Method and apparatus for temperature control in a refrigeration device
AssigneeGSLE Development Corporation
InventorChuan Weng
Life of this patent
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Abstract
A temperature control device including a temperature sensor which senses a temperature at a specified location within the refrigeration apparatus. The temperature control device has first flow valve that is operable to selectively increase or decrease the flow of refrigerant in response to the temperature sensed by the sensor. In addition, the device has a second flow valve that is operable to selectively increase or decrease hot gas flow in response to the temperature sensed by the sensor. The temperature control device also contains a controller which controls the above mentioned valves in response to the temperature sensed by the temperature sensor.
Claims14
A temperature control device comprising:
- a temperature sensor operable to sense a temperature at a certain location of said device;
- a first flow valve operable to selectively increase or decrease refrigerant flow in a first flow path;
- a second flow valve operable to selectively increase or decrease hot gas flow in a second flow path;
- a primary controller that controls the first and second flow valves in response to the temperature sensed by the temperature sensor;
- and
- a secondary controller operable to control the first and second flow valves in response to the temperature sensed by the temperature sensor.
A system for controlling temperature, comprising:
- means for sensing a temperature at a certain location of an incubation system;
- means for increasing or decreasing refrigerant flow in a first flow path in response to the temperature sensed by the sensing means;
- means for increasing or decreasing hot gas flow in a second flow path in response to the temperature sensed by the sensing means;
- primary means for controlling the valves in response to the temperature sensed by the temperature sensing means;
- and
- secondary means for controlling the valves in response to the temperature sensed by the temperature sensing means.
Dependencies are inferred from the claim text.