561 results about "Rotary compressor" patented technology

The utility model discloses a rotary compressor and refrigeration equipment, and relates to the technical field of compressors, the rotary compressor comprises a motor, the motor comprises a stator and a rotor, the stator comprises a stator iron core and a stator winding, the stator iron core comprises an annular yoke part and a plurality of tooth parts arranged in the yoke part, the plurality of tooth parts are spaced along the circumferential direction of the yoke part, and the stator winding is arranged in the yoke part; a stator groove is formed between every two adjacent tooth parts, the stator winding is wound in the stator grooves, and the rotor comprises a rotor iron core; the pump body part comprises a crankshaft, an upper bearing and a cylinder; the number of the stator grooves is Q, the number of poles of the rotor is P, the maximum outer circle contour radius of the rotor core is R1, the maximum outer circle contour outer diameter is D1, D1 = 2 * R1, the outer diameter of the part, matched with the upper bearing, of the crankshaft is D2, GCD (Q, P) is the largest common divisor of Q and P, and GCD (Q, P) is larger than or equal to # imgabs0 # 5 and smaller than or equal to 6. The rotary compressor disclosed by the utility model is beneficial to improving the energy efficiency of the rotary compressor and reducing the electric energy consumption during operation.

The utility model belongs to the technical field of compressors, and discloses a rotary compressor which comprises a shell, an air cylinder and a motor, the shell is provided with an inner cavity, the air cylinder and the motor are both arranged in the inner cavity, the air cylinder is provided with a compression cavity, a piston is arranged in the compression cavity, blades penetrate through the air cylinder, stretch into the compression cavity and abut against the piston, and the motor comprises a stator, a rotor and a crankshaft. The crankshaft comprises a shaft part and an eccentric part, the shaft part is fixed in the rotor, and the eccentric part is inserted into the piston; the value range of the outer diameter of the stator is 66-108 mm, the value range of the ratio of the height of the blades to the outer diameter of the stator is 0.12-0.304, the value range of the ratio of the eccentricity of the crankshaft to the outer diameter of the stator is 0.0105-0.0738, and the value range of the volume of the stator is 81-522 cm < 3 >. On the premise that the refrigeration effect of the compressor is guaranteed, the size of the compressor is further reduced, the total weight is reduced, and the cold-to-weight ratio of the compressor is effectively increased.

The embodiment of the utility model discloses a motor, a rotary compressor and refrigeration equipment, the motor is characterized in that a rotor is installed in a stator, the stator comprises a stator iron core and a stator winding, the stator iron core comprises a yoke part and a plurality of tooth parts, the yoke part is annular, the plurality of tooth parts are distributed at intervals in the circumferential direction of the yoke part, and the stator winding is wound on the stator iron core. Two adjacent tooth parts and the yoke part jointly define a stator groove, and the stator winding is arranged in the stator groove; wherein the maximum distance between the outer wall of the yoke part and the circle center of the stator is R1, the maximum distance between the bottom of each stator groove and the circle center of the stator is R2, the number of the stator grooves is Q, and the number of poles of the rotor is P. The motor provided by the embodiment of the utility model can improve the structural strength of the motor, ensure the operation reliability of the motor, prolong the service life of the motor, and improve the reliability of the motor. The noise generated during the operation of the motor is reduced, the user experience can be improved, the use effect is better, and the application range is wider.

The utility model discloses a rotary compressor crankshaft machining device which comprises a vertical derusting box, the lower end of the interior of the derusting box is provided with a lower clamping assembly for installing one end of a crankshaft, the upper end of the interior of the derusting box is provided with an upper clamping assembly for installing the other end of the crankshaft, and the upper clamping assembly is driven by a driving device to rotate horizontally. An electric sliding rail is arranged on one side in the rust removal box in the height direction of the rust removal box, a sliding base is arranged on the electric sliding rail, and a sand blasting adjusting assembly is arranged on one side of the sliding base. The lower shaft end of the crankshaft is fixed in the first shaft end clamp, then the first electric rod is started according to the specific length of the crankshaft, and the second shaft end clamp is driven to descend till the second shaft end clamp can clamp the upper shaft end of the crankshaft; the servo motor can drive the two clamps and the crankshaft to rotate longitudinally and axially under the cooperation of the rotating disc and the rotating shaft, and therefore circumferential sand blasting and rust removal can be conveniently conducted on the crankshaft through the spray gun.

