Title:
THRUST CONTROLLER FOR EXHAUST TURBINE SUPERCHARGER
Document Type and Number:
Japanese Patent JPS60162002
Kind Code:
A
Abstract:
PURPOSE:To reduce the pressure-receiving area of a bearing, by connecting the space on the back of the impeller of a compressor to the atmosphere through a control valve, connecting the space on the compressor-facing side of a turbine disk to that on the discharge side of the compressor through a control valve, and connecting the space on the opposite-the-compressor side of the disk to a gas outlet port through a control valve. CONSTITUTION:A rotor shaft 13 is supported halfway by thrust bearings 23, 24. An enclosed chamber C on the back of the impeller 1 of a compressor is connected to the atmosphere through a control valve 43. An enclosed chamber A on the side of a turbine disk 12 in the face of the compressor is connected to the discharge side 37 of the compressor through a control valve 45. An enclosed chamber B on the side of the disk 12 opposite the compressor is connected to a gas outlet port 40 through a control valve 47. The axial position of the rotor shaft 13 is detected by axial position gauges 49, 50 to control the degrees of opening of the control valves 43, 45, 47 depending on the deviation of the axial position of the rotor shaft. The thrust of the shaft 13 is thus minimized, so that the pressure-receiving area of each thrust bearing can be reduced.
Inventors:
NARUSUE SHIGETOSHI
Application Number:
JP1611284A
Publication Date:
August 23, 1985
Filing Date:
February 02, 1984
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
F01D3/00; F01D3/04; F02B39/00; (IPC1-7): F01D3/00; F02B37/00
Attorney, Agent or Firm:
Kimura Masami