Abstract: A shell-integrated fixed scroll includes a cylindrical shell that is integrated with an end plate on which a scroll wrap is erected, and has a proximal end entirely connected with an outer periphery of the end plate and a leading end extending in the axial direction. The wall of the shell partially forms a thick portion having a large thickness from a proximal-end-side end (first) surface to a leading-end-side end (second) surface. In the thick portion, a screw hole for a bolt for fastening a rear housing to the first surface extends from the first surface toward the second surface. A screw hole for a bolt for fastening a front housing to the second surface extends from the second surface toward the first surface. The thick portion is partially cut away in the circumferential direction between the two surfaces to form opposing surfaces facing each other in the axial direction.

Abstract: A soft magnetic powder core which can have a high electrical resistivity, a high magnetic flux density and a high strength easily, and the soft magnetic powder core can be used in various electromagnetic components such as a motor, an actuator, a generator and a reactor. The soft magnetic powder core in which the glass portion is scattered among the soft magnetic particles, the soft magnetic particle having the core particle with iron as the main component and the insulating coating layer containing P, O and Fe. Further, the junction portion with iron oxide as the main component is formed between the soft magnetic particle and the glass portion.

Abstract: A soft magnetic powder core which can have a high electrical resistivity, a high magnetic flux density and a high strength easily, and the soft magnetic powder core can be used in various electromagnetic components such as a motor, an actuator, a generator and a reactor. The soft magnetic powder core in which the glass portion is scattered among the soft magnetic particles, the soft magnetic particle having the core particle with iron as the main component and the insulating coating layer containing P, O and Fe. Further, the junction portion with iron oxide as the main component is formed between the soft magnetic particle and the glass portion.

Abstract: On an outer peripheral portion of a rotor (1), three protrusions are provided per each cylinder. A pickup coil 2 is disposed facing to the outer peripheral portion with a predetermined distance. A rotation signal (S.sub.0) is converted to a rotation signal pulse (S.sub.1) having three pulses (A, B and C) per each cylinder corresponding to the three protrusions. According to the first signal (A) of the rotation signal pulse (S.sub.1) the cranking ignition period (A.sub.1) is determined. According to the second signal (B) of the rotation signal pulse (S.sub.1), the starting timing for flowing current to the ignition coil (8) is decided. According to the third signal (C) of the rotation signal pulse (S.sub.1), the ignition timing at cranking operation is defined by detecting time intervals (3t, t, 2t) between the three signals (A, B, C).