Sectional fuel manifolds

A multipoint fuel injection system comprising:

• an injection system segment including:
• a circumferentially extending outer support defining a fuel manifold with a plurality of manifold passages extending circumferentially therethrough, and with a first connector at a first circumferential end of the circumferentially extending outer support and with a second connector at a second circumferential end of the circumferentially extending outer support opposite the first circumferential end, wherein the first and second connectors are each configured to connect each manifold passage of the plurality of manifold passages with a manifold passage of a respective outer support of a circumferentially adjacent injection system segment;
• a circumferentially extending inner support;
• a plurality of circumferentially spaced apart feed arms extending radially between the circumferentially extending inner support and the circumferentially extending outer support;
• and
• a plurality of outlet openings extending in an axial direction from each feed arm for feeding respective injection nozzles, wherein each feed arm of the plurality of circumferentially spaced apart feed arms defines a plurality of fuel passages therethrough in fluid communication with the fuel manifold and the plurality of outlet openings to supply fuel from the fuel manifold to the plurality of outlet openings, wherein the manifold passages have a chevron shaped cross-sectional flow area, and wherein each of the first and second connectors includes a transition region wherein each manifold passage of the plurality of manifold passages transitions from the chevron shaped cross-sectional flow area to a circular flow area for connection to a plurality of connector tubes.