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US 6,024,290 AGranted
Fluid tempering system
OwnerNazir Dosani, Nizar Ladhainventors
Life of this patent
Estimating the term…
Abstract
A fluid tempering system for supplying tempered fluid to hot fluid distribution system, for example water at a constant temperature by controlling the amount of cold water from the cold water supply mixing with hot water from the water heater, to control the temperature of water in the hot water distribution system. The higher temperature water mixed with cold water reduces scalding hazard and also increases the volume of hot water, at a tampered temperature, within the hot water distribution system. The system also eliminates the slug in the tempering system.
Claims19
A fluid tempering system comprising:
- a storage tank adapted to hold fluid, said storage tank having a cold fluid inlet, a hot fluid outlet and at least one heating element therein to heat fluid held in said storage tank;
- a cold fluid path receiving cold fluid from a source and delivering cold fluid to said storage tank via said cold fluid inlet;
- a temperature sensor monitoring the temperature of cold fluid delivered to said storage tank;
- a mixing zone having a first inlet coupled to said hot fluid outlet via a hot fluid path and a second inlet coupled to said cold fluid path, said mixing zone mixing hot fluid received from said hot fluid path with cold fluid received from said cold fluid path to cool said hot fluid prior to delivery to a distribution system;
- and
- a valve responsive to said temperature sensor and controlling the amount of cold fluid delivered to said mixing zone so that the temperature of hot fluid delivered to said distribution system remains generally constant irrespective of fluctuations in the temperature of said cold fluid.
3 more elements
A fluid tempering system comprising:
- a storage tank adapted to hold fluid, said storage tank having a cold fluid inlet, a hot fluid outlet and at least one heating element therein to heat fluid held in said storage tank;
- a cold fluid path receiving cold fluid from a source and delivering cold fluid to said storage tank via said cold fluid inlet;
- a mixing zone having a first inlet coupled to said hot fluid outlet via a hot fluid path and a second inlet coupled to said cold fluid path, said mixing zone mixing hot fluid received from said hot fluid path with cold fluid received from said cold fluid path to cool said hot fluid prior to delivery to a distribution system;
- and
- a valve controlling the amount of cold fluid delivered to said mixing zone so that the temperature of hot fluid delivered to said distribution system remains generally constant, said valve being positioned adjacent said cold fluid inlet.
2 more elements
Dependencies are inferred from the claim text.