Abstract: A multilayer hose is provided for use in vehicle air conditioning systems in particular for the transport of low environmental impact coolants such as fluoropropenes. According to the present invention the hose comprises a first inner layer comprising PPA or semiaromatic polyamide. The hose furthermore comprises at least one second layer comprising an elastomeric material.

Abstract: A piping for an SCR circuit of a motor vehicle comprising a pipe to feed a solution comprising urea, an electrical resistor surrounding the pipe to heat the solution containing urea, and a layer of a material having a flexural stiffness higher than that of the pipe, in which the layer is tubular and houses at least partially the electrical resistor and the pipe.

Abstract: A tube (1) for an air conditioning system comprises a rigid pipe (2), a flexible pipe (3) comprising at least one layer of polymeric material; a connection (4) to fasten the metal pipe (2) to the flexible pipe (3) and comprising a bell element (13) fastened to said rigid pipe (2) and plastically deformable to close a first end portion (5) of the flexible pipe (3) over a second end portion (6) of the rigid pipe (2); and a seal (14) comprising a tubular body (20) interposed radially between the first end portion (6) and the second end portion (5) and a flange (21) interposed axially between the first end portion (6) and the bell element (13).

Abstract: A multilayer tube for an automatic transmission, the multilayer tube comprising at least one layer of elastomeric material resistant to oils, in particular to DEXRON VI. Advantageously, the layer of elastomeric material is a mixture of CSM (polyethylene chlorosulphonate) and EVM in which the percentage ratio between EVM and CSM is comprised between 4:1 and 1:1.

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.

Abstract: A pipe/silencer device assembly comprising a connection element, which has a through hole, having an axis, and a branching off hole, which is fluidically connected to the through hole and wherein the assembly comprises: first connection co-operating with a first duct; a second duct, fluidically connected to the connection element; and a blind silencer duct, fluidically connected to the branching off hole.

Abstract: A duct for a hydraulic steering system comprises a pipe for feeding a fluid and a device for absorption of the fluid pressure pulses is provided. In particular, the device defines a chamber which is connected in parallel to the pipe by means of a first and a second connection, a mobile inertial element defining a first and a second compartment inside the chamber, and resilient means acting on the inertial element in order to maintain the inertial element in an intermediate position, such as to define a first and a second compartment inside the chamber and communicating by means of a leakage defined by a passage.

Abstract: Described herein is a pressure-pulsation-damping fluid supply conduit comprising: a flexible covering pipe, which has end portions opposite to one another; tubular elements having respective first axes and being connected to the end portions; respective couplings, connected to the tubular elements in such a way that they are free to rotate; respective flexible pipes, which have respective fixed portions connected to the respective couplings and respective free portions located radially facing one another.

Abstract: Damping conduit assembly (4) for a hydraulic system comprising a user (3) and a pipe (2) connected to the user (3) by means of a first connecting element (6) and presenting an end portion (20) having a first axis (B) and a bush (15) carried by the end portion (20) and having a second axis (A) transverse to the first axis (B), the bush (15) also housing the first connecting element (6) for fluidly connecting the user (3) to the pipe (2), the conduit assembly (4) being suited to be fluidly connected to the pipe (2) and comprising a flexible cylindrical wall (27), a closing element (29) axially delimiting an internal volume (30) of the cylindrical wall (27) filled with fluid. The conduit assembly (4) also comprises a connecting unit (5) comprising the first connecting element (6) and a second connecting element (22) carried by the cylindrical wall (27) and coupled to the first connecting element (6).

Abstract: Damping conduit assembly (4) for a hydraulic system comprising a user (3) and a pipe (2) connected to the user (3) by means of a first connecting element (6) and presenting an end portion (20) having a first axis (B) and a bush (15) carried by the end portion (20) and having a second axis (A) transverse to the first axis (B), the bush (15) also housing the first connecting element (6) for fluidly connecting the user (3) to the pipe (2), the conduit assembly (4) being suited to be fluidly connected to the pipe (2) and comprising a flexible cylindrical wall (27), a closing element (29) axially delimiting an internal volume (30) of the cylindrical wall (27) filled with fluid. The conduit assembly (4) also comprises a connecting unit (5) comprising the first connecting element (6) and a second connecting element (22) carried by the cylindrical wall (27) and coupled to the first connecting element (6).

Abstract: Described herein is a pipe/silencer device assembly comprising a connection element, which has a through hole, having an axis, and a branching off hole, which is fluidically connected to the through hole wherein the assembly comprises: first connection means adapted for co-operating with a first duct; a second duct, fluidically connected to the connection element; and a blind silencer duct, fluidically connected to the branching off hole.

Abstract: Described herein is a pressure-pulsation-damping fluid supply conduit comprising: a flexible covering pipe, which has end portions opposite to one another; tubular elements having respective first axes and being connected to the end portions; respective couplings, connected to the tubular elements in such a way that they are free to rotate; respective flexible pipes, which have respective fixed portions connected to the respective couplings and respective free portions located radially facing one another.

Abstract: A hydraulic duct for feeding fluid at high pressure comprising a metal tube, a flexible tube of elastic material and a connector is provided with at least one main projection and a plurality of auxiliary projections, and the main projection is bounded on the side of the flexible tube by a conical surface. The flexible tube is fitted on the connector and is enclosed by an aluminium bell of a profile which can be coupled with the projections of the connector and is adapted to prevent the flexible tube from slipping off and to ensure fluid-tightness. The bell has an end rim which abuts against the conical portion of the main projection which faces towards the flexible tube.

Abstract: A hydraulic duct for feeding fluid at high pressure comprising a metal tube, a flexible tube of elastic material and a connector is provided with at least one main projection and a plurality of auxiliary projections, and the main projection is bounded on the side of the flexible tube by a conical surface. The flexible tube is fitted on the connector and is enclosed by an aluminium bell of a profile which can be coupled with the projections of the connector and is adapted to prevent the flexible tube from slipping off and to ensure fluid-tightness. The bell has an end rim which abuts against the conical portion of the main projection which faces towards the flexible tube.

Abstract: A conduit for supplying a fluid and damping pressure pulsations in the fluid, the conduit having an outer pipe and an inner pipe housed inside the outer pipe, and the outer pipe having a small-diameter intermediate portion cooperating in fluidtight manner with the inner pipe; the inner pipe therefore defines with the outer pipe a first annular chamber and a second annular chamber located on opposite sides of the intermediate portion, and has a number of intermediate holes connecting the inner chamber of the inner pipe to the first and second annular chamber.

Abstract: A conduit for supplying a fluid and damping pressure pulsations in the fluid, the conduit having an outer pipe and an inner pipe housed inside the outer pipe, and the outer pipe having a small-diameter intermediate portion cooperating in fluidtight manner with the inner pipe; the inner pipe therefore defines with the outer pipe a first annular chamber and a second annular chamber located on opposite sides of the intermediate portion, and has a number of intermediate holes connecting the inner chamber of the inner pipe to the first and second annular chamber.