Abstract: A compressor includes: a housing including a cylindrical body, and a first cover and a second cover which are respectively arranged at two axial ends of the cylindrical body; a compression mechanism accommodated in the housing and constructed to compress a working fluid; a crankshaft constructed for driving the compression mechanism; a motor constructed to drive the crankshaft to rotate; and a bearing block accommodated in a space defined by the motor and the housing and fixedly attached to the housing, wherein the bearing block is constructed to rotatably support the crankshaft by means of a bearing. The housing is provided with a cylindrical reinforcing portion used for defining a space, and the rigidity of the cylindrical reinforcing portion being greater than that of other parts of the housing. The structure can significantly reduce noise radiation and reduce manufacturing processes and costs.

Abstract: Disclosed are an oil separation apparatus (70) and a horizontal vortex compressor (1) comprising the oil separation apparatus (70). The oil separation apparatus (1) comprises a support (71) and a filter member (72), wherein the support (71) is generally cylindrical and comprises a cylindrical wall (712), the filter member (72) is arranged on the cylindrical wall (712), and the cylindrical wall (712) is provided with an opening (711, 713) used for working fluid to pass through; and the filter member (72) is generally cylindrical, and comprises an inner and an outer holding member (74, 76) holding inner and outer contours of the filter member (72) and end holding members (75a, 75b) provided on axial ends of the filter member (72). The oil separation apparatus (70) can increase the oil level of lubricating oil in the compressor (1), reducing disturbance in an oil tank and reducing oil circulation efficiency.

Abstract: Provided are a fluid circulation system and a method for operating same, a computer-readable medium, and a controller. The fluid circulation system comprises: a scroll expander, and an external fluid circulation path, which comprises a high-pressure fluid pipe and a low-pressure fluid pipe. The operation method comprises the following steps: before fluid is supplied to the scroll expander, making the fluid pressure in the high-pressure fluid pipe higher than the fluid pressure in the low-pressure fluid pipe by a pre-determined pressure difference; and after the pre-determined pressure difference is realized, starting the scroll expander and supplying fluid to the scroll expander. According to the present disclosure, the technical problem of a scroll expander being unable to be normally started and work can be avoided, and the invention is simple, practical, convenient, and easily implemented.

Abstract: Disclosed are a scroll compressor and a method for assembling a non-orbiting scroll of the scroll compressor. The scroll compressor includes: a scroll mechanism including a non-orbiting scroll which includes a non-orbiting scroll end plate and a non-orbiting scroll wrap and an outer peripheral wall; and a main bearing seat for supporting the scroll mechanism including a main body part and an axial seat portion whose inner peripheral surface is formed with a circumferential annular groove. The scroll compressor further includes an elastic ring provided between the outer peripheral wall and the axial seat portion and a push structure for forcing the elastic ring to expand radially outward, so that a part of the elastic ring in a radial direction is inserted into the circumferential annular groove to limit axial movement of the non-orbiting scroll away from the main bearing seat.

Abstract: Disclosed are a scroll compression mechanism and a scroll compressor. The scroll compression mechanism comprises a non-orbiting scroll member, an orbiting scroll member, an oil supply passage, an adjusting valve and a fluid pressure passage comprising a first end and a second end. The first end is in fluid communication with a first pressure source to apply a first pressure to the movable valve body, the second end is in fluid communication with a second pressure source to apply a second pressure to the movable valve body, so that based on a pressure difference between the first and second pressures the movable valve body can selectively move toward a first direction of reducing a flow cross-sectional area of the oil supply passage and toward a second direction of increasing the flow cross-sectional area of the oil supply passage, thereby adjusting an oil supply amount to the scroll compression mechanism.

Abstract: A compressor system (10) and an intake pipe (300) used for the compressor system (10), wherein the intake pipe (300) comprises: a lubricant separator (310), which is configured to separate a lubricant which is in a compression fluid flowing through the intake pipe (300); and a first lubricant supply pipe (340), which is configured to supply the separated lubricant to a first compressor (100) or a second compressor (200) in the compressor system (10).

Abstract: Disclosed are a movable scroll device for a scroll compressor and a method for manufacturing same. The method includes: manufacturing the movable scroll device by means of casting steps, so that the movable scroll device includes a movable scroll end plate, with a movable scroll blade provided on a first side face of the movable scroll end plate; and a hub vertically extending outwards from the middle of a second side face of the movable scroll end plate; and fabricating at least one centroid adjustment recess on the hub. By the method, the centroid of the movable scroll device can be adjusted in a more flexible, precise, active and targeted manner.

