Title:
給気システム
Document Type and Number:
Japanese Patent JP7441489
Kind Code:
B2
Abstract:
To provide an air supply system in which pressure difference between indoor and outdoor can be solved efficiently.SOLUTION: A motor generates voltage according to a rotational speed of a fan 37. A passive rotational speed of the fan 37 depends on the flow speed (flow rate) of the fluid flowing in an air supply port 39a. Also, the flow speed (flow rate) flowing in the air supply port 39a depends of the pressure difference between indoor and outdoor. Therefore, by detecting the voltage generated by the motor by a voltage detecting part 29, the pressure difference between indoor and outdoor can be grasped. Also, when the pressure difference (voltage) is detected by a passive rotation of the fan 37 and when it is determined that the pressure difference (voltage) is equal to or more than the predefined value, other air supply fan 7 is operated by a control part. Accordingly, compared to the fan 37, a large-scale air supply fan 7 can be applied to thereby obtain sufficient air supply property.SELECTED DRAWING: Figure 1
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Inventors:
Kazuyuki Kobayashi
Kajiro Watanabe
Kajiro Watanabe
Application Number:
JP2020005879A
Publication Date:
March 01, 2024
Filing Date:
January 17, 2020
Export Citation:
Assignee:
Hosei University
International Classes:
F24F7/007; F24F7/02; F24F11/77; F24F11/88; H02K7/14
Domestic Patent References:
| JP63180030A | ||||
| JP2015098950A | ||||
| JP2019002628A | ||||
| JP2011133221A | ||||
| JP1123933A | ||||
| JP2006097959A | ||||
| JP60000244A | ||||
| JP5196268A | ||||
| JP2001221474A | ||||
| JP8327110A | ||||
| JP3168444U | ||||
| JP58045410A | ||||
| JP2012223150A | ||||
| JP8014610A |
Foreign References:
| US20050156053 |
Attorney, Agent or Firm:
Seiichi Inoue