A resonator assembly includes an outer tube that extends from an inlet to an outlet. The outer tube has at least two chambers formed along a length of the outer tube. An inner tube extends from an inlet to an outlet. The inner tube includes a plurality of perforations formed about the circumference of the inner tube. The inner tube is positioned with the outer tube. The inner and outer tubes frictionally engage upon assembly sealing the at least two chambers relative to each other.

A fluid line assembly, preferably for charge air to be supplied to an internal combustion engine, comprising a fluid conduit extending along a longitudinal axis which defines an axial direction for the passage of a fluid and comprising a sound attenuation assembly received in an axial receiving portion of the fluid conduit which comprises at least two piping components, said sound attenuation assembly at least contributing to an attenuation of sound propagated in the fluid. The invention provides that the connection of the at least two piping components of the axial receiving portion with one another, and the connection of the sound attenuation assembly with the axial receiving portion of the fluid conduit is free of adhesive and melted connections.

A fluid line assembly, preferably for charge air to be supplied to an internal combustion engine, comprising a fluid conduit extending along a longitudinal axis which defines an axial direction for the passage of a fluid and comprising a sound attenuation assembly received in an axial receiving portion of the fluid conduit which comprises at least two piping components, said sound attenuation assembly at least contributing to an attenuation of sound propagated in the fluid. The invention provides that the connection of the at least two piping components of the axial receiving portion with one another, and the connection of the sound attenuation assembly with the axial receiving portion of the fluid conduit is free of adhesive and melted connections.

A system is provided for reducing instabilities associated with the operation of a pressure control valve. In an embodiment, the system may include a pressure vessel configured for containing a working fluid. A pressure control valve may be configured for pressure dependent flow of the working fluid from the pressure vessel. The pressure vessel may be coupled to the pressure control valve by a fluid conduit. An instability suppression device may be in fluid communication with the fluid conduit between the pressure vessel and the pressure control valve. The instability suppression device may provide a compliant interface with the working fluid. In an embodiment, the instability suppression device may change the acoustic dynamics associated with the fluid path between the pressure vessel and the pressure control valve to control pressure and flow oscillations at an inlet of the pressure control valve.

A pulsation damper for a condensate pump including a body having a fluid inlet, a fluid outlet, an inner wall portion and an outer wall portion, wherein the inner and outer wall portions define an inner fluid region and an outer fluid region, wherein the inner fluid region is in fluid communication with the outer fluid region, wherein a fluid flow path is formed from the fluid inlet to the fluid outlet via the inner fluid region, wherein the outer fluid region is in fluid communication with an air inlet and configured to maintain an air pocket, and wherein the air pocket is configured to dissipate pulsations within liquid entering the fluid inlet prior to being discharged from the fluid outlet.

A pulsation damper for a condensate pump including a body having a fluid inlet, a fluid outlet, an inner wall portion and an outer wall portion, wherein the inner and outer wall portions define an inner fluid region and an outer fluid region, wherein the inner fluid region is in fluid communication with the outer fluid region, wherein a fluid flow path is formed from the fluid inlet to the fluid outlet via the inner fluid region, wherein the outer fluid region is in fluid communication with an air inlet and configured to maintain an air pocket, and wherein the air pocket is configured to dissipate pulsations within liquid entering the fluid inlet prior to being discharged from the fluid outlet.

Example implementations relate to a cool fluid reservoir for managing loss of cool fluid in a coolant distribution unit (CDU). The cool fluid reservoir includes a cylinder which has an internal volume defined between an inlet and outlet, and a hollow piston that is slidably connected to the cylinder via one of the inlet or outlet to split the internal volume into a first volume portion filled with the cool fluid and a second volume portion filled with driver fluid. The first volume portion is fluidically connected to a closed fluid loop of the CDU via the hollow piston and other one of the inlet or outlet. The hollow piston is slidably driven by the driver fluid to reduce the first volume portion and inject a portion of the cool fluid from the first volume portion into the closed fluid loop based on an operating pressure of the cool fluid.

Example implementations relate to a cool fluid reservoir for managing loss of cool fluid in a coolant distribution unit (CDU). The cool fluid reservoir includes a cylinder which has an internal volume defined between an inlet and outlet, and a hollow piston that is slidably connected to the cylinder via one of the inlet or outlet to split the internal volume into a first volume portion filled with the cool fluid and a second volume portion filled with driver fluid. The first volume portion is fluidically connected to a closed fluid loop of the CDU via the hollow piston and other one of the inlet or outlet. The hollow piston is slidably driven by the driver fluid to reduce the first volume portion and inject a portion of the cool fluid from the first volume portion into the closed fluid loop based on an operating pressure of the cool fluid.

Example implementations relate to a pressure regulator assembly for a closed fluid loop of a CDU. The pressure regulator assembly has a cylinder having an internal volume, and first and second hollow pistons slidably connected to the cylinder to split the internal volume into a first volume portion having cooling fluid, a second volume portion having driver fluid, and a third volume portion having compressible matter. The first volume portion is fluidically connected to the closed fluid loop. The first hollow piston is reciprocated by the compressible matter to maintain operating pressure of the cooling fluid in the closed fluid loop. The second hollow piston is driven by the driver fluid in response to predefined pressure drop of the cooling fluid during predefined time period, to inject additional cooling fluid from the first volume portion into the closed fluid loop to restore pressure level of cooling fluid to operating pressure.

Example implementations relate to a pressure regulator assembly for a closed fluid loop of a CDU. The pressure regulator assembly has a cylinder having an internal volume, and first and second hollow pistons slidably connected to the cylinder to split the internal volume into a first volume portion having cooling fluid, a second volume portion having driver fluid, and a third volume portion having compressible matter. The first volume portion is fluidically connected to the closed fluid loop. The first hollow piston is reciprocated by the compressible matter to maintain operating pressure of the cooling fluid in the closed fluid loop. The second hollow piston is driven by the driver fluid in response to predefined pressure drop of the cooling fluid during predefined time period, to inject additional cooling fluid from the first volume portion into the closed fluid loop to restore pressure level of cooling fluid to operating pressure.