What are the specific requirements for the heat release of the small excavator?

1. Confirm that the hot air is discharged smoothly

①Do not open the radiator nacelle separator freely, or make it a heat transfer process of eddy current components. It is not necessarily free due to the influence of hot gas emission.

②A part of the exhaust hole of each engine room is well-known, especially the lower protective device of the engine and exhaust hole pump should prevent the appearance and placement of items, or insist that the heat exhaust should not be blocked. Reducing the amount of air intake will increase the temperature of the passenger cabin and increase the temperature of the air intake, and the electrical components will be damaged due to premature aging due to excessive temperature.

2. Air inlet

In addition to avoiding hot air return and ventilation areas, the most important factors affecting air volume are wind hoods and electric fans. At present, air food is mainly composed of venturi, ring and box. The direction of the fan and the hood is strictly required, and the distance between the fan and the engine is also necessary. Since the hood is usually used to improve the power of the fan, the air is more evenly distributed to the radiator core, thereby preventing hot air from returning to the engine room.

3. The intake resistance of the intake temperature scale specification (Cummins engine intake resistance 6BT 5.9 specification ≤15inH 0 o When the intake air temperature is 38°C or higher, the engine power decreases by 1% and the engine power increases by 6°C. Guaranteed 1.5%)