This depends on the amount of force you need. From one atmosphere to 500 atmospheres.
It depends on the pressure you wish to achieve.
You will usually find a pneumatic cylinder as a shock absorber in an auto. They reduce the amount of bounce that is transmitted to a passenger riding in the car.
ISC(IDLE SPEED CONTROL)ACTUATOR. the isc actuator wich is under pcm(powertrain control module) control controls the amount of air entering the intake plenum at idle.
The amount of LPG low-pressure gas required to melt 300kg in a furnace depends on the efficiency of the furnace and the heating value of the LPG. It is recommended to consult a professional to calculate the precise amount needed for your specific setup.
The proper suction pressure of any air conditioning or refrigeration system is determined by the type of refrigerant used and sometimes the amount of charge. : Suction pressure used is also directly related to the temperature required. : The temperature required in the evaporator relates to the pressure required in the suction line since, the fluid is at saturation in the evaporator. : Knowing the temperature required, use the fluid's saturation tables to find the corresponding pressure required.
controling the amount of warm air released into the system
The speed of a piston is primarily determined by factors such as the air pressure in the system, the size and weight of the piston, and the efficiency of the pneumatic system. The amount of metered outlet air can affect the speed to some extent, but it is not the sole determining factor.
All pneumatic systems start with an aircompressor. This compressor is usually rigged with a electronic pressure switch, which shuts the compressor off once the system has reached pressure. The compressor uses an accumulator to store additional compressed air in reserve in case the amount of air required by the system exceeds the compressor's output. Both of these components are connected to an air regulator, which reduces the combined compressor and accumulator output pressure to the desired psi (usually pressure gauges are placed before and after the regulator). This resulting air feed is then connected to a series of mechanical or electric solenoids (air valves). Two lines run out of each solenoid, each connects to an opposite side of the pneumatic piston (s) that the solenoid controls. When triggered, the solenoids direct the air into the front or back of the piston depending on the desired direction of the piston. Return air from the opposite side of the piston is usually vented. This results in the pneumatic pistons emitting a hissing sound whenever they are moved.
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All pneumatic systems start with an aircompressor. This compressor is usually rigged with a electronic pressure switch, which shuts the compressor off once the system has reached pressure. The compressor uses an accumulator to store additional compressed air in reserve in case the amount of air required by the system exceeds the compressor's output. Both of these components are connected to an air regulator, which reduces the combined compressor and accumulator output pressure to the desired psi (usually pressure gauges are placed before and after the regulator). This resulting air feed is then connected to a series of mechanical or electric solenoids (air valves). Two lines run out of each solenoid, each connects to an opposite side of the pneumatic piston (s) that the solenoid controls. When triggered, the solenoids direct the air into the front or back of the piston depending on the desired direction of the piston. Return air from the opposite side of the piston is usually vented. This results in the pneumatic pistons emitting a hissing sound whenever they are moved.
Fuel pressure may be lower than required amount.
well laminar flow is required in aircraft and race cars .it is required sine we know that air transfers its momentum by sticking to the surface of the body . and thus creates pressure . now if the flow is turbulent it is not going to stick to the surface and going to destroy a considerable amount of momentum and not create sufficient amount of pressure that's why we need to have laminar flow in aircrafts and race cars. it is desired to be there in pipes in order to have a smooth flow.