Single-direction negative-pressure water discharging system of engine compartment for power surfboard

Abstract

The invention relates to a negative-pressure water discharging system of a power surfboard or a motorboat, in particular to a single-direction negative-pressure water discharging system of an engine compartment for the power surfboard. The single-direction negative-pressure water discharging system comprises an engine compartment water discharging pipe which is used for communicating the engine compartment and a water outlet cavity of a water spray propelling pump, a water inlet of the engine compartment water discharging pipe is formed in a soleplate on the inner tail part of the engine compartment, and a water outlet of the engine compartment water discharging pipe is formed in the water outlet cavity of the water spraying propelling pump and is consistent with the water spraying direction of the water spraying propelling pump; the engine compartment water discharging pipe between the engine compartment and the water spraying propelling pump is provided with an engine compartment water discharging filter and an engine compartment water discharging check valve. By adopting the structure, the back blowing of water is avoided, no accumulated water of the engine compartment is guaranteed, and the application performance is improved.

Description

technical field [0001] The invention relates to a negative pressure drainage system for a power surfboard or a motorboat, in particular to a one-way negative pressure drainage system for an engine compartment of a power surfboard, which avoids backflow of water, 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 ...

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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