Ingersoll-rand Company

Officine Meccaniche Industriali S.r.l. Con Unico Socio

Paolo De Piero

Charles John Bergh

Stefano Vezil

Giovanni Battista Capellari

Maurizio Nardini

Dryer for compressed air including at least one cooling unit (), able to cool a refrigerant fluid circulating in at least one drying unit (), provided with an air inlet () and an air outlet () and also comprising at least one circuit () inside which air to be treated circulates from said air inlet () to said air outlet (). The dryer for compressed air comprises, along the circuit (), at least one cooling apparatus (), configured to cool the compressed air to positive temperatures, a few degrees above zero and near to freezing temperature, and at least one freezing apparatus (), disposed downstream of the cooling apparatus () and configured to cool the compressed air to abundantly negative values.

Cooling dryer for compressed air and corresponding method

An air compressor system is disclosed that includes a housing sized to enclose an air compressor pump as well as a dryer structured to remove moisture from air that is compressed by the compressor pump. The air compressor pump may be intermittently placed into operation, but the dryer itself is structured in one form to continuously maintain a heat exchanger in a desired temperature range in anticipation of operation of the air compressor pump. The heat exchanger of the dryer can include sufficient thermal mass such that a refrigerant pump of the dryer need not be operated continuously in anticipation of operation of the air compressor pump. While a cooling air flow can be created by operation of the air compressor pump, when the air compressor pump is not operated a cooling fan can be used provide cooling to the heat generating components of the dryer.

Air compressor

A refrigerated air dryer includes a three-path heat exchangerhaving an air path, a refrigerant path, and a fluid path. The three flow paths exchange heat within a single unit to provide a compact heat exchanger with improved thermal performance at a lower production cost.

Growing community of inventors

Tavagnacco, Italy

Paolo De Piero