Abstract: A scroll compressor is provided. The scroll compressor has a housing, a partition plate, a rack, a movable scroll plate, a stationary scroll plate and a pressure relief low-speed rotation structure. The partition plate is in the interior of the housing and divides the interior of the housing into a suction space and a discharge space, and has a first through to communicate the suction space with the discharge space. The rack is in the suction space and spaced apart from the partition plate. The movable scroll plate is movably provided on the rack. The stationary scroll plate is provided on the rack and cooperates with the movable scroll plate, and has a second through hole communicating with the discharge space. The pressure relief low-speed rotation structure is provided on the stationary scroll plate and configured to communicate the second through hole with the discharge space.

Abstract: A scroll structure and a compressor are provided. The scroll structure has a first scroll plate, a second scroll plate matching the first scroll plate, a back pressure plate and a floating plate. The first scroll plate and the second scroll plate can move relative to each other. A recess is provided at one end of the second scroll plate facing away from the first scroll plate. A first through hole is provided on the second scroll plate. The back pressure plate is arranged in the recess. A gap is provided between the back pressure plate and a side wall of the recess. The floating plate is movably arranged on the back pressure plate. The floating plate covers the gap. A first chamber is formed among the second scroll plate, the back pressure plate and the floating plate. The first through hole is in communication with the first chamber.

Abstract: A scroll compressor of the present invention includes a first discharge port 35 which is in communication with a compression chamber 50, a discharge space 30H which is in communication with the first discharge port 35, a second discharge port 21 which brings the discharge space 30H into communication with a high pressure space 11, a discharge check valve 131 capable of closing the second discharge port 21, a bypass port 36 which brings the compression chamber 50 into communication with the discharge space 30H, and a bypass check valve 121 capable of closing the bypass port 36, the fixed scroll 30 can move in an axial direction of the fixed scroll between the partition plate 20 and the main bearing 60, a high pressure is applied to the discharge space 30H and according to this, the fixed scroll 30 can be pressed against the orbiting scroll 40.

Abstract: A scroll compressor of the present invention includes a partition plate 20, a fixed scroll 30, an orbiting scroll 40, a rotation-restraining member 90, a main bearing 60, a bearing-side concave portion 102, a scroll-side concave portion 101 and a columnar member 100. A lower end of the columnar member 100 is inserted into the bearing-side concave portion 102, and an upper end of the columnar member is inserted into the scroll-side concave portion 101. The columnar member 100 slides with at least one of the bearing-side concave portion 102 and the scroll-side concave portion 101, thereby moving the fixed scroll 30 in an axial direction between the partition plate 20 and the main bearing 60. A high pressure is applied to a discharge space 30H, thereby pressing the fixed scroll 30 against the orbiting scroll 40.

Abstract: A scroll compressor of the present invention includes a partition plate, a fixed scroll, an orbiting scroll, a rotation-restraining member, a main bearing, a discharge space, a ring-shaped first seal member and a ring-shaped second seal member. A pressure in the medium pressure space is set lower than that in the discharge space and higher than that in the low pressure space. The first seal member and the second seal member are sandwiched by the partition plate by means of a closing member, the fixed scroll can move in an axial direction of the fixed scroll between the partition plate and the main bearing. If a high pressure is applied to the discharge space, the fixed scroll can be pressed against the orbiting scroll.

Abstract: A scroll compressor of the present invention includes a partition plate 20, a fixed scroll 30, an orbiting scroll 40, a rotation-restraining member 90 and a main bearing 60. An inner wall of a fixed spiral lap 32 of the fixed scroll 30 is formed up to a location close to an ending-end of an orbiting spiral lap 42 of the orbiting scroll 40, thereby differentiating, from each other, a containment capacity of one (50A) of compression chambers and a containment capacity of the other compression chamber 50B, the fixed scroll 30 can move in an axial direction of the fixed scroll between the partition plate 20 and a main bearing 60, and high pressure is applied to a discharge space 30H formed between the partition plate 20 and the fixed scroll 30. According to this, the fixed scroll 30 can be pressed against the orbiting scroll 40.

