公开(公告)号：US11913397B2

公开(公告)日：2024-02-27

申请号：US18119618

申请日：2023-03-09

Applicant: Yanmar Holdings Co., Ltd.

Inventor： Yu Hirao ,  Yuki Kobayashi

IPC: F02D41/04 ,  B63H21/36 ,  B63H21/38 ,  F01P11/16 ,  F02C7/32 ,  F02D11/02 ,  F02D11/10

CPC classification number: F02D41/042 ,  B63H21/36 ,  F01P11/16 ,  F02C7/32 ,  F02D11/02 ,  F02D11/107 ,  B63H21/383 ,  F01P2050/06

Abstract: An engine includes an engine stop switch for stopping the engine, and a cooling part included in a holding portion or passage of a cooling liquid. The engine stop switch is placed at the cooling part or at a peripheral part of the cooling part.

公开(公告)号：US11994093B2

公开(公告)日：2024-05-28

申请号：US18119261

申请日：2023-03-08

Applicant: Yanmar Holdings Co., Ltd.

Inventor： Yu Hirao ,  Shinya Matsuo

IPC: F02M63/02 ,  F02M55/02 ,  F02M59/44

CPC classification number: F02M63/0265 ,  F02M55/025 ,  F02M59/44

Abstract: [Problem] To provide, in an engine provided with two cylinder rows, a technology that, while suppressing a cost increase, can suppress a difference in combustion performance between the cylinder rows.
[Solution] An exemplary engine includes: a first cylinder row having plural cylinders arranged in a front and rear direction; a second cylinder row arranged parallel to the first cylinder row; plural first injectors provided for the respective cylinders of the first cylinder row, plural second injectors provided for respective cylinders of the second cylinder row; and a fuel pump having a first discharge port to discharge a fuel to the plural first injectors and a second discharge port to discharge a fuel to the plural second injectors. The fuel pump is placed between the first cylinder row and the second cylinder row in a plan view from an up and down direction.

公开(公告)号：US12140071B2

公开(公告)日：2024-11-12

申请号：US18589823

申请日：2024-02-28

Applicant: YANMAR HOLDINGS CO., LTD.

Inventor： Yu Hirao ,  Shinya Matsuo

IPC: F02B29/04 ,  F01N13/10 ,  F02B75/22 ,  F02M35/10 ,  F02M35/116

Abstract: An engine includes: two cylinder rows so placed as to be aligned side by side; a turbocharger; and an intercooler shared by the two cylinder rows, and connected to the turbocharger. The intercooler has: a cool liquid flow path through which a cool liquid flows, and an intake air flow path through which intake air from the turbocharger flows. The cool liquid flow path has an inlet and outlet of the cool liquid on one side in a first direction along the flow of the cool liquid. The intake air flow path has an inlet of the intake air on one side in a second direction along the flow of the intake air, and an outlet of the intake air on another side.

公开(公告)号：US12110853B2

公开(公告)日：2024-10-08

申请号：US18119144

申请日：2023-03-08

Applicant: Yanmar Holdings Co., Ltd.

Inventor： Yu Hirao ,  Yuki Kobayashi

IPC: F02M55/02 ,  F02B75/22 ,  F02M55/00

CPC classification number: F02M55/025 ,  F02B75/22 ,  F02M55/005

Abstract: An engine is an engine provided with a first cylinder row and a second cylinder row. The engine includes: a controller that is placed in an intra-bank area positioned between the first cylinder row and the second cylinder row; and a fuel pipe that is placed below the controller in the intra-bank area and included in a passage of a fuel. Ina plan view from an up and down direction, a joint portion possessed by the fuel pipe is displaced from the controller.

公开(公告)号：US11976586B2

公开(公告)日：2024-05-07

申请号：US18119598

申请日：2023-03-09

Applicant: Yanmar Holdings Co., Ltd.

