Air inlet arrangement for an air compressor

Abstract

An air inlet arrangement for an air compressor intended to be arranged on a vehicle includes an air inlet tube for providing air to an air compressor, and an air intake conduit for providing air to an internal combustion engine. The air inlet tube is provided with an end portion having an inlet opening and is mounted to the air intake conduit. The end portion is inserted in the air intake conduit in such a way that the inlet opening is arranged inside the air intake conduit, and the inlet opening is arranged to face towards the main direction of the intended air flow in the air intake conduit.

Description

BACKGROUND AND SUMMARY[0001]The present invention relates to an air inlet arrangement for an air compressor, and to an air compressor system.[0002]In heavy vehicles, such as trucks and buses, there is a need for compressed air. The compressed air is provided to ensure the function of different pneumatic components and equipments of the vehicle. The air compressor is usually driven by a prime mover of the vehicle, such as an internal combustion engine which is primarily used for driving the vehicle. The compressed air may be delivered to a storage tank from which compressed air is supplied to the pneumatic components and equipments. Turbocharged engines are commonly employed as the prime mover in commercial vehicles and thus also to power the air compressor system. A turbocharger is driven by the exhaust gases of the engine for supplying pressurised air to the engine so as to increase the efficiency of the engine.[0003]In the air compressor air is compressed in one or more compressio...

AI Technical Summary

Benefits of technology

The present invention relates to an air inlet arrangement for an air compressor system in vehicles. The invention aims to reduce the leakage of oil from the compressor system into the pneumatic equipment, which can be harmful to the components. The invention provides an air inlet arrangement where the end portion of the air inlet tube is inserted in the air intake conduit in a way that increases the pressure of the air in the inlet tube and counteracts the oil leakage. The invention is based on the fact that air from the crankshaft side of the piston can more easily pass the sealants and reach the air side of the piston when the air flow is restricted. The invention includes various parameters that can be adjusted to expose the inlet opening to the air flow in the air intake conduit and reduce the leakage of oil. The technical effect of the invention is to provide an improved air inlet arrangement for the air compressor system in vehicles that reduces the leakage of oil and harm to the components.

Problems solved by technology

However, such sealants are not completely effective which implies that some oil can enter the compressed air in aerosol form.

The oil per se as well as other substances into which the oil can be been transformed, particularly at high temperatures, can be harmful to components in the pneumatic system, such as air dryer equipment, sealants, valves or sensors.

This in turn reduces the work that the air compressor has to do and the leakage of any oil / air-mixture from the crankshaft region to the cylinder space where air is compressed is counteracted.

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