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US 10,894,237 B2Granted
Reductant nozzle with concave impinging surface
AssigneeCaterpillar Inc.
InventorsSatya Ramakrishna Manda Venkata Naga, Kevin L. Martin, Paul Arthur Zwart, Andrew M. Denis
Life of this patent
Estimating the term…
Abstract
A nozzle including an interior cavity, a structure disposed within the interior cavity, a first channel fluidly connected to the interior cavity, one or more second channels fluidly connected to the interior cavity, and one or more outlets coupled to the interior cavity. The structure includes a bottom impinging surface that is at least partially concave, one or more legs that support the bottom impinging surface, and a top surface located opposite the bottom impinging surface.
Claims17
A nozzle, comprising:
- a first end including a first inlet and a second inlet;
- a second end including a nozzle outlet, an exterior surface of the nozzle defining a plurality of distinct outlet apertures at the nozzle outlet;
- a first channel fluidly connected to the first inlet and extending substantially parallel to a longitudinal axis of the nozzle;
- a second channel fluidly connected to the second inlet and extending substantially parallel to the first channel;
- an interior cavity including:
- a first outlet, the first inlet being fluidly coupled to the interior cavity via the first channel and the first outlet;
- a second outlet, the second inlet being fluidly coupled to the interior cavity via the second channel and the second outlet;
- and
- an impinging surface spaced apart from and located opposite the second outlet along a longitudinal direction, the longitudinal direction being parallel to the longitudinal axis, the impinging surface including a concave surface that faces the second outlet along the longitudinal direction;
- and
- a third channel disposed between the impinging surface and the nozzle outlet along the longitudinal direction, the interior cavity being fluidly coupled with the plurality of distinct outlet apertures via the third channel.
8 more elements
A nozzle, comprising:
- an interior cavity;
- a structure disposed within the interior cavity, the structure including:
- a bottom impinging surface, wherein at least a portion of the bottom impinging surface is concave;
- one or more legs supporting the bottom impinging surface;
- and
- a top surface located opposite the bottom impinging surface, wherein the top surface is conically-shaped;
- a first channel fluidly connected to the interior cavity;
- one or more second channels fluidly connected to the interior cavity, each channel of the one or more second channels extending substantially parallel to the first channel;
- and
- one or more outlets coupled to the interior cavity,
- wherein the first channel comprises at least one channel,
- the one or more second channels comprises at least four channels, and
- the one or more outlets comprises at least eight distinct outlets.
10 more elements
An exhaust system, comprising:
- an exhaust pipe configured to receive exhaust from an engine;
- and a nozzle located within the exhaust pipe, the nozzle comprising:
- an interior cavity having a bottom end, a top end, and a sidewall extending from the bottom end to the top end;
- a channel having a first outlet disposed at the bottom end of the interior cavity;
- a passageway having a second outlet disposed at the sidewall of the interior cavity, the passageway extending substantially parallel to the channel;
- a structure disposed within the interior cavity, the structure including:
- a first side facing the bottom end of the interior cavity and having a substantially concave-shaped surface, wherein the substantially concave-shaped surface directly faces the first outlet of the channel;
- and
- a leg extending from the bottom end of the interior cavity and coupled to the first side, the leg spacing the first side from the bottom end of the interior cavity;
- a spray outlet disposed at the top end of the interior cavity, an exterior surface of the nozzle defining a plurality of distinct outlet apertures at the spray outlet;
- and
- a supply line fluidly connected to the nozzle, wherein the supply line is configured to supply reductant to the channel and air to the passageway.
9 more elements
Dependencies are inferred from the claim text.