公开(公告)号：US20220099025A1

公开(公告)日：2022-03-31

申请号：US17476174

申请日：2021-09-15

Applicant: ROLLS-ROYCE plc

Inventor： Jonathan F. CARROTTE ,  Anthony John MORAN ,  Mark BREND ,  Mark CASSELL ,  Maxwell WILLIAMS

IPC: F02C7/22 ,  F02C7/04 ,  F23R3/04

Abstract: A direct injection fuel system is shown for injecting hydrogen fuel into a gas turbine combustor. The fuel injection system includes a plurality of fuel injector blocks. Each fuel injector block includes a fuel admission duct having an inlet for receiving hydrogen fuel from a fuel supply, an outlet for delivering hydrogen fuel into the combustor and a central axis extending from said inlet to said outlet. Each fuel injector block also includes an air admission duct located around the periphery of the fuel admission duct, having an inlet for receiving air from a diffuser and an outlet for delivering air into the combustor for mixing with the hydrogen fuel.

公开(公告)号：US20220099299A1

公开(公告)日：2022-03-31

申请号：US17476110

申请日：2021-09-15

Applicant: ROLLS-ROYCE plc

Inventor： Jonathan F CARROTTE ,  Anthony J MORAN ,  Mark BREND ,  Mark CASSELL ,  Maxwell WILLIAMS

IPC: F23R3/28 ,  F23D17/00 ,  F23D11/10 ,  F02C7/22

Abstract: A direct fuel injection system (206) is shown for injecting hydrogen fuel into a gas turbine combustor, the fuel injection system comprising a plurality of fuel injector blocks (1202). Each fuel injector block includes one or more air admission ducts (1603) for receiving air from a diffuser and an air outlet for delivering air into a mixing zone for combustion with fuel. Each fuel injector block also includes a fuel admission duct or aperture having a fuel inlet for receiving fuel (F) from a manifold, and a fuel outlet for delivering fuel into the mixing zone.