公开(公告)号：US20240280071A1

公开(公告)日：2024-08-22

申请号：US18416117

申请日：2024-01-18

Applicant: Power Packer North America, Inc.

Inventor： Mark Jason Boswell ,  Timothy Garritt House

IPC: F02M26/70 ,  F02M26/11 ,  F02M26/21 ,  F02M26/54

CPC classification number: F02M26/70 ,  F02M26/11 ,  F02M26/54 ,  F02M26/21

Abstract: An exhaust gas recirculation (EGR) valve assembly includes a valve housing with a wall defining a flow passage. The valve housing defines a bore communicating with the flow passage. A shaft is supported in the bore and extends into the flow passage. A flap is supported on the shaft in the flow passage. The flap is movable relative to the flow passage between a closed position and an open position. A sealing member projects from the wall into the flow path. The sealing member has a sealing surface that interacts with the flap in the closed position to inhibit gas flow through the flow passage, an opposite surface tapering toward the wall, and a circumferential end surface proximate and tapered away from the bore. The flap is coined against the sealing surface. A spider assembly is positioned between the shaft and a drive shaft of an actuator assembly.

公开(公告)号：US11761408B2

公开(公告)日：2023-09-19

申请号：US17753856

申请日：2019-10-23

Applicant: VOLVO TRUCK CORPORATION

Inventor： Laurent Bauvir ,  Raphael Bost

IPC: F02M26/70 ,  F02M26/05 ,  F02M26/16 ,  F02M26/19 ,  F02M26/21 ,  F02M26/71

CPC classification number: F02M26/70 ,  F02M26/05 ,  F02M26/16 ,  F02M26/19 ,  F02M26/21 ,  F02M26/71

Abstract: The invention relates to an internal combustion engine system (100), comprising: —an internal combustion engine (2) comprising a cylinder block (3) housing a plurality of cylinders (4), a first intake manifold (6a) connected to a first group of cylinders (4a) a second distinct intake manifold (6b) connected to a second group of cylinders (4b) and a first, respectively a second, exhaust manifold (8a, 8b) for receiving the exhaust gas emitted from the first, respectively the second, group of cylinders (4a, 4b); —an air inlet line (10); —an EGR line (20) connected to the first and second exhaust manifolds (8a, 8b); wherein the internal combustion engine system is operable in at least two operating modes, respectively a normal operating mode in which all cylinders are supplied with fuel and a regeneration operating mode, in which the cylinders of the first group of cylinders (4a) are no longer supplied with fuel, characterized in that: —the system also includes a mixing unit (30) comprising a four-way valve, said four-way valve (30) having a first inlet (31) connected to the EGR line (20), a second inlet (32) connected to the air inlet line (10), a first outlet (33) connected to the first intake manifold (6a) and a second outlet (34) connected to the second intake manifold (6b); —the four-way valve is designed so that, in said normal operating mode, the intake gases supplied to the first intake manifold (6a) and to the second intake manifold (6b) have approximately the same proportion of exhaust gas and so that, in said regeneration operating mode, the intake gas supplied to the first intake manifold (6a) only includes exhaust gas.

公开(公告)号：US11441521B2

公开(公告)日：2022-09-13

申请号：US16627309

申请日：2017-08-15

Applicant: VOLVO TRUCK CORPORATION ,  Jian Li ,  John Lowe

Inventor： Jian Li ,  John Lowe

IPC: F02M26/71 ,  F02M26/68 ,  F02M26/16 ,  F02M26/21 ,  F02M26/53 ,  F02M26/69

Abstract: A valve for m exhaust gas recirculation Mae in an engine includes a first barrel connectable to a first group of cylinders, a second barrel connectable to a second group of cylinders, and a center barrel between the first and second barrels and connectable to an intake of the engine, A poppet valve with two valve heads mounted on a valve stem is provided to open and close openings between the first and second barrels, with one of the valve beads of the poppet valve opening into the center barrel Vanes are provided in the center barrel to direct flow from the opening by the valve bead that opens into the center barrel toward the outlet opening.

