| 摘要 |
<p>The heat exchanger has a spacer unit i.e. spacer insert (30), with thermal conductivity lower than thermal conductivity of metallic radially internal and external tubes (10, 20). The spacer unit is movably mounted in translation between the tubes, and extends over a part of the length of a radially external passage (21). A region of the external passage which is devoid from the spacer unit is intended to be connected to a tapping (40) such as filling valve body or pressure sensor mounting nozzle, by a connecting orifice (23) formed in the external tube at right angle with the region.</p> |
