US2015167520A1PendingUtilityA1

Inlet Module for an Emissions Cleaning Module

54
Individually held — no corporate assignee on recordPriority: Apr 24, 2012Filed: Jul 27, 2012Published: Jun 18, 2015
Est. expiryApr 24, 2032(~5.7 yrs left)· nominal 20-yr term from priority
Inventors:Naseer A. Niaz
F01N 3/20F01N 13/08F01N 3/2892F01N 3/0233F01N 3/02Y10T29/49345F01N 1/086F01N 2260/022F01N 3/021F01N 2260/20F01N 2240/20B60R 13/0876F01N 2470/04F01N 13/14F01N 13/008H05K 7/20436F01N 2610/1453B01D 53/864F01N 13/143F01N 2490/06B01D 46/0002G01M 15/102F01N 13/1805F01N 2450/22F01N 13/18F01N 13/00F01N 3/08F01N 3/28B01D 53/92F01N 9/00F01N 3/035B01F 25/4313B01F 25/4317B01D 46/66B01F 25/431971
54
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Claims

Abstract

An emissions cleaning module of a combustion engine may be provided with an inlet module for directing incoming gas flow. An inlet module includes an inlet for receiving exhaust gases from the combustion engine; an outlet for directing said exhaust gases into an inlet of the emissions cleaning module; and a flow distributor located in a flow path of the exhaust gases between the inlet and the outlet of the inlet module. The flow distributor includes a plurality of apertures through which the exhaust gases pass. This may lead to improved uniformity of gas flow within a downstream module.

Claims

exact text as granted — not AI-modified
1 . An inlet module for an emissions cleaning module of a combustion engine, the inlet module comprising:
 an inlet for receiving exhaust gases from the combustion engine;   an outlet for directing said exhaust gases into an inlet of the emissions cleaning module; and   a flow distributor located in a flow path of the exhaust gases between the inlet and the outlet of the inlet module;   wherein the flow distributor comprises a plurality of apertures through which, in use, the exhaust gases pass.   
     
     
         2 . An inlet module as claimed in  claim 1 , further comprising a sealing face configured to seal against the inlet of the emissions cleaning module. 
     
     
         3 . An inlet module as claimed in  claim 1 , further comprising a housing defining a cavity in which at least a portion of the flow distributor is located. 
     
     
         4 . An inlet module as claimed in  claim 3 , wherein an opening in the housing defines the outlet of the inlet module. 
     
     
         5 . An inlet module as claimed in  claim 3 , wherein the housing forms at least a portion of an end cap for connection to the inlet of the emissions cleaning module. 
     
     
         6 . An inlet module as claimed in  claim 5 , wherein the end cap comprises an end wall and a side wall, the side wall defining an open mouth of the end cap. 
     
     
         7 . An inlet module as claimed in  claim 1 , wherein the flow distributor forms a structural member of the end cap. 
     
     
         8 . An inlet module as claimed in  claim 1 , wherein the flow distributor comprises a conduit. 
     
     
         9 . An inlet module as claimed in  claim 8 , wherein the conduit comprises a tubular member comprising an open first end for receiving said exhaust gases from the combustion engine and a wall in which are located the plurality of apertures. 
     
     
         10 . An inlet module as claimed in  claim 8  wherein the conduit comprises an oval cross-sectional shape. 
     
     
         11 . An inlet module as claimed in  claim 1 , wherein the flow distributor comprises a plurality of zones, wherein the resistance to passage of exhaust gases varies between zones. 
     
     
         12 . An inlet module as claimed in  claim 11 , wherein the variance in resistance to passage of exhaust gases is achieved by varying at least one of: the number of apertures in each zone, the size of the apertures in each zone, the spacing of apertures in each zone. 
     
     
         13 . An inlet module as claimed in  claim 12  comprising at least a first zone having a percentage open area of 5 to 12%. 
     
     
         14 . An inlet module as claimed in  claim 12  comprising at least a second zone having a percentage open area of 10 to 25%. 
     
     
         15 . An inlet module as claimed in  claim 12  comprising at least a third zone having a percentage open area of 20 to 50%. 
     
     
         16 . An inlet module as claimed in  claim 2 , further comprising a housing defining a cavity in which at least a portion of the flow distributor is located. 
     
     
         17 . An inlet module as claimed in  claim 16 , wherein an opening in the housing defines the outlet of the inlet module. 
     
     
         18 . An inlet module as claimed in  claim 17 , wherein the housing forms at least a portion of an end cap for connection to the inlet of the emissions cleaning module. 
     
     
         19 . An inlet module as claimed in  claim 18 , wherein the end cap comprises an end wall and a side wall, the side wall defining an open mouth of the end cap. 
     
     
         20 . An inlet module as claimed in  claim 2 , wherein the flow distributor forms a structural member of the end cap.

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