ApplicationNo. 05/682295 filed on 05/03/1976
US Classes:418/84, With condition responsive control of non-working fluid184/6.16, Rotary compressor417/228, WITH CONDITION RESPONSIVE CONTROL OF COOLANT OR LUBRICANT418/100, Intermixed incoming working and non-working fluids418/85, With heat exchange means for non-working fluid418/87, Valve regulated non-working fluid418/88, With pump for non-working fluid418/97Non-working and working fluids intermix in working chamber
ExaminersPrimary: Vrablik, John J.
Attorney, Agent or Firm
International ClassF04C 29/00 (20060101)
AbstractA compressor capacity control and lubrication system including a nonmodulating capacity regulator for an oil flooded gas compressor such as a rotary screw compressor. The system includes an on-off intake regulator. The lubrication system insures sufficient supply of cooling and sealing lubrication when the machine is operating at loaded conditions and a limited quantity of cooling lubrication when the machine is operating at unloaded conditions. This is accomplished by the use of a pair of gas-liquid reservoirs. One of the reservoirs is vented to atmosphere during unloaded operation of the compressor. Lubricant is supplied from both reservoirs to the compressor when the machine is operating at loaded conditions, but only one of the reservoirs when operating at unloaded conditions.