Method for making a cylinder

Details Method for making a cylinder Method for making a cylinder

2007-01-09

2007-01-09

Jimenez, Marc (Department: 3726)

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

C029S557000

Reexamination Certificate

active

10664944

ABSTRACT:
A cylinder housing (1) is cast with a cylinder wall (2) in the making of a cylinder for an internal combustion engine. The cylinder wall delimits an interior space (3) for accommodating a reciprocating piston and, thereafter, a control window (5) is machined into the cylinder wall (2) as an opening of a transfer channel (4) into the interior space (3). A two-stage machining for forming the control window (5) is provided in order to make possible a rapid and cost effective manufacture of the cylinder. In a first step with a work tool (7) having a rotating primary movement (11), a breakthrough (10) is machined into the cylinder wall (2) and, in a second step with a work tool, the breakthrough (10) is widened to the wanted dimensions of the control window (5).

REFERENCES:
patent: 6041499 (2000-03-01), Matsuura et al.
patent: 6729274 (2004-05-01), Matuura et al.
patent: 2004/0107571 (2004-06-01), Leiendecker
patent: 49-73515 (1974-07-01), None
patent: 58155114 (1983-09-01), None
patent: 2-197388 (1990-02-01), None
patent: 407097969 (1995-04-01), None
patent: 10252552 (1998-09-01), None
“Schematic Trimming Technique for Automatization”, K.K. Kogyo Chosakai Publishing Co. Ltd., Oct. 15, 1994, pp. 47 and 98.

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