Exhaust treatment device with condensate gate
a treatment device and condensate gate technology, applied in the direction of mechanical equipment, machines/engines, engine components, etc., can solve the problems of affecting the characteristics of mats, reducing the exertion capacity of mats, and causing components within the dpf to heat up
Inactive Publication Date: 2007-05-24
CATERPILLAR INC
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Benefits of technology
The present invention is a fluid treatment device that includes a housing with a fluid treatment element and either an inlet channel or an outlet channel. The invention includes a gate member that is coupled to the housing and arranged within the shell member of the inlet or outlet channel. The gate member has two portions with different diameters that are arranged within and outside of the shell member, respectively. The device can direct fluid towards or away from the fluid treatment element. The technical effect of the invention is to provide a more efficient and effective fluid treatment device that can be easily assembled and used in various applications.
Problems solved by technology
The mat's exertion capacity may be decreased if the mat deteriorates or if the mat is exposed to undesirable conditions for a period of time.
During operation of an internal combustion engine attached to a DPF, hot exhaust gases from the engine cause components within the DPF to heat up.
This condensation, if allowed to pool around a mat, may adversely affect the mat's characteristics, as referenced above.
Method used
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[0016] Reference will now be made in detail to embodiments or features of the invention, examples of which are illustrated in the accompanying drawings. Generally, the same or corresponding reference numbers will be used throughout the drawings to refer to the same or corresponding parts.
[0017] Referring now to FIG. 1, a fluid treatment device 10 for treating fluid is shown. More particularly, FIG. 1 shows a diesel particular filter (DPF) 10 for treating exhaust gas from an engine. It should be appreciated that while a DPF is shown in the drawings and described herein for explanatory purposes, other types of fluid treatment devices 10 may be used in accordance with this disclosure. For example, various devices having fluid treatment elements, such as substrates, may be used.
[0018] The DPF 10 may include an element housing 14, a fluid treatment element 18 arranged within the housing 14, a mat 22 arranged between the housing 14 and the fluid treatment element 18, and inlet and outle...
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A method and apparatus for treating fluid are provided. The fluid treatment device may include a housing having a fluid treatment element therein. The device may further include at least one of (i) an inlet channel coupled to the housing and configured to direct fluid toward the fluid treatment element and (ii) an outlet channel coupled to the housing and configured to direct fluid away from the fluid treatment element. The at least one of the inlet channel and the outlet channel may include a shell member having an inner diameter and defining a fluid passage. The at least one of the inlet channel and the outlet channel may further include a gate member coupled to and arranged at least partially within the shell member and extending longitudinally from a first gate member portion having a diameter less than the inner diameter of the shell member to a second gate member portion having a diameter greater than the inner diameter of the shell member.
Description
TECHNICAL FIELD [0001] This disclosure relates generally to a method and apparatus for treating gases and, more particularly, to a method and apparatus for treating exhaust gases from an engine. BACKGROUND [0002] A diesel particulate filter (DPF) is a fluid treatment device that is commonly arranged within an exhaust gas stream of an internal combustion engine to trap particulates present in the exhaust gas. A DPF may include a cylindrical metal housing wrapped around a cylindrical ceramic filter element. A resilient mat may be compressed between the outer wall of the filter element and the inner wall of the metal housing. Because the mat is resilient and is compressed around the filter element by the housing wall, the mat may help secure the filter element within the housing while reducing vibratory effects between the housing and the filter. [0003] A mat's effectiveness in securing a filter element within a housing may partly depend on the mat's ability to exert pressure on the fi...
Claims
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IPC IPC(8): F01N3/02F01N3/04F01N7/12F01N13/12
CPCF01N3/005Y02T10/20Y02T10/12
Inventor THALER, DAVID M.
Owner CATERPILLAR INC