HOLLOW-WALL HEAT SHIELD FOR FUEL INJECTOR COMPONENT

• Main Author: Hanson, Russell B
• Format: Patent
• Language: English
• Published: 19.07.2018
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; COMBUSTION APPARATUS; COMBUSTION ENGINES; COMBUSTION PROCESSES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; GAS-TURBINE PLANTS; GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS; INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; TRANSPORTING; WEAPONS

A fuel injector component includes a monolithic body devoid of joints from manufacturing, an elongate void, and a plurality of bores. The monolithic body has a first surface and a second surface. The elongate void is enclosed by the monolithic body and is integrally formed between portions of the monolithic body defining the first surface and the second surface. The plurality of bores extends into the second surface to intersect the elongate void. A process for making a fuel injector component comprises building a monolithic body having an elongate void and a plurality of ports connected to the elongate void using an additive manufacturing process that utilizes a powdered building material, and removing residual powdered building material from the elongate void through the plurality of ports.