The utility model discloses a rotary compressor and refrigeration equipment, the rotary compressor comprises a shell, a motor and a compression mechanism, the motor and the compression mechanism are both arranged in the shell, the motor comprises a stator and a rotor, the compression mechanism comprises a crankshaft, and the crankshaft is connected with the rotor; the rotary compressor meets the following conditions: 5 < = GCD (Q, P) < = 6; q is the number of slots of the stator, P is the number of poles of the rotor, D2 is the inner diameter of the stator, D1 is the outer diameter of the stator, T1 is the thickness of a stator core of the stator, and d is the diameter of the crankshaft. According to the rotary compressor provided by the utility model, the slot number Q of the stator, the pole number P of the rotor, the outer diameter D1 of the stator, the inner diameter D2 of the stator, the thickness T1 of the stator iron core and the diameter d of the crankshaft are set according to reasonable ratios, so that the operation stability and the energy efficiency of the rotary compressor are improved.

The utility model provides a double-cylinder double-stage compressor and a refrigerating system with the same, and belongs to the technical field of air conditioning, the double-cylinder double-stage compressor comprises a shell, a pump body assembly is arranged in the shell, the pump body assembly is provided with a reciprocating compression part and a rotary compression part, the rotary compression part comprises a roller, the reciprocating compression part comprises a piston, and the piston is arranged in the shell. The pump body assembly is further provided with a crankshaft, the crankshaft is further provided with a first eccentric part corresponding to the roller so as to drive the roller to rotate, and the crankshaft is provided with a second eccentric part corresponding to the piston so as to drive the piston to reciprocate. According to the reciprocating compressor, the crankshaft with the first eccentric part and the second eccentric part simultaneously drives the rotary compression part and the reciprocating compression part to compress, so that the advantages of compact structure of the reciprocating compressor and high volume efficiency of the rotary compressor can be considered; therefore, the whole structure of the double-cylinder double-stage compressor is compact, the volume efficiency is high, the whole energy efficiency of the compressor is improved, and the refrigerating capacity of the compressor is improved.

Provided is a rotary compressor wherein a rotary compression unit (6) has: a piston rotor; a cylinder that houses the piston rotor; an upper bearing (4A) and a lower bearing that are arranged so as to sandwich the cylinder therebetween and form a compression chamber (60A) that houses the piston rotor; and a discharge valve (64) that is attached to the upper bearing (4A) and opens and closes a discharge hole (4Aa) for discharging the refrigerant compressed in the compression chamber (60A). A facing surface (4Ab) of the upper bearing (4A), facing an electric motor, is formed with a recess (4Ad) that houses the discharge valve (64). A bottom (4Ad1) of the recess (4Ad) is formed with a discharge hole (4Aa) that penetrates therethrough along the axis of rotation. The recess (4Ad) is formed with a slope (4Ad2) where the height from the bottom (4Ad1) to the facing surface (4Ab) decreases as the distance from the discharge hole (4Aa) increases.

Apparatus, systems, and articles of manufacture are disclosed to power thermal management systems with heat of a working fluid therein. Example thermal management system include: a thermal transport bus loop fluidly coupled to at least one heat source exchanger and at least one heat sink exchanger; a turbomachine including a turbine and a compressor, the turbine and compressor rotatably interlocked via a shaft, the compressor coupled to the thermal transport bus loop, the turbine including an inlet and an outlet, the inlet connected to a first point of the thermal transport bus loop via a first flowline, the outlet connected to a second point of the thermal transport bus loop via a second flowline; and a control valve coupled to the first flowline, the control valve to adjust a mass flowrate of the heat exchange fluid in the first flowline based on a speed of the shaft.

The invention discloses a rotary compressor and a refrigeration cycle device including the same. The rotary compressor includes a housing, a main bearing, a sub-bearing, a cylinder, a roller, a vane, and an injection channel provided in at least one of the main bearing, the sub-bearing, and the cylinder. A respective compression chamber may be in communication with the respective compression chamber after a compression start angle of the respective compression chamber. As a result, it is possible to minimize leakage of the injected refrigerant toward the suction port side while ensuring the maximum injection section.

