Engine wall structure and a method of producing an engine wall structure
AssigneeVolvo Aero Corporation
InventorArne Boman
Life of this patent
Estimating the term…
Abstract
An engine wall structure includes an inner wall to which hot gas is admitted during engine operation, an outer wall, which is colder than the inner wall during engine operation, and at least two webs that connect the inner wall with the outer wall and delimit a cooling duct between the walls. The webs are mainly formed by a first material and the inner wall is mainly formed by a second material of other composition and other heat conductivity than the first material.
Claims14
A method of producing an engine wall structure that comprises an inner wall, to which hot gas is admitted during engine operation, an outer wall, which is colder than the inner wall during engine operation, and at least two webs that connect the inner wall with the outer wall and delimit a cooling duct between the walls, comprising forming the webs by masking the inner wall and depositing a first material onto unmasked portions of the inner wall, the inner wall mainly comprising a second material of other composition and other heat conductivity than the first material.
A method of producing an engine wall structure that comprises an inner wall, to which hot gas is admitted during engine operation, an outer wall, which is colder than the inner wall during engine operation, and at least two webs that connect the inner wall with the outer wall and delimit a cooling duct between the walls, comprising forming the webs by deposition of a first material onto the inner wall, the inner wall mainly comprising a second material of other composition and other heat conductivity than the first material, wherein the inner wall comprises a copper or a copper-based alloy, and the webs comprise steel.
A method of producing an engine wall structure that comprises an inner wall, to which hot gas is admitted during engine operation, an outer wall, which is colder than the inner wall during engine operation, and at least two webs that connect the inner wall with the outer wall and delimit a cooling duct between the walls, comprising forming the webs by deposition of a first material onto the inner wall, the inner wall mainly comprising a second material of other composition and other heat conductivity than the first material, wherein the material of the webs has higher heat conductivity than the material of the inner wall, wherein the inner wall comprises steel and the webs comprise aluminum or an aluminum-based alloy.
Dependencies are inferred from the claim text.