Engine compartment diaphragm pump drainage system for power surfboards

Abstract

The present invention relates to a drainage system of a power surfboard or a motorboat, that is, a membrane pump drainage system in an engine compartment for a power surfboard, wherein: a drainage pipe is included, and the water inlet of the drainage pipe is located on the bottom plate at the rear of the engine compartment, and the water is drained The water outlet of the pipe passes through the engine compartment drain on the top panel of the buoyancy plate body; an engine compartment drain filter and an engine compartment drain diaphragm pump are arranged on the drain pipe, and the engine compartment drain diaphragm pump has three interfaces, Two of the water inlet and outlet ports are connected with the drain pipe, and the other power source port is connected with the crankcase outlet of the two-stroke engine through the connecting air pipe. Because the structure reduces energy consumption, avoids water backflow, ensures no water accumulation in the engine compartment and improves usability.

Description

technical field [0001] The invention relates to a drainage system for a power surfboard or a motorboat, in particular to a diaphragm pump drainage system for an engine compartment of a power surfboard, which avoids backflow of water, reduces energy consumption, ensures no water accumulation in the engine compartment, and improves usability. Background technique [0002] Surfing is popular for its thrills and effective physical exercise. Ordinary surfboards must borrow the thrust of wind and waves before they can be used. When there is no wind and waves or the wind and waves are small, the surfboard will lose its due utility. In order to realize surfing without wind waves or when the wind waves are small, a kind of power surfboard in the prior art uses an engine as power, which can surf on the sea surface or drive on a calm water surface; this type of power surfboard generally Including the hull assembly, power unit, joystick, main empennage, the hull assembly is a prolate o...

AI Technical Summary

Problems solved by technology

[0003] Portable power surfboards and ultra-light motorboats are completely submerged in the engine compartment during the process of starting, low speed, and deceleration braking. It is inevitable that water will enter the engine compartment, especially in the past negative pressure drainage system, water will flow from the drain pipe A large number of roads enter the engine compartment, which will seriously affect the normal operation of the engine, and will also increase the weight of the hull, resulting in slower speed increase. The flow of water in the cabin will cause the hull to become unstable and difficult to control.

[0004] To sum up, in the negative pressure drainage system of the prior art, water will flow back into the engine compartment from the drain pipe, and the accumulated water will seriously affect the normal operation and use effect of the engine.

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