Piston engine having magnetic piston bearing

US8978595B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8978595-B2
Application numberUS-201013394254-A
CountryUS
Kind codeB2
Filing dateAug 26, 2010
Priority dateSep 3, 2009
Publication dateMar 17, 2015
Grant dateMar 17, 2015

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Abstract

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A piston engine has a housing and a piston. The piston is magnetically and movably disposed in the housing. A device for magnetically supporting the piston is fixedly mounted relative to the housing. A linear machine in conjunction with the magnetic bearing of the piston can prevent friction and thus result in a machine for converting mechanical into electric energy without having to lubricate and with reduced mechanical effort.

First claim

Opening claim text (preview).

The invention claimed is: 1. A free piston engine that is a combustion engine or Stirling engine, comprising: a first piston; a first housing at least partially enclosing the first piston; an electromagnetic linear machine configured to generate electrical energy from movement of the piston; and a support device to magnetically support the first piston in a movable manner in the first housing by producing a magnetic field that interacts with the first piston, the support device com…

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What does patent US8978595B2 cover?
A piston engine has a housing and a piston. The piston is magnetically and movably disposed in the housing. A device for magnetically supporting the piston is fixedly mounted relative to the housing. A linear machine in conjunction with the magnetic bearing of the piston can prevent friction and thus result in a machine for converting mechanical into electric energy without having to lubricate …
Who is the assignee on this patent?
Klöpzig Markus, Siemens Ag
What technology area does this patent fall under?
Primary CPC classification F02B71/00. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Mar 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).