To prevent an end of an insulating sheet from protruding toward the inner diameter side of a slot.SOLUTION: An insulating sheet (40) includes a base (45), a first folded portion (41), and a second folded portion (42). The length S1 of the side of the first end face (33a) of the first folded portion (41) located on the first downstream side (36b), the length L1 of the side of the first end face (33a) of the second folded portion (42) located on the first upstream side (36a), the length S2 of the side of the second end face (33b) of the second folded portion (42) located on the second upstream side (37a), and the length L2 of the side of the second end face (33b) of the first folded portion (41) located on the second downstream side (37b) satisfy the conditions of S1<L1, S1<L2, S2<L1, and S2<L2.SELECTED DRAWING: Figure 7

The utility model discloses a rotary compressor and refrigeration equipment, relates to compressor technical field, rotary compressor includes shell and set up motor subassembly, crankshaft, support subassembly and oil-gas separation piece in the shell inner cavity, motor subassembly includes stator and rotor, stator and shell connection, rotor and crankshaft fixed connection, crankshaft protrudes upwards the rotor, and the oil-gas separation piece is located in the shell inner cavity. The supporting assembly is located above the motor assembly and comprises a support and a motor bearing, the support is fixedly connected with the shell, the motor bearing is installed on the support, the oil-gas separation part is fixedly installed on the rotor, and stirring plates of the oil-gas separation part are arranged around the crankshaft and extend towards the support. According to the rotary compressor, the oil-gas separation effect can be enhanced, the oil spitting amount is reduced, and the liquid level of the oil pool is stable.

The utility model provides a horizontal compressor, in particular to a horizontal rotary compressor and a horizontal scroll compressor, the compressor comprises a compressor body and a damping unit positioned on the lower side of the compressor body, and the damping unit comprises at least one group of first damping devices; preferably, the first damping devices are a pair of damping devices symmetrically arranged on the two sides of the compressor body, and the two axes of the pair of damping devices intersect with the rotating axis of the compressor body and are perpendicular to the rotating axis of the compressor body. The utility model further provides a vehicle-mounted air conditioner comprising the horizontal compressor and a vehicle comprising the vehicle-mounted air conditioner.

The utility model belongs to the technical field of rotor type compressors, and discloses a main bearing-crankshaft structure, a pump body assembly, a compressor and an air conditioner, the main bearing-crankshaft structure comprises a crankshaft and a main bearing, a long shaft part of the crankshaft is sleeved in a main bearing inner hole of the main bearing in a matched and penetrating manner; the main bearing inner hole comprises a straight hole section and a micro taper hole section which are axially communicated, and the micro taper hole section is arranged far away from one side of the main bearing large end face of the main bearing; the diameter of an inlet of the micro taper hole section is the same as that of the straight hole section, and the diameter of an outlet of the micro taper hole section is larger than that of the inlet of the micro taper hole section; according to the utility model, a deformation avoiding space is formed between the long shaft part and the matched outer circle of the upper end part of the inner hole of the main bearing so as to accommodate the bending deformation of the long shaft part; and secondly, the oil film strength between the upper end part of the inner hole of the main bearing and the long shaft part is increased, the abrasion between the long shaft part and the upper end part of the inner hole of the main bearing is effectively reduced, and the operation reliability of the compressor pump body assembly is greatly improved.

The invention relates to the technical field of measuring and matching equipment, solves the problem that compressor matching equipment is insufficient in automation degree, and particularly discloses a rotary piston, air cylinder and blade sorting assembly line and a sorting and matching method.The rotary piston, air cylinder and blade sorting assembly line comprises an air cylinder sorting device, a piston sorting device, a blade sorting device and a component matching discharging mechanism; the component matching discharging mechanism is arranged below the discharging ends of the air cylinder sorting device, the piston sorting device and the blade sorting device. The air cylinder sorting device comprises an air cylinder feeding mechanism and an air cylinder measuring mechanism connected to the discharging end of the air cylinder feeding mechanism. The piston sorting device comprises a piston feeding mechanism, a piston measuring mechanism and a piston temporary storage warehouse which are connected in sequence; the blade sorting device comprises a blade feeding mechanism, a blade measuring mechanism and a blade temporary storage warehouse which are connected in sequence. The device is used for model selection and pairing of air cylinders, pistons and blades in rotary compressor production, the automation process is smoothly linked, and the working efficiency is high.

