This invention relates to pipeline connection, and discloses specifically a fluid shunt device, comprising a container and one or more branch pipeline connection devices; wherein the branch pipeline connection device comprises a joint, a gland, a sealing piece and a lock piece; the front end of the joint is passed sequentially through the inner hole of the gland and the sealing piece, inserted into the container through the circular hole, and connected with the lock piece in the container, thus the sealing piece is clamped tightly by the joint between the container and the gland along the axial direction of the joint. The sealing for the connection between the branch pipeline connection devices and the container is reliable, and the technique for the processing of the product is simple.

This invention relates to pipeline connection, and discloses specifically a fluid shunt device, comprising a container and one or more branch pipeline connection devices; wherein the branch pipeline connection device comprises a joint, a gland, a sealing piece and a lock piece; the front end of the joint is passed sequentially through the inner hole of the gland and the sealing piece, inserted into the container through the circular hole, and connected with the lock piece in the container, thus the sealing piece is clamped tightly by the joint between the container and the gland along the axial direction of the joint. The sealing for the connection between the branch pipeline connection devices and the container is reliable, and the technique for the processing of the product is simple.

A device for connecting a water pipe to a component having a passage, in particular a fitting for changing and/or controlling a water flow, with a connecting piece having a passage channel for passing water in the direction of the component. The connecting piece having a first end to be connected to the component, a second end to be connected to the water pipe and an outwardly projecting stop in the form of a collar or flange formed between the first end and the second end. The first end of the connecting piece is provided on its outer side with an annular groove or is designed as a socket for receiving a sealing ring. A sealing ring preferably being arranged in the annular groove or on the socket, and with a fastening element for fastening the connecting piece to the component, at least one projection engaging behind the stop. The stop defining a stop surface which interacts with a seating surface of the component when the connecting piece is fastened to the component by defining a position of the connecting piece relative to the component. The device according to the invention is characterized in that the stop or the seating surface facing the stop has at least one recess or projection by means of which an annularly closed surface contact between the stop surface of the stop and the seating surface is interrupted or prevented. This makes a leak due to a damaged or missing sealing ring visible when the device is put into operation, so that the leak can be eliminated by inserting a faultless sealing ring if necessary.

A device for connecting a water pipe to a component having a passage, in particular a fitting for changing and/or controlling a water flow, with a connecting piece having a passage channel for passing water in the direction of the component. The connecting piece having a first end to be connected to the component, a second end to be connected to the water pipe and an outwardly projecting stop in the form of a collar or flange formed between the first end and the second end. The first end of the connecting piece is provided on its outer side with an annular groove or is designed as a socket for receiving a sealing ring. A sealing ring preferably being arranged in the annular groove or on the socket, and with a fastening element for fastening the connecting piece to the component, at least one projection engaging behind the stop. The stop defining a stop surface which interacts with a seating surface of the component when the connecting piece is fastened to the component by defining a position of the connecting piece relative to the component. The device according to the invention is characterized in that the stop or the seating surface facing the stop has at least one recess or projection by means of which an annularly closed surface contact between the stop surface of the stop and the seating surface is interrupted or prevented. This makes a leak due to a damaged or missing sealing ring visible when the device is put into operation, so that the leak can be eliminated by inserting a faultless sealing ring if necessary.

Systems and methods for installing and sealing a fuel pump in a fuel tank are disclosed. In one embodiment, a system for installing and sealing a fuel pump in a fuel tank may include (1) a fuel tank with an opening in a surface thereof; and (2) a fuel pump hanger assembly, the fuel pump hanger assembly comprising; (a) a plurality of assembly screws; (b) a plurality of clamping lugs configured to thread onto the plurality of assembly screws and engage an inside surface of the fuel tank; (c) a top plate further comprising; (i) a bearing surface configured to engage an external fuel tank surface; (ii) a plurality of through holes proximate the perimeter of the top plate and perpendicular to the bearing surface; (iii) a plurality of bosses, each of the plurality of bosses adjacent to each through hole, configured to guide and position the each clamping lug; and (d) a gasket positioned between the top plate and the fuel tank.

Systems and methods for installing and sealing a fuel pump in a fuel tank are disclosed. In one embodiment, a system for installing and sealing a fuel pump in a fuel tank may include (1) a fuel tank with an opening in a surface thereof; and (2) a fuel pump hanger assembly, the fuel pump hanger assembly comprising; (a) a plurality of assembly screws; (b) a plurality of clamping lugs configured to thread onto the plurality of assembly screws and engage an inside surface of the fuel tank; (c) a top plate further comprising; (i) a bearing surface configured to engage an external fuel tank surface; (ii) a plurality of through holes proximate the perimeter of the top plate and perpendicular to the bearing surface; (iii) a plurality of bosses, each of the plurality of bosses adjacent to each through hole, configured to guide and position the each clamping lug; and (d) a gasket positioned between the top plate and the fuel tank.

The present invention is directed toward a fitting assembly for establishing a fluid-tight connection with a pipe, the pipe having an aperture in a sidewall thereof, an inner surface, and an outer surface. The assembly comprises at least one adapting member, an internal sealing member disposed about the adapting member adjacent a distal end thereof, compression member disposed about the adapting member adjacent a proximal end thereof, and an external sealing member disposed about the adapting member between the internal sealing member and compression member. The distal end of the adapting member comprises teeth with outwardly extending flanged ends for insertion in the pipe aperture. Operation of the compression member causes the components to exert a compressive force on the sidewall of the pipe, forming the seal.

The present invention is directed toward a fitting assembly for establishing a fluid-tight connection with a pipe, the pipe having an aperture in a sidewall thereof, an inner surface, and an outer surface. The assembly comprises at least one adapting member, an internal sealing member disposed about the adapting member adjacent a distal end thereof, compression member disposed about the adapting member adjacent a proximal end thereof, and an external sealing member disposed about the adapting member between the internal sealing member and compression member. The distal end of the adapting member comprises teeth with outwardly extending flanged ends for insertion in the pipe aperture. Operation of the compression member causes the components to exert a compressive force on the sidewall of the pipe, forming the seal.

Systems and methods for installing and sealing a fuel pump in a fuel tank are disclosed. In one embodiment, a system for installing and sealing a fuel pump in a fuel tank may include (1) a fuel tank with an opening in a surface thereof; and (2) a fuel pump hanger assembly, the fuel pump hanger assembly comprising; (a) a plurality of assembly screws; (b) a plurality of clamping lugs configured to thread onto the plurality of assembly screws and engage an inside surface of the fuel tank; (c) a top plate further comprising; (i) a bearing surface configured to engage an external fuel tank surface; (ii) a plurality of through holes proximate the perimeter of the top plate and perpendicular to the bearing surface; (iii) a plurality of bosses, each of the plurality of bosses adjacent to each through hole, configured to guide and position the each clamping lug; and (d) a gasket positioned between the top plate and the fuel tank.

A supply pipe for vehicular gaseous fuel includes a main pipe through which gaseous fuel supplied to an internal combustion engine mounted on a vehicle flows, a sub tank separated from the main pipe, and a coupling member that couples the main pipe with the sub tank, wherein the sub tank is coupled with the main pipe via the coupling member.