Asked in Uncategorized
How do you determine pressure ratio when designing a compressor for turbocharger?
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Asked in Cars & Vehicles, Car Sounds, VW Passat
What is a blow off valve and how does it work?
The blow-off valve should not be confused with a waste-gate. The waste-gate is a device that by-passes the turbine wheel of the turbocharger, limiting the shaft-speed of the turbocharger. Therefore, limiting the boost (pressure) that the compressor generates and keeping the turbocharger from over-speeding. A blow-off valve is mounted in the intake plumbing between the turbocharger compressor and the throttle plate. The blow-off valve is a second safety measure against the turbocharger over-boosting and damaging the engine. The blow-off valve is more commonly used to keep the turbocharger spinning when the throttle plate is suddenly closed. When the turbocharger is generating maximum boost pressure at full throttle and then the throttle is suddenly closed, compressed air coming from the compressor slams against the throttle, generating extremely high pressures that travel backwards to the compressor stopping the compressor from spinning. When the throttle plate is again opened, the engine must spool the turbocharger shaft again. The effects of this high pressure can also be very damaging to the turbocharger.
Why could a turbocharger be surging?
Compressor surge is when the air pressure after the compressor is actually higher than what the compressor itself can physically maintain. This condition causes the airflow in the compressor wheel to back up, build pressure, and sometimes stall. Common conditions that result in compressor surge on turbocharger gasoline engines are: * A compressor bypass valve is not integrated into the intake plumbing between the compressor outlet and throttle body * The outlet plumbing for the bypass valve is too small or restrictive * The turbo is too big for the application
Asked in The Difference Between
What is the difference between a pulse system and a constant pressure turbocharger?
Types of turbochargers Turbochargers are of two types and they are pulse and constant pressure type turbocharger. Pulse type turbocharger: In pulse type turbocharger, the exhaust gas directly enters the turbine side and drives the turbine with the exhaust gas energy. The connection from the exhaust side of an engine is directly connected to the turbine side of a turbo charger. The pipe connections from the exhaust gas towards the turbine side are generally small in length and exhaust grouping is provided to prevent the blowback of gases from one cylinder to another. Constant pressure type turbocharger: In constant pressure type turbocharger, the exhaust gases gets collected in a single exhaust gas reservoir, where the pressure is maintained constant so as to avoid any fluctuation in the exhaust gas energy pressure. The exhaust gas is introduced to the turbine side after maintaining the pressure inside the cylinder. Materials: Turbine and compressor blades: Steel or nickel alloy. Volute casing: cast iron Bearings: steel or gun metal.
Asked in Fuel and Engines, Chevy 350
Which component when open allows engine exhaust to bypass the turbocharger turbinereducing intake pressure?
What is a Turbo?
Short for turbocharger, It is an exhaust driven air compressor. Exhaust gases exit the engine and enter the turbine housing where it spins the turbine wheel. The turbine wheel is connected to a shaft which the compressor wheel is also attached. When more power is needed, the turbine/compressor wheel assembly spins faster and the compressor wheel sucks in more air and compresses it creating boost/positive manifold pressure/more power.
What side is the low side and what side is the high side?
Asked in Algebra, Mechanical Engineering
How do you calculate pressure ratio of compressor?
Asked in Science
What component regulates the pressure in a turbocharger?
What is a Supercharged engine?
An engine which is equipped with a supercharger. A supercharger is a special kind of air compressor which forces larger than normal amounts of air into an engine, allowing for the use of more fuel, thus increasing the the horsepower output of the engine. Most cars run with just air pressure around us. A Supercharger or Turbocharger is simply a pump which raises the pressure. A Supercharger is usually driven by a belt or chain and a Turbocharger is driven by exhaust gasses.
Asked in Heater Cores and Blower Fans, Heating Ventilating and Air Conditioning, Airplanes and Aircraft
Designing an axial fan for aircraft?
what do you mean? axial compressor (or) axial turbine? Their missions are different. Design for axial compressor or turbine, must be consider their performance. The performance is characterized by - pressure ratio, rotational speed and efficiency. The details of how to design axial fan, are very complex.
What is pressure in crankcase of reciprocating compressor?
What is multistage reciprocating air compressor?
Asked in Home Appliances
What does a regulator do on an air compressor line?
Asked in Mechanical Engineering
Can reciprocating compressor surge?
Asked in Refrigerators
How do you check the pressure of a fridge compressor?
Asked in Science
Why is air pressure important to force?
Is poor compressor can cause high head pressure in an air cooled condenser?
Asked in Air Conditioning and Coolant
How do you know if your AC compressor is over chaged?
If the unit was freezing the evaporator before you charged it and now you do not have cooling, you may have overcharged it. The best way to determine this is to have a certified AC technician check the actual pressures of the system as most do it yourself cans do not have acurate gauges. The compressor may run constantly, but not cool or the compressor may run and then blow a fuse or the compressor may run and there is no cooling, but the only way to acurately determine an overcharge is to measure the pressure with accurate gauges.
Asked in Air Compressors
What controls the air pressure on an air compressor?