US Patent 7775051 Arrangement for a jet engine combustion chamber

The combustion chamber includes a chamber endwall perforated by at least one passage hole. An injection system is mounted so that it can slide diametrically with respect to the passage hole. A deflector is mounted on the chamber endwall. The deflector includes a fitting ring which includes first tenons. A sleeve which is coaxial to the fitting ring includes second tenons. The first and the second tenons allow the passage of the first tenons between the second tenons and then the engagement of the first tenons behind the second tenons. The injection system is slidably mounted in the sleeve. Antirotation means are provided to prevent a rotation of the injection system with respect to the sleeve.