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I. Dynamic Characteristics: The “golden duo” for high-pressure pumps—specifically designed to tackle heavy-load blockages.

1. Torque peak range adaptation The peak torque of a diesel engine occurs in the low-to-mid speed range of 1,400–2,400 rpm, which perfectly coincides with the efficient operating speed of the high-pressure pump. In contrast, the peak torque of a gasoline engine appears at 2,500–3,500 rpm, requiring additional speed adjustments to match the pump’s specifications, which can easily lead to energy losses.
2. Strong load resistance In the face of sudden high loads caused by severe blockages inside pipelines—such as impacts against hard oil deposits or pushing nozzles through bends—the diesel engine is less likely to stall, maintaining stable power output and ensuring continuous impact force from the high-pressure water jet, thereby preventing blockage-clearing failures due to power interruptions.
3. Outstanding continuous operation capability Diesel engines can operate continuously for extended periods, fully meeting the demands of long-term operations such as dredging municipal pipelines and centralized maintenance in residential communities.

II. Scene Adaptation: Breaking Through Venue Limitations, Unfazed by Complex Environments

1. No external power supply dependency Scenarios such as municipal main roads, urban-rural fringe areas, and temporary pipeline networks at construction sites often lack 380V industrial power supplies—and even access to 220V residential power is frequently difficult. With its built-in diesel fuel-powered system, the generator only requires refueling with diesel to start up, completely freeing it from the limitations imposed by power supply radii and enabling it to “go wherever the congestion is.”
2. Strong resistance to harsh environments Drainage operations often encounter challenging conditions such as rainy weather, muddy terrain, and low temperatures—diesel engines feature a more robust mechanical design with superior water-, dust-, and vibration-resistant performance compared to electric motors, enabling them to operate reliably even on flooded roads and muddy sites.
3. Compatible with mobile work equipment Professional unclogging equipment is often integrated into trailers or engineering vehicles. The diesel engine’s integrated design makes it particularly well-suited for mobile, on-vehicle operations, eliminating the need for additional cable installations and significantly enhancing operational mobility.

III. Economic Efficiency: The “Cost-Optimal Solution” for Long-Term, High-Frequency Operations

1. Higher fuel efficiency Given that the unit price of diesel is generally lower than that of gasoline, fuel costs can be reduced for long-duration operations.
2. Low maintenance costs, long service life Diesel engines have a simple structure, lack an ignition system (relying on compression ignition for power generation), have fewer failure points, and their wear-resistant components boast a service life that significantly exceeds that of gasoline engines and conventional electric motors. Paired with industrial-grade high-pressure pumps, these engines reduce the frequency of equipment maintenance and replacement.
3. High residual value rate The durability of diesel engines results in a significantly higher residual value for used units compared to other types of power sources, further reducing the equipment’s total lifecycle costs.