The application of new energy vehicles has become increasingly mature in the market, with various types of vehicle applications emerging one after another. However, compared to the layout of chassis pipelines, there are significant differences in various concepts, and there is no unified standard in the industry. This article specifically provides an overview of the application of electric air compressors for vehicles. The main points are as follows:
From the current structure of electric air compressor assemblies on the market, piston type air compressors have the largest usage, mainly including traditional oil lubricated piston type modified piston type oil electric air compressors and oil-free piston type electric air compressors; Next should be oil lubricated slide type electric air compressors, scroll type electric air compressors, and screw type electric air compressors. Structurally speaking, a piston air compressor draws gas from the outside into the cylinder body of the compressor, passing through internal mechanisms such as pistons and valve plates. In fact, the valve plate of a piston air compressor is a one-way valve structure, which accumulates gas to form pressure through the continuous stroke movement of the piston; However, for slide type, vortex type, and screw type air compressors, gas compression is generated by the volume change of the slide or the rotation of the screw or vortex disk, which leads to the change of volume. Therefore, the inlet and outlet ends are actually connected, and it is not difficult to explain why many oil-free vortex machines are equipped with one-way valves separately at the outlet. Secondly, structurally speaking, if the slide machine, screw machine, and vortex machine have an oil lubrication structure, an oil-water separation device must be added, otherwise the machine cannot adapt to the on-board pipeline. However, from the perspective of the structure of the body itself, an oil gas separation device must be installed at the exhaust end, so the condensed water in the compressed air is always mixed with the exhaust air and lubricating oil, resulting in oil and water mixing. The heating during the compression process of the air compressor brings about oil emulsification events, which ultimately explains why equipment that originally used this type of structure on the market could not eliminate oil emulsification problems through control logic; As a result, electric air compressors for vehicles in the market have to develop towards piston oil lubricated air compressors or oil-free structures.
Post time: Mar-27-2026
