A plate-type heat exchanger, in which plates are stacked on top of each other as a stack and connected to each other in a sealed manner, fluid channels being formed between adjacent plates in each case, the stack of plates being divided into a first stack region and a second stack region, the first stack region forming an evaporator having first fluid channels and second fluid channels, and the second stack region forming an internal heat exchanger having third fluid channels and fourth fluid channels.

A heat exchanger including a sealed housing and a body positioned inside the housing, the body including a stack of least one first assembly of first and second plates pressed against each other, between which flows a first fluid, and at least one second assembly of third and fourth plates pressed against each other, between which flows a second fluid, the first and second assemblies being arranged so that they transfer heat between the first and second fluids. This configuration limits the risk of leaks and mixing of the two fluids.

A pressure relief arrangement in refrigerant circuits with one high-pressure side and one low-pressure side, which is characterized in that the high-pressure side is fluidically connected with the low-pressure side of the refrigerant circuit via an overpressure relief device, wherein the overpressure relief device causes pressure reduction of the overpressure in the case of overpressure on the high-pressure side and fluid flows from the high-pressure side to the low-pressure side of the refrigerant circuit.

A heat exchanger includes a duct, a core portion, and a caulking plate. The duct has an inlet and an outlet. The core portion is housed in the duct in a state where cooling plates and cooling fins are stacked in a stacking direction. The caulking plate has a frame shape corresponding to an opening shape of the inlet and the outlet and brazed to the inlet and the outlet. The caulking plate is interposed between the duct and a tank to fix the tank. A first joint between the duct and the core portion and a second joint between the duct and the caulking plate are distanced from each other in the stacking direction by a predetermined distance. The duct has a rib between the first joint and the second joint or at the second joint.

A gas storage device includes a casing, a lift platform, a lift mechanism, a driving mechanism, an exhaust valve and a gas joint. The lift platform is movably disposed in the casing, wherein a gas storage space is between a bottom of the casing and the lift platform. The lift mechanism is disposed in the casing and connected to the lift platform. The driving mechanism is connected to the lift mechanism. The driving mechanism drives the lift mechanism to drive the lift platform to move. The exhaust valve is connected to the lift platform and communicates with the gas storage space. The gas joint is connected to the bottom of the casing and communicates with the gas storage space.

A cooling apparatus for a component formed by super plastic forming including a gas source configured to supply a gas to an interior space of the component via a gas inlet, a gas outlet configured to allow the gas to exit the interior space, and a gas column connected to the gas outlet and configured to compensate for changes in an external pressure acting on the component.

In at least some implementations, a plate for a heat exchanger defines at least in part a flow channel for a working fluid of the heat exchanger, the plate defines an aperture adjacent the flow channel, and the aperture has a sensor assembly disposed therein. The sensor assembly includes a body mounted to the aperture and at least in one of a temperature sensor and a pressure sensor secured within the body, and the body forming in part the flow channel for the working fluid.

A heat exchanger assembly comprises a heat exchanger for heat exchange between at least a first heat exchange fluid and a second heat exchange fluid. The heat exchanger comprises at least one heat transfer element delimiting a first fluid path from a second fluid path, and a through connection for the first heat exchange fluid arranged at a first side portion of an outer structure of the heat exchanger. The assembly comprises a pressure pulse damping apparatus comprising an elastic element, and a first conduit leading to the elastic element. The first conduit comprises a first opening connected to the through connection of the heat exchanger such that the first conduit is fluidly connected with the first fluid path. The elastic element fluidly communicates with the first fluid path only via the first opening. There is further disclosed use of a pressure pulse damping apparatus comprising an elastic element.

A relief valve 1 includes: a housing 6 connected to a supply-side connection pipe 4a and a discharge-side connection pipe 5a and has an inflow port 61c and an outflow port 62c; a valve seat (an opening rim 61a) provided in the housing 6; a main valve body 7 which is placed in the housing 6, and capable of cutting off communication between the inflow port 61c and the outflow port 62c in the housing 6 by being seated on the valve seat (the opening rim 61a); and a biasing member 8 that biases the main valve body 7 toward the valve seat (the opening rim 61a), wherein the inflow port 61c is provided in the housing 6 such that the inflow port 61c is decentered with respect to a central axis line of the main valve body 7 in a direction in which a supply pipe 4 extends.

Disclosed is an apparatus for use with shell and tube heat exchangers to protect the low-pressure side of the heat exchanger from overpressure in which one or more tubes fractures, allowing high-pressure gas to penetrate the low-pressure side. The apparatus includes a conduit for attachment to the low-pressure side of the heat exchanger and including a rupture disk therein that will rupture when subjected to a predetermined burst pressure. The conduit also includes a surge chamber located therein downstream of the rupture disk assembly, the surge chamber having dimensions resulting in a predetermined volume. A pressure relief valve is located at the downstream end of the conduit capable of opening in response to a pressure increase caused by fluids flowing through the conduit and closing in response to a pressure decrease. Also disclosed are systems and processes using the apparatus, and a method for retrofitting the exchangers with the apparatus.