Abstract: Disclosed are a compression mechanism and a scroll compressor. The compression mechanism comprises an orbiting scroll and a non-orbiting scroll comprising a non-orbiting scroll end plate and forms a series of fluid chambers comprising an intermediate compression chamber. An exhaust communication space is provided on the second side of the non-orbiting scroll end plate, and the non-orbiting scroll end plate is provided with a pressure relief port which makes at least one intermediate compression chamber be in selective fluid communication with the exhaust communication space. An end plate surface on the first side of the non-orbiting scroll end plate is provided with an exhaust groove which is in communication with the pressure relief port, the pressure relief port can be in fluid communication with the at least one intermediate compression chamber through the exhaust groove.

Abstract: Disclosed are an oil supplying mechanism, and a horizontal compressor having same. Disclosed is an oil supply mechanism for a horizontal compressor, the horizontal compressor including a housing, a motor, a rotating shaft driven by the motor, and a bearing pedestal supporting the rotating shaft. The oil supply mechanism includes a separating member, the separating member being in the form of a ring having a central hole for allowing the bearing pedestal to pass therethrough, and the separating member being configured to separate the housing into an oil storage chamber and a motor chamber with the motor provided therein. The separating member is constructed to have an annular groove opening into the oil storage chamber. The oil supply mechanism and the horizontal compressor having the oil supply mechanism can reduce or minimize free space in the motor chamber and/or facilitate a quality inspection on the structure of a pump.

Abstract: A scroll compressor includes: a rotary shaft; a compression mechanism including an orbiting scroll and a non-orbiting scroll, an extension portion of the orbiting scroll engaging with an eccentric structure of the rotary shaft via a bushing and a driving bearing having an axial height L1; and a counterweight located on the bushing, a mass center of the counterweight being located above an axial lower end of the driving bearing and having an axial distance L2 to the axial center of the driving bearing, and the ratio R of the axial distance L2 to the axial height L1 satisfying: 0.1?R?0.4. The scroll compressor can reduce the contact and wear between the bushing and the driving bearing and reduce the requirements for the manufacturing precision and the mounting precision of components such as the counterweight and the bushing, achieving optimized system design.

Abstract: An electronic expansion valve is provided including: a valve body provided with a first port and a second port, a first cavity being defined in the valve body and being in fluid communication with the first port, the valve body also being provided with a valve port between the second port and the first cavity; a drive mechanism including a rotor having a rotor screw and a stator; a valve spindle assembly at least partially disposed in the valve body and being capable of operatively cooperating with the rotor screw for reciprocating motion to adjust the degree of opening of the valve port; and a second cavity isolated and sealed off from the first cavity, wherein a balancing passage is formed in the rotor screw and the valve spindle assembly to enable the second cavity to be in fluid communication with the second port via the balancing passage.

Abstract: An expander and a fluid circulation system comprising same are disclosed. The expander comprises a housing, an expansion mechanism, an exhaust pipe, an oil sump and a lubricant discharge channel. The expansion mechanism is provided in the housing to expand a high-pressure fluid into a low-pressure fluid. The exhaust pipe discharges the low-pressure fluid out of the expander and comprises an end portion assembled in a first opening of the housing and provided with an exhaust port; the low-pressure fluid enters the exhaust pipe via the exhaust port. The oil sump stores a lubricant in the housing. The lubricant discharge channel discharges the lubricant in the oil sump into the exhaust pipe and/or an external system pipeline and comprises an inlet end having an inlet located at a predetermined oil level of the oil sump and an outlet end having an outlet.

Abstract: A scroll compressor comprises a partition plate, a compression mechanism, a capacity adjustment device and a sealing assembly. The sealing assembly isolates a back pressure chamber from a high-pressure space and low-pressure space. A first sealing portion is formed between the sealing assembly and the partition plate. The capacity adjustment device is provided with a variable pressure chamber and configured to establish or break the communication between a first compression chamber and the low pressure space by changing the pressure in the variable pressure chamber. According to the compressor, requirements for pressure in the back pressure chamber of the compressor in different load conditions can be balanced, the axial force on the compression mechanism can be reduced, the power consumption of the scroll compressor can be lowered, the system performance can be improved, and the manufacturing cost can be reduced.

