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WO/2019/230451A1 |
[Problem] To improve wear resistance of a thrust plate. [Solution] A movable scroll (25) is made of an aluminum-magnesium-silicon-based alloy and subjected to alumite treatment. Further, a thrust plate (37) is coated with a resin.
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WO/2019/227842A1 |
Disclosed are a rotary compressor, a gas compression system, a refrigeration system and a heat pump system, wherein the rotary compressor comprises: a cylinder (10), a cam mechanism (30), a sliding vane (40) and a swinging block (50). A ...
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WO/2019/229842A1 |
This compressor comprises: a shell that constitutes an outer frame; a compression mechanical unit that is housed in the shell and that constitutes a compressing chamber for compressing a refrigerant; a drive mechanical unit that is house...
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WO/2019/229901A1 |
A vane pump (12) comprises: a first housing (23) in which a cylindrical rotor accommodation section (28) is formed; a cylindrical rotor (21) that is accommodated in the rotor accommodation section (28) and rotates; and a vane (22) that i...
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WO/2019/227853A1 |
Disclosed are a rotary compressor, a gas compression system, a refrigerating system and a heat pump system. The rotary compressor comprises: an air cylinder (10), a cam mechanism (30), a slip sheet (40) and a swinging block (50); a cam p...
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WO/2019/229989A1 |
This scroll compressor comprises a stationary scroll having a stationary spiral body erectly provided on a stationary base plate and an oscillating scroll having an oscillating spiral body erectly provided on an oscillating base plate, t...
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WO/2019/224943A1 |
Provided is a screw compressor in which machine power for supplying cooling liquid to a cooling flow passage for a screw rotor is reduced. The male rotor 1A of this screw compressor is provided with: a tooth section 6A having a helically...
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WO/2019/225191A1 |
In order that operating efficiency of a scroll compressor (1) is suppressed from lowering by suppressing a lubricant oil in an annular space (45) between an outer peripheral wall (37) of a housing (30) and an Oldham ring (70) from becomi...
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WO/2019/222535A1 |
A compressor may include first and second scrolls, and an axial biasing chamber. Spiral wraps of the scrolls mesh with each other and form compression pockets including a suction-pressure compression pocket, a discharge-pressure compress...
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WO/2019/220562A1 |
A screw compressor is provided with a slide valve arranged in a slide groove to slide and move between a suction side and an ejection side in a rotation axis direction of a screw rotor. An ejection-side end surface of the slide valve is ...
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WO/2019/221400A1 |
The present invention relates to a compressor having a structure for simultaneously fastening a discharge valve, a valve stopper, and a discharge cover. A scroll compressor according to the present invention comprises: a valve seat havin...
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WO/2019/221426A1 |
The present disclosure relates to a compressor with a refrigerant injection function, which secures an amount of refrigerant in circulation and actively copes with a change in the temperature of exterior air, thereby improving cold weath...
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WO/2019/218391A1 |
A double-sided two-level dry-type vortex vacuum pump comprises a motor (1), a crankshaft (2), a movable vortex plate (4), a left fixed vortex plate (5), and a right fixed vortex plate (3). A mating cavity formed between the left fixed vo...
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WO/2019/218472A1 |
A screw rod compressor using sliding bearings, comprising a female rotor (9) and a male rotor (5); an air suction end surface of the male rotor (5) and air suction and discharge end surfaces of the female rotor (9) are provided thereon w...
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WO/2019/220924A1 |
An electrically driven compressor (10) is provided with a housing (20), a compression mechanism (30), an electric motor (40), and a main shaft (50). The electrically driven compressor is provided with a first bearing (61) which rotatably...
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WO/2019/220990A1 |
[Problem] To provide: a pressurizing mechanism component for a scroll pump, having increased durability; and a scroll pump. [Solution] A pressurizing mechanism component 2 for a scroll pump 1 is configured so that a fluid containing cham...
