DESIGN OF HEAT SHIELD OF COMBUSTION CHAMBER WITH PACK OF BELLEVILLE SPRINGS Russian patent published in 2019 - IPC F23M5/04 F23R3/60 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to turbine construction, namely, to combustion chamber heat-shielding structure. Disclosed is a design of a heat shield of a combustion chamber of a gas turbine with a bearing structure and with at least one element of a heat-shielding screen arranged on the bearing structure, a spring device and a mounting bolt. Heat shield element comprises at least one fastening hole. Spring device contains a fastening bushing fixed in the bearing structure and a stationary thrust plate directed to the heat-shielding element and a fixed locking plate directed from the element of the heat-shielding screen. Between thrust plate and locking plate there is an axially movable pressure plate and at least one spring element located between thrust plate and pressure plate. Thrust plate comprises through hole, and pressure plate comprises fastener. Fastening bolt passes through the heat shield element and the thrust plate and is engaged with the pressure plate. Thrust plate is detachably fixed in fastening sleeve.

EFFECT: invention makes it possible to facilitate process of fastening elements of heat-shielding screen and replacement of spring elements.

13 cl, 6 dwg