JPS57105598A - Fan - Google Patents

Fan

Info

Publication number
JPS57105598A
JPS57105598A JP18220880A JP18220880A JPS57105598A JP S57105598 A JPS57105598 A JP S57105598A JP 18220880 A JP18220880 A JP 18220880A JP 18220880 A JP18220880 A JP 18220880A JP S57105598 A JPS57105598 A JP S57105598A
Authority
JP
Japan
Prior art keywords
air pressure
blades
auxiliary
blower
raised
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
Application number
JP18220880A
Other languages
Japanese (ja)
Inventor
Shusui Ikegami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP18220880A priority Critical patent/JPS57105598A/en
Publication of JPS57105598A publication Critical patent/JPS57105598A/en
Pending legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: To enable to eliminate uselessly consumed power by a method wherein auxiliary blades are fitted to the outside of the side plate of an impeller mounted on a rotary shaft so as to increase the air pressure only over the necessary running range of the blower.
CONSTITUTION: The auxiliary baldes are fitted on the outside surface of the side plate 52 of the impeller 5 by means of welding, clamping by bolts, riveting or the like. The number of the auxiliary blades is almost same as that of blades 3. In this case, the size and number of the auxiliary blades are determined by the magnitude of the desired air pressure. Accordingly the air pressure can be raised only near the point of cut-off in accordance with the relationship between air flow and air pressure and the air pressure can be raised only at the necessary running part of the blower so the elimination of the uselessly consumed power is attained.
COPYRIGHT: (C)1982,JPO&Japio
JP18220880A 1980-12-22 1980-12-22 Fan Pending JPS57105598A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18220880A JPS57105598A (en) 1980-12-22 1980-12-22 Fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18220880A JPS57105598A (en) 1980-12-22 1980-12-22 Fan

Publications (1)

Publication Number Publication Date
JPS57105598A true JPS57105598A (en) 1982-07-01

Family

ID=16114238

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18220880A Pending JPS57105598A (en) 1980-12-22 1980-12-22 Fan

Country Status (1)

Country Link
JP (1) JPS57105598A (en)

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