JPH01134838U - - Google Patents
Info
- Publication number
- JPH01134838U JPH01134838U JP2953788U JP2953788U JPH01134838U JP H01134838 U JPH01134838 U JP H01134838U JP 2953788 U JP2953788 U JP 2953788U JP 2953788 U JP2953788 U JP 2953788U JP H01134838 U JPH01134838 U JP H01134838U
- Authority
- JP
- Japan
- Prior art keywords
- rotation speed
- fan motor
- revolutions
- clogging
- comparison means
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2953788U JPH01134838U (sv) | 1988-03-04 | 1988-03-04 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2953788U JPH01134838U (sv) | 1988-03-04 | 1988-03-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01134838U true JPH01134838U (sv) | 1989-09-14 |
Family
ID=31253842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2953788U Pending JPH01134838U (sv) | 1988-03-04 | 1988-03-04 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01134838U (sv) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0642791A (ja) * | 1992-05-01 | 1994-02-18 | Chiyoufu Seisakusho:Kk | 空気調和機 |
JP2002062589A (ja) * | 2000-08-16 | 2002-02-28 | Sony Corp | 目詰まり検知装置、映像表示装置および目詰まり検知方法 |
US11865483B2 (en) | 2018-12-26 | 2024-01-09 | Nec Corporation | State estimation apparatus, method, and program recording medium |
-
1988
- 1988-03-04 JP JP2953788U patent/JPH01134838U/ja active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0642791A (ja) * | 1992-05-01 | 1994-02-18 | Chiyoufu Seisakusho:Kk | 空気調和機 |
JP2002062589A (ja) * | 2000-08-16 | 2002-02-28 | Sony Corp | 目詰まり検知装置、映像表示装置および目詰まり検知方法 |
US11865483B2 (en) | 2018-12-26 | 2024-01-09 | Nec Corporation | State estimation apparatus, method, and program recording medium |
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