Title:
無潤滑ねじロータ装置
Document Type and Number:
Japanese Patent JP4121247
Kind Code:
B2
Abstract:
The invention relates to a rotary screw machine that is completely oil-free. Known rotary screw machines with cooling, sealing, lubrication of the screw rotors and oil-lubrication and oil-cooling of the bearings have been replaced with water-lubricated and water-cooled bearings.Each screw rotor (102) is mounted in a water-lubricated radial slide bearing (1) and one trunnion (31) of the rotor co-acts with a water-lubricated thrust bearing (9, 10) which acts both as an hydrodynamic and an hydrostatic bearing. The trunnion bearing housing (21) is in fluid connection with the rotor housing, both along the trunnion and via a conduit (27) from the bearing housing interior to the gas inlet (108) of the screw rotor or via a channel which is cut-off from said inlet.
Inventors:
Carlis, Tameska
Sandstorm, Matsu
Sandstorm, Matsu
Application Number:
JP2000510980A
Publication Date:
July 23, 2008
Filing Date:
June 17, 1998
Export Citation:
Assignee:
Svenska Rottaa Maschinaa Activolag
International Classes:
F04C18/16; F04C29/00; F04C27/00; F04C29/02; F04C29/04; F16C32/06; F16C33/10; F16C37/00
Attorney, Agent or Firm:
Takao Hamano
Morita Tetsuji
Morita Tetsuji