An electrically assisted exhaust gas turbocharger has a fresh air-conducting section, an exhaust gas-conducting section and a bearing section. A rotating assembly includes a shaft and a compressor wheel connected to the shaft. A turbine wheel is connected to the shaft for conjoint rotation. The compressor wheel is rotatably accommodated in the fresh air-conducting section and the turbine wheel is rotatably accommodated in the exhaust gas-conducting section. The shaft is rotatably mounted in the bearing section and has an electric motor with a rotor and a stator. The rotor is arranged in operative connection with the shaft. A coolant channel in the electrically assisted exhaust gas turbocharger is designed for coolant to flow therethrough. The coolant is compressed air downstream of the compressor wheel and can be fed to the compressor wheel downstream and / or upstream thereof. A sealing element is formed between the electric motor and the fresh air-conducting section.

The utility model discloses a rotor compressor silencer which comprises a silencer body, a plurality of convex petals and a plurality of concave petals are distributed on the silencer body, high-pressure pulsating gas flowing out of an air cylinder sequentially flows through the convex petals and the concave petals of the silencer, due to the change of the volumes of inner cavities of the convex petals and inner cavities of the concave petals, when the high-pressure pulsating gas flows through, propagation loss can be generated, and gas noise is reduced. A center hole is formed in the center of the silencer body, and the silencer is installed on an upper bearing of an upper shaft of a rotor compressor crankshaft in a sleeving mode through the center hole. At least one group of air outlet holes are formed in the convex flaps, and high-pressure pulsating gas is discharged after the direction of the high-pressure pulsating gas is changed; inwards-concave reinforcing ribs are arranged on the concave petals, so that the size of an inner cavity of the concave petals is further reduced, the silencing capacity of the concave petals is enhanced, meanwhile, the rigidity of the silencer is improved, and sound radiation of the silencer is reduced.

The present invention provides a rotary compressor that can raise the rollers to an appropriate height during operation. [Solution] The lower end surface of the roller (36) of the rotary compressor (1) has a horizontal surface (36a) parallel to the upper surface of the rear head (42), and an inclined surface (36b) that extends continuously from the outer circumference of the horizontal surface (36a) to the outer circumference surface (36o) of the roller (36), and is inclined so as to be located upward as it moves radially outward.

To suppress vibration of an accumulator caused by operation of a compressor.SOLUTION: A compressor unit includes a compressor (1) and an accumulator (2) adjacent to the compressor (1), and the compressor (1) includes a first casing (10) having a cylindrical first body portion (11), an electric motor (20) accommodated in the first casing (10), a drive shaft (70) driven by the electric motor (20), and a rotary compression mechanism (15) that compresses a fluid. An accumulator (2) has a second casing (60) having a tubular second body section (61) horizontally adjacent to the first casing (10), and also has outlet pipes (65a, 65b) extending from the lower part of the second casing (60) and connected to the first body section (11), wherein a first eigenvalue (s1) in the rolling direction of the accumulator (2) does not overlap with a value of n·N (where N is an integer) which is an integer multiple of the maximum rotational speed (n) of a compressor (1).SELECTED DRAWING: Figure 2

A rotary compressor is disclosed. The rotary compressor comprises a casing, a cylinder, a bearing plate, a roller, vanes and a plurality of pressing passages, wherein the plurality of pressing passages penetrate the discharge side of a vane slot from the outer peripheral surface of the cylinder, and can be spaced apart from each other in the height direction of the vane slot. Therefore, each of the pressing passages is formed at upper and lower ends or near both ends of the vane corresponding to both ends of the vane slot in the height direction, so as to ensure the straightness of the vane such that the vane can be more stably supported.

The present invention provides a flange, a pump body assembly, and a rotary compressor, wherein the flange includes a flange body, the flange body having a through hole penetrating the flange plate and the shaft neck, a flexible annular groove configured on the second end face of the flange body surrounding the opening of the through hole, the flexible annular groove comprising a first annular wall and a second annular wall spaced apart from each other, one of the first annular wall and the second annular wall being an integral structure with the flange body, and the other of the first annular wall and the second annular wall being an assembled structure with the flange body. In the present invention, one of the first annular wall and the second annular wall is connected to the flange body by assembly, and then forms the flexible annular groove together with the other annular wall integrally formed with the flange body. The assembly can form a flexible annular groove of smaller width, without requiring direct machining to form the flexible annular groove of smaller width, effectively reducing the difficulty and cost of machining the flexible annular groove and improving the machining efficiency of the flexible annular groove.

