Gasoline particulate filters with high initial filtering efficiency and methods of making same

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United States of America Patent

PATENT NO 10774708
SERIAL NO

16121236

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Abstract

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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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Patent Owner(s)

Patent OwnerAddress
AFTON CHEMICAL CORPORATION500 SPRING STREET RICHMOND VA 23219

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Remias, Joseph E Richmond, US 12 18
Roos, Joseph W Mechanicsville, US 50 225
Shao, Huifang Midlothian, US 7 4

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