US 11,703,015 B2
Three-dimensional additive manufactured product and three-dimensional additive manufacturing method
Masaki Adachi, Tokyo (JP); Akira Ogawara, Tokyo (JP); and Katsuhiko Nakamura, Tokyo (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
Appl. No. 16/634,331
Filed by MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
PCT Filed Sep. 25, 2018, PCT No. PCT/JP2018/035424
§ 371(c)(1), (2) Date Jan. 27, 2020,
PCT Pub. No. WO2019/059401, PCT Pub. Date Mar. 28, 2019.
Claims priority of application No. 2017-183607 (JP), filed on Sep. 25, 2017; and application No. 2017-217642 (JP), filed on Nov. 10, 2017.
Prior Publication US 2020/0232418 A1, Jul. 23, 2020
Int. Cl. B22F 10/38 (2021.01); B28B 1/00 (2006.01); B33Y 80/00 (2015.01); F02K 9/52 (2006.01); F02M 61/00 (2006.01); B22F 10/28 (2021.01); B33Y 10/00 (2015.01)
CPC F02K 9/52 (2013.01) [B22F 10/28 (2021.01); B22F 10/38 (2021.01); B22F 10/385 (2021.01); B28B 1/001 (2013.01); B33Y 10/00 (2014.12); B33Y 80/00 (2014.12); F02M 61/00 (2013.01); F05D 2230/31 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A fuel injector comprising:
a three-dimensional additive manufactured product, comprising:
a base portion having a base surface;
a plurality of projections formed integrally with the base portion so as to protrude from the base surface and extend in an axial direction of each of the projections, the plurality of projections forming a plurality of respective fuel injection elements for injecting fuel, wherein each projection of the plurality of projections includes a male screw portion on an outer surface of the projection, the male screw portion including a following side flank forming a first flank angle with respect to a plane that is perpendicular to the axial direction;
a porous plate for seeping the fuel to cool an injection surface of each of the fuel injection elements; and
a plurality of nuts, each nut having a female screw portion screwed onto the male thread portion of a respective one of the fuel injection elements such that the porous plate is interposed between the plurality of nuts and the plurality of fuel injection elements,
wherein the first flank angle is not less than 45 degrees.