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Patent Searching and Data


Matches 901 - 950 out of 37,925

Document Document Title
WO/2017/212527A1
The scroll compressor satisfies the relationship δ1 > δ2, wherein δ1 represents the axial length of clearance gaps between the tip part of a spiral body of an orbiting scroll or of a stationary scroll and a baseplate of the other scro...  
WO/2017/212598A1
The hermetic compressor comprises: a hermetic container; an electric motor unit disposed inside the hermetic container; and a discharge port for discharging refrigerant gas compressed by a compression mechanism unit into the hermetic con...  
WO/2017/213060A1
This hermetic compressor is provided with a compression mechanism section for compressing a gas medium. The compression mechanism section has: a first discharge valve mechanism for discharging to a first sound deadening chamber a gas med...  
WO/2017/208833A1
Provided is a scroll-type fluid machine with which it is possible to improve sealing properties in a specific area of the scroll while reducing management accuracy of clearance in the direction of extension of the central axis between bo...  
WO/2017/210594A1
A scroll compressor lubrication system and a scroll compressor are disclosed. The scroll compressor includes a capacity modulator, a lubricant opening, and a gas diverting passage. The capacity modulator is in fluid communication with co...  
WO/2017/208489A1
Provided is a scroll compressor having: a first compression mode in which fluid is compressed between the inward-facing surface of the spiral tooth of a stationary scroll and the outward-facing surface of the spiral tooth of an orbiting ...  
WO/2017/208455A1
The scroll compressor of the present invention is provided with: an airtight container; a fixed scroll which has a first winding protrusion and is disposed inside the airtight container; a fluctuation scroll which has a second winding pr...  
WO/2017/208829A1
The purpose of the present invention is to improve airtightness of an operating chamber without increasing the human resources needed for management. A tip seal 40 is set in such a manner that in at least part of the region from one end ...  
WO/2017/202673A1
Stator (2) for a dry type vacuum pump (1), the vacuum pump (1) comprising at least two rotors (10, 11) that are designed to rotate synchronously and in opposite directions in a central chamber (3) of the stator (2) in order to drive a ga...  
WO/2017/203923A1
A scroll compressor according to the present invention can suppress seizing at the sliding surface between an Oldham coupling and a movable scroll, and has high reliability. The scroll compressor (101) is equipped with a movable scroll (...  
WO/2017/203642A1
This screw compressor is provided with a casing, a screw rotor that rotates inside the casing and that has a plurality of screw grooves in the outer peripheral surface, and one gate rotor that has teeth which engage with the screw groove...  
WO/2017/203608A1
A refrigeration cycle device is provided with: a refrigerant circuit; liquid injection piping that branches from piping between a condenser and a pressure-reducing device of the refrigerant circuit, the liquid injection piping being conn...  
WO/2017/202385A1
A vortex compressor, comprising a fixed vortex (150) and an orbiting vortex (160); the fixed vortex (150) comprises a fixed vortex end plate (154) and a spiral-shaped fixed scroll (156) extending from the fixed vortex end plate (154); th...  
WO/2017/199733A1
The hermetic compressor comprises a compression mechanism unit and an electric motor unit. The compression mechanism unit includes: multiple cylinders; a first bearing and a second bearing which are arranged so as to sandwich the cylinde...  
WO/2017/199435A1
This scroll compressor comprises a slider including: a cylindrical part rotatably supported by an orbiting bearing provided to an orbiting scroll; and a balance weight part connected to the cylindrical part. When a direction opposite fro...  
WO/2017/199588A1
This scroll compressor comprises a slider including: a cylindrical part rotatably supported by an orbiting bearing provided to an orbiting scroll; and a balance weight part connected to the cylindrical part. When a direction opposite fro...  
WO/2017/199380A1
In the present invention, an injection pipe, which is a portion of refrigerant piping connecting a compressor with a condenser and which causes a refrigerant flowing out of the condenser to split therefrom to flow into the compressor, ha...  
WO/2017/194508A1
The invention relates to a screw pump (1), in particular a dual screw pump, comprising a housing (2, 2a, 2b) and at least two coupled, chamber-forming rotors (3, 3a) having respectively at least one at least regionally threaded profile (...  
WO/2017/195272A1
The purpose of the present invention is to provide a scroll fluid machine configured so that, during maintenance, grease can be easily supplied to a bearing regardless of an installation environment, thereby improving work efficiency. Th...  
WO/2017/187519A1
The compressor according to the present invention is for use in a refrigerant circuit in which a mixed refrigerant containing 1,1,2-trifluoroethylene is enclosed. The compressor is provided with a compressing mechanism having formed ther...  
WO/2017/188702A1
A means for controlling back pressure in a scroll compressor according to the present invention relates to a means for controlling back pressure in a scroll compressor, which regulates back pressure applied to an orbiting scroll and a fi...  
WO/2017/188573A1
A scroll compressor according to the present invention may comprise: a casing; a driving motor disposed in an inner space of the casing; a rotating shaft coupled to a rotor of the driving motor and rotating along with the rotor; a frame ...  
WO/2017/188558A1
A scroll compressor according to the present invention comprises: a casing including oil provided in a lower space therein; a driving motor provided so as to be spaced at a predetermined gap from an upper end of the casing such that an u...  
