PL148805B2 - Variable-pitch fan impeller blade for axial fans,in particular those used in main mine ventilation systems - Google Patents

Variable-pitch fan impeller blade for axial fans,in particular those used in main mine ventilation systems

Info

Publication number
PL148805B2
PL148805B2 PL26362387A PL26362387A PL148805B2 PL 148805 B2 PL148805 B2 PL 148805B2 PL 26362387 A PL26362387 A PL 26362387A PL 26362387 A PL26362387 A PL 26362387A PL 148805 B2 PL148805 B2 PL 148805B2
Authority
PL
Poland
Prior art keywords
variable
those used
particular those
impeller blade
fan impeller
Prior art date
Application number
PL26362387A
Other versions
PL263623A2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to PL26362387A priority Critical patent/PL148805B2/en
Publication of PL263623A2 publication Critical patent/PL263623A2/en
Publication of PL148805B2 publication Critical patent/PL148805B2/en

Links

PL26362387A 1987-01-09 1987-01-09 Variable-pitch fan impeller blade for axial fans,in particular those used in main mine ventilation systems PL148805B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL26362387A PL148805B2 (en) 1987-01-09 1987-01-09 Variable-pitch fan impeller blade for axial fans,in particular those used in main mine ventilation systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL26362387A PL148805B2 (en) 1987-01-09 1987-01-09 Variable-pitch fan impeller blade for axial fans,in particular those used in main mine ventilation systems

Publications (2)

Publication Number Publication Date
PL263623A2 PL263623A2 (en) 1987-12-28
PL148805B2 true PL148805B2 (en) 1989-11-30

Family

ID=20034575

Family Applications (1)

Application Number Title Priority Date Filing Date
PL26362387A PL148805B2 (en) 1987-01-09 1987-01-09 Variable-pitch fan impeller blade for axial fans,in particular those used in main mine ventilation systems

Country Status (1)

Country Link
PL (1) PL148805B2 (en)

Also Published As

Publication number Publication date
PL263623A2 (en) 1987-12-28

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