公开(公告)号：PT88897B

公开(公告)日：1993-01-29

申请号：PT8889788

申请日：1988-10-28

Applicant: DEGUSSA

Inventor： ENGLER BERNARD ,  KOBERSTEIN EDGAR ,  DOMESLE RAINER ,  VOLKER HERBERT

IPC: B01D53/94 ,  B01J23/56 ,  B01J23/58 ,  B01J23/63 ,  B01J23/89 ,  B01D53/36

Abstract: The invention is a three-way catalyst of active aluminum oxide, palladium, rhodium and cerium dioxide. If Al2O3 is present as bulk carrier, the catalyst contains 5-20% by weight CeO2 and if Al2O3 is present as a coating on a honeycombed, inert carrier, it contains 25-50% by weight CeO2.

公开(公告)号：BR9006082A

公开(公告)日：1991-09-24

申请号：BR9006082

申请日：1990-11-30

Applicant: DEGUSSA

Inventor： DOMESLE RAINER ,  ENGLER BERND ,  KOBERSTEIN EDGAR ,  PLOTZKE ULRICH ,  VOLKER HERBERT

IPC: F01N3/24 ,  B01D53/86 ,  B01J35/02 ,  F01N1/08 ,  F01N3/28 ,  F01N13/02 ,  F02B75/02 ,  F02M35/12 ,  F01N7/08

Abstract: The invention relates to an arrangement for catalytic purification of the exhaust gases of internal combustion engines, especially two-stroke engines, consisting of a jacket tube (1) which is arranged in the exhaust path and in which there is installed a perforated inner tube (3) to form a narrow annular space (5) between the jacket tube and the inner tube. The inner tube (3) is occupied by a catalyst.

公开(公告)号：ES2020157A4

公开(公告)日：1991-08-01

申请号：ES90107181

申请日：1990-04-14

Applicant: DEGUSSA

Inventor： ENGLER BERND ,  KOBERSTEIN EDGAR ,  LOX EGBERT ,  VOLKER HERBERT

IPC: B01D53/86 ,  B01D53/94 ,  B01J23/56 ,  B01J23/63 ,  B01J35/00 ,  B01J35/04 ,  B01J37/02 ,  F01N3/28

公开(公告)号：CA1250809A

公开(公告)日：1989-03-07

申请号：CA475308

申请日：1985-02-27

Applicant: DEGUSSA

Inventor： DOMESLE RAINER ,  ENGLER BERND ,  KOBERSTEIN EDGAR ,  VOLKER HERBERT

IPC: F01N3/02 ,  B01D53/94 ,  F01N3/021 ,  F01N3/022 ,  F01N3/023 ,  F01N3/035 ,  F01N3/28 ,  F01N13/18 ,  F02B1/04 ,  F02B3/06 ,  B01D53/36

Abstract: The present invention provides a device for purifying the exhaust gases of diesel engines. This device has filter elements for separating carbon black particles and these filter elements are arranged in tandem in the cross section of a casing through which the exhaust gas flows. At least one filter element, which carries a catalyst lowering the ignition temperature of the carbon black and promoting its burn-off, repeatedly alternates with at least one filter element which carries a catalyst promoting the combustion of gaseous deleterious substances.

公开(公告)号：AU565727B2

公开(公告)日：1987-09-24

申请号：AU3919285

申请日：1985-02-27

Applicant: DEGUSSA

Inventor： DOMESLE RAINER ,  ENGLER BERND ,  KOBERSTEIN EDGAR ,  VOLKER HERBERT

IPC: F01N3/02 ,  B01D53/94 ,  F01N3/021 ,  F01N3/022 ,  F01N3/023 ,  F01N3/035 ,  F01N3/28 ,  F01N13/18 ,  F02B1/04 ,  F02B3/06 ,  B01D53/36

Abstract: An apparatus for cleaning the exhaust gases of diesel engines, and especially for removal of soot particulates, utilizing series connected filter elements installed in the cross section of a housing traversed by the exhaust gas, wherein at least one filter element carrying a catalyst that lowers the ignition temperature of the soot and assists in soot burn off alternates several times with at least one filter element carrying a catalyst that assists the combustion of gaseous pollutants.

