-
公开(公告)号：EP3387230B1
公开(公告)日：2019-09-11
申请号：EP16813105.0
申请日：2016-12-08
Applicant: RENAULT s.a.s.
Inventor： SELLAMI, Ali , RONDELE, Sylvere , DAMAGNEZ, Frederic
-
2.发明公开
-
-
公开(公告)号：EP3734054A1
公开(公告)日：2020-11-04
申请号：EP17936678.6
申请日：2017-12-27
Applicant: Weichai Power Co., Ltd.
Inventor： LI, Wei , LIU, Junlong , LI, Zhijie , PAN, Jie , WANG, Zuofeng , LIU, Chuntao , KANG, Tianqin
IPC: F02M26/13
Abstract: A backflow preventer, comprising one or a plurality of reducing rings (61) that are disposed in a pipeline (11); the outer edges of the reducing rings (61) are connected to the inner wall of the pipeline (11); the plurality of reducing rings (61) are arranged along the axis of the pipeline (11); and the actual internal area of the reducing rings (61) are gradually decreased in the axial direction of the reducing rings. Further disclosed is an engine EGR system comprising the backflow preventer. The backflow preventer can generate, according to different flowing directions in a pipeline, throttling losses of different degrees; when an air flows in a direction (forward direction) in which the actual internal area of the reducing rings decreases, the throttling loss is small; and when then air flows in a direction (reverse direction) in which the actual internal area of the reducing rings increases, the throttling loss is large. Therefore, the reducing rings are capable of suppressing reverse flow and promoting forward flow when air reciprocates in the pipeline, and thereby preventing the air from backflow in the pipeline.
-
公开(公告)号：EP3379069A1
公开(公告)日：2018-09-26
申请号：EP18160839.9
申请日：2018-03-09
Applicant: VOLKSWAGEN AKTIENGESELLSCHAFT
Inventor： Car, Onur Ulas , Schlothauer, Janet
CPC classification number: F02M26/30 , F01N3/021 , F01N3/0814 , F01N3/0842 , F01N3/101 , F01N3/103 , F01N13/009 , F02M26/12 , F02M26/13 , Y02T10/22
Abstract: Die Erfindung betrifft einen Verbrennungsmotor, welcher mit seiner Einlassseite mit einem Ansaugtrakt und mit seiner Auslassseite mit einem Abgassystem verbunden ist. Das Abgassystem weist einen motornahen Katalysator, insbesondere einen Oxidationskatalysator und einen unmittelbar stromabwärts des motornahen Katalysators angeordneten Partikelfilter auf. Eine Niederdruck-Abgasrückführung verbindet den Abgaskanal unmittelbar stromabwärts des Partikelfilters mit dem Ansaugtrakt. Dabei ist in der Niederdruck-Abgasrückführung ein Abgas-Rückführungs-Kühler vorgesehen, welcher räumlich entkoppelt von der heißen Auslassseite an einer um 90° gedrehten Seite des Verbrennungsmotors angeordnet ist.
Die Erfindung betrifft ferner eine Abgasnachbehandlungsvorrichtung für einen solchen Verbrennungsmotor. Es ist vorgesehen, dass der Niederdruck-Abgasrückführungs-Kühler an einer Stirnseite des Motorblocks des Verbrennungsmotors und somit 90° versetzt und beabstandet von dem Abgaskrümmer angeordnet ist.-
Patent Agency Ranking
公开(公告)号：EP2565438A4
公开(公告)日：2017-01-18
申请号：EP11774683
申请日：2011-02-17
Applicant: YANMAR CO LTD
Inventor： NISHIKAWA HIROYASU
CPC classification number: F02M25/0754 , F02M26/13 , F02M26/21 , F02M26/41 , F02M26/47 , F02M26/57 , F02M37/0047
Abstract: In an engine 70 including an EGR apparatus 91 which refluxes a portion of exhaust gas from an exhaust manifold 71 to an intake manifold 73 as EGR gas, it is an object of the present invention of the application to improve assembling operability of a differential pressure sensor 163 which detects a differential pressure between intake pressure of the intake manifold 73 and exhaust pressure in the exhaust manifold 71. According to the engine 70 of the invention of the application, the differential pressure sensor 163 is mounted on a head cover 160 which covers an upper portion of a cylinder head 72. An intake pressure taking-out passage 166 which is in communication with the intake manifold 73 is formed in the cylinder head 72. An intake pressure introducing passage 169 which is connected to the differential pressure sensor 163 is formed in the head cover 160. The intake pressure taking-out passage 166 and the intake pressure introducing passage 169 are in communication with each other. According to this configuration, a stay which is for exclusive use for mounting the differential pressure sensor 163 and an external pipe for taking intake pressure into the differential pressure detecting means 163 become unnecessary.
