Abgaskrümmer und Motor

Details

Veröffentlichungs-Nr.

EP4772730

Anmeldetag

29. Dezember 2025

Veröffentlichung

8. Juli 2026

Rechtsraum

EP

IPC

F01N3/28, F01N3/10

Abstract

Provided is a technology capable of suppressing flow disturbance caused at the time of joining of an exhaust gas, improving thermal efficiency of an engine, and enhancing cleanliness of an exhaust gas. An exhaust manifold is an exhaust manifold of an engine including a plurality of cylinders, and includes: a plurality of exhaust pipes through each of which an exhaust gas discharged from each of the cylinders flows; and a joining pipe coupled to the plurality of exhaust pipes, to which the exhaust gas flowing through each of the exhaust pipes is joined. The joining pipe includes a plurality of guide portions provided to respectively correspond to the plurality of exhaust pipes. Each of the guide portions guides the exhaust gas flowing in from the corresponding exhaust pipe in a flow direction of the exhaust gas flowing through the joining pipe. Each of the guide portions has an opposing surface provided to be opposed to an outlet of the corresponding exhaust pipe. At least one of the guide portions has a part that is disposed on a downstream side in the flow direction with respect to the outlet.

Anmelder

Firma

Yanmar Holdings Co., Ltd.

Land

🇯🇵 Japan

Fachgebiete