An electric compressor includes a housing including a compression part housing, a shaft support housing, and a motor housing fastened by a plurality of fastening members. A peripheral wall has a plurality of thick-walled portions that protrudes inwardly in a radial direction and through which their associated fastening members are inserted. The fixed scroll base plate has a plurality of protruded portions each protruding outwardly in the radial direction and disposed between the thick-walled portions in a circumferential direction. The fixed scroll base plate has a plurality of pillar portions each extending from the protruded portions toward the shaft support housing in the axial direction and spaced from each other in the circumferential direction. The elastic plate is held at a plurality of spots by the plurality of pillar portions and the shaft support housing.

A scroll type fluid machine (1) including a rotation stopping mechanism (36) for stopping rotation of a movable scroll without hindering revolving motion of the movable scroll (16) relative to a fixed scroll (14) fixed to a casing (4), the rotation stopping mechanism includes: a support hole (42) drilled in either one of a base plate (16a) of the movable scroll and a pedestal part (4a) of the casing; a rotation stopping pin (38) that is fitted into the support hole, and is protruded to the side of the other of the base plate and the pedestal part; a restriction hole (46) drilled in the other of the base plate and the pedestal part, and loosely fitted with the rotation stopping pin; and a buffer member (44) interposed between the support hole and the rotation stopping pin.

A scroll compressor, includes: a pressure container; a frame including a hollow cylindrical portion and a bottom surface portion formed integrally with each other, the hollow cylindrical portion having an outer peripheral surface fixed to an inner peripheral surface of the pressure container; an orbiting scroll including a first base plate and a first spiral tooth formed on one surface of the first base plate, the orbiting scroll being rotatable in a hollow portion of the hollow cylindrical portion; a fixed scroll including a second base plate with a second spiral tooth, the second spiral tooth being meshed with the first spiral tooth; and a second suction pipe communicating with the hollow portion of the hollow cylindrical portion.

In a scroll compressor, a first flow passage is formed in a fixed base plate and a frame to supply oil separated by an oil separating mechanism provided in a sealed container to an oil sump at the bottom of the sealed container. In the fixed base plate, a second flow passage is formed to supply the oil separated by the oil separating mechanism into a compression mechanism.

A scroll compressor includes fixed and movable scrolls, and a drive part. The fixed scroll has a fixed-side end plate, a fixed-side lap, and a thrust sliding portion surrounding the first lap. The movable scroll has a movable-side end plate and a movable-side lap. The drive part revolves the movable scroll so that refrigerant in a compression chamber formed by the fixed-side lap and movable-side lap is compressed. A back-pressure space which communicates with the compression chamber for at least a prescribed period in a revolution cycle is formed at the back face side of the movable scroll. A first oil channel supplied with oil from a space is formed in a first angle region of the fixed-side end plate. A communication channel formed in a second angle region communicates with the compression chamber. A second oil channel communicating with the back-pressure space is formed in the second angle region.

A scroll compressor includes: a housing; a rotary shaft; a fixed scroll including a fixed base plate, a fixed spiral wall, and an outer peripheral wall; an orbiting scroll including an orbiting base plate and an orbiting spiral wall; a compression chamber; a suction port; a suction chamber; a discharge chamber; an oil storage chamber; and an oil supply hole. The fixed scroll includes a groove disposed at the same position as the oil supply hole or on an outer side with respect to the oil supply hole in a radial direction of the rotary shaft. At least part of the groove is configured to be closed by the orbiting base plate according to a revolution of the orbiting scroll. The oil supply hole and the groove form part of an oil supply passage that supplies oil in the oil storage chamber to the suction chamber.

To be as lightweight and compact, for example for automotive technology, a scroll compressor further includes an axial guide that supports the movable compressor body to prevent movements in the direction parallel to a centre axis of the stationary compressor body and, in the event of movements, guides it in the direction transverse to the centre axis. A coupling prevents the movable compressor body from rotating freely. The axial guide supports a compressor body base, which carries the scroll vane, of the second compressor body against an axial support face, in that the axial support face abuts a sliding body such that it is slidable transversely to the centre axis. The sliding body is slidable transversely to the centre axis, on a carrier element that is arranged in the compressor housing.

Embodiments of the present disclosure provide a scroll compressor. The scroll compressor includes: a fixed scroll having an end plate and a fixed scroll wrap extending from the end plate; an orbiting scroll having an orbiting scroll wrap, the orbiting scroll wrap being engaged with the fixed scroll wrap to form a plurality of compression chambers for compressing a medium; a channel formed in the end plate of the fixed scroll, the channel leading to one compression chamber of the plurality of compression chambers; and a valve provided on the end plate of the fixed scroll, and configured to open when a pressure in the one compression chamber is higher than a predetermined pressure threshold so as to allow the medium in the one compression chamber to flow out of the one compression chamber through the channel. The scroll compressor according to the embodiments of the present disclosure, for example, can improve the performance of the scroll compressor.

A scroll compressor may include a casing having a low pressure portion and a high pressure portion, a refrigerant suction pipe that communicates with the low pressure portion and a refrigerant discharge pipe that communicates with the high pressure portion, a drive motor installed inside of the low pressure portion, an orbiting scroll coupled to the drive motor to perform an orbiting motion, a non-orbiting scroll engaged with the orbiting scroll to form a compression chamber, and a refrigerant guide provided on the non-orbiting scroll to guide a refrigerant suctioned into the low pressure portion to be suctioned into the compression chamber, whereby an increase in specific volume of refrigerant suctioned into the compression chamber may be suppressed, and thus, an amount of refrigerant suctioned into the compression chamber may increase, thereby improving efficiency of the compressor.

In this scroll fluid machine, a tip seal (7) that is in contact with facing end plates (5a) and that is for sealing in a fluid is provided to a tip seal groove (3d) formed on the tooth tip of a wall (3b). The tooth bottoms of the end plates (5a) have a shape in which a central section is deeper than a side section (5d3) in a width direction orthogonal to the spiral direction of a wall (5b). During operation, the protrusion amount (δ) when the tip seal (7) protrudes from the tooth tip of the wall (3b) in an inclined section and is in contact with the facing end plates is greater than the protrusion amount (δ) when the tip seal (7) protrudes from the tooth tip of the wall (3b) in a flat section and is in contact with the facing end plates.