초록 ▼

A heat insulating structure having a heat-resistant tube disposed in a tubular cylindrical body and defining a passage for a high temperature gas, a heat insulating material disposed between the tube and the tubular cylindrical body and adapted to prevent the heat possessed by the gas from being tra

A heat insulating structure having a heat-resistant tube disposed in a tubular cylindrical body and defining a passage for a high temperature gas, a heat insulating material disposed between the tube and the tubular cylindrical body and adapted to prevent the heat possessed by the gas from being transmitted to the tubular cylindrical body, and a spring adapted to bias the heat insulating material toward the inner surface of the tubular cylindrical body, so as to prevent the formation of a bypass passage for the gas including the gap between the tubular cylindrical body and the heat insulating material. The heat insulating material consists of a plurality of fibrous heat insulating materials mainly consisting of bulky fibrous materials and a plurality of shaped fibrous heat insulating materials. These fibrous heat insulating materials and the shaped fibrous heat insulating materials are arranged alternatingly and independently in the axial direction. In each of the bulky fibrous heat insulating material, disposed is a spring for biasing the shaped fibrous heat insulating material in the axial direction.

대표청구항 ▼

A heat insulating structure for preventing the heat possessed by a high temperature and pressure gas in a tubular cylindrical body from leaking outside, characterized by comprising a tube made of a heat-resistant material and disposed in said tubular cylindrical body so as to define a passage for sa

A heat insulating structure for preventing the heat possessed by a high temperature and pressure gas in a tubular cylindrical body from leaking outside, characterized by comprising a tube made of a heat-resistant material and disposed in said tubular cylindrical body so as to define a passage for said gas, a heat insulating material disposed between said tube and said tubular cylindrical body, and elastic means adapted to bias said heat insulating material in both of axial and radial directions, said elastic means being formed to be continuous in the circumferential direction, thereby to prevent the gas from passing therethrough.