Linear electrical machine
AssigneeLibertine FPE Ltd
InventorsSamuel Cockerill, Edward Haynes
Life of this patent
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Abstract
A linear electrical machine (LEM) comprising: at least one stator mounted in a housing, the housing and stator defining a working cylinder; a two-section central core within the working cylinder, wherein the two sections of the core are co-axial, separate and cantilever mounted within the working cylinder, a cylindrical stator bore cavity between the working cylinder and the two central core sections; and one or more hollow translators, each translator being axially movable within the stator bore cavity, such that each section of the central core is traversed by part of the one or more translators, thereby forming an exterior magnetic circuit airgap between the respective translator and stator.
Claims21
A linear electrical machine (LEM) comprising:
- at least one stator mounted in a housing, the housing and the at least one stator defining a working cylinder;
- a two-section central core within the working cylinder, wherein the two sections of the core are co-axial, separate and cantilever mounted within the working cylinder, wherein the central core is fixed at least axially relative to the stator within the working cylinder;
- a cylindrical stator bore cavity between the working cylinder and the two central core sections;
- one or more hollow cylindrical translators, each hollow cylindrical translator being axially movable within the stator bore cavity, such that each section of the central core is traversed by part of the one or more hollow cylindrical translators, thereby forming an exterior magnetic circuit airgap between respective translator and stator;
- one or more fluid bearings between a section of the central core and the one or more hollow cylindrical translators, wherein at least one of the fluid bearings is mounted on the central core and runs on a bearing surface formed on a part of an interior of the one or more hollow cylindrical translators;
- and
- one or more bearing journals provided on at least one internal surface of the one or more hollow cylindrical translators.
Dependencies are inferred from the claim text.