JPS54157311A - Propeller fan with disk ring - Google Patents

Propeller fan with disk ring

Info

Publication number
JPS54157311A
JPS54157311A JP6583378A JP6583378A JPS54157311A JP S54157311 A JPS54157311 A JP S54157311A JP 6583378 A JP6583378 A JP 6583378A JP 6583378 A JP6583378 A JP 6583378A JP S54157311 A JPS54157311 A JP S54157311A
Authority
JP
Japan
Prior art keywords
disk ring
air
blade
flow
sucked
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
JP6583378A
Other languages
Japanese (ja)
Inventor
Akio Suzuki
Masao Moro
Yoji Sekine
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6583378A priority Critical patent/JPS54157311A/en
Publication of JPS54157311A publication Critical patent/JPS54157311A/en
Pending legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: To provide a conical disk ring opening backwards adjacent the rear side of blade such that an impeller by itself blows in the manner of a cone with wide vertical angle.
CONSTITUTION: A propeller fan 2 is provided on the rear edge 4b of blade 4 with a conical disk ring 5 opening backwards. Thus the radial differential pressure by aid of th action of centrifugal fan is balanced with the axail differential pressure so that air flow is slanted. Also in this case, since air flow d sucked from the central portion is interposed between the disk ring 5 and air C sucked from the outer periphery, the contact of air C with the disk ring 5 reduced so that the air C is discharged obliquely with small loss and high efficiency. Also the disk ring 5 acts to bias air to the central portion of the blow side and flow it from the inner diameter side F of the disk ring 5 to the blade side 4 so that said flow d is biased to the radial side to provide a fluid element blowing at wide angle.
COPYRIGHT: (C)1979,JPO&Japio
JP6583378A 1978-06-02 1978-06-02 Propeller fan with disk ring Pending JPS54157311A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6583378A JPS54157311A (en) 1978-06-02 1978-06-02 Propeller fan with disk ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6583378A JPS54157311A (en) 1978-06-02 1978-06-02 Propeller fan with disk ring

Publications (1)

Publication Number Publication Date
JPS54157311A true JPS54157311A (en) 1979-12-12

Family

ID=13298405

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6583378A Pending JPS54157311A (en) 1978-06-02 1978-06-02 Propeller fan with disk ring

Country Status (1)

Country Link
JP (1) JPS54157311A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1271782A (en) * 1969-03-11 1972-04-26 Lyonnaise Ventilation Improvements in or relating to fans
JPS5377319A (en) * 1976-12-20 1978-07-08 Toyota Central Res & Dev Lab Inc Axial-flow fan
JPS54104013A (en) * 1978-02-03 1979-08-15 Hitachi Ltd Propeller fan with disk ring

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1271782A (en) * 1969-03-11 1972-04-26 Lyonnaise Ventilation Improvements in or relating to fans
JPS5377319A (en) * 1976-12-20 1978-07-08 Toyota Central Res & Dev Lab Inc Axial-flow fan
JPS54104013A (en) * 1978-02-03 1979-08-15 Hitachi Ltd Propeller fan with disk ring

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