|
Application |
Automotive Cooling System |
|
Product Name |
Radiator Cooling Fan |
|
Brand Name |
Neutral |
|
OEM |
96164864 96256603 96164865 |
|
Material |
PA66 |
|
Warranty |
12 months/3000 hours |
|
MOQ |
20 PCS |
|
Packing |
neutral packing or customized packing |
|
Payment |
T/T |
|
Type |
Aftermarket |
|
Place of Origin |
Jiangsu, China (Mainland) |
Here is the professional English translation of the DAEWOO NEXIA 1995-2008 cooling fan working principles, maintaining technical accuracy and structured formatting:
I. Core Control Logic
Temperature-Graded Activation
• Low-speed stage (≈90°C):
At critical coolant temperature, the thermostat engages power supply, activating low-speed fan operation for routine heat dissipation.
• High-speed stage (≈95°C):
Shifts to high-speed mode under extreme heat or heavy loads (e.g., traffic congestion or max AC usage) for enhanced cooling efficiency.
• Automatic shutdown (≤87°C):
Cuts power when temperatures normalize to minimize energy consumption.
AC System Forced Activation
• AC engagement bypasses the thermostat, directly triggering fan operation via condenser temperature and refrigerant pressure signals regardless of coolant temperature, ensuring stable refrigeration.
II. Power Transmission Mechanism
Clutch Types
• Silicone oil clutch (OEM standard):
Utilizes thermal expansion properties of silicone oil-increased viscosity at higher temperatures drives fan rotation.
• Electromagnetic clutch (aftermarket option):
Engages fan via electromagnetic coil-driven drive plate, offering faster response and ~5-7% lower energy consumption.
Energy Efficiency Design
• Unlike traditional mechanical fans, NEXIA's electronic fan operates only during active cooling, reducing engine load.
III. NEXIA-Specific Engineering
Fail-Safe Mechanism
• Thermostat failure triggers dashboard warning lights; higher trims auto-activate "limp-home" mode (limits power output to protect engine).
Vintage Maintenance Requirements
• Capacitor aging:
Models >10 years old require capacitance checks to prevent low-speed failure due to reduced load capacity.
• Bearing lubrication:
Apply high-temperature grease every 60,000 km to prevent dry-friction noise.
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