Patent ID: 6283739
Filing Date: 2001-09-04
Classification: F04C,F16J

Abstract:
A steam screw machine comprising a casing drive and driven screws in a linkage in said casing, shafts of said screws placed in bearings, output and synchronizing transmissions, by which the drive screw is connected to an output shaft, and said drive and driven screws are connected together, inlet and outlet branch pipes for feed and discharge of steam, a cylinder for compensation in the bearings of axial forces developed by screws including a piston connected to shaft of the drive screw, a greasing system of the bearings and the transmissions, the output and synchronizing transmission being located on opposite sides of the screws, the inlet branch pipe and cylinder being connected to a source of steam, a device for equilibration of jet gains forces developed in the bearings from the screws, separators for the steam and oil placed on the shafts between the screws and the bearings, said device for equilibration of jet forces in the bearings comprising a space formed between the drive shaft and the casing and connected at one side to a the source a steam, and at the other side to throttling channels connected to the outlet branch pipe, the space being provided in the casing along a lateral area of the shaft at a site located opposite a direction of steam flow said separators of steam and oil including means for discharging steam and oil.