Title:
FLOOR CLEAN UNIT
Document Type and Number:
Japanese Patent JP2023023210
Kind Code:
A
Abstract:
To optimize the air volume of a fan, suppress power consumption of the fan, and suppress increase of noise, regardless of the position of a suction port of a body, in a floor clean unit for purifying air discharged with a sirocco fan.SOLUTION: A floor clean unit comprises a sirocco fan that rotates an impeller provided in a fan casing around a rotational axis to suction air from a fan suction port and discharge the air from a fan discharge port, and a filter that purifies the discharged air, where on a surface perpendicular to the fan suction port and the fan discharge port, an intake port that takes in outside air is provided, and a plurality of guide plates are arranged in the fan casing at intervals on the circumference of the fan suction port.SELECTED DRAWING: Figure 2
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Inventors:
YAMAKAWA HIRONOBU
KOBAYASHI KATSUTOSHI
ADACHI TOHIKO
YOKOYAMA MAKOTO
KOBAYASHI KATSUTOSHI
ADACHI TOHIKO
YOKOYAMA MAKOTO
Application Number:
JP2021128512A
Publication Date:
February 16, 2023
Filing Date:
August 04, 2021
Export Citation:
Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD
International Classes:
F04D29/44; F04D25/16; F04D29/66
Attorney, Agent or Firm:
Seiryo Patent Attorneys Corporation
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