US 2021/0079907 A1 · SHAFT-CYLINDER ASSEMBLY FOR HIGH TEMPERATURE OPERATION

Abstract

The present invention provides a shaft-cylinder assembly for high-temperature operation comprising a dynamic sealing member having a helical coiled seal ring structure configured to be in contact with the shaft for providing dynamic sealing function; and a cylindrical cooling jacket positioned between the dynamic sealing member and the cylinder, and configured to circumferentially surround the dynamic sealing member and be circumferentially surrounded by the cylinder; wherein the cooling jacket includes one or more cooling channels, each of the one or more cooling channels is configured to circulate a cooling fluid for moving heat away from the dynamic sealing member.

Claims7

Dependent claims

A shaft-cylinder assembly, comprising:

a cylinder;
a shaft configured for moving in and along the cylinder;
a dynamic sealing member configured to be in contact with the shaft for providing dynamic sealing function;
and
a cylindrical cooling jacket positioned between the dynamic sealing member and the cylinder, and configured to circumferentially surround the dynamic sealing member and be circumferentially surrounded by the cylinder;
wherein the cooling jacket includes one or more cooling channels, each of the one or more cooling channels is configured to circulate a cooling fluid for moving heat away from the dynamic sealing member.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/107,977Filed 1 Dec 2020

Priority

9 Mar 2019

Published

18 Mar 2021

Term ends

Not estimatedThe source records don’t support an estimate.

Classification15 codes

F16J 15/162
Between relatively-moving surfaces: special parts or details relating to lubrication or cooling of the sealing itself
F16J 15/002
Sealings: comprising at least two sealings in succession
F16J 15/324
With elastic sealings, e.g. O-rings: arrangements for lubrication or cooling of the sealing itself
F16J 15/3248
With elastic sealings, e.g. O-rings: provided with casings or supports

Shaft-cylinder assembly for high temperature operation

Life of this patent

Shaft-cylinder assembly for high temperature operation

Life of this patent

Abstract

Claims7