An ice machine includes a plurality of cooling tubes with each cooling tube having an inner tube and an outer tube extending around the inner tube to define an annular cavity between the inner tube and the outer tube. When refrigerant flows through the annular cavity between the inner tube and the outer tube, water in the inner tube freezes. The ice machine may also include a shell defining an internal cavity through which the plurality of cooling tubes extend; a water source operably connected to a water pump to flow water through the inner tube; a refrigerant source operably connected to a refrigerant pump to flow refrigerant through the annular cavity; and a heater operably connected to the internal cavity of the shell to flow a heated fluid through the internal cavity and across the plurality of cooling tubes.

A tube sheet for a thermal transfer device can include a body having a plurality of apertures that traverse therethrough, where the plurality of apertures are configured to receive a plurality of tubes of the thermal transfer device. The tube sheet can also include an outer perimeter defining the body, where the outer perimeter has at least one first recess feature disposed therein. The at least one first recess feature can have a first shape and a first size, where the first shape is any shape aside from a semi-circle.

An exhaust gas recirculation (EGR) cooler includes: a housing having an exhaust gas inlet and an exhaust gas outlet, a coolant inlet and a coolant outlet, and a plurality of grooves protruding inward from upper and lower surfaces of the housing; a plurality of tubes spaced apart from each other so that exhaust gas flows in the housing; and a plurality of supporters supporting the plurality of tubes in the housing, wherein the plurality of supporters are disposed between an upper surface of the housing and a tube adjacent the upper surface of the housing among the plurality of tubes, between an lower surface of the housing and a tube adjacent the lower surface of the housing among the plurality of tubes, and between the plurality of tubes so that the plurality of supporters are disposed in a space in which the coolant flows inside the housing.

The present invention relates to an outdoor heat exchanger, and more particularly, to an outdoor heat exchanger including a variable baffle whose opening and closing are controlled according to a switching of cooling/heating modes of a vehicle heat pump system to easily change a refrigerant pass and reduce the number of refrigerant passes at the time of heating than at the time of cooling.

A syngas loop boiler includes a casing that surrounds a tube bundle, wherein the tube bundle includes a plurality of tubes. One end of each of the tubes is joined to a tube-sheet provided with corresponding tube-sheet inlet holes for inletting the syngas in the boiler, wherein each tube-sheet inlet hole is internally provided with at least a protective sleeve welded at both ends to corresponding surfaces of the tube-sheet inlet hole. Each tube-sheet inlet hole is provided with a first respective weld overlay placed at the inlet mouth of the tube-sheet inlet hole, so that a first end of each protective sleeve is welded to the first weld overlay. Each tube-sheet inlet hole is internally provided with at least a bore groove that contains a respective in-bore second weld overlay, so that the second end of the protective sleeve is welded to the in-bore second weld overlay. Each protective sleeve is thus welded at both ends to respective weld overlays, with the possibility of removal and re-installation without performing any post weld heat treatment.

A heat exchanger including: a first manifold including an inlet for a heat exchange fluid, at least one first channel and at least one second channel; a second manifold spaced apart from the first manifold; and a plurality of heat exchange tubes fluidically connecting the first manifold and the second manifold. The plurality of heat exchange tubes is divided into a first section of tubes and a second section of tubes. The at least one first channel is directly connected to the inlet and a first set of tubes amongst the first section of tubes, while the at least one second channel is directly connected to the inlet and a second set of tubes amongst the first section of tubes. The first manifold is adapted to prevent the fluid from travelling between the at least one first channel and the at least one second channel within the first manifold.

An example memory module cooler may include a first liquid manifold, a second liquid manifold, and a cooling tube connected to the first and second liquid manifolds such that. The cooling tube may be connected to the manifolds such that (1) liquid coolant can flow from the first liquid manifold through the cooling tube to the second liquid manifold, and (2) the cooling tube can be rotated relative to the first and second liquid manifolds around a longitudinal axis of the cooling tube. The cooling tube may have an oblong cross-sectional profile.

Embodiments of the present disclosure are directed to a climate management system that includes a heat exchanger having a first set of microchannel coils fluidly coupled to a first circuit of the climate management system and a second set of microchannel coils fluidly coupled to a second circuit of the climate management system, where the first circuit and the second circuit are fluidly separate from one another, and where the first set of microchannel coils and the second set of microchannel coils are disposed in an alternating arrangement along a length of the heat exchanger such that the first set of microchannel coils and the second set of microchannel coils are interlaced in the heat exchanger.

For a process for producing a motor vehicle interior trim material including or consisting at least essentially of a needlefelt which includes a fibre blend including 25-35 wt % of polyamide (PA) fibres and 65-75 wt % of polyester (PES) fibres, preferably without other, bonding fibres, and is consolidated mechanically by needling and via adhesive bonding, it shall be achieved to provide a needlefelt material, in particular a motor vehicle interior trim material, which has a visually appealing surface finish even after thermoforming in the temperature range between 150 C. and 250 C.

It is intended to suppress occurrence of a crack in a fixed portion of a tube with respect to a tank. A plurality of tubes (4A to 4D) are fixed to a sidewall (9) in a state in which they penetrate through the sidewall (9) via respective ones of a plurality of through-holes (9b) formed in the sidewall (9) in such a manner as to be arrayed in a line along a longitudinal direction. A heat exchanger (1) comprises a protective member (5) fixed to the sidewall (9) to protect a nearest tube (4A) nearest to an end wall (10) among the plurality of tubes (4A to 4D), wherein the protective member (5) has a barrier portion (13) interposed between the end wall (10) and an outlet-side end portion (4b) of the nearest tube (4A) disposed inside the sidewall (9).