JPS5726333A - Ventilating device - Google Patents

Ventilating device

Info

Publication number
JPS5726333A
JPS5726333A JP10118780A JP10118780A JPS5726333A JP S5726333 A JPS5726333 A JP S5726333A JP 10118780 A JP10118780 A JP 10118780A JP 10118780 A JP10118780 A JP 10118780A JP S5726333 A JPS5726333 A JP S5726333A
Authority
JP
Japan
Prior art keywords
opening
motor
polluted air
speed
cover
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
JP10118780A
Other languages
Japanese (ja)
Other versions
JPS6119893B2 (en
Inventor
Sakae Kamata
Masaki Inoue
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 JP10118780A priority Critical patent/JPS5726333A/en
Publication of JPS5726333A publication Critical patent/JPS5726333A/en
Publication of JPS6119893B2 publication Critical patent/JPS6119893B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Ventilation (AREA)

Abstract

PURPOSE: To collect a large amount of polluted air excellently, and to discharge air effectively by mounting a controlling means increasing and decreasing the speed of a fan motor and adjusting the speed when an opening area of an opening section of an intake port is enlarged or reduced.
CONSTITUTION: The intake opening secton is mounted to a lower section of a ventilating fan proper hood 1. The opening area of the opening section of the intake port changes variously through the variable opening and closing of a cover 9. A condition (a) that the cover 9 is opened represents an example at the time when there are much polluted air b generated from an oven, an the motor 3 is turned at high speed through the controlling means. A condition (b) that the cover 9 is closed gives an example at the time when there is little polluted air b, and the motor 3 is rotated at low speed through the controlling means. That is, the velocity of a wind sucked around the opening section does not lower because the opening area is reduced in response to a turn at low speed even when the motor is turned at low speed. Accordingly, the polluted air is collected positively and discharged.
COPYRIGHT: (C)1982,JPO&Japio
JP10118780A 1980-07-25 1980-07-25 Ventilating device Granted JPS5726333A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10118780A JPS5726333A (en) 1980-07-25 1980-07-25 Ventilating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10118780A JPS5726333A (en) 1980-07-25 1980-07-25 Ventilating device

Publications (2)

Publication Number Publication Date
JPS5726333A true JPS5726333A (en) 1982-02-12
JPS6119893B2 JPS6119893B2 (en) 1986-05-20

Family

ID=14293967

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10118780A Granted JPS5726333A (en) 1980-07-25 1980-07-25 Ventilating device

Country Status (1)

Country Link
JP (1) JPS5726333A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61199026A (en) * 1985-02-28 1986-09-03 Kobe Steel Ltd Radiant tube for heat treating furnace
JPS62132332U (en) * 1986-02-14 1987-08-20
JPS62149731U (en) * 1986-03-14 1987-09-22
US11067293B1 (en) * 2019-04-09 2021-07-20 Alan Feiertag Smoke director device configured to extend over a cooking surface of a cooking device
CN116816645A (en) * 2023-07-28 2023-09-29 平湖市金兔实业有限公司 Protection structure and protection method for crankcase cover air inlet of air compressor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61199026A (en) * 1985-02-28 1986-09-03 Kobe Steel Ltd Radiant tube for heat treating furnace
JPS62132332U (en) * 1986-02-14 1987-08-20
JPS62149731U (en) * 1986-03-14 1987-09-22
US11067293B1 (en) * 2019-04-09 2021-07-20 Alan Feiertag Smoke director device configured to extend over a cooking surface of a cooking device
CN116816645A (en) * 2023-07-28 2023-09-29 平湖市金兔实业有限公司 Protection structure and protection method for crankcase cover air inlet of air compressor

Also Published As

Publication number Publication date
JPS6119893B2 (en) 1986-05-20

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