What is the function of the BMW micro-dust filter?
1 Answers
The function of the micro-dust filter is to filter the air and ensure the health of the occupants in the vehicle. Below is relevant information about air filters: 1. Types of air filters: According to the filtration principle, air filters can be categorized into several types, including filtration type, centrifugal type, oil bath type, and composite type. The commonly used air filters in engines mainly include inertial oil bath air filters, paper dry-type air filters, and polyurethane filter element air filters. The inertial oil bath air filter undergoes three stages of filtration: inertial filtration, oil bath filtration, and filtration-type filtration. The latter two types of air filters primarily rely on filter element filtration. 2. Advantages and disadvantages: Various air filters each have their own advantages and disadvantages, but they inevitably face the trade-off between air intake and filtration efficiency. With in-depth research on air filters, the requirements for air filters have become increasingly stringent, leading to the development of some new types of air filters. Examples include fiber filter element air filters, composite filtration material air filters, noise-reducing air filters, and constant-temperature air filters, all designed to meet the operational needs of engines.