Combustion gas e.g. air, sampling arrangement for e.g. aircraft engine, has sampling opening with intermediate surface that joins inner surface of turbomachine`s casing by forming joint angle with inner surface, in reference plane

摘要

The arrangement has a sampling opening (20) that opens itself in a casing of a turbomachine. The opening has an intermediate surface (32) on a part of its circumference. The intermediate surface joins an inner surface of the casing of the turbomachine by forming a joint angle comprised in an angular range from 90 degrees to 180 degrees with the inner surface, in a reference plane passing through a sampling opening axis and an axis perpendicular to the inner surface of the casing. Independent claims are also included for the following: (1) a turbomachine casing comprising a combustion gas sampling arrangement (2) an aircraft engine comprising a combustion gas sampling arrangement.