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US 8,769,969 B2Granted
Defrost bypass dehumidifier
AssigneeTechnologies Holdings Corp.
InventorsTodd DeMonte, Scott E. Sloan, Steve S. Dingle, Timothy S. O'Brien, Phillip R. Steinmetz
Life of this patent
Estimating the term…
Abstract
A defrost bypass dehumidifier includes an air flow path with first, second and third segments in series from upstream to downstream and passing ambient air respectively to an evaporator coil then to a condenser coil and then discharging same. The air flow path has a bypass segment passing ambient air to the evaporator coil in parallel with the noted first air flow path segment.
Claims26
A dehumidifier comprising:
- a cabinet;
- a compressor in the cabinet for delivering hot compressed refrigerant;
- a condenser coil in the cabinet and receiving refrigerant from the compressor and condensing same;
- an expansion device in the cabinet and receiving refrigerant from the condenser coil and expanding same;
- an evaporator coil in the cabinet and receiving refrigerant from the expansion device and evaporating same, and delivering the refrigerant to the compressor;
- the refrigerant being circulated from the compressor to the condenser coil to the expansion device to the evaporator coil and back to the compressor in a refrigeration cycle;
- the cabinet having an airflow path therethrough comprising:
- a first segment passing ambient air through a heat exchanger to the evaporator coil,
- a second segment passing air from the evaporator coil to the condenser coil,
- a third segment discharging air from the condenser coil,
- a fourth segment passing ambient air to the evaporator coil;
- and
- a first bypass door selectively positionable to variably control airflow along the fourth segment.
10 more elements
In a dehumidifier comprising a cabinet;
- a compressor in the cabinet for delivering hot compressed refrigerant;
- a condenser coil in the cabinet and receiving refrigerant from the compressor and condensing same;
- an expansion device in the cabinet and receiving refrigerant from the condenser coil and expanding same;
- an evaporator coil in the cabinet and receiving refrigerant from the expansion device and evaporating same, and delivering the refrigerant to the compressor, the refrigerant being circulated from the compressor to the condenser coil to the expansion device to the evaporator coil and back to the compressor in a refrigeration cycle;
- the cabinet having an airflow path therethrough comprising a first segment passing ambient air through a heat exchanger to the evaporator coil, a second segment passing air from the evaporator coil to the condenser coil, a third segment discharging air from the condenser coil, a fourth segment passing ambient air to the evaporator coil;
- a method comprising the step of:
- selectively blocking and allowing airflow along the fourth segment to optimize operation of the dehumidifier.
4 more elements
A dehumidification system comprising:
- a dehumidifier comprising
- a cabinet;
- a compressor in the cabinet for delivering hot compressed refrigerant;
- a condenser coil in the cabinet and receiving refrigerant from the compressor and condensing same;
- an expansion device in the cabinet and receiving refrigerant from the condenser coil and expanding same;
- an evaporator coil in the cabinet and receiving refrigerant from the expansion device and evaporating same, and delivering the refrigerant to the compressor;
- the refrigerant being circulated from the compressor to the condenser coil to the expansion device to the evaporator coil and back to the compressor in a refrigeration cycle;
- the cabinet having an airflow path therethrough comprising:
- a first segment passing ambient air through a heat exchanger to the evaporator coil,
- a second segment passing air from the evaporator coil to the condenser coil,
- a third segment discharging air from the condenser coil,
- a fourth segment passing ambient air to the evaporator coil;
- and
- a bypass door selectively positionable to block airflow along the fourth segment and alternately to allow airflow along the fourth segment;
- an actuator;
- and
- a controller configured to selectively actuate the actuator and thereby selectively move the bypass door between the open and closed positions.
14 more elements
Dependencies are inferred from the claim text.