HUP9902587A2 - Flow rate control element for ducts - Google Patents

Flow rate control element for ducts

Info

Publication number
HUP9902587A2
HUP9902587A2 HU9902587A HUP9902587A HUP9902587A2 HU P9902587 A2 HUP9902587 A2 HU P9902587A2 HU 9902587 A HU9902587 A HU 9902587A HU P9902587 A HUP9902587 A HU P9902587A HU P9902587 A2 HUP9902587 A2 HU P9902587A2
Authority
HU
Hungary
Prior art keywords
flow rate
leaves
housing
rate control
ducts
Prior art date
Application number
HU9902587A
Other languages
Hungarian (hu)
Inventor
Raimo Huhtala
Original Assignee
ABB Fläkt Oy
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 ABB Fläkt Oy filed Critical ABB Fläkt Oy
Priority to HU9902587A priority Critical patent/HUP9902587A2/en
Publication of HUP9902587A2 publication Critical patent/HUP9902587A2/en

Links

Landscapes

  • Sliding Valves (AREA)
  • Air-Flow Control Members (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)

Abstract

The flow rate control, based on the iris diaphragm principle, including an annular housing (2), comprises a base ring (3) with a fitted cover, a number of curved shaped leaves (7) fitted at one end to the housing to pivot, and a control ring (8) with radial slots (9). The free ends of the leaves move in the slots between open and closed positions, in a stepless manner, by turning the control ring. Each leaf, when installed in the housing, has a non-penetrating indented facing side which engages the adjacent complimentary indented facing side to provide a guide and unobstructed movement of the leaves when being rotated.
HU9902587A 1997-01-28 1997-01-28 Flow rate control element for ducts HUP9902587A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HU9902587A HUP9902587A2 (en) 1997-01-28 1997-01-28 Flow rate control element for ducts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU9902587A HUP9902587A2 (en) 1997-01-28 1997-01-28 Flow rate control element for ducts

Publications (1)

Publication Number Publication Date
HUP9902587A2 true HUP9902587A2 (en) 2000-02-28

Family

ID=89998909

Family Applications (1)

Application Number Title Priority Date Filing Date
HU9902587A HUP9902587A2 (en) 1997-01-28 1997-01-28 Flow rate control element for ducts

Country Status (1)

Country Link
HU (1) HUP9902587A2 (en)

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