Motor Float Air Intake Sealing Rib and Partition Design
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Solution Overview
Problem
Existing solutions for air intake systems in motor floats fail to effectively prevent water leakage into the engine compartment during dynamic movements, such as turns and waves, leading to engine performance issues and potential damage.
Innovation Solution
A system comprising a partitioned engine compartment with a sealing rib and a rear pump to separate water from air, utilizing a labyrinth air passage and dual pumps for efficient water removal, including a mechanical and electrical pump for effective water suction, ensuring continuous air supply and preventing water ingress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a suction pump or reverse valve is used at the suction inlet, then water leakage into the engine compartment is reduced, but during dynamic rides with large angles in turns and jumps, water still leaks into the engine compartment
Solution Approach 1:
The float body is divided into separate compartments: a first compartment for air intake and a second compartment for engine housing. A partition wall with a water seal structure separates these compartments, preventing water from the first compartment from entering the second compartment where the engine is located. This segmentation allows the air intake system to be isolated from water contamination during dynamic rides.
Solution Approach 2:
A water seal structure (labyrinth seal) is introduced as an intermediary element between the air intake compartment and the engine compartment. This seal structure allows air to pass through while preventing water from entering the engine compartment, effectively mediating between the need for air supply and the need for water protection during dynamic operations.
2Reliability
If water suction arrangements are added to prevent water leakage, then water removal capability is improved, but the volume of the water separator decreases and air supply to the engine is insufficient
Solution Approach 1:
The system is segmented into distinct functional zones: an air intake compartment, an engine compartment, and separate water collection areas. The partition wall creates independent spaces that allow water to be collected and removed without interfering with the air supply pathway to the engine, maintaining sufficient air volume while enabling effective water removal.
Solution Approach 2:
Water is extracted from the air intake compartment through dedicated water outlet openings in the partition wall, which lead to external drainage. This extraction mechanism removes water from the system without occupying space that would be needed for air supply to the engine, resolving the conflict between water removal and air supply volume.
3Area of stationary object
If long pipes are used for underpressure suction, then water suction coverage is increased, but pressure losses from friction between air and pipe walls increase
Solution Approach 1:
Water is extracted directly at the source through water outlet openings positioned in the partition wall, eliminating the need for long suction pipes. The water removal occurs at the interface between compartments rather than requiring extended piping, thus minimizing friction losses while maintaining effective water suction coverage.
Solution Approach 2:
The partition wall with water outlet openings acts as an intermediary that enables direct water removal at the compartment boundary. This eliminates the need for long internal piping by providing direct access points for water extraction, reducing pressure losses while maintaining effective water removal capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively prevents water from entering the engine compartment, maintaining engine performance and reliability even during tilting or overturning, by utilizing a labyrinth air passage and dual pumps for efficient water removal, ensuring sufficient air supply and minimizing engine damage.
Implementation Method 1
at least one back pump for sucking out the leaked water is arranged in the rear part of the inner space of the float
Implementation Method 2
a sealing rib extends from the front part of the partition towards the tip of the float separating the air supply and suction opening
Data Source
Figure 1
Figure 2~3
Figure 4~5c
AI summary
The present invention is a system for air supply to the engine of a motor float comprising a bottom part and an upper part of the body defining the inner space of the float, in which a combustion engine is arranged, wherein the upper part of the body is in its front part provided with an air supply, characterized in that the combustion engine is arranged in the engine compartment and separated from the rest of the inner space of the float by means of a partition provided with a suction opening in its front part, wherein to provide the circulation of air in the inner space of the float a sealing rib extends from the front part of the partition towards the tip of the float, separating the air supply and suction opening from one another, wherein at least one rear pump for sucking the leaking water is arranged in the rear part of the inner space of the float. The main object of the invention is thus to use the interspace of the float to provide separation of water and air, when eventual separated water may be sucked away by a pump operating on any principle (electric, vacuum, etc.).