Abstract: Provided is a co-rotating scroll compressor comprising a synchronous drive mechanism that can achieve a long life. The compressor comprises a driving side scroll member (90) driven to rotate about a driving side rotation axis CL1, a driven side scroll member (70) driven to rotate about a driven side rotation axis CL2, a hollowed drive shaft (6) that is connected to the driving side scroll member (90), and driven by a motor (5) to rotate, and a driven shaft (20) that is disposed inside the drive shaft (6), and has one end connected to the drive shaft (6) via a first flexible coupling (21) and the other end connected to the driven side scroll member (70) via a second flexible coupling (22).

Abstract: A scroll compressor includes a drive bush disposed in one end portion in an axial direction of a main shaft, and configured to be eccentrically rotated in accordance with rotation of the main shaft, a pair of angular bearings arranged back-to-back, and respectively clearance-fitted to an outside of the drive bush, a compression unit that has a boss portion which protrudes from an end plate of a movable scroll and in which the angular bearings are interference-fitted to an inner peripheral surface of the boss portion, and a preload application unit configured to apply a preload to the angular bearings in a direction in which the angular bearings are configured to move toward each other.

Abstract: A co-rotating scroll compressor includes a driving-side scroll member (7), a driven-side scroll member (9), a pin ring mechanism (15), a driving-side bearing (11) that rotatably supports the driving-side scroll member (7), and a driven-side bearing (13) that rotatably supports the driven-side scroll member (9). A center of gravity of at least one of the driving shaft (6), the driving-side scroll member (7), and the driven-side scroll member (9) is shifted from rotation centers (CL1, CL2) by a predetermined distance. The predetermined distance is set so that a total bearing load obtained by centrifugal force and fluid compression that is 5% of a dynamic load rating of the driving-side bearing (11) and the driven-side bearing (13) or more is generated.

Abstract: The present invention provides a co-rotating scroll compressor that can inhibit leakage of lubricant supplied to a synchronous drive mechanism. A co-rotating scroll compressor includes a drive-side plate 20 placed between a driving scroll member 70 and a motor 5 at a predetermined distance from the driving scroll member 70 in a direction of a drive-side rotation axis CL1. The drive-side plate 20 includes a shaft portion 20b fixed to a driving shaft 6 of the motor 5 and a fixing portion 20a fixed to an outer periphery of the driving scroll member 70, and a synchronous drive mechanism made up of a needle bearing 32a and a pin 32b is placed between the drive-side plate 20 and driving scroll member 70.

Abstract: An electric compressor motor housing is provided with: a motor housing main body (8), the interior of which is a cylindrical space for internally equipping a motor, and in which a plurality of refrigerant passages are formed around the cylindrical space, in the direction of the motor axis; an inverter accommodating portion (17) provided in an upper portion of the outer periphery of the motor housing main body (8); compressor attachment feet (19) provided in a plurality of locations in upper and lower portions of the outer periphery of the motor housing main body (8); and a refrigerant intake port (16) provided on a side surface toward the rear end of the motor housing main body (8); wherein one or more lines of ribs (24) are provided on the outer peripheral side surface of the motor housing main body (8), protruding outward and extending in the vertical direction.

Abstract: Provided is a co-rotating scroll compressor comprising a synchronous drive mechanism that can achieve a long life. The compressor comprises a driving side scroll member (90) driven to rotate about a driving side rotation axis CL1, a driven side scroll member (70) driven to rotate about a driven side rotation axis CL2, a hollowed drive shaft (6) that is connected to the driving side scroll member (90), and driven by a motor (5) to rotate, and a driven shaft (20) that is disposed inside the drive shaft (6), and has one end connected to the drive shaft (6) via a first flexible coupling (21) and the other end connected to the driven side scroll member (70) via a second flexible coupling (22).

Abstract: There is provided a co-rotating scroll compressor in which a driving-side scroll member including a spiral wall between facing end plates can be manufacturable at low cost. A driving-side scroll member (70) includes a first driving-side scroll portion (71), a second driving-side scroll portion (72), and a bolt (31). The first driving-side scroll portion (71) includes a first driving-side end plate (71a) and a first driving-side wall (71b), and is driven by a motor (5). The second driving-side scroll portion (72) includes a second driving-side end plate (72a) and a second driving-side wall (72b). The bolt (31) performs fixing while a front end in a rotation axis direction of the first driving-side wall (71b) and a front end in the rotation axis direction of the second driving-side wall (72b) face each other.

