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WO/2021/142328A1 |
A drive for a mobile compressor includes EMI and transient protection circuits, second chokes, converters and an inverter. The EMI and transient protection circuits include respectively common mode chokes and at least one component. Each...
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WO/2021/142327A1 |
An economizer control system includes a compressor including a compression area, a piston chamber, and an economizer inlet configured to receive economizer vapor into the compression area via a flow path that extends between the economiz...
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WO/2021/135276A1 |
A magnetic suspension bearing, a compressor, and an air conditioner. One of the magnetic suspension bearings comprises a radial stator (1); the radial stator (1) has a plurality of stator teeth (11) extending radially inwardly thereof, a...
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WO/2021/130029A1 |
A vacuum pump exhaust coupling is disclosed. The exhaust coupling comprises: an exhaust conduit extending between an inlet aperture for receiving a fluid from the vacuum pump and an outlet aperture for exhausting the fluid from the exhau...
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WO/2021/129707A1 |
A muffler combination apparatus for a fuel cell exhaust system, the apparatus comprising a first muffler and a second muffler, which are connected by means of a conduit (4). The first muffler comprises a first muffler housing and a first...
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WO/2021/131288A1 |
A pump device (1) is provided with a piezoelectric pump (10), an external housing (70), and an adhesive sheet (80). The piezoelectric pump (10) has a main surface (402) including a discharge port (41) for a fluid. The external housing (7...
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WO/2021/132445A1 |
Provided is a refrigerant compressor comprising an oil pump capable of drawing up lubricating oil in an oil pan and then supplying the oil to a sliding location, regardless of the direction of rotation of a rotating shaft. The present in...
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WO/2021/124625A1 |
The purpose of the present invention is to provide a dynamic vibration absorber which is able to facilitate reduction in size of a compressor and reduction in noise and vibration, to thereby achieve high reliability. The present inventio...
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WO/2021/119682A1 |
The invention relates to a hermetically encapsulated refrigerant compressor (100) comprising: a housing (10) having a lower part (11) and a cover (12), wherein the cover (12) can be connected to the lower part (11); an electrical connect...
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WO/2021/119794A1 |
Cylinder cover for reciprocating compressor, the cylinder cover comprising: at least a first expansion chamber (1) and at least a second expansion chamber (2) fluidly connected to each other by means of at least one communication duct (3...
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WO/2021/126212A1 |
A reciprocating compressor includes a compressor cylinder defining a cylinder wall, a valve bore formed in the cylinder wall, and a compressor valve assembly arranged in the compressor cylinder. The compressor valve assembly includes a v...
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WO/2021/119683A1 |
The invention relates to a hermetically encapsulated refrigerant compressor (1) comprising a cylinder (3), a piston (4) arranged in the cylinder (3), said piston having a piston axis (4a), a valve plate (5) having a suction valve opening...
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WO/2021/124087A1 |
A multi-cylinder reciprocating compressor for cooling systems and/or conditioning systems and/or heat pumps, comprising a casing, in which at least one first group of at least three cylinders is provided, in which cylinders respective su...
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WO/2021/120920A1 |
A winding temperature determining method and starting method for a three-phase compressor, and an air conditioner, relating to the technical field of compressors and aiming at solving the problem of how to accurately determine the intern...
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WO/2021/113943A1 |
A reciprocating hermetic compressor comprises: an assembly block (10); a rotating shaft (20) comprising at least one inner axial channel (21), said inner axial channel (21) connected to at least one inner radial channel (22a, 22b) or to ...
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WO/2021/117601A1 |
Provided is a shaft seal that is able to reduce rotational torque and that has excellent sealing properties. A shaft seal 1 is an annular shaft seal that is attached to the outer-circumferential surface of a rotary shaft 6, thereby seali...
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WO/2021/114960A1 |
A refrigerator (1), comprising a refrigerator body (2) that defines a storage compartment, a low pressure storage unit (15) accommodated within the storage compartment, and a vacuum pump (22) in communication with the low pressure storag...
