Global Patent Index - EP 1020632 A1

EP 1020632 A1 2000-07-19 - Intake manifold with connecting means to an exhaust recirculation circuit

Title (en)

Intake manifold with connecting means to an exhaust recirculation circuit

Title (de)

Ansaugkrümmer mit Verbindungsmitteln zu einem Abgasrückführungskreislauf

Title (fr)

Collecteur d'admission comportant des moyens de raccordement à un circuit de recyclage des gaz d'échappement

Publication

EP 1020632 A1 (FR)

Application

EP 00400089 A

Priority

FR 9900371 A

Abstract (en)

The inlet manifold (10) consists of a moulded tubular fresh air intake duct (12) connected to a feed block (14) with outlets (16) aligned with cylinder head inlet ducts. It has an inlet (18) for recycled exhaust gases and a Venturi tube (26) fitted coaxially into the fresh air intake duct so that their forward ends (28, 30) coincide. The rear end or neck (32) of the Venturi tube is situated to the rear of the exhaust gas inlet so that it creates a suction zone (33) for the exhaust gases with the fresh air intake duct wall.

Abstract (fr)

L'invention concerne un collecteur (10) d'admission d'un moteur thermique de véhicule automobile, comportant un conduit tubulaire (12) d'admission d'air frais qui débouche dans un bloc d'alimentation (14) des cylindres dont au moins une sortie (16) d'alimentation est destinée à être montée en regard d'un conduit d'alimentation d'une culasse du moteur, et du type dans lequel un tube d'arrivée (18) de gaz d'échappement recyclés, débouche radialement dans le conduit tubulaire (12) d'admission, caractérisé en ce qu'un tube (26) de Venturi est agencé coaxialement dans le conduit tubulaire (12) d'admission, l'extrémité amont (28) du tube (26) de Venturi coïncidant sensiblement avec une extrémité amont (30) du conduit tubulaire (12) d'admission, et une extrémité aval (32) du tube (26) de Venturi ou col du Venturi, étant agencée en aval du tube d'arrivée (18) des gaz d'échappement pour délimiter entre le col (32) du Venturi et la paroi intérieure (34) du conduit tubulaire (12) d'admission d'air frais une zone d'aspiration (33) des gaz d'échappement. <IMAGE>

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

F02M 25/07; F02M 35/10

IPC 8 full level (invention and additional information)

F02M 25/07 (2006.01); F02M 35/10 (2006.01)

CPC (invention and additional information)

F02M 35/10019 (2013.01); F02M 26/19 (2016.02); F02M 35/10222 (2013.01); F02M 35/1045 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE ES GB IT

EPO simple patent family

EP 1020632 A1 20000719; EP 1020632 B1 20040623; DE 60011683 D1 20040729; DE 60011683 T2 20050630; ES 2223411 T3 20050301; FR 2788565 A1 20000721; FR 2788565 B1 20010209

INPADOC legal status


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2005-06-15 [26N] NO OPPOSITION FILED

- Effective date: 20050324

2005-03-01 [REG ES FG2A] DEFINITIVE PROTECTION

- Document: ES 2223411 T3

2004-09-29 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

- Effective date: 20040906

2004-07-29 [REF] CORRESPONDS TO:

- Document: DE 60011683 P 20040729

2004-06-23 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE ES GB IT

2004-06-23 [REG GB FG4D] EUROPEAN PATENT GRANTED

- Free text: NOT ENGLISH

2004-06-23 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: RENAULT V.I.

2003-04-16 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030226

2001-04-04 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: DE ES GB IT

2001-03-21 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010116

2000-08-09 [RIN1] INVENTOR (CORRECTION)

- Inventor name: DUDEMAINE, JEAN-PIERRE

2000-08-09 [RIN1] INVENTOR (CORRECTION)

- Inventor name: VERNHES, PIERRE-LOUIS

2000-07-19 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE ES GB IT

2000-07-19 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI