Abstract: A compressor uses a refrigerant containing R1123 (1,1,2-trifluoroethylene) as a working fluid, and uses a polyol ester oil as a compressor lubricating oil. In addition, a fixed scroll and a revolving scroll each having a spiral lap rising from an end plate, and a compression chamber which is formed by meshing the fixed scroll and the revolving scroll, are provided. In addition, a discharge hole which is provided at a center position of the end plate of the fixed scroll, and is open to a discharge chamber, a bypass hole which is provided in the end plate of the fixed scroll, and communicates with the compression chamber and the discharge chamber at a timing different from a timing at which the compression chamber communicates with the discharge hole, and a check valve which is provided in the bypass hole, and allows a flow from the compression chamber side to the discharge chamber side.

Abstract: A compressor uses a refrigerant containing R1123 (1,1,2-trifluoroethylene) as a working fluid, and uses a polyol ester oil as a compressor lubricating oil. In addition, a fixed scroll and a revolving scroll each having a spiral lap rising from an end plate, and a compression chamber which is formed by meshing the fixed scroll and the revolving scroll, are provided. In addition, a discharge hole which is provided at a center position of the end plate of the fixed scroll, and is open to a discharge chamber, a bypass hole which is provided in the end plate of the fixed scroll, and communicates with the compression chamber and the discharge chamber at a timing different from a timing at which the compression chamber communicates with the discharge hole, and a check valve which is provided in the bypass hole, and allows a flow from the compression chamber side to the discharge chamber side.

Abstract: A compressor uses a refrigerant containing R1123 (1,1,2-trifluoroethylene) as a working fluid, and uses a polyvinyl ether oil as a compressor lubricating oil. In addition, a fixed scroll (12) and a revolving scroll (13) each having a spiral lap rising from an end plate, and a compression chamber (15) which is formed by meshing the fixed scroll (12) and the revolving scroll (13), are provided. In addition, a discharge hole (18) which is provided at a center position of the end plate of the fixed scroll (12), and is open to a discharge chamber (31), a bypass hole (68) which is provided in the end plate of the fixed scroll (12), and communicates with the compression chamber (15) and the discharge chamber (31) at a timing different from a timing at which the compression chamber (15) communicates with the discharge hole (18), and a check valve which is provided in the bypass hole (68), and allows a flow from the compression chamber (15) side to the discharge chamber (31) side.

Abstract: Hindered amines useful as ashless TBN sources for lubricating oil compositions that are compatible with fluoroelastomeric engine seal materials, and lubricating oil compositions containing such compounds.

Abstract: The present invention describes an improved lubricant composition comprising a particularly effective combination of components comprising ashless antiwear and rust inhibitor additives with an antioxidant liquid mixture formed by reacting an olefin with a mixture of diphenylamines and phenothiozines.

Abstract: The present invention describes an improved lubricant composition comprising a particularly effective combination of components comprising ashless antiwear and rust inhibitor additives with an antioxidant liquid mixture formed by reacting an olefin with a mixture of diphenylamines and phenothiozines.

Abstract: The invention relates to a lubricating oil composition having improved antioxidant properties, and which contains a molybdenum compound and an alkylated phenothiazine. Further, it may also include a secondary diarylamine, preferably an alkylated diphenylamine. This combination of additives provides improved oxidation control and friction modifier performance to the lubricating oil. The composition is particularly suited for use as a crankcase lubricant, or a transmission lubricant, including low levels and zero levels of phosphorus.

Abstract: The invention relates to a lubricating oil composition having improved antioxidant properties, and which contains a molybdenum compound and an alkylated phenothiazine. Further, it may also include a secondary diarylamine, preferably an alkylated diphenylamine. This combination of additives provides improved oxidation control and friction modifier performance to the lubricating oil. The composition is particularly suited for use as a crankcase lubricant, or a transmission lubricant, including low levels and zero levels of phosphorus.

Abstract: Crankcase lubricant compositions for use in automobile or truck engines comprise a major proportion of a lubricating oil, and an antioxidant system comprising added copper present in oil-soluble form and at least one oil-soluble phenothiazine.

Abstract: A hydraulic working oil composition for buffers which comprises:a lubricating oil as a base oil,(A) at least one phosphorus-containing compound selected from the group consisting of a phosphoric acid ester having a specific structure, a phosphorous acid ester having a specific structure and a salt of-the phosphoric acid ester and/or the phosphorous acid ester with an aliphatic monoamine having 8-22 carbon atoms, and(B) at least one nitrogen-containing compound selected from the group consisting of an aliphatic polyamine having a specific structure and a salt of the aliphatic polyamine with an aliphatic acid having 6 carbon atoms, the compounds (A) and (B) being essential components added to said base oil.