![]() ![]() 3, the constitution is identical to that of FIG. 3, there is shown another embodiment of the present invention. Consequently, while the movable member 6 is reciprocating, the permanent magnets 5 are moved always oppositely facing to the magnetic poles 8, so that the magnetic resistance between the permanent magnets 5 and the magnetic poles 8 is kept constant and variation of the magnetic energy stored in the air gap is also so small that cogging force is likewise small. The length of each magnetic pole 8 is selected to be 80% to 95% of that of each permanent magnet. The small clearances defined between each magnetic pole 8 will be located substantially at central position of each permanent magnet 5 when the generator is at the neutral position and the opposite ends of each permanent magnet 5 is located substantially at the central position of each magnetic pole 8. And the overall length of the permanent magnet 5 is shorter by the reciprocation stroke of the movable member 6 than the overall length of the magnetic poles 8. The number of the magnetic poles 8 is more than that of the permanent magnets 5 by one. H02K35/02- Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systemsĪ plurality of magnetic poles 8 are so disposed that they are spaced from but facing opposedly to said permanent magnets.H02K35/00- Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit.H02- GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER.238000006011 modification reaction Methods 0.000 description 2.XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical group XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2.238000006073 displacement reaction Methods 0.000 description 6.230000001264 neutralization Effects 0.000 claims description 4.239000000696 magnetic material Substances 0.000 claims description 10.Assignors: HAMAJIMA, TAKANORI, INAGUMA, YUKIO Application granted granted Critical Publication of US4924123A publication Critical patent/US4924123A/en Anticipated expiration legal-status Critical Status Expired - Fee Related legal-status Critical Current Links ![]() Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority claimed from JP62-318506 external-priority Application filed by Aisin Seiki Co Ltd, Toyota Central R&D Labs Inc filed Critical Aisin Seiki Co Ltd Assigned to AISIN SEIKI KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO reassignment AISIN SEIKI KABUSHIKI KAISHA ASSIGNMENT OF ASSIGNORS INTEREST. Original Assignee Aisin Seiki Co Ltd Toyota Central R&D Labs Inc Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number US07/285,666 Inventor Takanori Hamajima Yukio Inaguma Current Assignee (The listed assignees may be inaccurate. Google Patents US4924123A - Linear generatorÄownload PDF Info Publication number US4924123A US4924123A US07/285,666 US28566688A US4924123A US 4924123 A US4924123 A US 4924123A US 28566688 A US28566688 A US 28566688A US 4924123 A US4924123 A US 4924123A Authority US United States Prior art keywords permanent magnets magnetic poles linear generator shaft magnetic Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
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