Fluidic assembly for an air conditioning circuit with a heat exchanger

Abstract

A fluidic assembly for an air conditioning circuit comprises a first feeding line for a high temperature fluid, a second feeding line comprising a barrier material for a refrigerating fluid in the gaseous state, and a casing defining a first inlet and a first outlet connected to the second line; a chamber having an elongated shape and a minimum upper cross dimension as compared to the first inlet and second outlet; a second inlet and a second outlet connected to the first line; the fluidic assembly comprising a radiating body adapted to be crossed by the high temperature fluid and fluid-tightly connected to the casing between the second inlet and the second outlet within the chamber for defining an integrated silencer-exchanger assembly.

1 . A fluidic assembly for an air conditioning circuit, comprising a first feeding line for a high temperature fluid, a second feeding line for a refrigerating fluid in the gaseous state, and a casing defining a first inlet and a first outlet connected to said second line; a chamber having an elongated shape and a minimum upper cross dimension as compared to said first inlet and second outlet; a second inlet and a second outlet connected to said first line; said fluidic assembly comprising a radiating body adapted to be crossed by the high temperature fluid and fluid-tightly connected to said casing between said second inlet and second outlet within said chamber for defining an integrated silencer-exchanger assembly. 
     
     
         2 . A fluidic assembly according to  claim 1 , characterized in that said casing comprises a pair of shells. 
     
     
         3 . A fluidic assembly according to  claim 1 , characterized in that said casing has a side wall having substantially rectilinear generatrices and a cross section having a larger dimension and a smaller dimension different from said larger dimension. 
     
     
         4 . A fluidic assembly according to  claim 1 , characterized in that said radiating body comprises a tube having a longer length than said casing. 
     
     
         5 . A fluidic assembly according to  claim 1 , characterized in that said radiating body comprises radial ridges for increasing the heat exchange surface. 
     
     
         6 . A fluidic assembly according to  claim 1 , characterized in that it comprises at least one partition adapted to intercept the flow of said refrigerating fluid within said chamber. 
     
     
         7 . A fluidic assembly according to  claim 1 , characterized in that said second line comprises an inlet pipe and an outlet pipe connected to said casing and in that said inlet and outlet pipes are misaligned. 
     
     
         8 . A fluidic assembly according to  claim 1 , characterized in that said first and second lines are connected to said casing by means of two flanges. 
     
     
         9 . A fluidic assembly according to  claim 8 , characterized in that at least one of said flanges has a side opening such as to be mounted after said first and second lines have been fluidically connected to said casing. 
     
     
         10 . A fluidic assembly according to  claim 9 , characterized in that it comprises a front seal between said casing and an upsetting part of said second line, and in that at least one of said flanges defines a recess for accommodating at least said upsetting part so that said flange is mounted substantially flat. 
     
     
         11 . A fluidic assembly according to  claim 1 , characterized in that at least said radiating body is glued to said casing. 
     
     
         12 . A fluidic assembly according to  claim 1 , characterized in that at least said radiating body is laser-welded to said casing. 
     
     
         13 . An air conditioning system for a motor vehicle comprising a compressor, an evaporator and a condenser, characterized in that it comprises a fluidic assembly according to  claim 1  for connecting said compressor, condenser and compressor to one another. 
     
     
         14 . A motor vehicle comprising an engine compartment and a fire-wall delimiting said engine compartment, characterized in that it comprises an air conditioning system according to  claim 12 , wherein said exchanger-silencer assembly is applied to said fire-wall.