公开(公告)号：US11136946B2

公开(公告)日：2021-10-05

申请号：US16905971

申请日：2020-06-19

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Norihiko Sumi ,  Noriyasu Mishima

IPC: F02M26/21 ,  F02M26/42 ,  F02M35/112 ,  F02M35/10 ,  F02M26/41 ,  F02M26/20

Abstract: An EGR gas distributor includes an inflow portion into which EGR gas that has passed through an EGR valve flows, a first EGR port connected to a section of the intake manifold in which intake air introduced into the first cylinder flows, a second EGR port connected to a section of the intake manifold in which intake air introduced into the second cylinder flows, a first gas passage that connects the inflow portion and the first EGR port to each other, and a second gas passage that connects the first gas passage and the second EGR port to each other. A shortest path between the first EGR port and the second EGR port is longer than both of a shortest path between the inflow portion and the first EGR port and a shortest path between the inflow portion and the second EGR port.

公开(公告)号：US10995649B2

公开(公告)日：2021-05-04

申请号：US16088399

申请日：2017-07-27

Applicant: MAZDA MOTOR CORPORATION

Inventor： Keishi Kitabatake ,  Taku Kuramashi ,  Tamotsu Takamure ,  Takeshi Nakahira ,  Yuji Kojima ,  Amane Tsuda

IPC: F01N13/10 ,  F02M26/06 ,  F02M26/12 ,  F02M26/15 ,  F02M26/24 ,  F02M26/28 ,  B60K5/04 ,  B60K13/04 ,  B62D25/14 ,  B62D25/20 ,  F01N3/10 ,  F02M26/21 ,  F02M26/27 ,  F02M26/50 ,  F01N13/08 ,  F01N3/033 ,  F02B37/00 ,  F02B39/02 ,  F02B39/04 ,  F02B39/10 ,  F02D23/00

Abstract: A vehicle engine 2 comprises an exhaust system having an exhaust manifold 12 and an exhaust purification device 18. The exhaust manifold 12 is disposed at a predetermined distance from a dash panel 106 constituting a body of the vehicle 100, the exhaust purification device 18 is disposed in a position overlapping a floor tunnel region 114, formed by a floor tunnel of the body, and is disposed below the exhaust manifold 12 and to one side of the center of the engine 2 in the cylinder-array direction, as viewed from the longitudinal direction of the vehicle 100. An exhaust purification device introduction passage 17 connecting the exhaust manifold 12 and the exhaust purification device 18 is disposed on the other side of the center of the exhaust manifold 12 in the cylinder-array direction, and extends below the exhaust manifold 12 to be connected to the exhaust purification device 18.

公开(公告)号：US10808652B2

公开(公告)日：2020-10-20

申请号：US15501123

申请日：2016-09-26

Applicant: Komatsu Ltd.

Inventor： Yasuhiro Kamoshida ,  Tatsuya Iwazaki ,  Makoto Watanabe ,  Tomohiro Horiuchi

IPC: F02M26/41 ,  F02M26/32 ,  F02M26/30 ,  F02M26/05 ,  F02M26/28 ,  F02M26/21 ,  F02M26/23

Abstract: An EGR apparatus configured to circulate exhaust gas discharged from an exhaust manifold of an engine to an intake manifold of the engine includes: an EGR cooler disposed at a downstream side of the exhaust manifold and configured to cool the exhaust gas discharged from the exhaust manifold; a pair of EGR valves disposed at an upstream side from the intake manifold and configured to adjust an amount of the exhaust gas to be supplied to the intake manifold; and an exhaust gas connector that establishes communication between the EGR cooler and the exhaust manifold, in which the exhaust gas connector includes a cooling water path to which cooling water for cooling the exhaust gas flowing inside the exhaust gas connector is supplied.

