Abstract: A heat exchanger includes a header and a plurality of tubes. The header is configured to contain refrigerant and provide an inlet for the heat exchanger. The plurality of tubes extends away from and is fluidicly coupled to the header. The header includes an upper shell and a lower shell configured to form the header when attached together. The upper shell and the lower shell cooperate to define a manifold portion fluidicly coupled to the inlet, a lanced portion spaced apart from the manifold portion and fluidicly coupled to the plurality of tubes, and a distribution portion configured fluidicly couple the manifold portion to the lanced portion.

Abstract: A heat exchanger assembly having an inlet header, an outlet header spaced apart from and substantially parallel the inlet header, and a plurality of refrigerant tubes each extending between and in hydraulic communication with the inlet header and outlet header. Contained within the outlet header is a refrigerant collector conduit adapted to provide a predetermined pressure drop (?P) and having a cross-section area Acollector. The refrigerant collector includes a plurality of orifices having a cumulative orifice area (nAorifice) that are substantially equally spaced along the refrigerant collector. The collector conduit is in fluid communication with the outlet header for transferring the vapor phase of a two refrigerant. The collector conduit cross sectional area (Acollector) and cumulative orifice area (nAorifice) is described by the following equation: ? ? ? p = m dot 2 ? ? [ 467.892 ? ( 1 A collector 2 - 1 n 2 ? A orifice 2 ) + 51.

Abstract: A heat exchanger assembly includes a first manifold having a first manifold body with an outer wall defining a cavity and an inner partition wall integrally formed with the outer wall to define a distribution chamber disposed within the cavity. A second manifold defines a hollow cavity and is in spaced and substantially parallel relationship with the first manifold. A plurality of flow tubes extend between and fluidly connect the cavities of the manifolds. The inner partition wall has a plurality of apertures fluidly connecting the distribution chamber with the cavity. A method of manufacturing the first manifold includes the steps of extruding the manifold body, forming a plurality of openings in the outer wall, forming a plurality of apertures in the inner partition wall, inserting a separator in the manifold body, and mounting the end cap to one end of the first manifold body.

Abstract: A heat exchanger assembly has a first manifold, a second manifold in spaced and substantially parallel relationship with the first manifold and a plurality of flow tubes fluidly connecting the manifolds for passing refrigerant between the manifolds. The first manifold includes a header and tank which are joined by their longitudinal edges to form a cavity. The tank is extruded and has an outer wall and an inner partition wall with a plurality of apertures which define a distribution chamber within the cavity. The distribution chamber is fluidly connected to the cavity. A method of manufacturing a manifold generally includes the steps of extruding the tank, cutting the tank to a predetermined length, forming a plurality of apertures in the inner partition wall, forming a plurality of openings in the header, joining the tank and the header, and joining the end cap to the tank and header.

Abstract: A computer cabinet includes a top panel and at least one side panel connected to the top panel and a fan assembly. The fan assembly includes a fan and a fan housing. The fan housing has a top half and bottom half. The top half and the bottom half form an internal cavity. An air inlet is located within one of the top and bottom halves. The fan is located within the internal cavity and directs air from the air inlet towards an open end of the housing.

Abstract: A computer cabinet includes a top panel and at least one side panel connected to the top panel and a fan assembly. The fan assembly includes a fan and a fan housing. The fan housing has a top half and bottom half. The top half and the bottom half form an internal cavity. An air inlet is located within one of the top and bottom halves. The fan is located within the internal cavity and directs air from the air inlet towards an open end of the housing.