US 5,515,940 A · Power unit for saddle type vehicle

Abstract

A casing of a power unit is formed which is capable of simultaneously driving the front and the rear wheels of a saddle type vehicle. The power unit includes an engine and a transmission in a compact construction. A crankshaft, a main shaft, a secondary shaft and an output shaft are supported in parallel to the longitudinal axis of the vehicle in a casing for both an engine and a transmission. The crankshaft, the main shaft and the secondary shaft are arranged on substantially the same level. The output shaft is disposed below the main shaft and the secondary shaft. The opposite ends of the output shaft project outside from the casing. The opposite ends of the output shaft are connected to a front driving shaft and a rear driving shaft, respectively.

Claims24

Dependent claims

A power unit comprising:

an engine including a crankshaft, a main shaft, a secondary shaft and an output shaft being operatively arranged relative to each other;
a casing joined to a lower end of a cylinder block of the engine for supporting the crankshaft, the main shaft, the secondary shaft and the output shaft in a parallel arrangement;
wherein the crankshaft, the main shaft and the secondary shaft are arranged on substantially the same level,
wherein the output shaft is disposed under the main shaft and the secondary shaft, and
wherein the output shaft includes a front end and a rear end projecting from the casing.

2 more elements

Dependencies are inferred from the claim text.

Power unit for saddle type vehicle

Life of this patent

Power unit for saddle type vehicle

Life of this patent

Abstract

Claims24