B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
183/106
B01D 46/30 (2006.01) B01D 39/00 (2006.01) B01D 39/06 (2006.01)
Patent
CA 2001811
- 15 - Filter cap for purifying the exhaust gaes of internal combustion engines, mainly for motor vehicles A B S T R A C T The invention relates to a filter cap forpuri- fying the exhaust gases of internal combustion en- gines, mainly for motor vehicles having a house connectible with the engine's exhaust pipe provided with inlet and outlet, a first perforated cover sur- rounding the flue in communication with the the in- let and a second perforated cover spaced from the first one are arranged in the house, where heat re- sistant filter pad is between the covers, and the outlet is formed on the side of the second perfo- rated cover opposite the filter pad. Main feature o the invention is that the flue is formed as expansion chamber (15) the cross section of which is many times preferably at least three times greater than the in- side flow cross section of the exhaust pipe, further- more, perforation of the side of the second perforated cover (13) opposite the filter pad (14) forms at least in part directly the outlet (17) of filter cap (1). (Fig.1.)
Bristyan Barna
G. Ronald Bell & Associates
LandOfFree
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