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1. (WO2007011299) ARRANGEMENT AND METHOD FOR RECIRCULATION OF EXHAUST GASES IN A COMBUSTION ENGINE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/011299 International Application No.: PCT/SE2006/050225
Publication Date: 25.01.2007 International Filing Date: 28.06.2006
IPC:
F02M 25/07 (2006.01) ,F02B 47/08 (2006.01) ,F28G 1/16 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
25
Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel, or fuel-air mixture
06
adding lubricant vapours or exhaust gases
07
adding exhaust gases
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
47
Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines
04
the substances being other than water or steam only
08
the substances including exhaust gas
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28
HEAT EXCHANGE IN GENERAL
G
CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OF BOILERS
1
Non-rotary, e.g. reciprocated, appliances
16
using jets of fluid for removing debris
Applicants:
SCANIA CV AB (PUBL) [SE/SE]; Patents Uty S-15187 Södertälje, SE (AllExceptUS)
KYLSTRÖM, Kim [SE/SE]; SE (UsOnly)
Inventors:
KYLSTRÖM, Kim; SE
Agent:
WALDEBÄCK, Hans; SCANIA CV AB Patents Uty S-15187 Södertälje, SE
Priority Data:
0501701-718.07.2005SE
Title (EN) ARRANGEMENT AND METHOD FOR RECIRCULATION OF EXHAUST GASES IN A COMBUSTION ENGINE
(FR) AGENCEMENT ET PROCÉDÉ POUR LA RECIRCULATION DE GAZ D’ÉCHAPPEMENT DANS UN MOTEUR À COMBUSTION
Abstract:
(EN) The present invention relates to an arrangement and a method for recirculation of exhaust gases of a combustion engine (1). The arrangement comprises a valve means (S2) arranged in the inlet line (6), a line (13) extending from the valve means (S2) to a connection point (9a) to the return line, which connection point (9a) is situated upstream from the EGR cooler (11) with respect to the intended direction of exhaust gas flow in the return line (9), and a control unit (10) which in certain situations is adapted to placing the valve means (S2) in a cleaning position so that at least part of the compressed air in the inlet line (6) is led via the valve means (S2) and said line (13) to the return line (9), whereby the air is led in such a direction that it flows through the EGR cooler (11).
(FR) La présente invention concerne un agencement et un procédé pour la recirculation de gaz d’échappement d’un moteur à combustion (1). L’agencement comprend un moyen de soupape (S2) agencé dans le conduit d’admission (6), un conduit (13) s’étendant depuis le moyen de soupape (S2) vers un point de raccordement (9a) vers le conduit de retour, lequel point de raccordement (9a) est situé en amont du refroidisseur de gaz d’échappement (11) par rapport à la direction voulue du flux de gaz d’échappement dans le conduit de retour (9), et une unité de commande (10) qui, dans certaines situations, est adaptée pour placer le moyen de soupape (S2) dans une position de nettoyage de manière à ce qu’au moins une partie de l’air comprimé dans le conduit d’admission (6) soit entraînée par l’intermédiaire du moyen de soupape (S2) et ledit conduit (13) vers le conduit de retour (9), moyennant quoi l’air est entraîné dans une direction telle qu’il s’écoule à travers le refroidisseur de gaz d’échappement (11).
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: Swedish (SV)
Also published as:
JP2009501875