JPS6483898A - Bellmouth for propeller fan - Google Patents

Bellmouth for propeller fan

Info

Publication number
JPS6483898A
JPS6483898A JP24231687A JP24231687A JPS6483898A JP S6483898 A JPS6483898 A JP S6483898A JP 24231687 A JP24231687 A JP 24231687A JP 24231687 A JP24231687 A JP 24231687A JP S6483898 A JPS6483898 A JP S6483898A
Authority
JP
Japan
Prior art keywords
bellmouth
guide wall
radius
air
peripheral edge
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
JP24231687A
Other languages
Japanese (ja)
Inventor
Shunichi Sakamoto
Mutsunori Nakamura
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 JP24231687A priority Critical patent/JPS6483898A/en
Publication of JPS6483898A publication Critical patent/JPS6483898A/en
Pending legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE:To abate a noise being produced out of a fan by straightening a flow of air to be inhaled by a propeller fan, while forming a guide wall with roundness and a radius part guide wall continuing in the former both in the peripheral edge of a bellmouth in acceleration, respectively. CONSTITUTION:When a motor 1 is driven, a propeller fan 2 rotates, and air flows from the suction side A to the blowoff side B. The air is straightened by a bellmouth 3 and simultaneously accelerated, so that abatement in a noise and improvement in an airflow characteristic are achieved. The bellmouth 3 is set up in the inner circumference of a partition plate 5 partitioning off the suction side A and the blowoff side, and it has a straight wall 3a and a curved wall 3b for inward guidance. In this case, a guide wall 3c provided with a radius (roundness) of the specified diameter phiD and a radius part guide wall 3d with the specified radius R continuing in the former are formed in a peripheral edge 3e of the curved wall 3b, respectively. With this constitution, separation of an air flow and turbulence of an inflow state or the like in this peripheral edge 3e are controlled.
JP24231687A 1987-09-25 1987-09-25 Bellmouth for propeller fan Pending JPS6483898A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24231687A JPS6483898A (en) 1987-09-25 1987-09-25 Bellmouth for propeller fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24231687A JPS6483898A (en) 1987-09-25 1987-09-25 Bellmouth for propeller fan

Publications (1)

Publication Number Publication Date
JPS6483898A true JPS6483898A (en) 1989-03-29

Family

ID=17087401

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24231687A Pending JPS6483898A (en) 1987-09-25 1987-09-25 Bellmouth for propeller fan

Country Status (1)

Country Link
JP (1) JPS6483898A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100376805C (en) * 2004-07-21 2008-03-26 台达电子工业股份有限公司 Radiation device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100376805C (en) * 2004-07-21 2008-03-26 台达电子工业股份有限公司 Radiation device

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