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WO/2021/112105A1 |
In this sealed refrigerant compressor, a thrust bearing (for example, a thrust ball bearing (210)) is provided on a thrust surface (136) of a main bearing (134). In the sliding surface of the main bearing (134), an end section on a compr...
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WO/2021/109898A1 |
A double-phase winding power-on heating method of a three-phase compressor (3). The method comprises the steps: acquiring a last power-on winding combination of the three-phase compressor (3); and on the basis of an acquired result, enab...
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WO/2021/111546A1 |
A compressor according to the present invention is provided with: a compression mechanism part that ejects a refrigerant compressed therein from an ejection port; a sealing container in which the compression mechanism part is accommodate...
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WO/2021/111853A1 |
A compressor (1) compressing fluid is provided with a conductive first casing (4) and conductive first pipes (3b, 3c). The first pipes (3b, 3c) are fixed to the first casing (4) via a first insulator (42).
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WO/2021/104877A1 |
The invention relates to a compressor system (1) for a rail vehicle, having: a compressor (10), a cooling device (40) and a control device (30) or an interface for receiving control signals of a control device (30), wherein the control d...
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WO/2021/106903A1 |
According to the present invention, a lubricating oil has a kinematic viscosity at 40°C ranging from 1 mm2/S to 7 mm2/S and an average mass molecular weight ranging from 150 to 400, the lubricating oil containing 0.5 mass% or more of a ...
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WO/2021/106145A1 |
An oil supply system for a compressor according to one embodiment comprises an oil separator connected to a discharge pipe of the compressor, an oil tank for receiving oil from an oil reservoir of the oil separator, an oil pipe provided ...
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WO/2021/106989A1 |
An oil supply system for a compressor according to one embodiment of the present invention comprises: an oil separator connected to a discharge piping of the compressor; an oil tank for receiving oil from an oil reservoir in the oil sepa...
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WO/2021/104707A1 |
The invention relates to an electromotively driven assembly (1) for a vehicle, having at least one electric drive unit (2) comprising at least one drive shaft (3) with an axis of rotation (D), the drive shaft (3) engaging by way of an in...
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WO/2021/103774A1 |
A fixing support for a vacuum pump (17), comprising a support base (1). A first U-shaped connecting block (2) is fixedly installed on the top of the support base (1). A second U-shaped connecting block (4) is fixedly connected to the top...
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WO/2021/106329A1 |
[Problem] To enhance oil separation performance. An oil separation structure 55 comprises a partition member 62 that partitions the inside of a separation chamber 42 in the up-down direction. The partition member 62 has: a cylindrical su...
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WO/2021/103771A1 |
An oil-gas separation device for a vacuum pump comprises a box body (1). Two sides of the top part of the box body communicate with the bottom parts of air outlet pipes (2). The inner wall of the top part of the box body is fixedly conne...
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WO/2021/097505A1 |
The invention relates to a compressor (10) for compressing gases, in particular hydrogen, comprising a compression unit (1) and a pressure generation unit (2), wherein the compression unit (1) has a low pressure chamber (11) and a high p...
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WO/2021/098424A1 |
A crankshaft (100), comprising a first shaft (110), a second shaft (130), and a first crank arm (120). A first oil passage (111) is formed in the first shaft (110) along an axis direction thereof; a second oil passage (131) is formed in ...
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WO/2021/098423A1 |
A crankshaft (100), comprising: a first shaft (110), a second shaft (130), a first crank arm (120), a second crank arm (140) and a recess portion (121). The first crank arm (120) is provided at one end of the first shaft (110), a first o...
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WO/2021/095151A1 |
Provided are a compressor and the like in which outflow of lubricating oil is suppressed. A compressor (100) is provided with: an electric motor (7) including a stator (7a) and a rotor (7b); a crankshaft (4) which rotates integrally with...
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WO/2021/097206A1 |
Disclosed embodiments include a reconfigurable multi-stage gas compressor having a first-stage compression cylinder, a second-stage compression cylinder, and two stepped cylinders. Each of the stepped cylinders include first and second c...
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WO/2021/096384A1 |
The invention relates to delivery systems for air and refrigeration compressors, as well as for vacuum pumps and heat pumps (compressors, inter alia, of the rotary piston and piston type). A delivery system for a rotary piston compressor...
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WO/2021/091002A1 |
The present invention relates to a hermetic compressor comprising: a crankshaft rotated by a driving unit; an eccentric pin installed in an upper end of the crankshaft to be eccentric with respect to the shaft of the crankshaft; a weight...
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WO/2021/081608A1 |
An arrangement for supporting compressor in a refrigeration equipment is disclosed, said arrangement including at least one damping element specially adapted for attaching a reciprocating compressor in a refrigerator and at least one int...
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WO/2021/084937A1 |
[Problem] To provide an anti-vibration support leg member with which it is possible to mount a device on an installation surface appropriately even when the installation surface for mounting the device is smaller than the lower surface o...
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WO/2021/081610A1 |
The present invention refers to an arrangement for supporting compressor in a refrigeration equipment and, more particularly, a support arrangement including at least one damping element specially adapted to attach a reciprocating compre...
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WO/2021/081609A1 |
The present invention refers to an arrangement for supporting compressor in a refrigeration equipment and, more particularly, a support arrangement including at least one damping element specially adapted to attach a reciprocating compre...
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WO/2021/077640A1 |
A connecting structure, an exhaust silencer, an exhaust, and a compressor, the connecting structure comprising: a connecting shell (10), a silencing cavity (12) being formed in the connecting shell (10), and a sealing part (14) being for...
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WO/2021/078820A1 |
The invention relates to a packing seal (12) for a piston compressor, comprising a longitudinal axis (L) and a fastening part (12c) and a cylindrical part (12p) arranged one behind the other in the direction of the longitudinal axis (L),...
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WO/2021/079841A1 |
Provided is a method for continuing the operation of an electric compressor even if the magnitude of ripple voltage exceeds a predetermined threshold value. A control device of an electric compressor is provided with: a detection unit fo...
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WO/2021/077187A1 |
The present invention relates to a suction passage connection system of the type that comprises an acoustic suction filter (4) and a suction conduit (3); the connection system being more precisely used in the communication of refrigerant...
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WO/2021/077304A1 |
A silence air pump box (1), comprising a box body (3), an upper cover (2), a supporting platform (11), an air pump (12), an air valve (16), an air pipe (13), and a silencing pipe (15). An intelligent adjusting mattress (4) comprises the ...
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WO/2021/077185A1 |
The present invention relates to a suction passage connection system of the type that comprises an acoustic suction filter and a suction conduit; the connection system being more precisely used in the communication of refrigerant fluid b...
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WO/2021/077186A1 |
The present invention relates to a connection system for a hermetic compressor of the type that comprises a suction acoustic filter, the connection system being provided between the compressor suction port and the inlet of the suction ac...
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WO/2021/078781A1 |
The piston compressor (1) for compressing a gas comprises a cylinder (2) and also comprises a piston (3), a piston rod (16), packing (12), a crosshead (17) and a drive (21), wherein: the piston (3) is disposed for movement in a longitudi...
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WO/2021/075354A1 |
A motor (40) comprises nine teeth (44b) and slots (44d), and has five first passageways (101) formed therein. In this way, it is possible to reduce noise more than when nine first passageway (101) are formed, while suppressing oil rise a...
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WO/2021/073225A1 |
Disclosed is an air valve for a direct-current variable-frequency compressor unit, the air valve comprising an air valve main body (1), an air cavity (2) is provided in one side of the air valve main body (1), a first main air hole (3) i...
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