Extractor Air Duct Layout for Fluid Separation and Collection
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Solution Overview
Problem
Extractor cleaning machines face inefficiencies in fluid and dirt collection due to limitations in the design of air ducts, which affect the overall cleaning performance and fluid separation process.
Innovation Solution
The extractor cleaning machine incorporates a movable base with a suction nozzle, a recovery tank, and an air duct system that fluidly connects the tank and nozzle, utilizing a tank tray and air duct with specific apertures and a nonlinear central axis to facilitate airflow and fluid separation, enhancing the collection and separation of cleaning solutions and dirt.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional air duct design is used, then the structure is simple, but the fluid and dirt collection efficiency is poor
Solution Approach 1:
The air duct is divided into multiple segments including a body portion, a tank tray portion, and a recovery tank portion, each with specific functions. The body portion has a nonlinear central axis for airflow, the tank tray portion provides structural support and fluid passage, and the recovery tank portion collects separated fluid and dirt, allowing efficient collection without excessive complexity
Solution Approach 2:
The air duct transitions from a simple linear structure to a three-dimensional complex shape with a nonlinear central axis in the body portion and integrated tank tray features. This dimensional complexity enables improved airflow patterns and separation efficiency while maintaining a unified duct structure
2Reliability
If the air duct is coupled to the tank tray, then fluid separation is improved, but the device complexity increases
Solution Approach 1:
The air duct is coupled to the tank tray to integrate the airflow path with the fluid collection system. The tank tray portion of the air duct serves dual functions as both an air passage and a support structure for the recovery tank, improving fluid separation while consolidating components
Solution Approach 2:
The tank tray portion of the air duct serves multiple functions: it provides structural support for the recovery tank, creates a fluid passage between the suction nozzle and recovery tank, and contributes to the overall airflow dynamics. This multi-functionality improves separation effectiveness without adding separate dedicated components
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 improves the efficiency of fluid and dirt collection, allowing for effective separation and discharge of cleaning solutions, enhancing the cleaning performance and surface cleanliness.
Implementation Method 1
a suction source operable to draw fluid and dirt from the surface through the suction nozzle
Implementation Method 2
The air duct is coupled to the tank tray to define a passageway that fluidly couples the recovery tank and the suction nozzle
Data Source
AI summary
An extractor cleaning machine that includes a base having a suction nozzle and a body coupled to the base. The extractor cleaning machine also includes a suction source in fluid communication with the suction nozzle. The extractor cleaning machine further includes a recovery tank configured to store fluid and dirt drawn through the suction nozzle, and a tank tray coupled to at least one of the base and the body. The tank tray including a top surface and a bottom surface. The recovery tank is coupled to the tank tray adjacent the top surface. The extractor cleaning machine also includes an air duct coupled to the tank tray adjacent the bottom surface to define a passageway that fluidly couples the recovery tank and the suction nozzle.


