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Patent Searching and Data


Title:
ELECTROMAGNETIC PUMP CORE AND MANUFACTURE THEREOF
Document Type and Number:
Japanese Patent JPH0787723
Kind Code:
A
Abstract:

PURPOSE: To improve a space factor of a core by circumferentially laminating metal magnetic steel plates bent in an arc state and molded, and so forming it that its lateral section becomes a ring state.

CONSTITUTION: A core is formed by laminating core pieces 1 formed by bending metal magnetic thin plates in an arc state and molding and so forming it that its lateral section becomes a ring state. In this case, a circumferential length component per one piece 1 is its thickness itself at an inner periphery r=r1, increased at a position of a radius (r) to (thickness × secθ) so that, when the radius (r) is increased, secθ becomes large and even if a thickness is constant, the difference of a perimeter is corrected by providing an angle. Thus, since a ringlike core having no space and large space factor can be formed, an electromagnetic pump can be reduced in size and enhanced in performance.


Inventors:
Yagisawa, Takeshi
Katsuki, Kenji
Application Number:
JP1993000230684
Publication Date:
March 31, 1995
Filing Date:
September 17, 1993
Export Citation:
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Assignee:
TOSHIBA CORP
International Classes:
H02K44/06; (IPC1-7): H02K44/06
Attorney, Agent or Firm:
則近 憲佑