Injector nozzle spray hole with Venturi and air entertainment feature

    公开(公告)号:US11846261B2

    公开(公告)日:2023-12-19

    申请号:US17916261

    申请日:2021-02-16

    Applicant: Cummins Inc.

    CPC classification number: F02M55/008 F02M29/06 F02M61/162

    Abstract: Apparatuses and methods for fuel injection are disclosed. The apparatus includes an inner sac with one or more primary passages extending therefrom. The one or more primary passages inject fuel therethrough and comprising a first portion, a second portion, and a third portion, where the second portion is disposed between the first portion and the third portion and has a cross-sectional area smaller than that of both the first portion and the third portion. The apparatus also includes one or more secondary passages extending from an outer surface of the apparatus to fluidly couple with the second portion of the one or more primary passages. The one or more secondary passages inject air to form fuel-and-air mixture with the fuel injected from the one or more primary passages.

    Injector nozzle spray hole with an aerated counterbore

    公开(公告)号:US11959447B2

    公开(公告)日:2024-04-16

    申请号:US17914181

    申请日:2021-02-16

    CPC classification number: F02M63/00 F02M61/182

    Abstract: Apparatuses, methods, and systems for fuel injection are disclosed. The apparatus includes an inner sac with at least one spray hole disposed on an inner surface of the apparatus, the at least one spray hole leading to a fuel passage extending therefrom, at least one counterbore extending partially between an outer surface of the apparatus and the sac along the fuel passage, and at least one air entrainment hole extending from the outer surface of the apparatus toward the at least one counterbore, the at least one air entrainment hole fluidly coupled with the at least one counterbore and configured to provide air to the fuel passage.

    DEVICES, SYSTEMS, AND METHODS FOR ORIENTING FUEL INJECTOR NOZZLE SPRAY HOLES

    公开(公告)号:US20230407829A1

    公开(公告)日:2023-12-21

    申请号:US18334900

    申请日:2023-06-14

    Applicant: Cummins Inc.

    CPC classification number: F02M61/14 F02M61/18

    Abstract: Fuel injecting apparatus and methods are disclosed having components configured to provide a desired radial orientation of nozzle spray holes. Alignment rings for coupling fuel injector components include a ring body that includes a plurality of alignment guides configured to be received by complementary alignment features in the fuel injector components so as to align the fuel injector components in a desired orientation relative to each other. The plurality of alignment guides includes a primary alignment guide and at least one secondary alignment guide that is different from the primary alignment guide and each alignment guide in the plurality of alignment guides is equally spaced apart about the inner sidewall surface.

    INJECTOR NOZZLE SPRAY HOLE WITH AN AERATED COUNTERBORE

    公开(公告)号:US20230349349A1

    公开(公告)日:2023-11-02

    申请号:US17914181

    申请日:2021-02-16

    CPC classification number: F02M63/00 F02M61/182

    Abstract: Apparatuses, methods, and systems for fuel injection are disclosed. The apparatus includes an inner sac with at least one spray hole disposed on an inner surface of the apparatus, the at least one spray hole leading to a fuel passage extending therefrom, at least one counterbore extending partially between an outer surface of the apparatus and the sac along the fuel passage, and at least one air entrainment hole extending from the outer surface of the apparatus toward the at least one counterbore, the at least one air entrainment hole fluidly coupled with the at least one counterbore and configured to provide air to the fuel passage.

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