Gaseous coolant piston compression with improved start lubrication

摘要

The piston compressor has connecting systems/inlet channels (30,30a). Pressure is manufactured in a suction chamber (19) for gaseous refrigerant in a oil suction chamber (22). During the start-up phase of the compressor, oil grease is conveyed from an oil sump (8) to the oil suction chamber. The housing (5,6) may comprise of an pump chamber (20) and that an oil pump, which may be a cycloid gear wheel pump, is defined around the pump chamber and an oil outlet chamber (23), and which comprises of an outer wall. An inner gear wheel (21a) which kick starts from a drive shaft (9) to cause rotational movement. An outer gear wheel (21b), which is keyed to the inner gear wheel, is driven to cause rotational movement along the length of the inner face of the pump chamber.