23 Jul Aero-engine combustor with variable-cross-section step-shaped multiple-inclined-hole cooling structure used
Abstract
The invention discloses an aero-engine combustor with a variable-cross-section step-shaped multiple-inclined-hole cooling structure used. The aero-engine combustor comprises a combustor casing, a calotte, a cyclone, a connecting section, a splash plate, a flame tube inner ring wall and a flame tube outer ring wall. According to technical scheme, the flame tube inner ring wall and the flame tube outer ring wall are both straight walls, and multiple variable-cross-section step-shaped inclined holes are formed in the flame tube inner ring wall and the flame tube outer ring wall. The combustor with the cooling structure used can effectively reinforce impingement cooling in a wall surface, effective thermal insulation and cooling can be formed on the wall surface of the aero-engine combustor, meanwhile, consumption of cooling gas is reduced, tissue gas consumption is increased, and temperature rising of the combustor is quickened. The aero-engine combustor is simple in structure and easy to implement and has good engineering application value.
Year: 2014
Country: CN
Doc No: 104197373