Pipe joint
First Claim
1. A pipe joint for connecting a first fluid pipeline and a second fluid pipeline hermetically, in such a manner that the relative angle therebetween can vary, comprising:
- a first fluid pipeline having a connecting section;
a second fluid pipeline having a connecting section;
a ring-shaped sealing ring produced by pressure forming a fine metal wire with a fire-resistant material, comprising an inner circumference sealing surface having a conical tapered shape expanding in diameter towards an open end of the first fluid pipeline, which is provided in the connecting section of the first fluid pipeline;
an outer circumference sealing seat having a partially convex surface which is provided in the connecting section of the second fluid pipeline, in a position confronting said ring-shaped sealing ring when said first and second fluid pipelines are connected; and
pressure connecting means for causing the inner circumference sealing surface of the ring-shaped sealing ring and said outer circumference sealing seat to contact each other at an area of contact, said contact being under pressure, said area of contact changing in a slidable fashion during varying of said relative angle, said contacting pressure being provided in an elastic manner in a region extending across the connecting sections of both said first and second fluid pipelines.
1 Assignment
0 Petitions
Accused Products
Abstract
A pipe joint is provided whereby fluid pipelines, such as exhaust pipes, or the like, can be connected hermetically, in such a manner that the relative angle therebetween can vary, while ensuring satisfactory manufacturing precision of the sealing surface of a ring-shaped sealing ring. In a pipe joint 1 for connecting a first fluid pipeline 2 and a second fluid pipeline 3 hermetically, in such a manner that the relative angle therebetween can vary, a ring-shaped sealing ring 4 comprising an inner circumference sealing surface 4b having a tapered shape expanding in diameter towards the open end thereof is provided in the connecting section of the first fluid pipeline 2, an outer circumference sealing seat 3a having a partially convex surface is provided in the connecting section of the second fluid pipeline 3, in a position confronting said ring-shaped sealing ring 4, and pressure connecting means 5 for causing the inner circumference sealing surface 4b of the ring-shaped sealing ring 4 and said outer circumference sealing seat 3a to contact under pressure, in a slidable fashion, is provided in a region extending across both said fluid pipelines.
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Citations
7 Claims
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1. A pipe joint for connecting a first fluid pipeline and a second fluid pipeline hermetically, in such a manner that the relative angle therebetween can vary, comprising:
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a first fluid pipeline having a connecting section;
a second fluid pipeline having a connecting section;
a ring-shaped sealing ring produced by pressure forming a fine metal wire with a fire-resistant material, comprising an inner circumference sealing surface having a conical tapered shape expanding in diameter towards an open end of the first fluid pipeline, which is provided in the connecting section of the first fluid pipeline;
an outer circumference sealing seat having a partially convex surface which is provided in the connecting section of the second fluid pipeline, in a position confronting said ring-shaped sealing ring when said first and second fluid pipelines are connected; and
pressure connecting means for causing the inner circumference sealing surface of the ring-shaped sealing ring and said outer circumference sealing seat to contact each other at an area of contact, said contact being under pressure, said area of contact changing in a slidable fashion during varying of said relative angle, said contacting pressure being provided in an elastic manner in a region extending across the connecting sections of both said first and second fluid pipelines. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification