JPS643300A - Centrifugal fan - Google Patents

Centrifugal fan

Info

Publication number
JPS643300A
JPS643300A JP15699587A JP15699587A JPS643300A JP S643300 A JPS643300 A JP S643300A JP 15699587 A JP15699587 A JP 15699587A JP 15699587 A JP15699587 A JP 15699587A JP S643300 A JPS643300 A JP S643300A
Authority
JP
Japan
Prior art keywords
fan blade
high step
step part
fan
air resistance
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.)
Granted
Application number
JP15699587A
Other languages
Japanese (ja)
Other versions
JPH0663511B2 (en
Inventor
Takatsugu Sakaguchi
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.)
Toshiba Tec Corp
Original Assignee
Tokyo Electric Co Ltd
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 Tokyo Electric Co Ltd filed Critical Tokyo Electric Co Ltd
Priority to JP62156995A priority Critical patent/JPH0663511B2/en
Publication of JPS643300A publication Critical patent/JPS643300A/en
Publication of JPH0663511B2 publication Critical patent/JPH0663511B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE:To reduce air resistance to a fan blade by forming protrusions on a surface abutting on a fan plate of a fan blade of a low and a high step part, and caulking only the high step part. CONSTITUTION:Protrusions 132-135 of a fan blade 130 are composed of high step parts 132a-135a whose heights from an abutting surface 131 exceed the thickness of a fan plate and low step part 132b-135b whose heights almost equal the above-mentioned thickness, and only the high step parts 132a-135a flatly caulked to make the protruding height of the caulking lower. Air resistance of the fan blade can thereby be reduced during its rotation.
JP62156995A 1987-06-24 1987-06-24 Centrifugal fan Expired - Fee Related JPH0663511B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62156995A JPH0663511B2 (en) 1987-06-24 1987-06-24 Centrifugal fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62156995A JPH0663511B2 (en) 1987-06-24 1987-06-24 Centrifugal fan

Publications (2)

Publication Number Publication Date
JPS643300A true JPS643300A (en) 1989-01-09
JPH0663511B2 JPH0663511B2 (en) 1994-08-22

Family

ID=15639879

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62156995A Expired - Fee Related JPH0663511B2 (en) 1987-06-24 1987-06-24 Centrifugal fan

Country Status (1)

Country Link
JP (1) JPH0663511B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01310198A (en) * 1988-06-08 1989-12-14 Matsushita Electric Ind Co Ltd electric blower

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56156515A (en) * 1980-05-06 1981-12-03 Iwamoto Kogyo Kk Calking fixing method of bolt
JPS60256598A (en) * 1984-06-01 1985-12-18 Matsushita Electric Ind Co Ltd Electric blower
JPS6117708A (en) * 1984-07-05 1986-01-25 株式会社東芝 Connection of thin plate and thick plate

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56156515A (en) * 1980-05-06 1981-12-03 Iwamoto Kogyo Kk Calking fixing method of bolt
JPS60256598A (en) * 1984-06-01 1985-12-18 Matsushita Electric Ind Co Ltd Electric blower
JPS6117708A (en) * 1984-07-05 1986-01-25 株式会社東芝 Connection of thin plate and thick plate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01310198A (en) * 1988-06-08 1989-12-14 Matsushita Electric Ind Co Ltd electric blower

Also Published As

Publication number Publication date
JPH0663511B2 (en) 1994-08-22

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees