Patent ID: 8146320
Filing Date: 2012-04-03
Classification: E04H,F03D,F05B,Y02E

Abstract:
1. A tower of a wind energy turbine, comprising: a first conical tower segment comprising a steel tube having a predetermined length; a second conical tower segment comprising a steel tube having a predetermined length, wherein the first conical tower segment is directly coupled to the second conical tower segment in an assembled condition, the diameter of the first conical tower segment at a lower end being equal to the diameter of the second conical tower segment at an upper end; a first cylindrical tower segment comprising a single steel tube having a length between a predetermined minimum length and a predetermined maximum length, wherein the second conical tower segment is directly coupled to the first cylindrical tower segment in the assembled condition, the diameter of the second conical tower segment at a lower end being equal to the diameter of the first cylindrical tower segment; and a further tower segment comprising prestressed-concrete having a door opening, wherein the first cylindrical tower segment is coupled to the further tower segment in the assembled condition, the diameter of the first cylindrical tower segment being equal to the diameter of the further tower segment at an upper end, wherein the first and second conical tower segments each have a wall thickness decreasing towards their upper ends in an installed condition of the tower.