Information

For Designing this Model I have used the following steps:

Sketch 1:

1) Rectangle

2) Fillet 

3) Equal distance chamber

4) Line

Revolve:

Two side each side with 100 angle around the Vertical line.

Sketch 2:

Control Point Spline

Sweep 1:

sweep the object with spline 

Sweep 2:

sweep the object with spline with join function to join the two objects

Final Model:

changing from Design to Render