Passenger Car Fuel Filter Element Is Resistant To Fuel Corrosion And Has Strong Material Stability
Passenger car fuel filters are core components that ensure clean, stable operation of the engine's fuel system. Their core function is to filter impurities, moisture, and colloids from fuel (gasoline/diesel), preventing these contaminants from entering precision components like injectors and fuel pumps, potentially causing wear, blockage, or performance degradation. The following details the characteristics of passenger car fuel filters from four perspectives: core function, core features, main types, and key performance indicators.
Core Function: Protecting the Fuel System's "Lifeline"
During the fuel transfer process from the tank to the engine, three types of contaminants may enter:
Colloids and paraffin contained in the fuel itself (which tend to solidify at low temperatures);
Metal debris and rubber particles from aging fuel tanks and fuel lines;
Dust and moisture introduced during refueling.
Fuel filters physically filter and intercept these impurities, directly safeguarding two key aspects:
Protecting the injectors and fuel pump: Clogged components like these (for example, the injector pores are only tens of microns in diameter) can lead to poor atomization, increased fuel consumption, reduced power, and, in severe cases, component failure;
Maintaining engine stability: Preventing impurities from causing poor fuel supply, reducing idling jitter, weak acceleration, and cold start difficulties, thereby extending engine life.
Features
Fuel corrosion resistance, strong material stability
Casing: Typically made of engineering plastic (such as PA66) or metal (galvanized steel), it must withstand chemical corrosion from gasoline/diesel and withstand the normal pressure of the fuel system (typically 0.2-0.5 MPa) to prevent rupture and leakage.
Filter element and filter paper: The core filter material is a resin-impregnated composite filter paper (such as wood pulp fiber or synthetic fiber). It must have sufficient porosity to ensure fuel flow, trap impurities through its fiber structure, and withstand fuel immersion (no swelling or deformation).
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Passenger Car Fuel Filter Element Is Resistant To Fuel Corrosion And Has Strong Material Stability Images
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