Global Patent Index - EP 0970165 A1

EP 0970165 A1 2000-01-12 - METHOD FOR REDUCING EMISSIONS FROM A GASOLINE ENGINE EQUIPPED WITH A THREE-WAY CATALYTIC CONVERTER

Title (en)

METHOD FOR REDUCING EMISSIONS FROM A GASOLINE ENGINE EQUIPPED WITH A THREE-WAY CATALYTIC CONVERTER

Title (de)

VERFAHREN ZUR VERMINDERUNG VON EMISSIONEN EINES MIT EINEM DREIWEGEKATALYSATOR AUSGERÜSTETEN BENZINMOTORS

Title (fr)

PROCEDE PERMETTANT DE REDUIRE LES EMISSIONS D'UN MOTEUR A ESSENCE EQUIPE D'UN CONVERTISSEUR CATALYTIQUE A TROIS VOIES

Publication

EP 0970165 A1 (EN)

Application

EP 98908457 A

Priority

  • US 9801728 W
  • US 79229797 A

Abstract (en)

[origin: WO9833871A1] Gasoline engines equipped with three-way catalysts emit less NOx, hydrocarbons and carbon monoxide when operated on fuels containing a bimetallic catalyst comprising rhodium acetylacetonate and a fuel-soluble platinum compound such as diphenyl cyclooctadiene platinum(II) or platinum acetyl acetonate. The total metals in the additive will be dosed at a concentration of less than about 2 ppm (milligrams of metal to liter of gasoline) based on the amount of gasoline burned in the engine. Preferred dosages will be from about 0.15 to about 1.5 ppm, with a ratio of platinum to rhodium of from about 3:1 to about 15:1.

IPC 1-7 (main, further and additional classification)

C10L 1/30

IPC 8 full level (invention and additional information)

C10L 1/14 (2006.01); C10L 1/18 (2006.01); C10L 10/02 (2006.01); C10L 10/06 (2006.01); C10L 1/16 (2006.01); C10L 1/30 (2006.01)

CPC (invention and additional information)

C10L 10/02 (2013.01); C10L 1/14 (2013.01); C10L 1/1814 (2013.01); C10L 10/06 (2013.01); C10L 1/1608 (2013.01); C10L 1/1616 (2013.01); C10L 1/1824 (2013.01); C10L 1/305 (2013.01)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9833871 A1 19980806; AT 283333 T 20041215; DE 69827778 D1 20041230; DE 69827778 T2 20051110; EP 0970165 A1 20000112; EP 0970165 A4 20010124; EP 0970165 B1 20041124; ES 2232936 T3 20050601; TW 499475 B 20020821; US 2001001354 A1 20010524

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2004-11-17 [RTI1] TITLE (CORRECTION)

- Free text: METHOD FOR REDUCING EMISSIONS FROM A GASOLINE ENGINE EQUIPPED WITH A THREE-WAY CATALYTIC CONVERTER

2004-05-12 [RTI1] TITLE (CORRECTION)

- Free text: METHOD FOR REDUCING EMISSIONS FROM A GASOLINE ENGINE EQUIPED WITH A THREE-WAY CATALYTIC CONVERTOR

2004-05-06 [RTI1] TITLE (CORRECTION)

- Free text: METHOD FOR REDUCING EMISSIONS FROM A GASOLINE ENGINE EQUIPED WITH A THREE-WAY CATALYTIC CONVERTOR

2004-01-07 [17Q] FIRST EXAMINATION REPORT

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- Free text: 7C 10L 1/30 A, 7C 10L 1/18 B, 7C 10L 1/14 B, 7C 10L 10/02 B, 7C 10L 10/06 B

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