An apparatus for reducing discharge pressure includes a compensator reservoir and a compensator line. The compensator line connects the compensator reservoir and a liquid line. The liquid line connects an outdoor heat exchanger and an indoor heat exchanger of a reversible HVAC system. The compensator line includes a connection to the compensator reservoir and a connection to the liquid line. A first expansion device is disposed in the liquid line and configured to only act on refrigerant flowing towards the outdoor heat exchanger. A second expansion device disposed in the liquid line and configured to only act on refrigerant flowing towards the indoor heat exchanger. The compensator is operable to receive refrigerant, driven by pressure, from the HVAC system, and further operable to allow refrigerant to flow back into the HVAC system.

An apparatus for reducing discharge pressure includes a compensator reservoir and a compensator line. The compensator line connects the compensator reservoir and a liquid line. The liquid line connects an outdoor heat exchanger and an indoor heat exchanger of a reversible HVAC system. The compensator line includes a connection to the compensator reservoir and a connection to the liquid line. A first expansion device is disposed in the liquid line and configured to only act on refrigerant flowing towards the outdoor heat exchanger. A second expansion device disposed in the liquid line and configured to only act on refrigerant flowing towards the indoor heat exchanger. The compensator is operable to receive refrigerant, driven by pressure, from the HVAC system, and further operable to allow refrigerant to flow back into the HVAC system.

A system for reducing refrigerant pressure in an HVAC system includes a receptacle that is fluidly coupled to a condenser. The receptacle is coupled to the condenser between a first pass and a second pass of refrigerant across a flow path of air. The receptacle can include a connection allowing for refrigerant flow into the receptacle during periods of high pressure.

A system for reducing refrigerant pressure in an HVAC system includes a receptacle that is fluidly coupled to a condenser. The receptacle is coupled to the condenser between a first pass and a second pass of refrigerant across a flow path of air. The receptacle can include a connection allowing for refrigerant flow into the receptacle during periods of high pressure.

An integrated pressure and temperature reducing device, comprising a secondary steam pipe and a temperature and pressure reducing mechanism arranged within the secondary steam pipe; the temperature and pressure reducing mechanism comprises an upper valve cover and a spool; the spool is provided with a plurality of pressure reducing holes, and a valve stem is inserted at one end of the spool; an end of the valve stem which is close to the spool is provided with a water supply passage, an outer peripheral surface of the valve stem is provided with a plurality of water inlet holes which are in communication with the water supply passage; the other end of the spool is inserted with a temperature reducing water pipe, and an end of the temperature reducing water pipe which is close to the valve stem is provided with a water outlet passage.

A fuel pressure accumulator for a fuel supply circuit of a turbine engine having at least one pipe is provided. The fuel pressure accumulator generally includes at least one housing adjacent to said pipe and receiving at least one deformable enclosure confining a gas and having at least one movable wall in contact with the fuel in order to dampen a fuel overpressure, where the housing is coaxial with the pipe and the accumulator has a permeable chamber delimited at least partially by the housing, pressurizing the deformable enclosure and communicating with the main fuel flow via a grid with staged walls tilted, with respect to a direction of the flow flowing along the grid, substantially in the direction of the deformable enclosure.

The present inventive concept includes a duct system and method for using same to map and locate ducts. A preferred embodiment of the duct system includes a duct, a plurality of electronic information modules and an oversheath at least partially covering the plurality of information modules and fixing the information modules to the duct. The plurality of information modules are configured to emit a positional signal to enable location of the information modules and associated duct(s) and/or mapping of the duct system.

The present inventive concept includes a duct system and method for using same to map and locate ducts. A preferred embodiment of the duct system includes a duct, a plurality of electronic information modules and an oversheath at least partially covering the plurality of information modules and fixing the information modules to the duct. The plurality of information modules are configured to emit a positional signal to enable location of the information modules and associated duct(s) and/or mapping of the duct system.

A control valve has a trim assembly to condition the flow of fluid through the control valve and, in some applications, to provide guidance for a valve plug. The trim assembly has a lattice structure formed of a plurality of triply periodic surfaces that form a plurality of passages that extend between an inner surface of the circumferential wall and an outer surface of the circumferential wall.

Embodiments of the present disclosure provide a protective device for a submarine pipeline, comprising an internal pipeline, a protective casing, and a support explosion-proof assembly; wherein the protective casing is disposed outside the internal pipeline, and a cavity body is disposed between the protective casing and the internal pipeline; the support explosion-proof assembly is disposed in the cavity body; the support explosion-proof assembly includes a plurality of support columns, the support columns are disposed in the cavity body, and one end of the support columns away from the protective casing supported on the internal pipeline, the plurality of the support columns disposed at intervals in a circumferential direction along the internal pipeline, and an explosion-proof baffle with elastic deformation capability is disposed between two adjacent support columns.