The invention relates to a screw compressor (300), comprising a compressor block having a compressor housing (312), wherein two compressor screws (312a) are received and can be rotated in the compressor housing (312), the compressor housing (312) has an upstream inlet (314) for gas to be compressed and a downstream outlet (318) for compressed gas and, during an operation of the screw compressor (300), the gas is conveyed from the inlet (314) to the outlet (318), the pressure of the gas being increased by reducing the size of a movable chamber (320), which is formed by the compressor screws (312a), in the flow direction after the chamber has passed a control edge (322). According to the invention, the compressor housing (312) has a separation between a downstream high-temperature region (324) and an upstream low-temperature region (326), a material with a reduced thermal conductivity compared to the high-temperature region (324) being present at least in the region of the separation.

The invention provides an upper flange for a rotary compressor, the rotary compressor and an air conditioner, the upper flange comprises a flange body, the flange body comprises a flange plate and an outer cylinder located on the upper end face of the flange plate, and the outer cylinder is provided with a first center through hole penetrating through the two ends of the outer cylinder in the axial direction of the flange plate; a first center through hole is formed in the outer cylinder, an inner cylinder is coaxially assembled in the first center through hole, the inner cylinder is provided with a second center through hole axially penetrating through the two ends of the inner cylinder, the second center through hole is used for being matched with a crankshaft to form a rotating friction pair, and a first oil return runner is formed between the inner circle wall face of the outer cylinder and the outer circle wall face of the inner cylinder. A spiral opening groove is formed in the hole wall face of the second center through hole, and a communicating hole is further formed in the inner barrel and communicates between the spiral opening groove and the first oil return flow channel. The first oil return flow channel is constructed on the first central through hole and the exposed surface of the inner cylinder body, so that the machining process of the groove is simplified, the machining difficulty is reduced, and the machining efficiency is improved.

The utility model discloses an air cylinder, a rotary compressor and refrigeration equipment, the outer periphery of the air cylinder is provided with a notch groove and a welding groove, the notch groove comprises a first groove wall surface, and the welding groove comprises a first welding groove adjacent to the notch groove; the connecting line of the center of the first welding groove and the center of the air cylinder is L, the connecting line of one side of the first groove wall face and the center of the air cylinder is H1, the connecting line of the other side of the first groove wall face and the center of the air cylinder is H2, the minimum included angle between L and H1 is alpha, the maximum included angle between H1 and H2 is beta, and alpha is larger than or equal to beta / 2. Alpha is larger than or equal to beta / 2, the first welding groove has enough distance relative to the notch groove, influence on the notch groove during welding can be relieved, deformation of the notch groove is relieved, overall deformation of the air cylinder is reduced, abnormal abrasion of an inner structure of the compressor caused by deformation of the air cylinder is reduced, and therefore vibration and noise are effectively reduced, and the service life of the compressor is prolonged. The operation reliability of the compressor is improved.

An electric rotary compressor (1) comprises a housing (10), an electric motor (15), and a compression mechanism (20) that compresses a coolant. The compression mechanism (20) has a rotating shaft (30) and an outer circumferential surface (21). The housing (10) has an inner circumferential surface (12). The electric rotary compressor (1) further comprises an outlet pressure region (2) defined between the inner circumferential surface (12) and the outer circumferential surface (21). The outlet pressure region (2) has an oil storage chamber (120), an outlet chamber (130), and a central chamber (140). A space between the oil storage chamber (120) and the central chamber (140) is constricted by a first convex section (100). A space between the central chamber (140) and the outlet chamber (130) is constricted by a second convex section (101).

An apparatus includes a semi-enclosed compressor housing, an electrically driven dual cylinder rolling piston rotary compressor assembly housed in the housing, motor driven electronics, and an auxiliary housing. The auxiliary housing defines a semi-closed refrigerant inlet compartment having a wall. The auxiliary housing also defines an electronics compartment that shares a wall with the inlet compartment but is semi-enclosed separate from the inlet compartment. The compressor housing is semi-closed coupled with and in fluid communication with the inlet compartment. The electronics compartment accommodates electronics.

