Verbrennungsmotor und mit dem Motor ausgestattetes Motorrad

Details

Veröffentlichungs-Nr.

EP2806120

Aktenzeichen

EP14165176

Anmeldetag

17. April 2014

Veröffentlichung

24. August 2016

Erteilung

24. August 2016

Rechtsraum

EP

IPC

F01M1/00F02F7/00

Abstract

In an internal combustion engine, upper and lower crankcases include a crank chamber, a clutch chamber in communication with the crank chamber, and a cam chain chamber. The upper crankcase includes a second upper partition wall configured to separate the cam chain chamber and the clutch chamber from each other. The lower crankcase includes a first lower partition wall configured to separate the cam chain chamber and the crank chamber from each other, and a second lower partition wall configured to separate the cam chain chamber and the clutch chamber from each other. An oil passage allowing communication between the cam chain chamber and the crank chamber is provided in the first lower partition wall. First passages allowing communication between the cam chain chamber and the clutch chamber are provided respectively in the bottom surface of the second upper partition wall and in the top surface of the second lower partition wall.

Anmelder

Firma

Yamaha Hatsudoki Kabushiki Kaisha

Land

🇯🇵 Japan

Fachgebiete