pressure (IP) and Low pressure (LP) - and these all rotate at different speeds. In round numbers, the HP speed is 12000rpm, the IP at 8000rpm and the LP at 2900rpm.
In real-world turboprops the turbine is spinning much faster than the output shaft. For example, a typical propeller RPM would be ~1,500 RPM, but the turbine driving the propeller might be spinning at 20,000-40,000 RPM.
Turbocharged engines can produce more power and torque than non-turbocharged engines. However, this does not mean that you should over-rev your engine or push it beyond its limits. Over-revving can cause damage to the engine, especially if it is done repeatedly.
At what RPM are turbocharged engines most efficient?
It is well-known that a turbocharged engine has great torque output at lower engine speeds, so don't overdo it and shift early to a higher gear (a nice guideline is 2000 RPM). The higher the engine speed, the higher the fuel consumption – and the time you gain by accelerating in a lower gear is negligible.
The manual says that after sustained high speeds, as in just getting off the freeway that you should idle the engine for about 30 seconds before shutting it down or it may damage the turbocharger.
As an approximation, large commercial jet engines used in wide-body aircraft, such as the Boeing 747 or Airbus A380, may reach RPM values in the range of 5000 to 10000 RPM during take-off. Smaller engines on narrow-body aircraft, like the Boeing 737 or Airbus A320, may have RPMs ranging from 10000 to 15000 RPM.
There are engines flown in airliners, with an elapsed lifetime of over 40,000 hours, since they were manufactured. But for instance, Rolls-Royce Trent engines have a TBO of 15,000 hours, before they need to be removed for refreshening.
Jet engines typically operate in the range of 8000 RPM to 9350 RPM. Normally it will vary from aircraft to aircraft but the normal average will be as follows: N1 or low-pressure compressor when ground idling will rotate at 25% of it's maximum RPM, while the high pressure compressor will run at aro...
The maximum engine rpm was increased from 2,400 rpm to 2,700 rpm resulting in a 20 hp (15 kW) increase over the "R" model. As a result, the maximum takeoff weight was increased to 2,550 lb (1,157 kg).
How much does it cost to refuel an Airbus A380? A7. According to Pilot Career, the cost of refueling an Airbus A380 can vary depending on the fuel type and quantity, but typically costs between $30,000 and $50,000 per refueling. Q8.
What is the most powerful aircraft engine in the world?
The GE9X is the largest and most powerful commercial aircraft engine ever built, incorporating advanced technologies that enable more efficient, quieter flight with fewer emissions.
A turbocharger is a critical component highly customized for the engine. It uses an engine's exhaust gas to drive the turbine wheel up to 350,000 RPM. The turbine wheel then drives the compressor wheel through a shaft.
Basically it's between 10000 to 25000 rpm. Smaller engines wind up even higher. And, most anything flying today has an autonomous turbine and a controlled turbine, the autonomous turbine turns at what ever it feels like, the controlled turbine speed is based on throttle position, sort of.
Overspeeding can push the turbo beyond its safe operating parameters, causing it to fail by damaging the turbine or compressor wheels and bearings. If the turbo continues to overspeed, it can overboost the engine, resulting in serious damage to the internal components and potentially complete engine failure.
