公开(公告)号：US12228063B2

公开(公告)日：2025-02-18

申请号：US16861748

申请日：2020-04-29

Applicant: YANMAR CO., LTD.

Inventor： Eiji Yamashita ,  Yosuke Seiyama

IPC: F01N3/24 ,  B60K13/04 ,  F01M1/10 ,  F01M9/10 ,  F01M11/03 ,  F01N3/021 ,  F01N13/10 ,  F01N13/18 ,  F01P5/02 ,  F01P5/10 ,  F02B67/00 ,  F02B67/06 ,  F02B77/00 ,  F02M35/104 ,  F02M35/16

Abstract: An apparatus includes an exhaust gas purification device configured to be coupled to a cylinder head of an engine via a bracket, the exhaust gas purification device defined by a housing including a body portion, a first end portion, and a second end portion, the body portion interposed between the first end portion and the second end portion, the first end portion configured to be coupled to the bracket.

公开(公告)号：US12221938B2

公开(公告)日：2025-02-11

申请号：US16090462

申请日：2017-03-15

Applicant: Yanmar Co., Ltd.

Inventor： Koichi Kozato ,  Hiroaki Naganawa

IPC: F02F7/00 ,  F01M11/02 ,  F02F1/00

Abstract: An engine device including a cylinder block for supporting a crankshaft so that the crankshaft is rotatable. Opposite side portions of the cylinder block along a crankshaft axial direction have, on one of their ends relative to the crankshaft axial direction, projecting portions protruding in a direction away from the crankshaft, and reinforcing ribs provided between side walls and the projecting portions of the opposite side portions so that the reinforcing ribs are widened at their sides close to the corresponding projecting portions, the projecting portions and the reinforcing ribs being integrally formed with the cylinder block.

公开(公告)号：US11634183B2

公开(公告)日：2023-04-25

申请号：US16891887

申请日：2020-06-03

Applicant: YANMAR CO., LTD.

Inventor： Yoshiaki Kurokawa

IPC: B62D25/12 ,  A01B69/02 ,  B62D25/10 ,  B60J10/86 ,  B60R19/52 ,  B60Q1/04

Abstract: A hood of a tractor including a front grill, a light unit, and an upper cover is provided with a center pillar. The front grill is attached to the center pillar, the light unit is attached to the front grill, and the upper cover is supported by the center pillar. The hood is further provided with a side frame and a lower cover, where the side frame is attached to the center pillar, and the lower cover is attached to at least the upper cover and the side frame.

公开(公告)号：US11408324B2

公开(公告)日：2022-08-09

申请号：US16496855

申请日：2017-12-12

Applicant: Yanmar Co., Ltd.

Inventor： Masataka Uchibori

IPC: F01N13/18 ,  F02B37/013 ,  F01N3/021 ,  F01N3/28 ,  F01N13/10 ,  F02B37/00

Abstract: An engine device including an exhaust manifold provided on an exhaust side surface which is a first side surface of a cylinder head and a two-stage turbocharger that is driven by exhaust gas discharged from the exhaust manifold. The two-stage turbocharger includes a high-pressure turbocharger coupled to the exhaust manifold and a low-pressure turbocharger coupled to the high-pressure turbocharger. The high-pressure turbocharger is arranged on a side of the exhaust manifold. The low-pressure turbocharger is arranged above the exhaust manifold. An exhaust gas outlet of the high-pressure turbocharger and an exhaust gas inlet of the low-pressure turbocharger are coupled with each other through a flexible high-pressure exhaust gas pipe.

公开(公告)号：US11339747B2

公开(公告)日：2022-05-24

申请号：US16496879

申请日：2017-12-26

Applicant: Yanmar Co., Ltd.

Inventor： Ippei Suzuki

IPC: F02M26/23 ,  F02M26/08 ,  F02F1/36 ,  F02F1/42

Abstract: An engine device including an exhaust manifold provided on an exhaust side surface of a cylinder head, and an exhaust pressure sensor configured to detect an exhaust gas pressure in the exhaust manifold. The exhaust pressure sensor is attached to the cylinder head. The exhaust pressure sensor is connected to the exhaust manifold through an exhaust pressure bypass path provided in the cylinder head and an exhaust pressure detection pipe connecting the exhaust pressure bypass path to the exhaust manifold. A cooling water passage is provided nearby the exhaust pressure bypass path, in the cylinder head.

