Refrigerant fluid distribution device intended to be accommodated in a header of a heat exchanger

A refrigerant fluid header for a heat exchanger comprising:

• a distribution chamber, wherein the distribution chamber accommodates a distribution device comprising:
• at least two conduits, including an external conduit and an internal conduit, with the internal conduit accommodated in the external conduit so as to form a volume for communication extending in the external conduit and between the internal conduit and the external conduit,
• the external conduit comprising spraying orifices each having an axis intersecting a principal lengthwise axis of the external conduit,
• the internal conduit comprising one or more communication orifice having an axis intersecting a principal lengthwise axis of the internal conduit, wherein the internal conduit comprises a machined portion extending from the external face of the internal conduit, the external face facing toward the external conduit, wherein the machined portion has a reduced thickness, and
• wherein the internal conduit of the distribution device comprises an inlet opening for admission of the refrigerant fluid and the spraying orifices are arranged in such a manner as to allow circulation of the refrigerant fluid between the distribution device and the distribution chamber.

A heat exchanger comprising:

• a refrigerant fluid header comprising:
• a distribution chamber, wherein the distribution chamber accommodates a distribution device comprising:
• at least two conduits, including an external conduit and an internal conduit, with the internal conduit accommodated in the external conduit so as to form a volume for communication extending in the external conduit and between the internal conduit and the external conduit,
• the external conduit comprising spraying orifices each having an axis intersecting a principal lengthwise axis of the external conduit,
• the internal conduit comprising one or more communication orifice having an axis intersecting a principal lengthwise axis of the internal conduit, wherein the internal conduit comprises a machined portion extending from the external face of the internal conduit, the external face facing toward the external conduit, wherein the machined portion has a reduced thickness, and
• tubes forming a bundle of tubes extending from the header characterized in that the internal conduit of the distribution device is oriented in such a manner that the machined portion is perpendicular to the bundle of tubes.