Burner for a can combustor

A burner for a combustion chamber of a gas turbine with a mixing and injection device, the mixing and injection device comprising:

• a limiting wall that defines a gas-flow channel with a longitudinal axis, an inlet area, and, downstream thereof in a main-flow direction, an outlet area;
• at least two streamlined bodies, each extending in a first transverse direction from a first region of the limiting wall perpendicularly or at an inclination with respect to the main-flow direction into the gas-flow channel;
• each streamlined body having two lateral surfaces that are arranged essentially parallel to the main-flow direction with a central plane therebetween, the lateral surfaces being joined to one another at their upstream side to form a leading edge of the body and joined at their downstream side to form a trailing edge of the body;
• each streamlined body having a cross-section perpendicular to the first transverse direction that is shaped as a streamlined profile;
• wherein at least one of said streamlined bodies is provided with a mixing structure and with at least one fuel nozzle located at its trailing edge for introducing at least one fuel essentially parallel to the main-flow direction into the flow channel,
• wherein at least two of the streamlined bodies have different lengths along the first transverse direction.