Oil separator with integrated muffler

An oil separator, comprising:

• an inlet configured to receive a refrigerant;
• a duct through which the refrigerant flows, the duct having a circumferential wall and comprising:
• a first section comprising a first muffler adjacent to the inlet, the first muffler comprising a chamber defined by a first wall of the first section and designed to have a length dimension in a length direction of the duct and a depth dimension intersecting the length dimension;
• and
• a second section downstream of the first section, a second circumferential wall of the second section being provided with a second muffler;
• and
• an oil separation assembly through which the refrigerant passing through the duct passes;
• wherein the duct has a section through which the refrigerant passes, and the depth dimension is set to be larger than a geometrical dimension of the section such that the chamber forms at least one expansion chamber which extends radially from the wall of the duct in the first section.

An oil separator, comprising:

• an inlet configured to receive a refrigerant;
• a duct through which the refrigerant flows, the duct having a circumferential wall and comprising:
• a first section comprising a first muffler adjacent to the inlet, the first muffler comprising a chamber defined by a first wall of the first section and designed to have a length dimension in a length direction of the duct and a depth dimension intersecting the length dimension;
• and
• a second section downstream of the first section, a second circumferential wall of the second section being provided with a second muffler;
• and
• an oil separation assembly through which the refrigerant passing through the duct passes;
• wherein the duct and the inlet each have an axis in a same direction, and the refrigerant enters the oil separator along the axis;
• a radial dimension of the chamber is the depth dimension, and a distance from the first wall to the axis is greater than a distance from the second wall to the axis.

An oil separator, comprising:

• an inlet configured to receive a refrigerant;
• a duct through which the refrigerant flows, the duct having a circumferential wall and comprising:
• a first section comprising a first muffler adjacent to the inlet, the first muffler comprising a chamber defined by a first wall of the first section and designed to have a length dimension in a length direction of the duct and a depth dimension intersecting the length dimension;
• and
• a second section downstream of the first section, a second circumferential wall of the second section being provided with a second muffler;
• and
• an oil separation assembly through which the refrigerant passing through the duct passes;
• wherein the duct and the inlet each have an axis in a same direction, and the refrigerant enters the oil separator along the axis;
• the chamber comprises:
• a first space, which is provided with a separation plate in a direction of a flow path of the refrigerant and having a first length dimension;
• a second space downstream of the first space, the second space having a second length dimension;
• and
• a connection passage between the first space and the second space, via which the refrigerant flows from the first space to the second space,
• a distance from the first wall to the axis is greater than a distance from the second wall to the axis.