Abstract: A diameter of a main bearing member 12m is defined as Dm, a length thereof is defined as Lm, a diameter of the eccentric bearing member 11e is defined as De and a length thereof is defined as Le. A ratio (=Lm/Dm) of the length and the diameter of the main bearing member 12m and a ratio (=Le/De) of the length and the diameter of the eccentric bearing member 11e are set to Le/De?Lm/Dm?1. Therefore, contact at edge portions of both ends of the eccentric bearing member 11e does not occur, and it is possible to prevent contact at edge portions of both ends of the main bearing member 12m even if the main shaft 13m inclines, and to reduce a viscosity loss caused by oil 9a. Hence, the present invention provides a scroll compressor securing reliability of the bearing members 12m, 11e and 16s and having high efficiency.

Abstract: A scroll compressor of the present invention includes a first discharge port 35 which is in communication with a compression chamber 50, a discharge space 30H which is in communication with the first discharge port 35, a second discharge port 21 which brings the discharge space 30H into communication with a high pressure space 11, a discharge check valve 131 capable of closing the second discharge port 21, a bypass port 36 which brings the compression chamber 50 into communication with the discharge space 30H, and a bypass check valve 121 capable of closing the bypass port 36, the fixed scroll 30 can move in an axial direction of the fixed scroll between the partition plate 20 and the main bearing 60, a high pressure is applied to the discharge space 30H and according to this, the fixed scroll 30 can be pressed against the orbiting scroll 40.

Abstract: A scroll compressor of the present invention includes a partition plate 20, a fixed scroll 30, an orbiting scroll 40, a rotation-restraining member 90 and a main bearing 60. An inner wall of a fixed spiral lap 32 of the fixed scroll 30 is formed up to a location close to an ending-end of an orbiting spiral lap 42 of the orbiting scroll 40, thereby differentiating, from each other, a containment capacity of one (50A) of compression chambers and a containment capacity of the other compression chamber 50B, the fixed scroll 30 can move in an axial direction of the fixed scroll between the partition plate 20 and a main bearing 60, and high pressure is applied to a discharge space 30H formed between the partition plate 20 and the fixed scroll 30. According to this, the fixed scroll 30 can be pressed against the orbiting scroll 40.

Abstract: A scroll compressor of the present invention includes a partition plate 20, a fixed scroll 30, an orbiting scroll 40, a rotation-restraining member 90, a main bearing 60, a bearing-side concave portion 102, a scroll-side concave portion 101 and a columnar member 100. A lower end of the columnar member 100 is inserted into the bearing-side concave portion 102, and an upper end of the columnar member is inserted into the scroll-side concave portion 101. The columnar member 100 slides with at least one of the bearing-side concave portion 102 and the scroll-side concave portion 101, thereby moving the fixed scroll 30 in an axial direction between the partition plate 20 and the main bearing 60. A high pressure is applied to a discharge space 30H, thereby pressing the fixed scroll 30 against the orbiting scroll 40.

Abstract: A scroll compressor of the present invention includes a partition plate 20, a fixed scroll 30, an orbiting scroll 40, a rotation-restraining member 90, a main bearing 60, a discharge space 30H, a ring-shaped first seal member 141 and a ring-shaped second seal member 142. A pressure in the medium pressure space 30M is set lower than that in the discharge space 30H and higher than that in the low pressure space 12. The first seal member 141 and the second seal member 142 are sandwiched by the partition plate 20 by means of a closing member 150, the fixed scroll 30 can move in an axial direction of the fixed scroll between the partition plate 20 and the main bearing 60. If a high pressure is applied to the discharge space 30H, the fixed scroll 30 can be pressed against the orbiting scroll 40.