Abstract: A co-rotating scroll compressor includes a driving-side scroll member, a driven-side scroll member, and a housing that accommodates both of the scroll members. The housing includes partition surfaces partitioned at a plane including both of the scroll members and approximately orthogonal to rotational axes of the scroll members, and flange parts that fasten the partition surfaces in a region on a periphery of the scroll members and on a lateral side when seen from a straight line connecting the rotational axes of the scroll members to each other.

Abstract: To provide a scroll fluid machine that can improve reliability in abrasion resistance of a power transmission mechanism including a pin member and a ring member. The machine includes a driving scroll member (20), a driven scroll member (22), and a power transmission mechanism (26) that transmits power to synchronously rotate both scroll members (20, 22) and allow the scroll members to revolve and orbit relative to each other. The power transmission mechanism (26) includes a pin (30) attached to the driven scroll member (22), a ring body (34) provided in the driving scroll member (20) and having an inner circumference in contact with an outer circumference of the pin (30), and a circular groove (32) housing the ring body (34) and having an inner circumference in contact with an outer circumference of the ring body (34).

Abstract: To provide a scroll fluid machine that can improve reliability in abrasion resistance of a power transmission mechanism including a pin member and a ring member. The machine includes a driving scroll member (20), a driven scroll member (22), and a power transmission mechanism (26) that transmits power to synchronously rotate both scroll members (20, 22) and allow the scroll members to revolve and orbit relative to each other. The power transmission mechanism (26) includes a pin (30) attached to the driven scroll member (22), a ring body (34) provided in the driving scroll member (20) and having an inner circumference in contact with an outer circumference of the pin (30), and a circular groove (32) housing the ring body (34) and having an inner circumference in contact with an outer circumference of the ring body (34).

Abstract: An electric compressor motor housing is provided with: a motor housing main body (8), the interior of which is a cylindrical space for internally equipping a motor, and in which a plurality of refrigerant passages are formed around the cylindrical space, in the direction of the motor axis; an inverter accommodating portion (17) provided in an upper portion of the outer periphery of the motor housing main body (8); compressor attachment feet (19) provided in a plurality of locations in upper and lower portions of the outer periphery of the motor housing main body (8); and a refrigerant intake port (16) provided on a side surface toward the rear end of the motor housing main body (8); wherein one or more lines of ribs (24) are provided on the outer peripheral side surface of the motor housing main body (8), protruding outward and extending in the vertical direction.

Abstract: This co-rotating scroll compressor is provided with: a first side plate (27) which is arranged on the side of a drive-side rotational axis direction (CL1) with respect to a drive-side scroll member (70) and a driven-side scroll member (90), a second side plate (30) fixed at a predetermined gap in the direction of the drive-side rotational axis (CL1) with respect to the first side plate (27), and a center plate (20) arranged between the first side plate (27) and the second side plate (30). The first side plate (27) is fixed to the driven-side scroll member (90), and the center plate (20) is fixed to the drive-side scroll member (70). A synchronization drive mechanism equipped with a crank pin (15) is disposed between the first side plate (27) and second side plate (30) and the center plate (20).

Abstract: A scroll compressor includes a drive bush (22) disposed in one end portion in an axial direction of a main shaft (21) rotated around an axis, and eccentrically rotated, a pair of angular bearings (23 and 24) arranged back-to-back, and respectively clearance-fitted to an outside of the drive bush (22), a compression unit (20) that has a boss portion (26C) which protrudes from an end plate (26A) of a movable scroll and in which the pair of angular bearings (23 and 24) are interference-fitted to an inner peripheral surface of the boss portion, and a preload application unit (30) that applies a preload to the pair of angular bearings (23 and 24) in a direction in which the pair of angular bearings (23 and 24) moves close to each other.

