Abstract: Disclosed are a gas compressor and an air conditioning system in which an anomalous temperature rise in an electro-magnetic clutch is detected at an early stage to stop the operation of the gas compressor. A temperature sensor is mounted at a position in the vicinity of a portion of the electro-magnetic clutch which is subject to anomalous heat generation. When there is a rise in the temperature as detected by the temperature sensor, a driving circuit of the electro-magnetic clutch is interrupted before trouble is caused by an abnormally high temperature.

Abstract: To provide a gas compressor in which fretting wear due to vibration of an oil separation filter is prevented to thereby achieve an improvement in durability. A gas compressor is provided with a press-fixing unit for press-fixing end portions of an oil separation filter.

Abstract: To provide a gas compressor in which a gas leakage from compression chambers is suppressed to thereby make it possible to enhance compressor characteristics such as a volumetric efficiency. A seal member is interposed between a cylinder of a gas compressor and two side blocks for sealing both end faces of the cylinder, and the seal member is arranged at a position for separating inside and outside of the cylinder so as to surround an opening of a hollow portion of the cylinder. The end face of the cylinder is brought into intimate contact with the end surface of a rear side block or a front side block. Then, the confronting surfaces of the two members are brought into intimate contact with each other to form a close contact portion.

Abstract: An air conditioning compressor is equipped with an oil separator for separating high-pressure refrigerant gas and lubrication oil into a gas component and an oil component. The compressor's casing has a barrel portion surrounding an outer portion of the compressor and an enlarged case potion extending from the barrel portion. The enlarged case portion has a discharge chamber disposed between an inner surface of the casing and a rear portion of the compressor for temporarily holding the gas component and the oil component. An oil sump within the discharge chamber is dimensioned to store a sufficient amount of the oil component to suppress an increase in the oil circulation ratio of an air conditioning system while maintaining a sufficient amount of the lubrication oil in the compressor casing to lubricate the compressor.

Abstract: Disclosed are a gas compressor and an air conditioning system in which an anomalous temperature rise in an electromagnetic clutch is detected at an early stage to stop the operation of the gas compressor. A temperature sensor is mounted at a position in the vicinity of a portion of the electro-magnetic clutch which is subject to anomalous heat generation. When there is a rise in the temperature as detected by the temperature sensor, a driving circuit of the electro-magnetic clutch is interrupted before trouble is caused by an abnormally high temperature.