GASOLINE PARTICULATE FILTERS WITH HIGH INITIAL FILTERING EFFICIENCY AND METHODS OF MAKING SAME
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United States of America
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Issued Date -
Mar 5, 2020
app pub date -
Sep 4, 2018
filing date -
Sep 4, 2018
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
Gasoline Direct Injection (GDI) engines require gasoline particulate filters (GPFs) as a key component of the emissions control system to reduce particulate emissions. GPFs are known to have poor initial performance, with performance increasing after the filter develops a cake. This poor initial performance make it impossible to accurately assess vehicle emissions performance at the mileage requirements for vehicle certification. Compositions and methods are disclosed to improve filtration efficiency in a fresh or low mileage GPF.
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Family
International Classification(s)
- C09D:COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQ....
- F01N:GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHIN....
- F02B:INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENG....
- F02D:CONTROLLING COMBUSTION ENGINES
- B01D:SEPARATION
- C10M:LUBRICATING COMPOSITIONS
- C10L:FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYN....
- [Classification Symbol]
- [Patents Count]
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