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Patent Searching and Data


Title:
MAGNETIC RECIPROCATING MOVING FLUID DEVICE
Document Type and Number:
WIPO Patent Application WO/2007/049583
Kind Code:
A1
Abstract:
A high-efficiency magnetic reciprocating moving fluid device. Magnetic pole members (10, 12) to which induction coils (16, 18) are fitted are arranged oppositely on the opposite sides of a magnetic armature (56) coupled with the end of a piston reciprocating in a cylinder. The magnetic armature (56) has arcuate side faces (56a, 56a) facing the opposing surfaces (10a, 12a) of the magnetic pole members (10, 12), and an outer circumferential surface consisting of planes (56b, 56b) between the side faces. Since the planes (56b, 56b) are provided, intervals of the side faces (56a, 56a) facing the magnetic pole members can be increased as compared with a tubular one without increasing the weight and thereby an induction coil where copper loss is reduced by increasing the amount of copper used can be set to the magnetic pole member.

Inventors:
SAKURAI HIROTO (JP)
NAKAO HARUKI (JP)
Application Number:
PCT/JP2006/321109
Publication Date:
May 03, 2007
Filing Date:
October 24, 2006
Export Citation:
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Assignee:
NITTO KOHKI CO (JP)
SAKURAI HIROTO (JP)
NAKAO HARUKI (JP)
International Classes:
F04B17/04; F04B35/04; H02K33/02
Foreign References:
JPS4117968Y1
JPH0479975U1992-07-13
Other References:
See also references of EP 1950415A4
None
Attorney, Agent or Firm:
ITOH, Shigeru (4-8 Akasaka 1-chom, Minato-ku Tokyo 52, JP)
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