Abstract: A scroll compressor comprising: a fixed scroll and a moving scroll, the moving scroll being configured to be capable of orbiting relative to the fixed scroll in order to compress fluid; a main bearing base supporting the moving scroll; and an axial flexible mounting mechanism, the fixed scroll being connected to the main bearing base by means of the axial flexible mounting mechanism, such that the fixed scroll can move a predetermined distance along the axial direction, the axial flexible mounting mechanism comprising a bolt and a sleeve arranged on the outer circumference of the bolt, the sleeve comprising in the axial direction a first section in contact with the main bearing base and a second section in contact with the fixed scroll, and the first section being configured such that the bending rigidity in the radial direction is different to the bending rigidity in the tangential direction.

Abstract: A main bearing housing assembly for a scroll compressor and a scroll compressor having the main bearing housing assembly. The main bearing housing assembly comprises: a main bearing housing; and a thrust plates, the thrust plate being provided at the top of the main bearing housing, and comprising a thrust surface located at the top and in surface contact with the bottom end surface of a scroll assembly of the scroll compressor; the thrust plate comprises: at least one oil inlet hole; a closed oil chamber, the closed oil chamber being formed in the thrust plate; and at least one oil outlet hole, the opening of the at least one oil outlet hole being exposed to the thrust surface; and the at least one oil inlet hole is in communication with the at least one oil outlet hole by means of the closed oil chamber.

Abstract: A damping apparatus for an exhaust valve in a compressor, an exhaust valve assembly having the damping apparatus, and a compressor using the exhaust valve assembly. The damping apparatus comprises a fixed body; the fixed body comprises an exhaust hole comprises an exhaust hole through which a compression cavity and an exhaust cavity are in fluid communication with each other; the exhaust hole comprises an inlet, an outlet, and an intermediate cavity provided between the inlet and the outlet and allowing the inlet and the outlet to be in fluid communication with each other; the intermediate cavity is configured to enable the backflow of the gas from the exhaust cavity to form a vortex in the intermediate cavity. The damping apparatus has advantages of reducing the force and frequency of impacts on an exhaust valve plate, and prolonging the service life of the valve plate.

Abstract: Provided are a fluid circulation system and a method for operating same, a computer-readable medium, and a controller. The fluid circulation system comprises: a scroll expander, and an external fluid circulation path, which comprises a high-pressure fluid pipe and a low-pressure fluid pipe. The operation method comprises the following steps: before fluid is supplied to the scroll expander, making the fluid pressure in the high-pressure fluid pipe higher than the fluid pressure in the low-pressure fluid pipe by a pre-determined pressure difference; and after the pre-determined pressure difference is realized, starting the scroll expander and supplying fluid to the scroll expander. According to the present disclosure, the technical problem of a scroll expander being unable to be normally started and work can be avoided, and the invention is simple, practical, convenient, and easily implemented.

Abstract: Disclosed are a main bearing seat for a scroll compressor, and a scroll compressor. The main bearing seat comprises substantially ring-shaped thrust parts for supporting a compressing mechanism of the scroll compressor, and a main part body provided with a bearing to support a driving shaft of the scroll compressor, wherein multiple suspension parts extending in a radial direction of the scroll compressor are provided in the thrust parts, and the suspension parts are arranged in an axial direction of the scroll compressor.

Abstract: Disclosed is a scroll compressor including: an orbiting scroll having an orbiting scroll end plate and an orbiting volute formed on one side of the orbiting scroll end plate, and a fixed scroll having a fixed scroll end plate and a fixed volute formed on one side of the fixed scroll end plate. The fixed and orbiting scrolls match each other in order to form a series of compression cavities therebetween including a central compression cavity and middle compression cavities located radially outside of the central compression cavity, and. The middle compression cavities include at least a set of a first middle compression cavity and a second middle compression cavity. A fluid channel selectively communicating with a discharge area is provided between the first and second middle compression cavities, and the first middle compression cavity directly communicates with the second middle compression cavity by means of the fluid channel.

Abstract: Provided is a scroll compressor, comprising a compression mechanism and a valve assembly. The compression mechanism is provided with a vent, and the valve assembly is used for selectively opening and closing the vent. The valve assembly comprises a valve plate and at least one valve piece. The valve plate comprises at least one valve orifice; and the valve piece is configured to selectively open and close the valve orifice. The scroll compressor further comprises a guide passageway. The guide passageway is provided with a first port communicating with the valve orifice and a second port communicating with the exhaust opening. The valve assembly and the compressor can significantly prolong the service life of the valve piece, and can provide good guidance for a fluid discharged from the compression mechanism, thereby significantly reducing the resistance of venting and the fluid pressure drop, and improving the effect of venting.