Wet and Dry Vacuum Cleaner Diffuser Inlet for Layered Dirt Deposition
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Solution Overview
Problem
Conventional wet and dry vacuum cleaners inefficiently utilize the dirt container volume due to undesired stirring and swirling of dirt particles, leading to premature shut-off in wet applications and short filter life in dry applications.
Innovation Solution
The inlet connector is designed as a diffuser with horizontal outflow, directing the suction flow substantially parallel to the dirt container's base surface, and featuring a Y-shaped design with an inclined inflow opening and two outflow openings to decelerate the suction flow, promoting layered deposition and optimal volume utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the inlet connector is oriented directly into the dirt container, then the suction flow can be directed into the container, but this causes undesired stirring and swirling of dirt particles leading to premature shut-off and short filter life
Solution Approach 1:
Instead of directing the suction flow vertically downward into the dirt container as in conventional designs, the inlet connector is oriented horizontally so that the suction flow enters the dirt container from the side in a substantially horizontal direction, parallel to the base surface. This inverted approach eliminates the stirring and swirling effects that occur with vertical downward flow.
Solution Approach 2:
The inlet connector is designed with a horizontal outflow direction, changing the flow dimension from vertical (conventional) to horizontal. This dimensional change allows the suction flow to enter the dirt container parallel to the base surface, promoting layered deposition of dirt particles without disturbing previously deposited layers, thereby extending filter service life.
2Productivity
If the inlet connector is arranged to point into the volume of the dirt container or arranged for downward spatial direction, then dirt can be conducted into the container, but the available volume of the dirt container cannot be optimally utilized
Solution Approach 1:
Rather than directing the inlet connector downward into the dirt container volume as conventionally done, the invention inverts the approach by orienting the inlet connector horizontally. This allows the suction flow to enter along the base surface, maximizing the vertical height available for dirt accumulation and optimizing the usable volume of the dirt container.
Solution Approach 2:
By changing the inlet connector orientation from vertical/downward to horizontal, the design utilizes the vertical dimension of the dirt container more effectively. The horizontal flow direction allows dirt to be deposited in layers that extend upward, maximizing the container's volume capacity for storing dirt without premature shut-off.
3Speed
If the suction flow is directed at high speed into the dirt container, then efficient dirt collection is achieved, but this causes stirring and swirling that reduces effective volume utilization
Solution Approach 1:
Instead of directing high-speed suction flow vertically downward into the dirt container where it causes turbulent stirring, the invention inverts the flow direction to horizontal. This allows the high-speed flow to enter parallel to the base surface, converting the kinetic energy into layered deposition rather than vertical mixing, thereby maintaining collection efficiency while maximizing volume utilization.
Solution Approach 2:
The horizontal orientation of the inlet connector changes the dimension of flow entry from vertical to horizontal. This dimensional change allows the suction flow to travel along the base surface and deposit dirt in organized layers, converting the high-speed flow's kinetic energy into horizontal transport and layered accumulation rather than vertical turbulence, thus optimizing effective volume.
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
This design enhances the effective use of the dirt container volume by reducing swirling and extending filter life, allowing for improved filling and space-saving deposition of dust and water, thereby optimizing the vacuum cleaner's performance.
Implementation Method 1
The inlet connector is designed as a diffuser with horizontal outflow
Implementation Method 2
The rebounding of the suction flow from the inner wall decelerates or slows the drawn-in air with the dirt particles
Implementation Method 3
A layered introduction of dirt particles into the dirt container, without swirling in the dirt container, is rather promoted
Data Source
AI summary
A wet and dry vacuum cleaner having a vacuum cleaner head, having a dirt container and having an inlet fitting which is designed for the connection of a suction hose, wherein the inlet fitting is connected in terms of flow to an inlet connector, which is situated in the wet and dry vacuum cleaner, of the wet and dry vacuum cleaner such that dirt particles that are drawn in can pass via the inlet connector into the dirt container, wherein the inlet connector is designed as a diffuser with horizontal outflow. Furthermore, the inlet connector of the wet and dry vacuum cleaner may have a Y shape in the sense that the inlet connector comprises one inflow opening for the suction flow and two outlet openings.