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Nozzle assembly

A component, nozzle technology, applied in the direction of engine components, exhaust gas treatment, machine/engine, etc., which can solve problems such as clogging, hindering device performance, reducing device efficiency, etc.

Inactive Publication Date: 2008-12-31
CATERPILLAR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the system of the '524 patent can increase the temperature of the particulate trap, the regeneration device of the '524 patent is not configured to actively cool a portion of the regeneration device before, during and / or after regenerating the particulate trap
As a result, over time, parts of the unit can clog due to fuel remaining in the unit when it was at high temperature after regeneration
Clogging of the unit reduces the efficiency of the unit and hampers the performance of the unit

Method used

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Examples

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Embodiment Construction

[0013] As shown in FIG. 1 , the nozzle assembly 2 includes a housing 4 and a sleeve 8 disposed within a passage 24 of the housing 4 . The front end 57 of the sleeve 8 abuts against the housing 4 , while the rear end 59 of the sleeve 8 abuts against the stop 30 of the nozzle assembly 2 . The stopper 30 and the sleeve 8 are fixed on the housing 4 by a set of screws 32 .

[0014] The housing 4 may be, for example, a manifold or any other similar structure capable of supporting components of the nozzle assembly and helping to form the chamber 14 for the vortex to be sprayed by the nozzle assembly 12 . As shown in FIG. 1 , sleeve 8 , stop 30 and screw 32 may be at least partially supported by and / or connected to housing 4 . The ignition device 98 may also be supported by and / or connected to the housing 4 . Such ignition means 98 may include, for example, a spark plug or other conventional ignition means. Housing 4 may be made of any material known in the art that is capable of w...

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Abstract

The invention relates to a nozzle assembly (2) includes a housing (4) defining a first fluid passage (18) in fluid communication with a second fluid passage (16), and a sleeve (8) disposed within the housing (4) and fluidly connected to the first and second fluid passages (18, 16). The housing (4) defines a radial fluid passage (53) proximate a front end (57) of the sleeve (8). The nozzle assembly (2) also includes at least one orifice (12) in selective communication with a regeneration device (82).

Description

technical field [0001] The present invention relates to a nozzle assembly and, in particular, to a nozzle assembly configured to be cooled by a fluid. Background technique [0002] Engines, including diesel engines, gasoline engines, natural gas engines, and others known in the art, can emit complex mixtures of air pollutants. Air pollutants can consist of gaseous and solid matter, such as particulate matter. Particulate matter may include dust and unburned carbon particles known as soot. [0003] Due to increasing environmental concerns, some engine manufacturers have developed systems for treating exhaust gases after they leave the engine. Some of these systems use exhaust treatment devices - such as particulate traps - to remove particulate matter from the exhaust stream. Particulate traps may include filter material designed to capture particulate matter. However, over a period of use, the filter material becomes partially saturated with particulate matter, affecting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/025F01N3/36
CPCF01N3/0253F01N3/36F01N2260/024F01N2610/03F01N2610/11
Inventor M·P·哈门C·Y·梁
Owner CATERPILLAR INC
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