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Generator for a windmill, stator module for use in such a generator and use of such a generator

  • US 6,781,276 B1
  • Filed: 10/01/2001
  • Issued: 08/24/2004
  • Est. Priority Date: 12/15/1998
  • Status: Expired due to Term
First Claim
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1. Generator, preferably for a windmill and especially of the kind driven directly by the rotor of the windmill without any gearbox (5) installed between the rotor and the generator, wherein at least the stator of the generator (12) is made with at least two modules (20) which are fully enclosed and sealed, and that these at least two modules (20) may be mounted and dismantled independently of each other one or more at a time without dismantling the entire winding (25), characterised in that each single stator module (20) is individually contained in an enclosure (23) with a degree of sealing substantially corresponding to the degree of sealing which is desired in the finished generator (12), and that a given number of juxtaposed enclosures (23) abutting on each other form a closed ring of stator modules (20), and wherein the width of the air gap (A) between the rotor and the stator may be adjusted individually for each stator module (20) and independently of each other by suitable adjusting shims (26), by adjusting a distance between an outer periphery (d) of the stator structure and an inner periphery (D) of a given stator module (20).

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