Abstract: An injector plate for a rocket engine assembly, for connection to the rocket engine assembly having a body with a fuel manifold that contains a fuel entry and a fuel passage ring encircling an axis, that fuels recirculation passages extending between portions of the fuel passage ring and fuel element passages, each fuel element passage extending to fuel outlets. The injector plate also has an oxidizer with an internal primary oxygen passage, secondary oxygen passages branching from the primary oxygen passage at an internal portion of the body to oxidizer outlets and tertiary oxygen passages branching from the secondary oxygen passages at an internal portion of the body to the oxidizer outlets. The fuel outlets and the oxidizer outlets are arranged to form outer and inner element grouping patterns.

Abstract: An injector plate for a rocket engine assembly, for connection to the rocket engine assembly having a body with a fuel manifold that contains a fuel entry and a fuel passage ring encircling an axis, that fuels recirculation passages extending between portions of the fuel passage ring and fuel element passages, each fuel element passage extending to fuel outlets. The injector plate also has an oxidizer with an internal primary oxygen passage, secondary oxygen passages branching from the primary oxygen passage at an internal portion of the body to oxidizer outlets and tertiary oxygen passages branching from the secondary oxygen passages at an internal portion of the body to the oxidizer outlets. The fuel outlets and the oxidizer outlets are arranged to form outer and inner element grouping patterns.