초록

A cooling control system including a valve device controlling a flow of cooling medium to an enclosure in response to a control signal; and a control apparatus generating the control signal as a function of both the temperature and the pressure within the enclosure.

대표청구항 ▼

Temperature control apparatus for controlling the flow rate of a gaseous temperature conditioning fluid through an enclosure in response to the relative heat carrying capacity of said fluid, said apparatus comprising: means for controlling said fluid flow rate in response to a control signal; means

Temperature control apparatus for controlling the flow rate of a gaseous temperature conditioning fluid through an enclosure in response to the relative heat carrying capacity of said fluid, said apparatus comprising: means for controlling said fluid flow rate in response to a control signal; means for simultaneously sensing the temperature and pressure of said temperature conditioning fluid, said sensing means including a body substantially defining a single closed variable-volume cavity therein, a predetermined quantity of elastic temperature and pressure responsive medium disposed within said cavity, said body being exposed to the interior of said enclosure in pressure-transmitting relation with said fluid therein, and said body placing said medium in heat-transfer relation with said fluid, said body comprising a bellows member, said body further including an elongate stem member having a flange portion at one end thereof, said bellows member being of elongate annular configuration having open ends, one of said ends of said bellows member sealingly coupling with said flange portion at the perimeter thereof, said bellows member and said flange portion cooperating to bound said cavity; means responsive to said sensing means for generating said control signal in response to said sensed temperature and pressure, said generating means including a housing defining a flow path therethrough and a valve element movably disposed within said housing, said valve element shifting between a first position engaging said housing to close communication through said flow path and a second position spaced from said housing to open communication through said flow path, and means for drivingly coupling said stem member with said valve element to move the latter between said first and said second positions.