Firing prevention structure of fuel tank
AssigneeMitsubishi Heavy Industries, Ltd.
InventorFutoshi Yonezawa
Life of this patent
Estimating the term…
Abstract
A firing prevention structure of a fuel tank is provided with a double sleeve to pass through a hole formed in a rib, and a supporting structure to support a pipe to pass through the double sleeve. The supporting structure is attached to the rib. The supporting structure is provided with an insulating section which electrically insulates the pipe and the rib. The double sleeve is formed of electrically insulating material. Thus, an ignition source in the fuel tank is prevented.
Claims13
A firing prevention structure of a fuel tank, said firing prevention structure comprising:
- a double sleeve including a sleeve section and a flange section, wherein said sleeve section is configured to pass through a hole formed in a rib, and said double sleeve is configured to be attached to the rib at said flange section;
- and
- a supporting structure configured to support a pipe such that the pipe passes through from said double sleeve and is spaced apart from said double sleeve, wherein said supporting structure is configured to be attached to the rib,
- wherein said supporting structure comprises a bracket and a clamp section having an insulating section, wherein said clamp section is configured to electrically insulate the pipe and the rib from each other while supporting the pipe, and
- wherein said double sleeve is formed of electrically insulating material.
An aircraft having a firing prevention structure, said aircraft comprising:
- a rib having a hole;
- a double sleeve including a sleeve section and a flange section, wherein said sleeve section passes through said hole formed in said rib and said flange section is attached to said rib;
- a pipe which passes through said double sleeve;
- a supporting structure which is attached to said rib and supports said pipe such that said pipe passes through said double sleeve,
- wherein said supporting structure includes a bracket and a clamp section having an insulating section, wherein said clamp section electrically insulates said pipe and said rib from each other, and
- wherein said double sleeve is formed of electrically insulating material.
An aircraft having a firing prevention structure, said aircraft comprising:
- a rib having a hole;
- a double sleeve including a sleeve section and a flange section extending radially outward from the sleeve section, wherein said sleeve section passes through said hole formed in said rib and said flange section is attached to said rib, and said double sleeve is formed of electrically insulating material;
- a pipe which passes through said double sleeve with a gap between an outer surface of said pipe and an inner surface of said sleeve section of said double sleeve;
- a supporting structure having a clamp section clamped on said pipe and a bracket attached to said rib,
- wherein said supporting structure includes a bracket and a clamp section having an insulating section,
- wherein said supporting structure extends away from said rib such that a gap is disposed between said clamp section and said rib in an axial direction of the pipe, and
- wherein said clamp section electrically insulates said pipe and said rib from each other.
Dependencies are inferred from the claim text.