Cooling Technology Institute - Terms | Definitions | Abbreviations | Letter symbols:
Fan ring - (see Fan Stack).
Fan stack - Cylindrical or modified cylindrical structure in which the fan operates. Fan stacks are used on both induced draft and forced draft axial flow propeller fans. Also known as Cylinder.
( http://www.cti.org/whatis/glossary.shtml )


Može se videti na slici, poz. 4:

„World Intellectual Property Organization
(WO/1998/037319) FAN RING SEAL
...
(EN) A seal (8) for a gap between a fan ring (4) round a cooling fan (2) and a fan housing (6) on a radiator (3) pertaining to a vehicle engine is intended to seal movably relative to the fan housing (6).“
( http://www.wipo.int/pctdb/en/wo.jsp?wo=1998037319 )


Videti sliku br. 14:

„EVAPCO Europe
Upute za Dizanje, Prenošenje i Montažu
...
Preporučeni način dizanja na dulje vrijeme prikazuje slika 14. Treba staviti sigurnosne petlje i razupore između kablova, kako se ne bi oštetile prirubnice na sekciji ili cilindrično kućište ventilatora.“
( http://www.evapcoeurope.net/uploaded-net/documents/eu/Riggin... )

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Note added at 58 mins (2007-09-07 22:13:26 GMT)
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ili, još preciznije: cilindrični deo kućišta ventilatora