SADDLE-RIDING TYPE VEHICLE

• Main Authors: FUJITA SHINJI, OGA KOJI, SATO KIMIHIKO
• Format: Patent
• Language: English; Japanese
• Published: 29.06.2017
• Subjects: BLASTING; CRANKCASE VENTILATING; ENGINE PLANTS IN GENERAL; HEATING; LIGHTING; LUBRICATING INTERNAL COMBUSTION ENGINES; LUBRICATING OF MACHINES OR ENGINES IN GENERAL; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; WEAPONS

PROBLEM TO BE SOLVED: To provide a saddle-riding type vehicle capable of supplying clean lubrication oil, in which foreign matters has been removed, to a transmission.SOLUTION: A saddle-riding type vehicle 1 comprises an annular plate 47 which is fixed to a first side wall 31a of a first crank web 31 and has a part separated from the first side wall 31a. By the first side wall 31a and the annular plate 47, a centrifugal filter 50 is formed, in which a radial outside is close and a radial inside is opened. The saddle-riding type vehicle 1 further comprises a first oil passage 81 leading lubrication oil to the centrifugal filter 50, and a second oil passage leading the lubrication oil from the centrifugal filter 50 to a gap between a connecting rod 19 and a crank pin 36. The front end of a transmission is situated rearward of the rear end of a cylinder. The transmission is arranged rearward of the centrifugal filter 50. In the vehicle front view, a part of the transmission overlaps with the centrifugal filter 50.SELECTED DRAWING: Figure 4 【課題】異物が除去されたきれいな潤滑油を変速機に供給することのできる鞍乗型車両を提供する。【解決手段】鞍乗型車両１は、第１クランクウェブ３１の第１側壁３１ａに固定され、一部が第１側壁３１ａから離間した環状プレート４７を備える。第１側壁３１ａと環状プレート４７とにより、径方向の外方が閉鎖されかつ径方向の内方が開放された遠心フィルタ５０が形成されている。鞍乗型車両１は更に、遠心フィルタ５０に潤滑油を導く第１油路８１と、遠心フィルタ５０からコンロッド１９とクランクピン３６との間の隙間に潤滑油を導く第２油路とを備える。変速機の前端はシリンダの後端よりも後方に位置する。変速機は遠心フィルタ５０の後方に配置されている。車両正面視において、変速機の一部は遠心フィルタ５０と重なっている。【選択図】図４