Inventor： Yu Hirao ,  Shinya Matsuo

IPC: F02B29/04 ,  F01N13/10 ,  F02B75/22 ,  F02M35/10 ,  F02M35/116

CPC classification number: F02B29/0437 ,  F01N13/107 ,  F02B29/0462 ,  F02B75/22 ,  F02M35/10157 ,  F02M35/116

Abstract: An engine includes: two cylinder rows so placed as to be aligned side by side; a turbocharger; and an intercooler shared by the two cylinder rows, and connected to the turbocharger. The intercooler has: a cool liquid flow path through which a cool liquid flows, and an intake air flow path through which intake air from the turbocharger flows. The cool liquid flow path has an inlet and outlet of the cool liquid on one side in a first direction along the flow of the cool liquid. The intake air flow path has an inlet of the intake air on one side in a second direction along the flow of the intake air, and an outlet of the intake air on another side.

公开(公告)号：US20230287826A1

公开(公告)日：2023-09-14

申请号：US18119579

申请日：2023-03-09

Applicant: Yanmar Holdings Co., Ltd.

Inventor： Yu Hirao ,  Shinya Matsuo

IPC: F01P3/20 ,  F01P3/02 ,  F01P11/08 ,  F01N13/10 ,  F02B75/22 ,  F01P7/16 ,  F01M5/00 ,  F01P5/10

CPC classification number: F01P3/20 ,  F01M5/002 ,  F01N13/10 ,  F01P3/02 ,  F01P5/10 ,  F01P7/16 ,  F01P11/08 ,  F02B75/22 ,  F01P2003/021 ,  F01P2060/04

Abstract: An engine includes: an engine block including a cylinder block and a head block, a cool liquid cooler that cools a first cool liquid that cools the engine block, a lubricant oil cooler that cools a lubricant oil using the first cool liquid or a second cool liquid, an exhaust manifold mounted to the engine block, a turbocharger driven by exhaust gas from the exhaust manifold, an exhaust communication pipe that communicates the exhaust manifold with the turbocharger, and a cool liquid flow channel through which a cool liquid discharged from the engine block flows in an order of the exhaust communication pipe and the exhaust manifold. The cool liquid cooler and the lubricant oil cooler are so placed as to be arranged side by side on one end side in a crankshaft direction.

公开(公告)号：US12228066B2

公开(公告)日：2025-02-18

申请号：US18119579

申请日：2023-03-09

Applicant: Yanmar Holdings Co., Ltd.

Inventor： Yu Hirao ,  Shinya Matsuo

IPC: F01P3/20 ,  F01M5/00 ,  F01N13/10 ,  F01P3/02 ,  F01P5/10 ,  F01P7/16 ,  F01P11/08 ,  F02B75/22 ,  F01P3/12

Abstract: An engine includes: an engine block including a cylinder block and a head block, a cool liquid cooler that cools a first cool liquid that cools the engine block, a lubricant oil cooler that cools a lubricant oil using the first cool liquid or a second cool liquid, an exhaust manifold mounted to the engine block, a turbocharger driven by exhaust gas from the exhaust manifold, an exhaust communication pipe that communicates the exhaust manifold with the turbocharger, and a cool liquid flow channel through which a cool liquid discharged from the engine block flows in an order of the exhaust communication pipe and the exhaust manifold. The cool liquid cooler and the lubricant oil cooler are so placed as to be arranged side by side on one end side in a crankshaft direction.

公开(公告)号：US20230287846A1

公开(公告)日：2023-09-14

申请号：US18119173

申请日：2023-03-08

Applicant: Yanmar Holdings Co., Ltd.

Inventor： Yu Hirao ,  Shinya Matsuo

IPC: F02F7/00 ,  F02B75/22 ,  F02N5/04 ,  F01M13/04

CPC classification number: F02F7/0012 ,  F02B75/22 ,  F02N5/04 ,  F01M13/04 ,  F01M2013/005

Abstract: An engine includes: a cylinder block that has a cylinder included in a combustion chamber; a crankshaft that is placed in the cylinder block; a flywheel that is mounted to one end portion of the crankshaft; and a flywheel housing that is placed on a side of one end face of the cylinder block in a direction of the crankshaft and that houses the flywheel. The flywheel housing has a blow-by gas path through which a blow-by gas passes.