A magnetic quick connect for a fluid delivery system includes a male coupling member and a female coupling member. The male coupling member defines a first outer fluid communication path and includes a first magnetic material. A first inner member is disposed within the first outer fluid communication path and defines a first inner communication path. The female coupling member defines a second outer fluid communication path and includes a second magnetic material. A second inner member is disposed within the second outer fluid communication path and defines a second inner communication path. The male and female coupling members are detachably held together by an attractive force between the first and second magnetic materials such that the first and second outer communication paths are held in fluid communication, and the first and second inner communication paths are held in fluid communication.

A connector for a fluid medium to be conditioned, wherein an internal pipe is provided for the fluid medium to be conditioned and at least one external pipe for a fluid conditioning medium. The internal pipe is encompassed by the external pipe and runs substantially parallel to the external pipe. At least one conducting channel is arranged between the internal pipe and the external pipe for the fluid conditioning medium or for the fluid medium to be conditioned. In one form the connector is made by injection molding.

A nipple for a coaxial coupling is disclosed. The nipple comprises a housing (40), and a nipple tube (30) arranged in the housing (40). The nipple comprises a first passage (42) between the housing (40) and the nipple tube (30), and the nipple tube (30) comprising a second passage (32) within the nipple tube (30). A relief valve (20) is slideably arranged in the nipple tube (30). The nipple comprises sealing means (24, 26) for sealing between the nipple tube (30) and the relief valve (20). The nipple tube (30) further comprises a relief passage (34), the relief passage (34) forming a fluid passage between the first passage (42) and the second passage (32). The relief passage (34) being arranged so that the sealing means (24, 26) seals the relief passage (34) when the nipple is fully coupled.

A bayonet coupling system includes a bayonet, a bayonet coupler, and a seal. The bayonet includes a bayonet tube configured to enable the flow of hydrogen fuel therethrough, and a flange coupled to the bayonet tube. The seal is configured to surround the bayonet tube and contact the flange along one side of the flange. The bayonet coupler includes a bayonet coupler tube having an inside diameter larger than an outside diameter of the bayonet tube, the bayonet coupler tube configured to receive the bayonet tube and to seal against the flange at the seal. The bayonet coupler is fixedly mounted directly or indirectly to a hydrogen storage tank such that a longitudinal axis of the bayonet coupler is inclined a predetermined angle with respect to horizontal to prevent a substantial thermal gradient from forming at the seal.

A fluidic connection system for connecting two two-phase pipes, includes two coaxial sleeves defining a central flow flowing through the inner sleeve and an annular flow flowing through the space between the inner sleeve and the outer sleeve. The connection system includes a second complementary connector that is configured to be fastened to the end of one of the two-phase pipes and a first complementary connector that is configured to be fastened to the complementary end of the other of the two-phase pipes.

A connector is provided for connecting an auxiliary device to a fluid circulating system. The connector comprises a body with inlet and outlet ports for connection to the fluid circulating system, and an auxiliary port for connection to the auxiliary device. The auxiliary port diverts fluid from the inlet to the auxiliary device and returns fluid to the outlet port. A collar surrounds the auxiliary port, secured by two spring clips. When the spring clips are both locked, movement between the connector and auxiliary device is prevented. When the first clip is released and the second clip is locked, rotation between the connector and the auxiliary device about the central axis and a predetermined amount of movement along the axis is permitted. The connector can be fitted in a variety of orientations relative to the auxiliary device and angular adjustment is possible while the two remain connected and sealed.

A line connector for a urea-water solution in an SCR catalytic converter system. The line connector has two mutually separate flow paths for two fluid media, one for a functional medium and another for a temperature control medium for controlling the temperature of the functional medium. The line connector includes a connector body having a first connection for a first line conducting a functional medium, a second connection conducting a temperature control medium, and a third connection for a double line having an inner line and a coaxial outer line. The third connection has an inner connecting element with an inner passage and an outer connecting element with an outer passage. The connector body is formed in its interior such that the first and second connections merge separately from one another into the inner and outer passages, respectively, of the third connection.

A connection assembly is disclosed for connecting a magnetic separator into a central heating system circuit, the magnetic separator including a housing, a separation chamber within the housing, and externally threaded inlet and outlet ports extending from the housing. The connection assembly comprises: a fitment adapted to be received within at least one of the ports of the separator, the fitment including a bore for carrying fluid from/to the central heating circuit to/from the separator; a threaded connector disposed around the bore for securing the fitment to the or each port, the threaded connector having a hand grip area for facilitating tightening of the connector by hand; and a removable force transfer element receivable between the fitment and the threaded connector for transferring force between the threaded connector and the fitment.

A pipe-in-pipe quick connection structure comprises: an outer pipe; an inner pipe, disposed in the outer pipe; a water input piece, sleeved around one end of the outer pipe; a water output piece, sleeved around the other end of the outer pipe; two connectors, each inserted into each end of outer pipe, and connected respectively to the water input piece and the water output piece; two inner pipe fixing rings each being used to fix each connector and the inner pipe; and two outer pipe connection rings, each sleeved around an outer wall of each connector, and connected respectively to the water input piece and the water output piece. The pipe-in-pipe quick connection structure further includes two positioning protrusions, two fix protrusion pins, two positioning and guiding slots, two positioning and fixing holes, two copper sleeves, two tight seal slots, and two tight seal rings.