公开(公告)号：US11297752B2

公开(公告)日：2022-04-12

申请号：US16478039

申请日：2018-01-15

Applicant: YANMAR CO., LTD.

Inventor： Takeshi Kishimoto ,  Kazuyuki Kotani ,  Toshikazu Kokubunji ,  Tadayoshi Sukigara ,  Kazuyoshi Tutiya

IPC: A01B49/02 ,  A01B49/04 ,  A01G13/02 ,  A01B13/02 ,  A01B33/16

Abstract: A mulching machine comprising a machine body that includes a tilling unit performing tilling, a ridge forming unit forming a ridge with the tilled soil, a mulch film laying unit drawing a mulch film from a film roll and laying it over the ridge, and ground wheels supporting the machine body. The tilling unit and the ridge forming unit are arranged in this order from the front in the traveling direction of the mulching machine, and the film roll is positioned such that its center of gravity does not overlap the ground wheels and is located forward of the ground wheels in the traveling direction.

公开(公告)号：US11292335B2

公开(公告)日：2022-04-05

申请号：US16743825

申请日：2020-01-15

Applicant: YANMAR CO., LTD.

Inventor： Yoshiaki Kurokawa

IPC: B60K13/04 ,  B62D25/20 ,  B62D25/10 ,  B60R13/08 ,  B60K11/04 ,  B60K11/08 ,  B62D25/12

Abstract: The working vehicle includes an engine installed in a front portion of a traveling machine body, and a post-processing device configured to purify exhaust gas from the engine. The post-processing device is mounted on an upper side of the engine. The engine and the post-processing device are covered with a hood. A hood shield plate is disposed on a rear surface side of the hood and covers at least the post-processing device from a rear surface. A heat insulating layer is formed between an operating seat disposed on a rear side of the hood and the hood shield plate.

公开(公告)号：US11198404B2

公开(公告)日：2021-12-14

申请号：US16658719

申请日：2019-10-21

Applicant: YANMAR CO., LTD.

Inventor： Daisuke Takii

IPC: B60R16/023 ,  F02B65/00 ,  F02B77/00 ,  B60R16/02

Abstract: A tractor including an intake pipe for supplying intake air to an intake unit of an engine body, and an engine harness for electrically connecting the engine body and an engine controller to each other. The intake pipe is provided with a rib formed along the longitudinal direction of the intake pipe, and the engine harnesses is partially supported by the rib.

公开(公告)号：US11122728B2

公开(公告)日：2021-09-21

申请号：US16466603

申请日：2017-11-30

Applicant: Yanmar Co., Ltd.

Inventor： Takeshi Miyazaki ,  Toshiyuki Miwa

IPC: A01B63/10 ,  B60K28/04 ,  B62D49/00

Abstract: A tractor in which a lift valve of a hydraulic system for lifting up/down a work machine is mechanically coupled to a lift lever, and conditions for an engine startup are set as follows: a reverser lever is at a neutral position thereof; a PTO (power take-off) clutch is disengaged; a seat switch is ON; and the lift lever is at a lowermost position thereof. A switch driving unit is provided on a side face of the lift lever so that the side face is orthogonal to a turning direction of the lift lever; a switch is provided so as to be opposed to the switch driving unit when the lift lever is turned to be at the lowermost position; and the lift lever at the lowermost position is detected by the switch.

公开(公告)号：US11111866B2

公开(公告)日：2021-09-07

申请号：US16884171

申请日：2020-05-27

Applicant: YANMAR CO., LTD.

Inventor： Ryoichi Hagiwara ,  Kazuteru Toshinaga ,  Masayoshi Doi ,  Taishi Murakami ,  Tatsuro Ohsara ,  Osamu Yamagishi

IPC: F02D41/00 ,  F02D19/06 ,  F02D41/30 ,  F02D19/10 ,  F02D41/40 ,  F02D29/02 ,  B63H21/14

Abstract: An engine device including an intake manifold configured to supply air into a cylinder; an exhaust manifold configured to output exhaust gas from the cylinder; a gas injector which mixes a gaseous fuel with the air supplied from the intake manifold; and a main fuel injection valve configured to inject a liquid fuel into the cylinder for combustion. At the time of switching from a gas mode in which the gaseous fuel is supplied into the cylinder to a diesel mode in which the liquid fuel is supplied into the cylinder, a supply-start timing of the liquid fuel is delayed relative to a supply-stop timing of the gaseous fuel.