Wassergekühlter Motor

Details

Veröffentlichungs-Nr.

EP3421748

Aktenzeichen

EP18170161

Anmeldetag

30. April 2018

Veröffentlichung

19. Februar 2020

Erteilung

19. Februar 2020

Rechtsraum

EP

IPC

F01P3/14F01P3/16F02F1/40F02F1/38F02F1/24F02F1/42

Abstract

There is provided a water cooled engine including a cylinder head with minimized thermal strain. A head water jacket 20 includes an inter-exhaust-port-wall water channel 29 between a first exhaust entrance port wall 3d and a second exhaust entrance port wall 3e. A cylinder head 6 includes a cooling water injection passage 27 provided at a bottom wall 6c of the cylinder head 6. The cooling water injection passage 27 is positioned on the exhaust end 6a side, and includes a passage entrance 27a provided on the exhaust end 6a side, and a passage exit 27b directed toward the inter-exhaust-port-wall water channel 29. An exhaust port wall includes a heat dissipation fin 28 extending from a first exhaust entrance port wall 3d toward an exhaust end 6a. The space between the heat dissipation fin 28 and a second exhaust entrance port wall 3e forms a water channel entrance of the inter-exhaust-port-wall water channel 29.

Anmelder

Firma

Kubota Corporation

Land

🇯🇵 Japan

Fachgebiete