Rolls-royce Corporation

Rolls-royce Power Engineering Plc

Industrial Turbine Company (uk) Limited

Rolls-royce Canada Limited

Industrial Turbine Company Limited

Thomas Scarinci

Christopher Freeman

Ivor J Day

Kenneth James Young

Anthony John Moran

Bryn Jones

Lynn Ivor Thomas Steward

Mohammed Jalal Uddin

Robert Meier

Ivor John Day

A gas turbine engine combustion system including a mixing duct that separates into at least two branch passages for the delivery of a fuel and working fluid to distinct locations within a combustion chamber. The residence time for the fuel and working fluid within each of the two branch passages is distinct.

Two-branch mixing passage and method to control combustor pulsations

One embodiment is a gas turbine engine premix injector including a mixing duct, a plurality of air inlet slots leading to the duct, a plurality of gaseous fuel inlet apertures leading to the duct, a plurality of vanes positioned in the duct downstream from said air inlets, a plurality of liquid fuel inlet apertures leading to the duct, and a plurality of discharge windows positioned between the vanes.

Gas turbine engine premix injectors

One embodiment is a unique gas turbine engine combustion chamber including primary and secondary burning zones. Other embodiments include unique gas turbine engine apparatuses, systems, methods, and combinations.

Gas turbine engine combustion systems

An acoustic viscous damper for a compressor including a porous liner located within the discharge duct, the porous liner having a plurality of holes for passage of a purge working fluid therethrough into the discharge duct.

Acoustic viscous damper for centrifugal gas compressor

A three-stage lean burn combustion chamber () comprises a primary combustion zone (), a secondary combustion zone () and a tertiary combustion zone (). Each of the combustion zones () is supplied with premixed fuel and air by respective fuel and air mixing ducts (). The fuel and air mixing ducts () have a plurality of air injection slots () spaced apart transversely to the direction of flow through the fuel and air mixing ducts (). The air injection slots () extend in the direction of flow through the fuel and air mixing ducts () to the reduce the magnitude of the fluctuations in the fuel to air ratio of the fuel and air mixture supplied into the at least one combustion zone (). This reduces the generation of harmful vibrations in the combustion chamber ().

Combustion chamber

A three-stage lean burn combustion chamber ( ) comprises a primary combustion zone ( ), a secondary combustion zone ( ) and a tertiary combustion zone ( ). Each of the combustion zones ( ) is supplied with premixed fuel and air by respective fuel and air mixing ducts ( ). The fuel and air mixing ducts ( ) have a plurality of air injection slots ( ) spaced apart transversely to the direction of flow through the fuel and air mixing ducts ( ). The air injection slots ( ) extend in the direction of flow through the fuel and air mixing ducts ( ) to the reduce the magnitude of the fluctuations in the fuel to air ratio of the fuel and air mixture supplied into the at least one combustion zone ( ). This reduces the generation of harmful vibrations in the combustion chamber ( ).

A three-stage lean burn combustion chamber ( ) comprises a primary combustion zone ( ), a secondary combustion zone ( ) and a tertiary combustion zone ( ). Each of the combustion zones ( ) is supplied with premixed fuel and air by respective fuel and air mixing ducts ( ). The fuel and air mixing ducts ( ) have a plurality of air injections apertures ( ) spaced apart in the direction of flow through the fuel and air mixing ducts ( ). The apertures ( ) reduce the magnitude of the fluctuations in the fuel to air ratio of the fuel and air mixture supplied into the at least one combustion zone ( ). This reduces the generation of harmful vibrations in the combustion chamber ( ).

Growing community of inventors

Mont-Royal, Canada

Thomas Scarinci