Air conditioner

A variable displacement compressor comprising:

• a discharge chamber;
• a retaining passage, which is connected to the discharge chamber and is located downstream of the discharge chamber;
• a displacement control mechanism, which controls the displacement of the compressor in accordance with the pressure difference between a first pressure monitoring point and a second pressure monitoring point such that the pressure difference seeks a predetermined target value, and the first pressure monitoring point is located in the discharge chamber while the second pressure monitoring point is located in the retaining passage;
• a first pressure introducing passage, which connects the discharge chamber to the displacement control mechanism for supplying the pressure of refrigerant in the discharge chamber from the first pressure monitoring point to the displacement control mechanism;
• a second pressure introducing passage, which connects the retaining passage to the displacement control mechanism for supplying the pressure of refrigerant in the retaining passage from the second pressure monitoring point to the displacement control mechanism, the second pressure introducing passage having an opening to the retaining passage;
• and
• an inlet member, which is located in the retaining passage to cover the opening, wherein the inlet member has a pressure introducing port that functions as the second pressure monitoring point, wherein the pressure of the refrigerant in the retaining passage is supplied from the pressure introducing port to the displacement control mechanism through the second pressure introducing passage.

An air conditioning apparatus provided with a refrigerant circuit that includes a variable displacement compressor, wherein the air conditioner comprises:

• a displacement control mechanism, which controls the displacement of the compressor in accordance with a pressure at a pressure monitoring point in the refrigerant circuit;
• a pressure introducing passage, which connects the refrigerant circuit to the displacement control mechanism for supplying the pressure of the refrigerant in the refrigerant circuit from the pressure monitoring point to the displacement control mechanism, wherein the pressure introducing passage has an opening to the refrigerant circuit;
• an inlet member, which is located at a position corresponding to the opening, wherein the inlet member has a pressure introducing port that functions as the pressure monitoring point, wherein the pressure of the refrigerant in the refrigerant circuit is supplied from the pressure introducing port to the displacement control mechanism through the pressure introducing passage;
• and
• a support portion, which is located in the refrigerant circuit for supporting the inlet member.

An air conditioning apparatus provided with a refrigerant circuit that includes a variable displacement compressor, wherein the air conditioner comprises:

• a displacement control mechanism, which controls the displacement of the compressor in accordance with a pressure at a pressure monitoring point in the refrigerant circuit;
• a pressure introducing passage, which connects the refrigerant circuit to the displacement control mechanism for supplying the pressure of the refrigerant in the refrigerant circuit from the pressure monitoring point to the displacement control mechanism, wherein the pressure introducing passage has an opening to the refrigerant circuit;
• and
• an inlet member, which is located at a position corresponding to the opening, wherein the inlet member has a pressure introducing port that functions as the pressure monitoring point, wherein the pressure of the refrigerant in the refrigerant circuit is supplied from the pressure introducing port to the displacement control mechanism through the pressure introducing passage,
• wherein the inlet member has a linear axial line that is connected to the opening of the pressure introducing passage and a linear radial line that extends radially from the axial line, and the pressure introducing port is formed at an end of the radial line.

An air conditioning apparatus provided with a refrigerant circuit that includes a variable displacement compressor, wherein the air conditioner comprises:

• a displacement control mechanism, which controls the displacement of the compressor in accordance with a pressure at a pressure monitoring point in the refrigerant circuit;
• a pressure introducing passage, which connects the refrigerant circuit to the displacement control mechanism for supplying the pressure of the refrigerant in the refrigerant circuit from the pressure monitoring point to the displacement control mechanism, wherein the pressure introducing passage has an opening to the refrigerant circuit;
• and
• an inlet member, which is located at a position corresponding to the opening, wherein the inlet member has a pressure introducing port that functions as the pressure monitoring point, wherein the pressure of the refrigerant in the refrigerant circuit is supplied from the pressure introducing port to the displacement control mechanism through the pressure introducing passage,
• wherein the pressure monitoring point is located in the compressor.

An air conditioning apparatus provided with a refrigerant circuit that includes a variable displacement compressor, wherein the air conditioner comprises:

• a displacement control mechanism, which controls the displacement of the compressor in accordance with a pressure at a pressure monitoring point in the refrigerant circuit;
• a pressure introducing passage, which connects the refrigerant circuit to the displacement control mechanism for supplying the pressure of the refrigerant in the refrigerant circuit from the pressure monitoring point to the displacement control mechanism, wherein the pressure introducing passage has an opening to the refrigerant circuit;
• and
• an inlet member, which is located at a position corresponding to the opening, wherein the inlet member has a pressure introducing port that functions as the pressure monitoring point, wherein the pressure of the refrigerant in the refrigerant circuit is supplied from the pressure introducing port to the displacement control mechanism through the pressure and wherein the inlet member is located in the compressor.

An air conditioning apparatus provided with a refrigerant circuit that includes a variable displacement compressor, wherein the air conditioner comprises:

• a displacement control mechanism, which controls the displacement of the compressor in accordance with a pressure at a pressure monitoring point in the refrigerant circuit;
• a pressure introducing passage, which connects the refrigerant circuit to the displacement control mechanism for supplying the pressure of the refrigerant in the refrigerant circuit from the pressure monitoring point to the displacement control mechanism, wherein the pressure introducing passage has an opening to the refrigerant circuit;
• and
• an inlet member, which is located at a position corresponding to the opening, wherein the inlet member has a pressure introducing port that functions as the pressure monitoring point, wherein the pressure of the refrigerant in the refrigerant circuit is supplied from the pressure introducing port to the displacement control mechanism through the pressure introducing passage,
• wherein the inlet member is arranged to be capable of altering the direction of the pressure introducing port.