Global Patent Index - EP 3224466 A1

EP 3224466 A1 2017-10-04 - VALVE MECHANISM FOR EXHAUST GAS RECIRCULATION ON AN INTERNAL COMBUSTION ENGINE

Title (en)

VALVE MECHANISM FOR EXHAUST GAS RECIRCULATION ON AN INTERNAL COMBUSTION ENGINE

Title (de)

VENTILVORRICHTUNG ZUR ABGASRÜCKFÜHRUNG AN EINEM VERBRENNUNGSMOTOR

Title (fr)

SYSTÈME DE VANNE DESTINÉ À LA RECIRCULATION DES GAZ D'ÉCHAPPEMENT D'UN MOTEUR À COMBUSTION INTERNE

Publication

EP 3224466 A1 (DE)

Application

EP 15781366 A

Priority

  • DE 102014117309 A
  • EP 2015074125 W

Abstract (en)

[origin: WO2016083018A1] Previously known valve mechanisms for recirculating exhaust gas on an internal combustion engine comprise a housing (48) that has at least one intake duct (50; 52) and at least one discharge duct (56), two valve seats (60, 68) in the housing (48), and two adjustment members (62, 70) which can be synchronously actuated by a joint actuator (76) and each of which is associated with one valve seat (60, 68), respectively, in order to adjust a flow area (64, 72). In order to improve the gas dynamics of the connected internal combustion engine, according to the invention, a first intake duct (50) and a second intake duct (52) that are separated by a partition (59) are formed in the housing (48), and the unobstructed flow area (64) of both intake ducts (50, 52) on the first valve seat (60) can be adjusted by changing the position of the first adjustment member (62) in relation to the first valve seat (60). In the closed state of the valve mechanism, a design of said type allows the radiator volume to be completely separated from the intake and discharge pipes.

IPC 8 full level (invention and additional information)

F02M 26/00 (2016.01)

CPC (invention and additional information)

F02M 26/69 (2016.02); F02M 26/22 (2016.02); F02M 26/39 (2016.02); F02M 26/42 (2016.02); F02M 26/47 (2016.02); F02M 26/54 (2016.02); F02M 26/05 (2016.02)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

EPO simple patent family

DE 102014117309 A1 20160602; EP 3224466 A1 20171004; WO 2016083018 A1 20160602

INPADOC legal status


2018-03-07 [DAV] REQUEST FOR VALIDATION OF THE EUROPEAN PATENT (IN ANY COUNTRY) (DELETED)

2018-03-07 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) (DELETED)

2017-10-04 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20170405

2017-10-04 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

2017-10-04 [AV] REQUEST FOR VALIDATION OF THE EUROPEAN PATENT IN:

- Countries: MA

2017-10-04 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: BA ME