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The velocity of the air flow entering the carburetor is measured by placing one or more venturi directly in the airflow. The venturi creates a low pressure that changes with the velocity of the air. As the air pressure in chamber A is decreased with greater airflow, the diaphragm is pulled toward the carburetor body.
This is the manner in which a steam injector operates. An additional use for the injector technology is in vacuum ejectors in continuous train braking systems, which were made compulsory in the UK by the Regulation of Railways Act 1889. A vacuum ejector uses steam pressure to draw air out of the vacuum pipe and reservoirs of continuous train brake.
This is also known as a venturi system or "single point" system. Vapour phase injection systems also use a converter, but unlike the mixer system, the gas exits the converter at a regulated pressure. The gas is then injected into the air intake manifold via a series of electrically controlled injectors.
Venturi scrubbers are used to clean flue gas emissions; Injectors (also called ejectors) are used to add chlorine gas to water treatment chlorination systems; Steam injectors use the Venturi effect and the latent heat of evaporation to deliver feed water to a steam locomotive boiler. Sandblasting nozzles accelerate and air and media mixture
The compression ratio of the injector, /, is defined as ratio of the injector's outlet pressure to the inlet pressure of the suction fluid . The entrainment ratio of the injector, W s / W m {\displaystyle W_{s}/W_{m}} , is defined as the amount W s {\displaystyle W_{s}} (in kg/h) of suction fluid that can be entrained and compressed by a given ...
Venturi scrubbers can be used for removing gaseous pollutants; however, they are not used when removal of gaseous pollutants is the only concern. The high inlet gas velocities in a venturi scrubber result in a very short contact time between the liquid and gas phases. This short contact time limits gas absorption.
In a manifold injection system, air and fuel are mixed outside the combustion chamber so that a mixture of air and fuel is sucked into the engine. The main types of manifold injections systems are multi-point injection and single-point injection. These systems use either a continuous injection or an intermittent injection design. [13]
Two-barrel downdraft Holley 2280 carburetor Cross-sectional schematic. A carburetor (also spelled carburettor or carburetter) [1] [2] [3] is a device used by a gasoline internal combustion engine to control and mix air and fuel entering the engine. [4]
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