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WO/2019/216098A1 |
This scroll compressor has different discharge timings for a first compression chamber (S21) on the inner peripheral side of a fixed wrap (62) and a second compression chamber (S22) on the outer peripheral side, and has oil inflow groove...
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WO/2019/212598A1 |
A scroll device has a fixed scroll, and orbiting scroll, and at least one cooling chamber configured to receive coolant to cool the fixed scroll or the orbiting scroll. A flexible conduit that curves around an orbital axis of the orbitin...
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WO/2019/207760A1 |
This scroll compressor is provided with a shell which contains an orbiting scroll, and with a stationary scroll which is contained in the shell and which, together with the orbiting scroll, forms at least a first compression chamber and ...
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WO/2019/208951A1 |
A scroll compressor according to the present invention comprises: a casing; a rotation shaft positioned inside the casing; a driving unit configured to rotate the rotation shaft; and a compression unit including a first and a second fixi...
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WO/2019/207759A1 |
This scroll compressor is provided with: a frame which holds an orbiting scroll so that the orbiting scroll can orbit; a stationary scroll which, together with the orbiting scroll, forms a compression chamber which compresses a refrigera...
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WO/2019/207783A1 |
This scroll compressor is provided with: a fixed scroll that has a fixed baseplate provided with a first spiral protrusion; an orbiting scroll that forms, between the orbiting scroll and the fixed scroll, a compression chamber for compre...
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WO/2019/207785A1 |
Provided is a scroll compressor to which an injection pipe is connected. The scroll compressor is provided with: a stationary scroll which has a first base plate and a first spiral body; an orbiting scroll which has a second base plate a...
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WO/2019/207617A1 |
This scroll compressor is configured so that a refrigerant gas once taken into a hermetic container is compressed in a compression chamber. A second base plate section of an orbiting scroll has formed therein: an annular groove open to a...
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WO/2019/207784A1 |
This scroll compressor is provided with a stationary scroll, an orbiting scroll, and a thrust plate. An oil holding space is formed on the inside of the thrust plate, a compression chamber is formed between the stationary scroll and the ...
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WO/2019/208348A1 |
A rotor that provides a rotating power to a compressor unit for compressing a refrigerant comprises: a rotor core having formed through-holes (36-1 to 36-6) that have cross sections with a plurality of crotches in a direction away from a...
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WO/2019/210053A1 |
A screw compressor includes a housing, a first rotor rotatable about a first axis relative to the housing, and a second rotor rotatable about a second axis relative to the housing. The second rotor is enmeshed with the first rotor. A mot...
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WO/2019/207507A1 |
A positive-displacement compressor (1) having an automatic system for adjusting the compression ratio (Vi) and designed to be installed in a conditioning or refrigeration system for a fluid (F), said compressor (1) comprising a suction c...
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WO/2019/207945A1 |
An internal liquid pathway in this liquid supply type screw compressor includes a slit-like injection section open to a bore and injecting liquid into an operating chamber. A casing is provided with a first casing and a second casing whi...
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WO/2019/207839A1 |
A pump device according to an embodiment of the present invention is provided with a fluid passage. The fluid passage has a first connection opening which is provided at a second end of a housing, a second connection opening which is pro...
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WO/2019/208079A1 |
A compressor (10) is provided with a motor (30), a lower balance weight (133a), and partitions (133b, 133s). The motor (30) has a rotor (132) having a first end surface (E1) and a second end surface (E2). The balance weight (133a) is pro...
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WO/2019/208075A1 |
A first distance (D1) between a pair of linear portions (64, 65) in which first Oldham keys (57, 58) are respectively arranged is configured so as to become shorter than a second distance (D2) between a first connecting portion (67) in w...
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WO/2019/202976A1 |
Provided is a compressor with high compression efficiency provided by increasing the design freedom with respect to the position for connecting the introduction path and injection path of an injection flow path, improving manufacturabili...
