Abstract: A connector assembly is provided comprising an adaptor, a first hose, a second hose and a fixing ring, wherein the adaptor comprises a first end section allocated to the first hose and a second end section allocated to the second hose, wherein a middle section of the adaptor is located between the first end section and the second end section, wherein the adaptor has a through bore for guiding a fluid. The first and second hoses surround the first and second end sections of the adaptor in a press-fit manner, wherein the second hose overlaps the first hose over at least a part of the middle section of the adaptor defining a hose overlap region. The inner overlapping surface sections of the first hose and the second hose are free of circumferential indentations in a relaxed condition of the first hose and the second hose.

Abstract: A block fitting for connecting components in a vehicular refrigeration system includes male and female blocks defining aligned bores that provide fluid communication between the assembled blocks. A primary seal member is disposed between the blocks in fluid tight relation. A separate secondary seal member spaced from the primary seal member is provided between the blocks. The seal members are pre-assembled onto one of the blocks to form a pre-assembled sub-assembly. In one form, the primary seal member is retained on the block by a polymeric guide ring.

Abstract: A block fitting for connecting components in a vehicular refrigeration system includes male and female blocks defining aligned bores that provide fluid communication between the assembled blocks. A primary seal member is disposed between the blocks in fluid tight relation. A separate secondary seal member spaced from the primary seal member is provided between the blocks. The seal members are pre-assembled onto one of the blocks to form a pre-assembled sub-assembly. In one form, the primary seal member is retained on the block by a polymeric guide ring.

Abstract: An internal heat exchanger for an air conditioning system, comprising an outer tube and a line structure arranged inside the outer tube defining a meandering serpentine first flow channel, with the second flow channel formed between the outer tube and the line structure. The first flow channel is formed by extruded components joined together to form a unitary structure inserted into the second flow channel which includes facing channel elements defining a serpentine path and two shells adhered to the channel elements defining the sides of the flow path and having fins extending perpendicular to the base disposed in the second flow channel.

Abstract: An underbody assembly for a vehicular climate control system is disclosed including fluid flow conduits formed of steel coated with polymeric material such as nylon 12. The conduits are continuous between opposite ends free of joints or flexible connection. In one form, the conduit includes branches or connectors formed of polymeric material sealed to the outer polymeric layer of the tube.

Abstract: An underbody assembly for a vehicular climate control system is disclosed including fluid flow conduits formed of steel coated with polymeric material such as nylon 12. The conduits are continuous between opposite ends free of joints or flexible connection. In one form, the conduit includes branches or connectors formed of polymeric material sealed to the outer polymeric layer of the tube.

Abstract: A tube-to-hose coupling includes an elongated hollow insert connected between an end of the tube and defining an insert receiving portion and the end of the hose defining an insert receiving portion. The insert is disposed in the insert receiving portion of the tube end and the insert receiving portion of the hose end in fluid tight sealing relation. Thermoplastic polymeric material is bonded between the insert and the hose during insertion of the insert into the bore of the hose. The tube is connected to the insert and the hose by plastic deformation. In one embodiment the polymeric material is a layer defining the internal bore of the hose. In another, the polymeric material defines an outer layer on the insert.

Abstract: A tube-to-hose coupling includes an elongated hollow insert connected between an end of the tube and defining an insert receiving portion and the end of the hose defining an insert receiving portion. The insert is disposed in the insert receiving portion of the tube end and the insert receiving portion of the hose end in fluid tight sealing relation. Thermoplastic polymeric material is bonded between the insert and the hose during insertion of the insert into the bore of the hose. The tube is connected to the insert and the hose by plastic deformation. In one embodiment the polymeric material is a layer defining the internal bore of the hose. In another, the polymeric material defines an outer layer on the insert.

Abstract: A hose coupling comprises a metal tube, an insert, a ferrule and a flexible hose. The metal tube has a radially enlarged cylindrical housing. The insert has a collar portion and a barrel portion. The collar portion is located radially inward of the cylindrical housing. The ferrule has a flange and a sleeve. The flexible hose is held within the sleeve and is supported on the barrel portion.

Abstract: An accumulator for use in a motor vehicle air conditioning system. The accumulator comprises an accumulator housing, an outlet fluid pipe assembly and an inlet fluid pipe assembly. The accumulator housing has a top wall, a bottom wall and a side wall connecting the top wall to the bottom wall. The outlet fluid pipe assembly has an inlet end. The inlet fluid pipe assembly includes a tubular first portion and a diverter/diffusing portion configured to direct refrigerant flowing through the first portion towards the sidewall and downwardly away from the top wall of the accumulator housing. The first tubular portion has an axis offset from the inlet end of the outlet fluid pipe assembly.

Abstract: A mid-line coupling comprising a first tube and a second tube. The first tube includes a male member formed of the first tube and an upset formed a given distance from the end of the first tube. The second tube includes a female body formed of the second tube. The male member is insertable into the female body until the terminal end of the female body abuts the upset of the first tube.

Abstract: This invention relates to a co-tube assembly for a heating and air conditioning system. The co-tube assembly comprises a connector an inner tube and an outer tube. The connector including a first opening, a second opening and a third opening. The inner tube extends through the first opening and the second opening of the connector. The inner tube has a first portion axially outwardly of the first opening of the connector and a second portion axially outwardly of the second opening of the connector. The outer tube is disposed over the first portion of said inner tube and inserted into said first opening of the connector.