Pipe device having a bonded joint

Patent metadata

Field	Value
Publication number	US-11525533-B2
Application number	US-201816643674-A
Country	US
Kind code	B2
Filing date	Aug 27, 2018
Priority date	Sep 4, 2017
Publication date	Dec 13, 2022
Grant date	Dec 13, 2022

Abstract

A pipe device includes a pipe and a connection element. The pipe has a pipe jacket that has an inner surface and an outer surface and forms a flow channel. The connection element forms a through-channel that extends from a connection piece consisting of a first material (M 1 ) and having a first opening to a second opening. The pipe jacket is positioned on the connection piece with a first pipe end consisting of a second material (M 2 ). A bonded connection is formed between the first material (M 1 ) and the second material (M 2 ) in a contact region between the inner surface of the pipe jacket and a peripheral surface of the connection piece.

First claim

The invention claimed is:

1. A pipe device comprising a pipe and a connecting member,
wherein the pipe comprises a pipe jacket with an inner surface and an outer surface and forms a flow channel,
wherein the connecting member forms a through-channel which extends from a connection piece made of a first material (M 1 ) and having a first opening to a second opening,
wherein the pipe jacket is seated with a first pipe end made of a second material (M 2 ) on the connection piece, and
wherein there is formed in a contact zone between the inner surface of the pipe jacket and a peripheral surface of the connection piece a bonded connection between the first material (M 1 ) and the second material (M 2 );
wherein the first pipe end of the pipe jacket had a corrugated inner surface and/or a corrugated outer surface before it was pushed onto the peripheral surface of the connection piece;
wherein the corrugated inner surface and/or the corrugated outer surface has shortened peak distances (A) and/or trough distances (B) at the first pipe end after it has been pushed onto the peripheral surface of the connection piece;
wherein the connection piece comprises a peripheral collar;
wherein the peripheral collar comprises one or more holes distributed over the periphery of the peripheral collar and the shortened peak distances (A) and/or trough distances (B); and wherein the bonded connection between the first material (M 1 ) and the second material (M 2 ) is produced by spin welding.

2. The pipe device as claimed in claim 1 , wherein the connection piece comprises a stop, and the first material (M 2 ) of the stop is connected to the second material (M 2 ) of the first pipe end by a bonded connection.

3. The pipe device as claimed in claim 1 , wherein there is formed between the peripheral collar and the peripheral surface of the connection piece an annular gap into which the first pipe end projects.

4. The pipe device as claimed in claim 3 , wherein the first material (M 1 ) of the peripheral collar is connected to the second material (M 2 ) of the first pipe end by a bonded connection.

5. The pipe device as claimed in claim 1 , wherein the bonded connection between the first material (M 1 ) and the second material (M 2 ) is formed by melting and curing the first material (M 1 ) and/or by melting and curing the second material (M 2 ).

6. The pipe device as claimed in claim 1 , wherein the first pipe end of the pipe jacket had a cylindrical inner surface and a cylindrical outer surface before it was pushed onto the peripheral surface of the connection piece.

7. The pipe device as claimed in claim 1 , wherein at least a portion of the peripheral surface of the connection piece widens, starting from the first opening and as the distance from the first opening increases, from a minimum diameter (D 1 ) to a maximum diameter (D 2 ).

8. The pipe device as claimed in claim 7 , wherein the minimum diameter (D 1 ) is smaller than and the maximum diameter (D 2 ) is larger than a diameter (D 3 ) of the inner surface of the pipe jacket.

9. The pipe device as claimed in claim 1 , wherein the through-channel, between the first and second opening of the connecting member, is straight or has a change of direction of at least 10 degrees and less than 180 degrees.

10. The pipe device as claimed in claim 1 , wherein the connecting member has in the region of the second opening a coupling element for an interlocking attachment of a connection object.

Assignees

• Norma Germany Gmbh

Inventors

• Kullik Sven

Classifications

• F16L47/02

  Welded joints; Adhesive joints · CPC title

• F16L33/34 Primary

  with bonding obtained by vulcanisation, gluing, melting, or the like · CPC title

• B29C66/12441

  being a single wall · CPC title

• F16L13/0209 Primary

  Male-female welded joints (F16L13/0245 and F16L13/0254 take precedence) · CPC title

• B29C66/135

  Single hemmed joints, i.e. one of the parts to be joined being hemmed in the joint area · CPC title