F - Mech Eng,Light,Heat,Weapons – 24 – D
Patent
F - Mech Eng,Light,Heat,Weapons
24
D
F24D 5/02 (2006.01) F24F 12/00 (2006.01) F24H 3/06 (2006.01) F24H 8/00 (2006.01)
Patent
CA 2125091
An inducer for causing a flow of combustion air into and gases of combustion through and out of a furnace of the condensing type. The inducer is intended for use, without modification of its design or size, in a series of furnaces of the same basic design but having different heating capacities and therefore different requirements for flow through the induction flow path. The furnace design is such that a given furnace is capable of operation so as to provide a flow of air to be heated that is either up, down or horizontal with only minor field modification on installation. The inducer has two discharges, only one of which is used in a given installation. The other discharge is blocked with a plug of special configuration that can vary the output of the inducer to ensure optimum flow of combustion air into and gases of combustion through and out of the furnace. The inducer configuration is such that, in every possible orientation of the furnace installation, at least one of its two drains is at the low point of the inducer housing so that all condensate that collects in the housing can flow to a low point drain regardless of the orientation of the furnace.
Cette invention concerne un ventilateur servant à faire circuler l'air et les gaz de combustion dans une chaudière à condensation et à assurer leur évacuation. Le ventilateur est conçu pour servir, sans modification de sa construction ni de sa puissance, dans une série de chaudières de même conception différenciées par la puissance calorifique et par le sens de circulation imposé à l'air et aux gaz de combustion. L'objet de l'invention autorise un fonctionnement avec circulation montante, descendante ou horizontale, moyennant des modifications mineures de l'installation. Il comporte deux orifices de refoulement dont un seul est utilisé dans une installation donnée. Le second orifice est obturé au moyen d'un bouchon de configuration particulière qui permet de varier le débit pour assurer une circulation optimale de l'air et des gaz de combustion dans la chaudière et une évacuation tout aussi optimale. L'objet de l'invention est configuré de sorte que, peu importe l'orientation de la chaudière, au moins un de ses deux orifices de vidange se trouve au point bas de l'installation pour permettre l'évacuation des condensats.
Chou Rudy S.
Larsen Michael J.
Ramshankar Rengasamy
Rieke Larry D.
Waterman Timothy J.
Carrier Corporation
Gowling Lafleur Henderson Llp
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