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WO/2019/202297A1 |
A multi-stage positive displacement vacuum pump and a method of differentially pumping multiple vacuum chambers using such a pump is disclosed. The pump comprises a housing for housing at least one rotor mounted for rotation on a corresp...
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WO/2019/200945A1 |
A compressor, a refrigeration circulation system, and an air conditioner. The compressor comprises a housing (1), a first-level compression component (2), a second-level compression component (3), and a communicating pipe (4). The housin...
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WO/2019/197919A2 |
Fluid-injected compressor installation (1) which is provided with: - a screw compressor (2) with a compression housing (4) in which a pair of compressor rotors (6a, 6b) are mounted; - a drive motor (3) with a motor housing (9) in which a...
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WO/2019/198326A1 |
This rotary compressor has: a closed, vertically disposed, circular cylindrical compressor housing which is provided with a refrigerant discharge section and a refrigerant suction section, and the lower part of which contains lubricating...
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WO/2019/197927A1 |
Oil-injected screw compressor installation including a frame or underframe (2), a screw compressor element (3), electrical cabinet (6), oil separator vessel (5) and an air-cooled cooling module (8), with as characteristic that on one sid...
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WO/2019/198229A1 |
Provided is a compressor in which a compression mechanism for compressing a fluid is fixed to an internal circumferential surface of a sealed container, wherein, in the compression mechanism, a plurality of protrusions extending in the c...
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WO/2019/198932A1 |
An electric compressor according to the present invention comprises: a drive motor having a stator and a rotor; a rotary shaft coupled to the rotor to transmit the rotational force of the drive motor; a frame through which the rotary sha...
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WO/2019/193127A1 |
The rotary pump (1) comprises a driving element (4) housed in a rotor housing (31). The driving element (4) comprises a contact portion (41) comprising an spherical zone and at least one lateral driving protrusion (42) extending from sph...
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WO/2019/186374A1 |
Screw compressor element provided with a housing wherein a rotor is rotatably arranged by way of two bearings, respectively being a cylinder bearing (3) and a ball bearing (4), each provided with an inner ring (5, 6) and an outer ring (7...
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WO/2019/189085A1 |
Provided is a technology which makes it possible, in a gas compressor that generates compressed gas of a set pressure by constant velocity control, to reduce more power during "unload operation control". This gas compressor is provided w...
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WO/2019/187950A1 |
In a pre-stage machining step of a scroll compressor (10), which is a scroll fluid machine, a revolving scroll machining step and a housing machining step are performed. In a measuring step, dimensional deviations are measured in a revol...
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WO/2019/187686A1 |
This compressor is provided with: a rotating shaft; a front rotor which has a front rotor surface; an intermediate wall section which has a first wall surface facing the front rotor surface in an axial direction; and a vane which is inse...
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WO/2019/188322A1 |
The objective of the present invention is to prevent a deterioration in the strength of a screw rotor having a hollow portion, and improve cooling performance. This screw rotor has, on an outer circumference, helical teeth which extend a...
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WO/2019/189315A1 |
Provided is a highly reliable scroll compressor (10). The scroll compressor (10) comprises a case (20), a scroll compressor mechanism (50), a discharge pipe (24), a first temperature sensor (15), and a second temperature sensor (25). The...
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WO/2019/188323A1 |
The effects of pressure and heat are reduced while the mass of a screw rotor is reduced. The outer periphery of this screw rotor has helical teeth extending a predetermined length in the axial direction, wherein a diametral cross-section...
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WO/2019/187272A1 |
Provided is a rotary compressor in which a supply amount of an oil through an oil supply hole can be appropriately adjusted with a simple configuration. The present invention is provided with, inside a sealed container (10): a drive moto...
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WO/2019/180900A1 |
The compression mechanism of this hermetic compressor has a hollow cylinder, a crankshaft which is rotated by an electric motor, a rolling piston which is fitted to the eccentric shaft of the crankshaft and which rotates eccentrically al...
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