The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 27, 2005
Filed:
Mar. 29, 2004
Janusz P. Goldasz, Cracow, PL;
Zbigniew W. Szklarz, Zator, PL;
Alexander A. Alexandridis, Orchard Lake Village, MI (US);
Thomas W. Nehl, Shelby Township, MI (US);
Fang Deng, Novi, MI (US);
Olivier Valee, Paris, FR;
Janusz P. Goldasz, Cracow, PL;
Zbigniew W. Szklarz, Zator, PL;
Alexander A. Alexandridis, Orchard Lake Village, MI (US);
Thomas W. Nehl, Shelby Township, MI (US);
Fang Deng, Novi, MI (US);
Olivier Valee, Paris, FR;
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A high-performance piston core including a first piston cylinder and a second piston cylinder, with a piston center longitudinally disposed between and magnetically coupling the first piston cylinder and the second piston cylinder. The piston center is made of high-performance magnetic material, such as Cobalt steel (CoFe), Silicon steel (SiFe), Vanadium/Cobalt steel (Permendur), alloys thereof, or the like. The high-performance magnetic materials exhibit high magnetic permeability and reduce the magnetic reluctance of flux bottlenecks. In addition, high-performance magnetic materials typically saturate at a higher flux density than the conventional magnetic materials. The first piston cylinder and the second piston cylinder can be made of conventional magnetic material, such as low-carbon steel. The first piston cylinder can include a ring disposed about an end, where the end is longitudinally attached and magnetically coupled to the piston center.