Abgasanschlussstruktur für einen Verbrennungsmotor

Details

Veröffentlichungs-Nr.

EP4775827

Anmeldetag

17. Dezember 2025

Veröffentlichung

15. Juli 2026

Rechtsraum

EP

IPC

F02F1/42

Abstract

Object Provided is an exhaust port structure for an internal combustion engine capable of uniformizing and increasing the flow rate of exhaust gas flowing through an exhaust port and increasing the output of the internal combustion engine. Solution In an exhaust port structure for an internal combustion engine 1, when an imaginary plane 21 connecting an upstream end 5d of a lower surface 5m of an exhaust passage portion 5D and a downstream end 5c of the lower surface 5m of the exhaust passage portion 5D is set, the lower surface 5m of the exhaust passage portion 5D is formed with a swollen portion 5g that swells above the imaginary plane 21. The swollen portion 5g includes an increasing swollen portion 5h whose height increases with respect to the imaginary plane 21 from the upstream end 5d of the swollen portion 5g toward an apex 5j of the swollen portion 5g and a decreasing swollen portion 5i whose height decreases with respect to the imaginary plane 21 from the apex 5j toward the downstream end 5c of the swollen portion 5g. The increasing swollen portion 5h is disposed at a position opposed to the boss portion 5B in an up-down direction.

Anmelder

Firma

Suzuki Motor Corporation

Land

🇯🇵 Japan

Fachgebiete