Abstract: A diameter of a main bearing member 12m is defined as Dm, a length thereof is defined as Lm, a diameter of the eccentric bearing member 11e is defined as De and a length thereof is defined as Le. A ratio (=Lm/Dm) of the length and the diameter of the main bearing member 12m and a ratio (=Le/De) of the length and the diameter of the eccentric bearing member 11e are set to Le/De?Lm/Dm?1. Therefore, contact at edge portions of both ends of the eccentric bearing member 11e does not occur, and it is possible to prevent contact at edge portions of both ends of the main bearing member 12m even if the main shaft 13m inclines, and to reduce a viscosity loss caused by oil 9a. Hence, the present invention provides a scroll compressor securing reliability of the bearing members 12m, 11e and 16s and having high efficiency.

Abstract: a First gap (15) in a thrust direction between teeth bottoms of a fixed mirror plate (2b) and teeth tips of an orbiting lap (4a), and a second gap (16) in the thrust direction between teeth bottoms of an orbiting mirror plate 4b and teeth tips of a fixed lap (2a) are formed such as to gradually increase from an outer peripheral side to an inner peripheral side of a scroll compressor, the first gap (15) is made greater than the second gap (16). Contact surface pressures of the laps (2a) and (4a) are kept low with respect to pressure formation, contact pressure of the teeth tips of the fixed scroll part (2) and the teeth bottoms of the orbiting scroll part (4)are equally maintained. With this loads applied to the scroll parts (2) and (4)are equally received by a thrust surface.

Abstract: A scroll compressor in which a scroll fixed lap rising from a fixed plate of a fixed scroll and a scroll orbiting lap rising from an orbiting plate of an orbiting scroll are combined with each other to form compression chambers therebetween, the fixed scroll is made of iron-based material, the orbiting scroll is made of aluminum-based material, at least the plate back surface of the orbiting scroll is subjected to surface processing.

Abstract: A scroll compressor in which a scroll fixed lap rising from a fixed plate of a fixed scroll and a scroll orbiting lap rising from an orbiting plate of an orbiting scroll are combined with each other to form compression chambers therebetween, the fixed scroll is made of iron-based material, the orbiting scroll is made of aluminum-based material, at least the plate back surface of the orbiting scroll is subjected to surface processing.

Abstract: a First gap 15 in a thrust direction between teeth bottoms of a fixed mirror plate 2b and teeth tips of an orbiting lap 4a, and a second gap 16 in the thrust direction between teeth bottoms of an orbiting mirror plate 4b and teeth tips of a fixed lap 2a are formed such as to gradually increase from an outer peripheral side to an inner peripheral side of a scroll compressor, the first gap 15 is made greater than the second gap 16. Contact surface pressures of the laps 2a and 4a are kept low with respect to pressure deformation, contact pressure of the teeth tips of the fixed scroll part 2 and the teeth bottoms of the orbiting scroll part 4 are equally maintained. With this loads applied to the scroll parts 2 and 4 are equally received by a thrust surface.

Abstract: A method of manufacturing a sliding part includes the steps of forming a green member by injection molding integrally and unmixedly two powdery metallic materials of different compositions, sintering the green member and subjecting the green member to at least one heat treatment.

Abstract: To prevent heat transfer inhibition and an increase in pressure loss due to refrigerating machine oil discharged into a cycle, and to provide a compact and highly efficient refrigerating cycle apparatus using carbon dioxide gas (CO2).

Abstract: A method of manufacturing a sliding part includes the steps of forming a green member by injection molding integrally and unmixedly two powdery metallic materials of different compositions, sintering the green member and subjecting the green member to at least one heat treatment.

Abstract: A rotary compressor has a cylinder, a crank shaft having an eccentric part disposed in said cylinder, a bearing which rotatably supports said crank shaft, a roller which moves in said cylinder following said eccentric part, and a vane whose all or part of the tip is of R configuration, wherein a groove with which the vane tip is disposed in contact is provided on the outer periphery of said roller, a first oil groove is provided on the end face of said roller, and said roller is provided with an oil hole communicating said first oil groove and said groove of the roller.