-
公开(公告)号：EP2959154B1
公开(公告)日：2018-01-17
申请号：EP14703610.7
申请日：2014-02-11
Applicant: PIAGGIO & C. S.p.A.
Inventor： MARCACCI, Maurizio , ZAPPALA', Leonardo
CPC classification number: F02M35/10019 , F02M26/13 , F02M35/10222
Abstract: An air suction and exhaust gases recirculation system (1, 2) for a diesel engine (30) it is described, comprising: - a suction duct (3, 4) provided to channel air aspirated from the atmosphere to at least one cylinder (5) of said engine (30), the suction duct (3, 4) including an intake manifold (3) and a suction line connected to the intake manifold (3) which is positioned upstream of said intake manifold (3); and - a recirculation system of the exhaust gases (2) provided to introduce back into the suction duct (3, 4) a part of the exhaust gases coming from an exhaust pipe (6) of said engine (30), said recirculation system (2) comprising a recirculation duct of the exhaust gases (8, 9, 10) fitted with an output gate (11) for said part of the exhaust gas which is suitable for communicating with the suction duct (3, 4). The intake manifold (3) comprises an input cross-section (17), having a first fluid transit area, to permit the input into the intake manifold (3) of the air coming from the suction line 4. The suction duct (3, 4) further comprises a duct cross-section (18), having a second fluid transit area, which is situated upstream of said output gate (11). The air suction and exhaust gas recirculation system (1, 2) is characterised in that the second fluid transit area is an invariant and reduced area compared to the first fluid transit area.
-
公开(公告)号：EP2199585A4
公开(公告)日：2018-01-10
申请号：EP08840572
申请日：2008-10-16
Applicant: TOYOTA MOTOR CO LTD
Inventor： YAMASHITA AKIRA
IPC: F02M26/13
CPC classification number: F02M26/35 , F01N3/037 , F02D41/0007 , F02D41/005 , F02M26/06
Abstract: In an exhaust gas recirculation apparatus of an internal combustion engine, a technique is provided which reduces a pressure loss in a cyclone type collection device. The apparatus includes a turbocharger (5), a low pressure EGR passage (31), a cyclone type collection device (11) that is arranged in the low pressure EGR passage (31) and collects foreign matters in a low pressure EGR gas, a flow rate regulating passage (12) that causes the low pressure EGR gas to flow from a foreign matter collection part of the cyclone type collection device (11) into an exhaust passage (4) downstream of a connection part thereof with the low pressure EGR passage (31), a flow rate regulating valve (13) that is arranged in the flow rate regulating passage (12) and regulates the flow rate of the low pressure EGR gas flowing through the flow rate regulating passage (12), and a ECU (14) that performs the opening and closing control of the flow rate regulating valve in accordance with a pressure loss occurring at the time when the low pressure EGR gas flowing through the low pressure EGR passage (31) passes through the cyclone type collection device (11).
-
公开(公告)号：EP2673485B1
公开(公告)日：2017-11-15
申请号：EP11858360.8
申请日：2011-02-11
Applicant: Volvo Lastvagnar AB
Inventor： KOVAC, Aleksandar , DAHL, Erik , JEMT, Katarina
CPC classification number: F02M26/13 , F02B29/0412 , F02B29/0418 , F02B29/0425 , F02B29/0437 , F02B29/0475 , F02M26/05 , F02M26/24 , F02M26/26 , F02M26/30 , F02M26/33 , F02M26/36 , F02M26/42 , Y02T10/121 , Y02T10/146
-
10.发明公开EGR-SYSTEM, ENGINE COMPRISING SUCH SYSTEM AND VEHICLE COMPRISING SUCH ENGINE 审中-公开EGR系统，这样的系统和车辆有了这样的发动机发动机
公开(公告)号：EP2951423A4
公开(公告)日：2016-11-02
申请号：EP14746417
申请日：2014-01-27
Applicant: SCANIA CV AB
Inventor： SPONTÓN OVE
Abstract: The invention relates to an EGR system, including a duct (48) with an inlet port (50) and an outlet port (56), which duct (48) includes a first duct section (54) with a first cross-sectional area (Al), a second duct section (56) with a second cross-sectional area (A2) and a transitional section (58) arranged between the first and second duct sections (54, 56). The transitional section (58) is designed so that a first virtual wall (60) is formed by EGR gases (25) in the transitional section (58) when the EGR gases (25) flow in the direction from the inlet port (50) to the outlet port (52) and a second virtual (74) wall is formed by a return flow (72) in the first duct section (54) when the return flow (72) flows from the outlet port (52) to the inlet port (50). The invention also relates to a combustion engine (2) with such an EGR system (4) and a vehicle (1) which includes such a combustion engine (2).
-
-
-
-
-
-
-
-
-
Search Results
20
records
(took 0.015 seconds)
