| 摘要 |
<p>PURPOSE: An apparatus for simultaneous circumferential inductive hardening is provided for rotating and simultaneous hardening by electric induction of bearing surfaces (2a; 3a) for reciprocating pistons. CONSTITUTION: Each inductor has at least two or more legs (12, 13; 14, 15) parallel to each other and located past the curvature of the bearing surfaces (2, 3), one leg being situated on the side of the overlapping area (5) of the reciprocating pistons (2b; 3b) and the other linked to the edging area (2b; 3b) of the reciprocating piston (2, 3) assigned thereto. The legs (12, 13; 14, 15) of each inductor (10, 11) on the axis are separated (A) by a space larger than half the total width (B)of the reciprocating pistons (2; 3). The inventive device is characterized in that the inductors (10; 11) encompass the reciprocating pistons (2, 3) from virtually the same direction and that the area where the inductor leg (12, 13; 14) spacing is wider is limited to the section (12c; 14c) of the inductor leg (12; 14) on the overlapping side (5) which does not cross, in any rotating position of the operating shaft (1), the corresponding section (24c; 12c) of the inductor leg associated with the overlapping area (5) of any other inductor (11; 10).</p> |
