Patent ID: 11952969
Assignee: AMERICAN CNG, LLC
Field: nan (nan)
Classification: CPC nan | IPC B  F

Claim 0:
1. A supplemental fuel system for a machine having a compression-ignition engine, the supplemental fuel system comprising:
a fuel mixer including:
a nozzle configured to be positioned within a conduit of an air supply system for the compression-ignition engine, the nozzle having a body defining a first inlet, an outlet, a nozzle passage extending from the first inlet to the outlet, and a second inlet positioned between the first inlet and the outlet, the body having a first cross-sectional dimension that is configured to be less than a second cross-sectional dimension of the conduit such that an entirety of the body is smaller than and does not engage with a sidewall of the conduit so that (i) a first portion of air flowing through the conduit flows through the nozzle passage and (ii) a second portion of the air flowing through the conduit flows around the nozzle; and
a stem having a first stem end and a second stem end, the first stem end interfacing with the second inlet and extending at least partially through a thickness of the body, the stem configured to extend through a wall of the conduit such that the second stem end is positioned outside of the conduit, the stem configured to receive a supplemental fuel from a supplemental fuel source and provide the supplemental fuel through the second inlet of the nozzle to the first portion of the air flowing through the nozzle passage of the nozzle;

at least one of:
(a) further comprising (i) a supplemental fuel tank configured to store the supplemental fuel and (ii) a pressure regulator positioned downstream of the supplemental fuel tank and upstream of the fuel mixer, the pressure regulator configured to reduce a pressure of the supplemental fuel received from the supplemental fuel tank from a first pressure to a second pressure;
(b) further comprising (i) a pair of seals configured to be positioned at opposing sides of an interface where the stem extends through the wall of the conduit and (ii) a pair of fasteners configured to compress the pair of seals against the interface to provide an air-tight seal at the interface; or
(c) wherein the fuel mixer includes a valve assembly including (i) a valve body defining a valve body inlet and a valve body outlet and (ii) an adjuster, the valve body outlet interfacing with the second stem end of the stem, the adjuster positioned to facilitate selectively restricting an amount of flow of the supplemental fuel through the valve body outlet and provided to the stem and the nozzle.