Abstract: This scroll compressor comprises: a shaft that is capable of rotating about an axis; a motor that rotatably drives the shaft; a compressor body that is driven by the rotation of the shaft; a housing that covers the motor and the compressor body and that has a bottom surface facing the motor from the axial direction; an intake port that guides a refrigerant into the housing; and heat-dissipating fins that are formed on the bottom surface, that extend in the direction in which the refrigerant flows, and that are divided in the flow direction.

Abstract: A motor includes a motor body having a rotor that is rotatable around an axis and a stator that surrounds the rotor; a casing that has a cylinder portion and a an inverter box, the cylinder portion forming a cylindrical shape extending in an axial direction and surrounding the motor body, internally having a cooling water channel that extends in a C shape in a circumferential direction, and being used for allowing cooling water to flow, the inverter box overhanging on both sides of the cylinder portion in a tangential direction on an outer peripheral side of the cooling water channel in the cylinder portion; and an inverter that is housed in the inverter box and has a switching element disposed on a surface of the cylinder portion facing radially outward in the inverter box.

Abstract: This scroll compressor is provided with a scroll member which has a compression chamber which compresses a work fluid, a housing which houses the scroll member, a second drive-side shaft (72c) which discharges compressed work fluid from the compression chamber and which rotates about an axis with respect to the housing, and a seal member (16) which contacts and forms a seal with the outer peripheral surface X of the second drive-side shaft (72c). On the outer peripheral surface (X) that contacts the seal member (16), the second drive-side shaft (72c) is provided with a surface hardened part (Y).

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 pin-ring mechanism that transmits driving force to cause a driving-side scroll member and a driven-side scroll member to perform rotational movement in a same direction at a same angular velocity is provided. A driving-side end plate includes a ring member installation hole into which a ring member is inserted and installed. The ring member installation hole includes a non-wall-side hole part and a wall-side hole part. The non-wall-side hole part is formed from a non-wall-side surface and has a diameter corresponding to an outer diameter of the ring member. The wall-side hole part is formed from a wall-side surface and has a diameter smaller than the outer diameter of the ring member.

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: 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: 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 that is rotationally driven by a driving unit and includes a spiral driving-side wall disposed on a driving-side end plate, and a driven-side scroll member (90) that includes a driven-side wall corresponding to the driving-side wall. The driven-side wall is disposed on a driven-side end plate (90a) and engages with the driving-side wall to form a compression chamber. A first support member (33) is provided to a front end of a first driven-side wall (91b) in an axis direction. The first support member (33) is connected to the front end by a positioning pin (40) positioning a phase around a rotation axis, and rotates together with the first driven-side wall (91b). The positioning pin (40) is pressed into the first support member (33) and is fitted into the first driven-side wall (91b) in a non-pressed-in state.

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 scroll accommodation portion (3b) for accommodating a driving-side scroll member (70), a driven-side scroll member (90), a first support member (33), and a second support member (35) is provided. The first driving-side scroll portion (71) and a second driving-side scroll portion (72) are fixed by a wall fixing bolt (31). The driven-side scroll member (90) and the second support member (35) are fixed by a second support fixing bolt (36). The scroll accommodation portion (3b) is formed with an access hole (3b1) accessible to the wall fixing bolt (31) and the second support fixing bolt (36).

Abstract: A scroll compressor includes scroll members that include a compression chamber to compress working fluid, a housing that houses the scroll members, a second driving-side shaft portion that discharges the compressed working fluid from the compression chamber and is rotated around an axis with respect to a second driving-side shaft portion accommodation portion of the housing, and a seal member that is fixed to an outer periphery of the second driving-side shaft portion and comes into contact with an inner peripheral surface of the second driving-side shaft portion accommodation portion for sealing. The second driving-side shaft portion accommodation portion includes a wear resistant portion on the inner peripheral surface coming into contact with the seal member.

Abstract: The scroll compressor includes scroll members that include a compression chamber to compress working fluid, a housing that houses the scroll members, a second driving-side shaft portion that discharges the compressed working fluid from the compression chamber and is rotated around an axis with respect to the housing, a bearing that rotatably supports the housing with respect to the second driving-side shaft portion , and a seal member between the second driving-side shaft portion and the housing . A lubricant is provided between the bearing and the seal member.

Abstract: A pin-ring mechanism that transmits driving force to cause a driving-side scroll member and a driven-side scroll member to perform rotational movement in a same direction at a same angular velocity is provided. A driving-side end plate includes a ring member installation hole into which a ring member is inserted and installed. The ring member installation hole includes a non-wall-side hole part and a wall-side hole part. The non-wall-side hole part is formed from a non-wall-side surface and has a diameter corresponding to an outer diameter of the ring member. The wall-side hole part is formed from a wall-side surface and has a diameter smaller than the outer diameter of the ring member.