초록 ▼

Methods and apparatus for controlling a conditioned space to a predetermined set point temperature, utilizing a supply of cryogen. Cryogen is drawn from the supply in a flow path to provide a cooling mode via a heat exchanger disposed in the flow path. A vapor motor in the flow path, downstream from

Methods and apparatus for controlling a conditioned space to a predetermined set point temperature, utilizing a supply of cryogen. Cryogen is drawn from the supply in a flow path to provide a cooling mode via a heat exchanger disposed in the flow path. A vapor motor in the flow path, downstream from the heat exchanger, drives a fan which moves air between the conditioned space and the heat exchanger. Heat is applied to the cryogen downstream from the heat exchanger, after all cooling modes have been performed, to provide the desired fan horsepower, without interfering with a cooling cycle. A by-pass flow path selectively directs cryogen directly to the vapor motor, by-passing the heat exchanger, to provide air circulation in the conditioned space when the temperature of the conditioned space is satisfied.

대표청구항 ▼

A method for controlling the temperature of a conditioned space, comprising the steps of: providing a supply of cryogen, providing a flow path for the cryogen, wherein cryogen from the supply of cryogen flows through the cryogen flow path, using the cryogen in the cryogen flow path to provide a cool

A method for controlling the temperature of a conditioned space, comprising the steps of: providing a supply of cryogen, providing a flow path for the cryogen, wherein cryogen from the supply of cryogen flows through the cryogen flow path, using the cryogen in the cryogen flow path to provide a cooling cycle for the conditioned space, including the step of providing heat exchanger means in the cryogen flow path, using the cryogen in the cryogen flow path to move air from the conditioned space in heat exchange relation with the heat exchanger means, after the step of using the cryogen to provide the cooling cycle for the conditioned space, including the step of providing cryogen driven air mover means in the cryogen flow path downstream from the heat exchanger means, such that the cryogen driven air mover means utilizes cryogen which is not required for the cooling cycle, and controlling the flow of cryogen through the cryogen flow path to control the temperature of the conditioned space.