IP Library Granted Patent US 12680532
Granted Patent B2
US 12680532 · App. 18/865,352 · Granted Jul 14, 2026

Space-saving housing mounting

Inventors: Warren Smook (Huldenberg, BE); Sven Moers (Westerlo, BE); Alf Trede (Immenstedt, DE)
Assignees: ZF FRIEDRICHSHAFEN AG; ZF WIND POWER ANTWERPEN N.V.
F03D15/10F03D80/703F16H57/025F05B2240/14F05B2240/90F05B2260/301F16H2057/02078
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Quick Facts
Patent No.
US 12680532
App. No.
18/865,352
Granted
Jul 14, 2026
Kind
B2
Abstract

A housing for a wind turbine gearbox, including at least two bolt eyes for receiving a respective bolt for fixing a housing in a nacelle-fixing means. In each case two bolt eyes are mirror-symmetrical to each other with respect to a first longitudinal plane. The bolt eyes are arranged entirely on a same side of a second longitudinal plane which runs orthogonally to the first longitudinal plane.

Claims (33)

1 . A housing for a wind turbine gearbox, comprising:

at least two bolt eyes for receiving a respective bolt for fixing the housing in a nacelle-fixing means;

a housing wall having at least two support arms; and

at least two bolt receptacles, each having one of the at least two bolt eyes, the at least two bolt receptacles being physically separate from the housing wall,

wherein in each case, the at least two bolt eyes are mirror-symmetrical to each other with respect to a first longitudinal plane,

wherein the bolt eyes are arranged entirely on a same side of a second longitudinal plane which runs orthogonally to the first longitudinal plane, and

wherein the at least two support arms are offset from one another in a longitudinal direction of the wind turbine gearbox.

2 . The housing according to claim 1 , wherein central axes of the bolt eyes each run parallel to the first longitudinal plane and/or the second longitudinal plane.

3 . The housing according to claim 2 , wherein the central axes of the bolt eyes each extend parallel to the first longitudinal plane and the second longitudinal plane, and

wherein a distance between the central axes and the first longitudinal plane is not greater than twice a distance from the central axes to the second longitudinal plane.

4 . The housing according to claim 2 , wherein a distance between the central axes of the bolt eyes and the second longitudinal plane is not greater than twice a distance between the center axes of the bolt eyes and the first longitudinal plane.

5 . The housing according to claim 1 , wherein:

the at least two support arms each have one of the at least two bolt receptacles, and

the bolt receptacles are each configured as pieces that are physically separate from a respective support arm.

6 . The housing according to claim 1 , wherein the at least two bolt receptacles are offset from the nacelle-fixing means so as to form a gap between each bolt receptacle and the nacelle-fixing means.

7 . The housing according to claim 6 , wherein the nacelle-fixing means includes half-shells configured to receive the at least two bolts, and wherein the gap between each bolt receptacle and the nacelle-fixing means is between each of the at least two bolts and each half-shell of the nacelle-fixing means.

8 . A method for assembling the housing according to claim 1 , wherein the at least two bolt receptacles are first fixed in the nacelle-fixing means by a respective bolt and subsequently joined to the housing wall.

9 . A housing for a wind turbine gearbox, comprising:

at least two bolts for fixing the housing in a nacelle-fixing means, wherein the at least two bolts are mirror-symmetrical relative to a first longitudinal plane, and wherein at least two bolt receptacles are formed, a first of the at least two bolt receptacles being monolithically formed as part of a first of the at least two bolts and a second of the at least two bolt receptacles being monolithically formed as part of a second of the at least two bolts; and

a housing wall,

wherein the at least two bolts are arranged entirely on a same side of a second longitudinal plane which runs orthogonally to the first longitudinal plane, and

wherein the at least two bolt receptacles are physically separate pieces from the housing wall and are joined to the housing wall.

10 . A housing for a wind turbine gearbox, comprising:

at least two bolt eyes for receiving a respective bolt for fixing the housing in a nacelle-fixing means;

a housing wall having at least two support arms, each of which includes one of the at least two bolt eyes; and

at least two bolt receptacles, each having one of the at least two bolt eyes,

wherein in each case two bolt eyes are mirror-symmetrical to each other with respect to a first longitudinal plane,

wherein the bolt eyes are arranged entirely on a same side of a second longitudinal plane which runs orthogonally to the first longitudinal plane,

wherein the at least two bolt receptacles are each formed in two pieces that are each configured to receive the respective bolt, and

wherein one piece of the two pieces of each of the at least two bolt receptacles is integrally connected to a housing wall.

11 . The housing according to claim 10 , wherein the two pieces of each of the at least two bolt receptacles comprise an upper piece and a lower piece, each of the upper pieces being integrally connected to the housing wall.

12 . The housing according to claim 11 , wherein each upper piece includes curved recesses arranged on opposite longitudinal ends of the respective upper piece such that a cross-section of the upper piece forms an I-beam shape.

13 . The housing according to claim 12 , wherein each curved recess has a curvature that follows a circumferential periphery of a respective bolt eye.