Variable capacity type viscous heater

Details Variable capacity type viscous heater Variable capacity type viscous heater

F - Mech Eng,Light,Heat,Weapons

24

J

F24J 3/00 (2006.01) B60H 1/08 (2006.01)

Patent

CA 2204649

24 A variable capacity type viscous heater is provided which can carry out the capacity control reliably, and which can inhibit the endurable heat-generating efficiency of a viscous fluid from deteriorating even after a long period of service. For instance, its rear housing 6 is provided with a control chamber 9 which is communicated with a central region of a heat-generating chamber 7, and which has an internal volume capable of expanding and contracting. When a rotor 14 is kept rotated, a silicone oil held, in the heat-generating chamber 7, expands theinternal volume of the control chamber 9 by the Weissenberg effect in the capacity reduction. As a result, the heating is relieved, because the silicone oil, held in the heat-generating chamber 7, is collected into the control chamber 9.

Appareil de chauffage à fluide visqueux du type à puissance variable qui peut effectuer une régulation de puissance de façon fiable et qui peut maintenir l efficacité du fluide visqueux à produire de la chaleur, même après une longue période de service. Par exemple, son boîtier arrière 6 comporte une chambre de régulation 9 qui communique avec le centre d'une chambre productrice de chaleur 7 et qui a un volume intérieur libre capable de se dilater et de se contracter. Lorsqu'un rotor 14 tourne, une huile de silicone, gardée dans la chambre productrice de chaleur 7, dilate le volume intérieur libre de la chambre de régulation 9 par l'effet Weissenberg de la diminution de puissance. Le chauffage est ainsi diminué, parce que l'huile de silicone, gardée dans la chambre productrice de chaleur 7, est recueillie dans la chambre de régulation 9.

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