The invention relates to the technical field of compressors, in particular to a compressor balance block, a motor assembly comprising the compressor balance block and a rotary compressor comprising the motor assembly. The compressor balance block comprises an installation ring and a balancing weight arranged on the installation ring, the installation ring is used for being connected with a motor rotor, the interior of the installation ring is through in the axial direction, the balancing weight is located on the peripheral side of the installation ring, and a gap is formed between the balancing weight and the installation ring. The balancing weight and the mounting ring are relatively independent, the balancing weight is only connected and assembled by the mounting ring and the motor rotor, and mounting holes do not need to be formed in the balancing weight, so that the sizes of the balancing weight and the mounting ring can be correspondingly reduced, and the weight of the balancing weight of the compressor is reduced; meanwhile, the distance of the balancing weight deviating from the center of the mounting ring is increased, namely, the eccentricity of the balancing weight and the center of the mounting ring is increased, and therefore the considerable balance amount and the vibration reduction effect can still be achieved under the condition that the weight of the balancing weight is reduced.

A fluid compressor system has a scavenge loss limiter that increases the efficiency of the fluid compressor system by reducing the compressed working fluid recirculated into the airend through a scavenge flow. The scavenge loss limiter includes a scavenge hole positioned at a discharge end face of a rotor cavity of the compressor housing. As a rotor of the compressor system rotates, the rotor may intermittently restrict the free-flowing scavenge flow returning from a lubricant separation tank. The rotor may be a male rotor having a plurality of male lobes. As the discharge end clearance between the rotor and the discharge end face is tightly controlled and monitored, a better control of the scavenge flow returning to the rotor cavity is achieved.

A rotary compressor (1) and an apparatus using the same are provided. A compression mechanism section (30) has a cylinder (31), a piston (32) disposed in the cylinder, and a vane (33) partitioning the cylinder. A shaft (40) has an eccentric portion (42). A vane groove (36) in which the vane is disposed is formed in the cylinder (31). The eccentric portion (42) is disposed in the cylinder. The piston (32) is fitted to the eccentric portion (42). A cylindrical groove (32a) having a circular arc angle α of more than 180° is formed in the piston (32). A cylindrical portion (33b) is formed in an end portion of the vane (33) so as to be disposed in the cylindrical groove (32a). The vane (33) operates without leaving the piston (32). The cylindrical groove (32a) is easily formed in the piston (32) by setting the Vickers hardness of the surface of the piston (32) to Hv400 or less. The piston (32) and the vane (33) have high wear resistance.

The utility model discloses a motor, a rotary compressor and refrigeration equipment, the motor comprises a stator, the stator comprises a plurality of stator punching sheets, the stator punching sheets are provided with first connecting buckles, and the stator punching sheets are connected with adjacent stator punching sheets through the first connecting buckles; the rotor is arranged on the radial inner side of the stator, and the stator is suitable for driving the rotor to rotate; the motor meets the formula # imgabs0 #, L is the minimum radial distance between the first connecting buckle and the circle center of the stator, R is the radius of the maximum outer circle contour of the stator, and the number of poles of the rotor is 2P. According to the motor provided by the utility model, the minimum radial distance L between the first connecting buckle and the circle center of the stator, the number of poles 2P of the rotor and the radius R of the maximum excircle profile of the stator punching sheet are all in reasonable value ranges, so that the efficiency of the motor is effectively improved while the structural strength of the stator core, the stability of the rotor and the power of the motor are ensured.

The present invention provides a rotary compressor comprising: a casing; a cylinder having a compression space within the inner peripheral surface thereof; a roller rotatably provided in the compression space of the cylinder; a drive motor including a stator and a rotor; and a first balance weight provided at one side on the upper surface of the rotor and a second balance weight provided at the other side on the lower surface of the rotor, wherein the first and second balance weights have an inner peripheral surface and an outer peripheral surface formed as a curved surface and, in the circumferential direction, the value of the ratio of the length of the inner peripheral surface of the first balance weight to the length of the outer peripheral surface thereof is less than the value of the ratio of the length of the inner peripheral surface of the second balance weight to the length of the outer peripheral surface thereof.