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

Claim 18:
19. A supplemental fuel system for a machine having a compression-ignition engine, the supplemental fuel system comprising:
a nozzle configured to be positioned within a conduit of an air supply system for the compression-ignition engine, the nozzle having:
a passage with an inlet, a first transition point, a second transition point, an outlet, an inlet taper extending from the inlet to the first transition point, a mixing chamber positioned between the first transition point and the second transition point, and an outlet taper extending from the second transition point to the outlet; and
a second inlet positioned along the mixing chamber closer to the second transition point than the first transition point;
wherein the nozzle has an outer diameter of about 3 inches, the mixing chamber has a chamber diameter of about 2 inches, the nozzle has a nozzle length of about 4 inches, the inlet taper has an inlet length of about 0.5 inches, the mixing chamber has a chamber length of about 2 inches, and the outlet taper has an outlet length of about 1.5 inches;
wherein the outer diameter is configured to be less than a cross-sectional dimension of the conduit such that an entirety of the nozzle 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 passage and (ii) a second portion of the air flowing through the conduit flows around the nozzle;

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 nozzle, the stem configured to extend through a wall of the conduit such that the second stem end is positioned outside of the conduit;
a valve body defining a valve body inlet configured to receive a supplemental fuel from a supplemental fuel source and a valve body outlet interfacing with the second stem end of the stem; and
an adjuster positioned to facilitate selectively restricting an amount of the supplemental fuel through the valve body outlet to the stem and the nozzle;
wherein the nozzle is configured to generate a vacuum signal at the second inlet as the first portion of the air flows through the passage to draw a flow of the supplemental fuel into the mixing chamber.