Patent ID: 6390034
Filing Date: 2002-05-21
Classification: F01M,F02B

Abstract:
A reciprocating impacting machine comprising:(A) a two-cycle engine including (1) a cylinder which has an intake port, (2) a rotatable output shaft which is coupled to said cylinder, (3) a fuel supply system which includes a fuel tank, a fuel supply device that supplies a mixture of fuel and oil to said cylinder, and a fuel supply line leading from said fuel tank to said fuel supply device, and (4) an oil supply system which supplies oil to said fuel supply device, said oil supply system including (a) an oil source, (b) an oil supply pump having an oil inlet connected to said oil source and having an oil outlet, and (c) an oil supply line connecting said oil outlet of said oil supply pump to said fuel supply line; and (B) a reciprocating impact tool which is coupled to said engine output shaft and which reciprocates against the ground upon engine output shaft rotation, wherein said impact tool, said fuel supply system, and said oil supply system are configured such that operation of said reciprocating impact tool agitates oil in said fuel supply line sufficiently to thoroughly mix the oil in said fuel supply line with the fuel in said fuel supply line.