Process for cooling engine walls and wall structure for carrying out the process

US5765360A · kind A · utility

Assignee

• Daimler-Benz Aerospace AG · DE

Inventors

• Gunther Schmidt · Biberach, DE
• Michael A. Popp · LaPorte, US

Key dates

• Filing date: Feb 16, 1996
• Grant date: Jun 16, 1998
• Expiry date: Feb 16, 2016

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02K9/64
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

Cooling of engine walls with fuel, wherein the walls have a structure which has an inner wall, to which hot gas is admitted during the operation, a colder outer wall, as well as a plurality of webs which connect the walls and divide the hollow space present there into a plurality of cooling ducts. The fuel is introduced in the cold state into the wall structure, is delivered through the cooling ducts while absorbing heat via the inner wall, and is subsequently used to generate thrust. A hot fluid flow taken from the engine is admitted during the operation from the outside to the "cold" outer wall of the wall structure, through which fuel flows, and this "cold" outer wall thermally expands as a result, or its thermal contraction is reduced.