Abstract: A co-rotating scroll compressor that can achieve a longer operating life of a synchronous driving mechanism is provided. This compressor includes the synchronous driving mechanism that transmits driving force from a driving-side scroll member to a driven-side scroll member such that the driving-side scroll member and the driven-side scroll member perform rotation movement in a same direction at a same angular velocity. The synchronous driving mechanism includes a crankpin (15) and a rolling bearing (18) that rotatably supports a shaft portion (15b) of the crankpin (15). The rolling bearing (18) includes an inner ring (18b) fitted to the shaft portion (15b) and an outer ring (18a) fitted to a first side plate (27) that supports the shaft portion (15b). A sealing member (40) that extends to a side portion of the inner ring (18b) is fixed to a side portion of the outer ring (18a).

Abstract: Provided is a pin-ring mechanism (26) that supports a driving-side scroll member and a driven-side scroll member such that the driving-side scroll member and the driven-side scroll member are in relative revolving motion. The pin-ring mechanism (26) includes: a pin member (30); a ring member (34) that has an inner ring (34b) which comes into contact with the pin member (30), a plurality of balls (34c) which roll on the inner ring (34b), and a retainer (34d); and a bush 36 that is disposed on an inner periphery of the inner ring (34b), and receives a component of force in a circumferential direction of the inner ring (34b) from the pin member (30) to rotate together with the inner ring (34b).

Abstract: A co-rotating scroll compressor includes a driving-side scroll member (70) that is rotationally driven by a driving unit and includes a spiral driving-side wall (71b) disposed on a driving-side end plate (71a), and a driven-side scroll member that includes a driven-side wall corresponding to the driving-side wall (71b), the driven-side wall being disposed on a driven-side end plate and engaging with the driving-side wall (71b) to form a compression chamber. Positioning pins (40) that position a phase of the driving-side scroll member (70) around a driving-side rotation axis (CL1) are provided at two positions around the driving-side rotation axis (CL1) at a front end of the driving-side wall (71b) in an axis direction, and dummy pins (41) that are provided at equal angular intervals around the driving-side rotation axis (CL1) with the positioning pins (40) are provided.

Abstract: A co-rotating scroll compressor includes: a driving-side scroll member; a driven-side scroll member; a pin ring mechanism that transmits driving force from the driving-side scroll member to the driven-side scroll member so that the driving-side scroll member and the driven-side scroll member rotationally move in a same direction at a same angular velocity; and a coil spring that biases a distal end of a driving-side wall and a distal end of a driven-side wall in a direction toward a driven-side end plate and a driving-side end plate that are opposed to the distal end of the driving-side wall and the distal end of the driven-side wall.

Abstract: The present invention provides a co-rotating scroll compressor that can inhibit leakage of lubricant supplied to a synchronous drive mechanism. A co-rotating scroll compressor includes a drive-side plate 20 placed between a driving scroll member 70 and a motor 5 at a predetermined distance from the driving scroll member 70 in a direction of a drive-side rotation axis CL1. The drive-side plate 20 includes a shaft portion 20b fixed to a driving shaft 6 of the motor 5 and a fixing portion 20a fixed to an outer periphery of the driving scroll member 70, and a synchronous drive mechanism made up of a needle bearing 32a and a pin 32b is placed between the drive-side plate 20 and driving scroll member 70.

Abstract: Provided is a co-rotating scroll compressor which can alleviate the deformation caused by a centrifugal force generated in a scroll part. The present invention includes: a first driving side bearing and a second driving side bearing which rotatably support a driving side scroll member on shaft parts at one end side and the other end side in the axial direction, wherein a preload applied to a first driving side shaft part so that an axial clearance in the second driving side bearing direction is eliminated in the first driving side bearing, and a preload is applied to a second driving side shaft part so that an axial clearance in the first driving side bearing direction is eliminated in the second driving side bearing.

Abstract: A co-rotating scroll compressor includes a driving-side scroll member (7), a driven-side scroll member, a driving-side supporting member fixed to a distal end side of a driving-side wall (7b) in a rotation axis direction and rotated together with the driving-side scroll member (7), and a driven-side supporting member fixed to a distal end side of a driven-side wall in the rotation axis direction and rotated together with the driven-side scroll member.