Low rotation speed large torque engine

Abstract

The invention discloses a motor with low rotary speed and large torque, which comprises a crank connecting rod assembly, a cylinder block, a piston, a piston pin, a piston ring assemblage, a cylinder head, an exhaust valve, an inlet valve, an air inlet pipe and a carburetor, wherein the piston is fixed on the crank connecting rod assembly via the piston pin, the piston is arranged in the cylinder block, the exhaust value and the inlet valve are arranged in the duct of the exhaust value and the inlet valve of the cylinder head, the cylinder head is arranged on the cylinder block, the air inlet pipe is arranged on one side of the intake of the cylinder head, the carburetor is arranged on the air inlet pipe, the eccentricity of the crank connecting rod assembly is from 28.90mm to 31.10mm, and the diameter of the piston is from 54.5mm to 57mm, and the diameter of the cylinder / the stroke ratio is from 0.88 to 0.98. The motor is suitable for motor bicycles, motor tricycles, sand bank cars and carting cars, which has the advantages of outputting larger torque at the low speed, reducing the rotary speed at the maximum torque point, improving the initial starting acceleration property and the transcending accelerating ability, reducing heat load, oil consumption and oscillation, and increasing the durability.

Description

technical field [0001] The invention relates to an engine, specifically a low-speed high-torque engine suitable for vehicles such as two-wheeled motorcycles, three-wheeled motorcycles, ATVs, karts and the like. Background technique [0002] The engines used in vehicles such as two-wheeled motorcycles, three-wheeled motorcycles, ATVs, go-karts, etc. are all single-cylinder four-stroke gasoline engines. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the present invention aims to provide a low-speed high-torque engine whose output torque is significantly increased at medium and low speeds. [0004] The technical scheme adopted in the present invention is: [0005] A low-speed high-torque engine, including crank and connecting rod assembly, cylinder block, piston, piston pin, piston ring combination, cylinder head, exhaust valve, intake valve, intake pipe and carburetor, the piston is fixed by the piston pin On the crank connecting rod assemb...

AI Technical Summary

Problems solved by technology

[0002] At present, the engines used in vehicles such as two-wheeled motorcycles, three-wheeled motorcycles, ATVs, and go-karts are all single-cylinder four-stroke gasoline engines, which have high maximum power and maximum torque point speed, and poor low-speed performance

Images