Abstract: A fitting including a main tube including a central axis, a first end and a second end; a branch tube including a central axis, a first end and a second end, wherein the branch tube extending at the first end of the branch tube from the main tube in a first direction between the first end and the second end of the main tube to the second end of the branch tube; a first sub-tube extending from the main tube between the first end and the second end of the main tube in a second direction.

Abstract: A fuel cell stack is formed by stacking a plurality of fuel cells in a stacking direction. Each fuel cell is formed by stacking a membrane electrode assembly and a separator together. The membrane electrode assembly includes a pair of electrodes and an electrolyte membrane interposed between the electrodes, end plates provided at both ends, a fluid passage extending in the stacking direction for allowing one of reactant gases and a coolant to flow through the fluid passage, a connection pipe connecting the fluid passage and an external pipe. The connection pipe has one fluid inlet, two intermediate pipe portions branched from the one fluid inlet, and two fluid outlets. A total intermediate opening cross sectional area is larger than an inlet opening cross sectional area of the one fluid inlet, and the total intermediate opening cross sectional area is larger than a total outlet opening cross sectional area.

Abstract: A cabin air compressor outlet duct includes an outlet portion, a first inlet portion fluidly connected to the outlet portion, and a second inlet portion fluidly connected to the outlet portion and joined to the first inlet through a curvilinear surface having a bend radius between about 2.50 inches (6.35 cm) and about 2.60 inches (6.60 cm).

Abstract: A coupling component is provided for a plug-in connection for media-carrying lines, and includes a flow channel that has an inner cross-section that is enlarged in steps in order to allow the formation of a reflux zone when carrying the media, and a vent opening. The step-like enlargement is asymmetrically formed over the circumference of the inner cross-section so as to achieve an improved separation capacity.

Abstract: An adaptor for coupling pipes together that has a pair of spaced apart pipe members disposed parallel to each other, with each of pair of pipe members including an opening at a top and at a bottom for receiving an additional pipe, and a bridging member connecting the pair of pipe members and defining a passage between the pipe members. A kit including an adaptor and one or more additional pipe members also is provided.

Abstract: A tee for mounting an instrument in a pipe system, the tee comprising a body member having at least one inlet and one outlet for providing a flow path through the body, and a concave surface that forms a cup in fluid communication with the flow path for providing fluid access to the instrument, wherein (a) at least one of the inlet or the outlet is positioned offset relative to a central axis of the cup, (b) the inlet is vertically offset from the outlet, or (c) a combination of (a) and (b). Piping systems having such tees, particularly with at least one tee mounted in a rolled position such that the central axis of the cup is aligned at an angle in a range of 0 to 90 degrees from vertical, are also disclosed.

Abstract: An under-sink waste pipe system comprises first and second waste pipes telescoped together, a softly resilient seal ring that adapts a smaller pipe for coupling to a larger pipe, seals the waste-pipe juncture, and secures the waste pipes together, a locking ring for compressing the sealing ring into resilient locking and sealing engagement with the waste pipes, and a latching mechanism for securing the locking ring in place with the seal ring resiliently compressed a predetermined degree. The latching mechanism maintains the locking ring secured to the end flange structure and comprises at least first and second latching projections on the end flange structure that extend towards the locking ring, and projection guiding cam surfaces formed in the locking ring. Each projection guiding cam surface terminates in a notch-like latching recess.

Abstract: A universal conduit body system is provided having an outer housing having a first wall thickness, at least one port and an inner space. Each port has an opening in the housing and a recess in the housing surrounding the opening. Each recess includes a second wall thickness less than the first wall thickness. In use, the port mates with a connector that includes an interface having substantially the same physical shape as the recess.

Abstract: An under-sink waste pipe system comprises first and second waste pipes telescoped together, a softly resilient seal ring that both seals the waste-pipe juncture and secures the waste pipes together, a locking ring for compressing the sealing ring into resilient locking and sealing engagement with the waste pipes, and a latching mechanism for securing the locking ring in place with the seal ring resiliently compressed a predetermined degree. The latching mechanism maintains the locking ring secured to the end flange structure and comprises at least first and second latching projections on the end flange structure that extend towards the locking ring, and projection guiding cam surfaces formed in the locking ring. Each projection guiding cam surface terminates in a notch-like latching recess.

Abstract: A bend conduit having a low pressure loss coefficient is provided. The bend conduit includes a first end serving as an inlet of a fluid, a second end serving as an outlet of the fluid, and an intermediate section which is positioned between the first and second ends, which has inner and outer curved portions, and serves to guide the fluid to flow from the first end to the second end, is expanded in volume axially, outwardly oriented at the center of the bend conduit toward outer portion to be a ball-like shape, having a cut off corner with reference to the inlet flow at an inclined angle(&agr;) of 40 to 50 degree in inner curved portion, and cross sectional area ratio between the middle of intermediate section and first end section is larger than 1.2.