Method of forming a branching to a pipe, and junction in a pipe
OwnerGöran Sundholminventor
Life of this patent
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Abstract
The present invention relates to a junction in a pipe for connecting the pipe (1) into fluid communication with a fluid-carrying component (18), the junction comprising an opening (2) provided in the wall of the pipe and a connecting part (3) comprising a tube-clamp-like joint (3) comprising a first part (4) and a second part, which can be tightened against the first part by means of tightening means (6) and which comprises a narower first portion (10) and a broader second portion (11), whereby the narrower portion is positioned in the opening (2) and the broader portion outside the pipe (1). The invention also relates to a method of forming to the wall of a pipe a branching for receiving a fluid-carrying component.
Claims14
In a method of forming to the wall of a pipe (1, 1′) a branching for receiving a fluid-carrying component (18, 18′), the method comprising
- processing into the pipe wall a cylindrical hole (2, 2′) having at least one wall defining a smaller diameter than a diameter of the pipe,
- arranging around the pipe (1, 1′) a tube-clamp-like joint (3, 3′) comprising a first part (4, 4′) and a second part (5, 5a′ 5b′) for tightening against the pipe wall and first part by, tightening means (6, 6′), the second part comprising a conduit (25) with a bushing (8, 9, 8′,9′), the bushing having a narrower first portion (10, 10′) for insertion into the hole (2, 2′) and a broader second portion (11, 11′),
- inserting the narrower portion (10, 10′) into the hole (2, 2′), and
- tightening the second part (5, 5a′, 5b′) is tightened against the pipe wall and the component (18, 18′) fastened in fluid communication with the conduit (25),
- the improvement wherein the second part (5, 5a′, 5b′) is tightened so that the narrower portion of the bushing (10, 10′) plastically deforms the wall of the hole (2, 2′) and the wall of the hole encircles the narrower portion fluid tight.
A junction in a pipe for connecting the pipe (1, 1′) into fluid communication with a fluid-carrying component (18, 18′), the junction comprising a hole (2, 2′) provided in the wall of the pipe and a connecting part (3, 3′) between the pipe and the component, the connecting part comprising a tube-clamp-like joint (3, 3′) having a first part (4, 4′) and a second part (5a′, 5b′), which can be tightened against the first part by means of tightening means (6, 6′) and which comprises a bushing part (8, 9, 8′, 9′) and a narrower first portion (10, 10′) and a broader second portion (11, 11′), whereby the narrower portion is positioned in the opening (2, 2′) and is surrounded by the walls of the hole and the broader portion is positioned outside the pipe (1, 1′), the narrower portion (10, 10′) comprises a first projected surface (27, 27′) which is smaller than a second projected surface (28, 28′) in the broader portion (11, 11′) of the second part, the projected surfaces being directed away from one another, the first projected surface being arranged to exert a first force directed at the narrower portion during fluid pressure in the pipe (1, 1′), the first force tending to push away the narrower portion from the hole (2, 2′) and the second projected surface being arranged to exert a force directed at the broader portion during the same fluid pressure, this force tending to push the narrower portion towards the pipe in such a manner that a force acts so as to wedge the narrower portion into the hole, characterized in that the walls of the hole (2, 2′) are plastically deformed, and encircle the narrower portion (10, 10′) fluidum-tight.
Dependencies are inferred from the claim text.