公开(公告)号：US10746080B2

公开(公告)日：2020-08-18

申请号：US16088395

申请日：2017-07-27

Applicant: MAZDA MOTOR CORPORATION

Inventor： Takeshi Nakahira ,  Yuji Kojima ,  Amane Tsuda

IPC: F02M25/06 ,  F01N13/10 ,  F02M26/06 ,  F02M26/12 ,  F02M26/15 ,  F02M26/24 ,  F02M26/28 ,  B60K5/04 ,  B60K13/04 ,  B62D25/14 ,  B62D25/20 ,  F01N3/10 ,  F02M26/21 ,  F02M26/27 ,  F02M26/50 ,  F01N13/08

Abstract: An exhaust system device (1) for a vehicle (100) comprises an exhaust purification device (18) and a first exhaust gas recirculation (EGR) cooler (24). The exhaust purification device (18) is disposed with a central axis of a downstream-side end inclined downwardly toward a rear side of the vehicle (100). The EGR cooler (24) is provided so as to introduce exhaust from a downstream side of the exhaust purification device (18), is adjacent to the exhaust purification device (18) and fixed to the exhaust purification device (18), and is disposed such that a central axis of the EGR cooler (24) is inclined downwardly toward the rear side of the vehicle.

公开(公告)号：US10539100B2

公开(公告)日：2020-01-21

申请号：US16081454

申请日：2017-01-27

Applicant: DENSO CORPORATION

Inventor： Hideki Hayashi ,  Yuichiro Moritani

IPC: F16K1/20 ,  F02M26/70 ,  F02M26/64 ,  F16K3/22 ,  F16K5/04 ,  F16K11/076 ,  F02M26/71 ,  F02M26/21 ,  F02M26/72 ,  F16K1/226

Abstract: A valve device includes a shaft, a valve body, and a housing including a valve opening. An outwardly facing surface of the valve body is out of contact with the housing and a valve-facing surface is in contact with the housing in a fully closed state in which the valve body closes the valve opening. A valve seal surface includes a first valve seal surface protruding in a valve closing direction and a second valve seal surface recessed in a valve opening direction. A first seal distance in a radial direction from an outer diameter end of the first valve seal surface to a rotation axis is shorter than a second seal distance in the radial direction from an outer diameter end of the second valve seal surface to the rotation axis. The first valve seal surface and the second valve seal surface each have at least a curved surface.

公开(公告)号：US20190383245A1

公开(公告)日：2019-12-19

申请号：US16089167

申请日：2017-03-13

Applicant: YANMAR CO., LTD.

Inventor： Takayuki ONODERA

IPC: F02M26/41 ,  F02M26/32 ,  F02M26/21 ,  F02M35/104 ,  F02M35/10 ,  F02M26/12 ,  F02M26/28

Abstract: An engine device 1 including: a cylinder head (2) provided with a plurality of intake fluid passages (36) for taking fresh air into a plurality of intake ports and a plurality of exhaust fluid passages (37) for emitting an exhaust gas from a plurality of exhaust ports. An intake manifold (3) which aggregates the plurality of intake fluid passages 36 is formed integrally with one of left and right side portions of the cylinder head (2).

公开(公告)号：US20190226427A1

公开(公告)日：2019-07-25

申请号：US16247781

申请日：2019-01-15

Applicant: Mazda Motor Corporation

Inventor： Yoshiyuki Uehane ,  Daijirou Ishimoto ,  Atsuhiro Hatabu

IPC: F02M26/21 ,  F02M26/25 ,  F02M26/34

Abstract: A multi-cylinder engine includes an engine body having first and second cylinder groups, first and second exhaust passage groups each having a plurality of independent exhaust passage parts and a collective exhaust passage part, and an exhaust gas recirculation (EGR) passage. In a plan view in cylinder axis directions, the passage groups are disposed adjacent to each other, and, in the first exhaust passage group, a first independent exhaust part of the plurality of independent exhaust passage parts is connected to the EGR passage and a second independent exhaust passage part is connected to the collective exhaust passage part so as to be directed to a connection of the first independent exhaust passage part to the collective exhaust passage part, and in the second exhaust passage group, an opening of the collective exhaust passage part is offset toward the first exhaust passage group in a lineup direction.