Invention Grant
- Patent Title: Vacuum cleaner turbo-brush
- Patent Title (中): 真空吸尘器涡轮刷
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Application No.: US13448548Application Date: 2012-04-17
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Publication No.: US09084520B2Publication Date: 2015-07-21
- Inventor: Walter Assmann , Volker Marks , Cornelius Wolf
- Applicant: Walter Assmann , Volker Marks , Cornelius Wolf
- Applicant Address: DE Guetersloh
- Assignee: MIELE & CIE, KG
- Current Assignee: MIELE & CIE, KG
- Current Assignee Address: DE Guetersloh
- Agency: Leydig, Voit & Mayer, Ltd.
- Priority: EP11401062 20110418
- Main IPC: A47L5/00
- IPC: A47L5/00 ; A47L9/04

Abstract:
A vacuum cleaner turbo-brush includes an axial-inflow impulse turbine. The turbine includes a turbine shaft non-rotatably combined with an impeller that includes aerodynamically shaped, stud-like projections uniformly distributed along a circumferential line of the impeller. The aerodynamic shape has a cross-sectional area that is parabolically bound on both sides. The turbine also includes a guide stage having guide surfaces, each of which has a cross section including, in a direction of incident flow, a circular arc followed by a straight section. A bearing housing surrounds the turbine shaft and forms at least one of a transition and the guide stage in a region of the impeller, and the bearing housing, in a region of the turbine shaft, forming a casing for the turbine shaft and including bearing elements that support the turbine shaft.
Public/Granted literature
- US20120260457A1 VACUUM CLEANER TURBO-BRUSH Public/Granted day:2012-10-18
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