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US 6,619,052 B1Granted
Variable air curtain velocity control
AssigneeTyler Refrigeration Corporation
InventorRobert V. Nash, Jr.
Life of this patent
Estimating the term…
Abstract
A refrigeration system comprises a display case having an exterior and an interior. A fan blows or draws air across an evaporator coil to cool the display case. The air is blowing over a viewing area to create an air curtain. At least one sensor obtains environmental data, which is fed to a control unit. The control unit communicates with the fan and adjusts the air curtain based on the sensed environmental data.
Claims21
A refrigeration system comprising:
- a display case having an exterior and an interior;
- a coil cooling air in said display case;
- at least one fan, driving air across said coil to said display case;
- a viewing area in said display case, having an outlet on one side of said viewing area that blows air from said at least one fan to an inlet on the other side of said open viewing area that returns air to said at least one fan;
- a duct for communicating air between said fan and said outlet;
- at least one sensor for obtaining environmental data outside of said duct;
- and
- a control unit in communication with said at least one environmental sensor, for controlling said fan based on said environmental data.
5 more elements
A method of controlling air flow rates in a refrigeration case comprising:
- providing a display case with a first fan and a second fan for driving an air curtain to separate an interior of said display case from an exterior of said display case;
- sensing an environmental conditions;
- and
- controlling the first fan separately from the second fan based upon said sensed environmental conditions.
1 more element
A refrigeration system comprising:
- a display case having an exterior and an interior;
- a coil cooling air in said display case;
- a first fan and a second fan for driving air across said coil to said display case;
- a viewing area in said display case, having an outlet on one side of said viewing area that blows air from said first fan and said second fan to an inlet across said viewing area that returns air to said first fan and said second fan;
- at least one sensor for obtaining environmental data;
- a control unit in communication with said at least one environmental sensor, for controlling said fan based on said environmental data;
- and
- wherein said first fan and said second fan are controlled separately by said control unit.
5 more elements
A refrigeration system comprising:
- a display case;
- a coil cooling air in said display case;
- at least one fan driving air across said coil to said display case;
- an open viewing area in said display case, having an outlet on one side of said viewing area that blows an air curtain to an inlet on the other side of said open viewing area that returns air to said at least one fan;
- at least one sensor for obtaining environmental data;
- and
- a control unit in communication with said at least one environmental sensor, for controlling said at least one fan based on said environmental data wherein said air curtain separates an interior storage space for displaying product from an exterior space located outside of said display case, said at least one sensor located in at least one of spaces.
4 more elements
Dependencies are inferred from the claim text.