Cleaning unit with central injection zone, surrounding suction area and fixed flow guide element for locally limited wet cleaning of textile surfaces
The cleaning unit with a centrally arranged injection nozzle and stationary flow guide element addresses the inefficiency of vacuum-based systems by creating a locally confined two-phase flow for efficient cleaning and drying of textile surfaces without linear movement, enhancing adaptability to different wet vacuum systems.
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- SCHULZ STEFAN
- Filing Date
- 2026-02-26
- Publication Date
- 2026-04-23
AI Technical Summary
Existing vacuum-based wet cleaning systems for textile surfaces lack efficiency in locally confined cleaning and drying without requiring linear movement across the surface.
A cleaning unit with a centrally arranged injection nozzle, annular suction area, and stationary flow guide element that creates a locally confined two-phase flow for cleaning and drying by injecting cleaning emulsion and using vacuum to transport residual moisture via capillary action.
Enables efficient cleaning and drying of textile surfaces without linear movement, adaptable to various wet vacuum systems, and ensures effective removal of residual moisture.
Smart Images
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Abstract
Description
[0001]The invention relates to a cleaning unit for vacuum-based wet cleaning systems for the targeted cleaning of textile surfaces. The cleaning unit comprises a housing (1) with at least one centrally arranged injection nozzle (2), an annular suction area (5) surrounding the injection nozzle, at least one air inlet channel (3), and at least one stationary flow guide element (4). Bores (8) in the casing, a sealing area / contact edge (9), a water channel (10), and optionally a snap-in mechanism (11) may be provided. The cleaning emulsion is injected into the textile structure via the injection nozzle (2). A vacuum creates an air-cleaning emulsion mixture, which is radially accelerated by the flow guide element (4) and directed into the annular suction area (5). This results in a locally confined, two-phase flow.After the emulsion supply has ceased, air continues to be drawn through the textile, thereby transporting residual moisture by capillary action and removing it convectively. Cleaning and drying occur in a stationary position without any linear movement across the surface. The cleaning unit is available in various sizes and can be adapted to different wet vacuum systems. List of characters Fig. 1: Perspective drawing. Fig. 2: Rear view. Fig. 3: Sectional view. Fig. 4: Front view.
Claims
[1] Cleaning unit for localized wet cleaning of textile surfaces, comprising a housing (1), at least one centrally arranged injection nozzle (2), an annular suction area (5) surrounding the injection nozzle, at least one air inlet channel (3) and at least one stationary flow guide element (4), characterized by , that an air-cleaning emulsion mixture can be generated by negative pressure, which can be guided radially into the annular suction area (5) by the flow guide element, thereby creating a locally limited two-phase flow through the pile area and wherein the cleaning unit is designed for stationary cleaning without linear displacement movement. [2] Cleaning unit according to claim 1, characterized by , that the flow guide element generates turbulence and shear forces, which cause a mechanical-hydrodynamic release of dirt particles. [3] Cleaning unit according to one of the preceding claims, characterized by, that after the emulsion supply has ceased, a continuous airflow can be generated through the pile, whereby residual moisture is drawn in by capillary action and removed convectively. [4] Cleaning unit according to one of the preceding claims, characterized by that the geometric dimensions are scalable. [5] Cleaning unit according to any one of the preceding claims, characterized by that the cleaning unit can be connected to different wet vacuum systems via adapter or connecting elements.