Stepped parting joint on a transmission housing of a fluid machine

1. A divisible housing of a fluid machine for a transmission receivable in the divisible housing and having a large wheel and at least two pinion shafts which are in engagement with the large wheel, the divisible housing comprising:

a first housing element; and

a second housing element connected to the first housing element via a single continuous parting joint,

wherein the at least two pinion shafts being receivable in the parting joint,

wherein the parting joint includes a parting joint jump, which forms two different horizontal levels in the parting joint,

wherein the parting joint provides a continuous mating of the first housing element and the second housing element

wherein the at least two pinion shafts are receivable in the parting joint on both sides of the parting joint jump at the two different horizontal levels, and

wherein the at least two different horizontal levels each lie at different vertical heights from one another.

2. The divisible housing of a fluid machine as claimed in claim 1 ,

wherein the first housing element and the second housing element each include a step corresponding to one another and forming the parting joint jump.

3. The divisible housing of a fluid machine as claimed in claim 2 ,

wherein the first housing element and the second housing element are a top box and a parting joint cover, respectfully, of the transmission housing, or

wherein the first housing element and the second housing element are aligned or centered with one another via a plurality of step faces, offset vertically to one another, of the step forming the parting joint jump.

4. The divisible housing of a fluid machine as claimed in claim 1 ,

wherein the transmission is received in the divisible housing, the at least two pinion shafts being received in the parting joint on both sides of the parting joint jump.

5. The divisible housing of a fluid machine as claimed in claim 4 , wherein one axis of rotation of two axes of rotation of the at least two pinion shafts is arranged above an axis of rotation of the large wheel in the divisible housing.

6. The divisible housing of a fluid machine as claimed in claim 1 , wherein the first housing element and the second housing element are pinned to one another and screwed to one another.

7. The divisible housing of a fluid machine as claimed in claim 1 , wherein the first housing element and the second housing element are pinned to one another or screwed to one another.

8. The divisible housing of a fluid machine as claimed in claim 1 , wherein the divisible housing further includes a third housing element which is connected to the first housing element or to the second housing element via a further parting joint.

9. The divisible housing of a fluid machine as claimed in claim 8 ,

wherein the transmission includes at least two further pinion shafts which are in engagement with the large wheel or with a further large wheel, and

wherein the large wheel or the further large wheel and the at least two further pinion shafts being arranged in the further parting joint.

10. The divisible housing of a fluid machine as claimed in claim 1 ,

wherein the first housing element and the second housing element are a top box and a parting joint cover, respectfully, of the transmission housing, and

wherein the first housing element and the second housing element are aligned and centered with one another via a plurality of step faces, offset vertically to one another, of a step forming the parting joint jump.

11. The divisible housing of a fluid machine as claimed in claim 1 , wherein the parting joint is sealed off, using a sealing lens arranged over the parting joint jump.

12. The divisible housing of a fluid machine as claimed in claim 1 , wherein the transmission is a transmission of a turbine, turbocompressor, multistage transmission compressor or pump.