Heating unit for a fuel air heater, method for manufacturing said heating unit, and fuel air heater comprising said heating unit
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United States of America Patent
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Oct 16, 2018
Grant Date -
May 26, 2016
app pub date -
Nov 19, 2015
filing date -
Nov 20, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Disclosed a heating unit for a portable fuel heater for heating ambient air. In one exemplary embodiment, the heating unit comprises: a first side wall defining an inner space, said inner space forming a combustion chamber; a second side wall arranged outside around said first side wall, said first side wall and said second side wall defining a first annular gap therebetween, said first annular gap forming a cooling chamber adapted to be crossed by a cooling air flow to subtract heat from the first side wall and transfer it to an external environment to be heated; wherein said first side wall forms a first plurality of bosses adapted to promote a thermal exchange of said first side wall with the combustion chamber and with the cooling chamber.
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