A pressure cleaning machine employing a belt-and-pulley system to transfer power from the motor to the pump represents a specific mechanical configuration. This design contrasts with direct-drive systems where the motor shaft directly connects to the pump. A typical example involves a gasoline engine or electric motor driving a belt connected to a pulley on the water pump, which pressurizes and propels the cleaning stream.
This indirect power transmission method offers several advantages. The belt acts as a shock absorber, reducing wear and tear on both the engine and pump, potentially extending their lifespans. The belt-driven configuration allows for easier pump servicing and replacement due to the decoupled design. Furthermore, the pulley system allows for changes in the speed ratio between the motor and pump, optimizing performance for different tasks and maximizing efficiency. Historically, this configuration has been a popular choice, offering a balance of performance, durability, and serviceability in various pressure cleaning applications.