公开(公告)号：DE3269438D1

公开(公告)日：1986-04-03

申请号：DE3269438

申请日：1982-10-13

Applicant: DEGUSSA

Inventor： BOZON ALFRED ,  KOBERSTEIN EDGAR DR ,  PLETKA HANS-DIETER DR ,  VOLKER HERBERT

IPC: B01D53/34 ,  B01D53/94 ,  B01J27/16 ,  B01J27/18

公开(公告)号：AU522621B2

公开(公告)日：1982-06-17

申请号：AU3743378

申请日：1978-06-26

Applicant: DEGUSSA

Inventor： VOLKER HERBERT ,  KOBERSTEIN EDGAR ,  BOZON ALFRED ,  HENSEL JORG

IPC: B01D53/86 ,  B01D53/34 ,  B01D53/94 ,  B01J21/00 ,  B01J23/00 ,  B01J35/04 ,  B01J35/08 ,  B01J37/02 ,  C23C2/28 ,  C23C10/60 ,  B01J23/24 ,  B01J23/56 ,  B01J23/70 ,  B01J23/76 ,  B01J23/84 ,  B01J35/00 ,  B01J35/10 ,  B01J37/08 ,  F01N3/15

Abstract: There are provided shaped catalysts, particularly for the formation and/or equipping of reaction chambers with catalytically active surfaces, consisting of a structural reinforcing agent of ferrous metal, a layer of a heat resistant carrier material on the structural reinforcing agent as well as a catalytically active component on the carrier material; the body of the structural reinforcing agent consists of iron or steel and its surface is provided with a nonscaling, adhesive and anchoring enhancing aluminum/iron diffusion layer obtained by a tempering of aluminum coated iron or steel at a temperature between 600 DEG and 1200 DEG C. for at least one minute. There is also disclosed a process for making the catalysts.

公开(公告)号：IT8068147D0

公开(公告)日：1980-07-17

申请号：IT6814780

申请日：1980-07-17

Applicant: DEGUSSA ,  REP FED DI GERMANIA

Inventor： KOBERSTEIN ALFRED BOZON EDGAR ,  PLETKA HANS DIETER ,  VOLKER HERBERT

IPC: G01N27/12 ,  B01D53/86 ,  F02B77/08 ,  F02D33/00 ,  F02D35/00 ,  G01N20060101 ,  G01N25/22 ,  G01N27/26 ,  G01N27/30 ,  G01N27/403 ,  G01N27/407 ,  G01N27/409 ,  G01N27/413 ,  G01N27/417 ,  G01N

Abstract: An improved lambda sensor is disclosed for the measurement of the oxygen content in the exhaust gas of internal combustion engines in which the sensor element is provided with a gas permeable wrapping coated with a catalyst. The sensor delivers a clear well defined signal in the so-called rich exhaust gas, which makes possible a more precise adjustment of the fuel-air mixture fed to the internal combustion engine.

公开(公告)号：PT88898B

公开(公告)日：1993-01-29

申请号：PT8889888

申请日：1988-10-28

Applicant: DEGUSSA

Inventor： ENGLER BERNARD ,  KOBERSTEIN EDGAR ,  DOMESLE RAINER ,  VOLKER HERBERT

IPC: B01D53/94 ,  B01J23/56 ,  B01J23/58 ,  B01J23/63 ,  B01J23/89 ,  F02B1/04 ,  B01D53/36

Abstract: The invention is a three-way catalyst of active aluminum oxide, palladium, platinum and cerium dioxide. If Al2O3 is present as bulk carrier, the catalyst contains 5-20% by weight CeO2 and if Al2O3 is present as a coating on a honeycombed, inert carrier, it contains 25-50% by weight CeO2.

公开(公告)号：AU629433B2

公开(公告)日：1992-10-01

申请号：AU6769990

申请日：1990-12-03

Applicant: DEGUSSA

Inventor： DOMESLE RAINER ,  ENGLER BERND ,  KOBERSTEIN EDGAR ,  VOLKER HERBERT

IPC: F01N3/28 ,  B01D53/86 ,  B01D53/94 ,  B01J23/64 ,  B01J23/648 ,  B01J23/89 ,  B01J29/18 ,  B01J29/22 ,  B01J35/04 ,  B01J37/02 ,  F02B3/06 ,  F01N3/20 ,  B01D53/34 ,  B01J29/36 ,  B01J29/16 ,  B01J29/26

Abstract: An open-cell, monolithic catalyst for the purification of diesel-engine exhaust gas with a coating of finely divided inorganic oxides containing vanadium and platinum group metal as active components. The active components of the oxidic coating are added as water-soluble precursors which are then converted by means of tempering, preferably in an atmosphere of hydrogen, into the active component.