Cylinder two stroke engine with torsional resonance control

Details Cylinder two stroke engine with torsional resonance control Cylinder two stroke engine with torsional resonance control

1980-05-05

1983-02-01

Burns, Wendell E.

Internal-combustion engines

Multiple cylinder

Cylinders radiating

123 55R, 123 73R, F02B 7522

Patent

active

043709532

ABSTRACT:
The two stroke engine includes a V engine block having first and second cylinder banks each with first, second, and third cylinders, which banks are located at a bank angle within the range of from about 60.degree. to about 90.degree., a cylinder firing order wherein corresponding cylinders from alternate banks are successively fired, a cylinder firing interval constituted by a repetitious cycle of crankshaft angles between firings including a first firing interval angle followed by a second firing interval angle, wherein the sum of the first and second firing interval angles equals about 120.degree., and a crankshaft having first, second, and third crankpins respectively associated with the first, second and third cylinders of both of the banks, each of the crankpins being spaced from each other at an angle of about 120.degree. and each of the crankpins including a first portion associated with one of the cylinders in the first bank and a second portion associated with one of the cylinders in the second bank and located in axially adjacent relation to the first portion at a splay angle from the first portion, which splay angle is approximately equal to the absolute value of the difference between the first firing interval angle and the bank angle.

REFERENCES:
patent: Re15019 (1921-01-01), Landgraf
patent: 1288970 (1918-11-01), Thomas
patent: 2632340 (1953-03-01), Dolza et al.
patent: 3166054 (1965-01-01), Conover

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