Laundry Dryer with a Heat Pump System

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20140290091A1
SERIAL NO

14354193

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Laundry dryer, with a heat pump system, said heat pump system comprises a refrigerant circuit (10) for a refrigerant and an drying air stream circuit (12) for the drying air stream, wherein the refrigerant circuit (10) includes a compressor (14) with variable output, a first heat exchanger (16), variable expansion means (18) and a second heat exchanger (20) connected in series and forming a closed loop, the drying air stream circuit (12) includes the first heat exchanger (16), the second heat exchanger (20), a laundry treatment chamber (22) and at least one air stream fan (24), the refrigerant circuit (10) and the air stream circuit (12) are thermally coupled by the first heat exchanger (16) and the second heat exchanger (20), the first heat exchanger (16) is provided for heating up the air stream and cooling down the refrigerant, and the second heat exchanger (20) is provided for cooling down the air stream and heating up the refrigerant, wherein a control unit (38) is provided to adjust the variable expansion means (18), wherein the control unit (38) is adapted to adjust the variable expansion means (18) in response to at least a compressor quantity representative of the operation of the compressor (14) and/or in response to the drying cycle selected by the user, wherein said quantity is at least one of the following rotational speed of the compressor (14), supply current/voltage frequency of the compressor motor, absorbed power or current of the compressor (14).

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First Claim

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Patent Owner(s)

Patent OwnerAddress
ELECTROLUX HOME PRODUCTS CORPORATION N VRAKETSTRAAT 40 BRUSSELS B-1130

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bison, Alberto Pordenone, IT 30 152
Cavarretta, Francesco Pordenone, IT 20 74

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