WO/2017/188574A1
A scroll compressor according to the present invention comprises: an orbiting scroll having an orbiting wrap and performing an orbiting motion; and a fixed scroll having a fixed wrap engaged with the orbiting wrap so as to form a compres...  
WO/2017/188576A1
A scroll compressor according to the present invention comprises: a casing in which oil is contained at a lower part thereof; a driving motor provided in an inner space of the casing; a rotary shaft coupled to a rotor of the driving moto...  
WO/2017/188575A1
A scroll compressor according to the present invention comprises: an orbiting scroll having an orbiting wrap and performing an orbital movement; and a fixed scroll having a fixed wrap engaged with the orbiting wrap so as to form a compre...  
WO/2017/188557A1
A scroll compressor according to the present invention comprises: a motor unit providing driving force; an orbiting scroll made to orbit by the motor unit; a fixed scroll coupled to the orbiting scroll to define a compression chamber tog...  
WO/2017/187816A1
The rotary cylinder type compressor (1) comprises: a cylinder (21) disposed inside a housing (10) in a rotatable manner; and a cylindrical rotor (22a, 22b) disposed inside the cylinder and rotating about an eccentric axis with respect to...  
WO/2017/189022A1
A modular rotor assembly for a screw pump including a power rotor and an idler rotor having respective first ends adapted to be disposed in a suction side of the screw pump and respective second ends adapted to be disposed in a discharge...  
WO/2017/189090A1
A positive displacement device includes a first cylinder, a second cylinder disposed within the first cylinder, and a third cylinder disposed around the first cylinder. An interior surface of the first cylinder and an exterior surface of...  
WO/2017/183412A1
The objective of the present invention is to reduce loss factors that occur inside an oil-cooled screw compressor and to improve energy efficiency. In oil-cooled screw compressors, compression is carried out by reducing the volume of an ...  
WO/2017/183330A1
Provided is a rolling cylinder-type positive displacement compressor comprising: an orbiting piston having a slide groove; a rolling cylinder having a cylinder groove; a stationary cylinder having an affixed pin; a piston orbiting drive ...  
WO/2017/183615A1
This scroll compressor ensures the sufficient sliding length of a key part of an Oldham coupling, and thus has high reliability. The scroll compressor (101) is provided with a movable scroll (26) having a first key groove (26d); a statio...  
WO/2017/181335A1
A rotary compressor comprises a cylinder body (100), a front cylinder cover (200), and a rear cylinder cover (300). An off-center rolling rotary compression device (P) is disposed in a cylinder (140) of the cylinder body (100). The off-c...  
WO/2017/179714A1
A hermetic two-stage compressor is equipped with a scroll compressor (13) that further compresses a refrigerant (R) discharged from a rotary compressor (12), and is arranged above an upper bearing (31) having a bearing main body (31a) su...  
WO/2017/174130A1
Screw compressor comprising a compressor housing (12) with a screw rotor chamber which is arranged therein, two screw rotors (26, 28) which are arranged in the screw rotor chamber, are mounted such that they can be rotated in each case a...  
WO/2017/174129A1
The invention relates to a refrigerant compressor unit, comprising a compressor housing (52), at least one compressor unit (62), which is arranged in the compressor housing and can be moved by means of bearing and driving parts (68, 72, ...  
WO/2017/174059A1
A positive-displacement machine comprises a stator housing (12) having at least one inlet (3) and at least one outlet (4) for a fluid, a rotor (13) having at least one radial appendage (5) being mounted in said stator housing. A gap (10)...  
WO/2017/175945A1
A motor-operated compressor includes a casing having an inner space in which a driving motor, an orbiting scroll and a fixed scroll are accommodated, and a controller provided outside the casing. The casing includes an intake hole formed...  
WO/2017/175298A1
A screw compressor according to the invention includes: a casing body having a cylindrical inner cylinder surface part; a screw rotor stored in the inner cylinder surface part and having a plurality of screw grooves on the outer circumfe...  
WO/2017/174131A1
Compressor unit comprising a screw-type compressor (10) with a compressor housing (12), with a screw rotor chamber which is arranged in the compressor housing, two screw rotors (26, 28) which are arranged in the screw rotor chamber and a...  
WO/2017/165950A1
This invention discloses an improved rotary vane vacuum pump. The vacuum pump includes an enlarged inlet port which is spread over the width and length of the stator in a zig‐zagging fashion within which the vanes pass. In a preferred ...  
WO/2017/168673A1
A scroll compressor comprising: a crank shaft (6) having an oil passage (63) through which a lubricating oil (9) flows; an orbiting scroll (32) attached to the crank shaft (6); and a frame (2) having a thrust plate (216) as a thrust bear...  
WO/2017/169041A1
Provided is a scroll-type fluid machine wherein the reliability can be improved with regard to abrasion of a power transmission mechanism having pin members and ring members. This scroll-type fluid machine is equipped with a driving scro...  
WO/2017/169595A1
A screw compressor (1) is provided with: a first compressor body (11) driven by a first motor (12) through an inverter; a second compressor body (21) driven by a second motor (22) through an inverter; and an intercooler (30), on the uppe...  
WO/2017/168672A1
Provided is a scroll compressor equipped with: a crank shaft (6) having an oil passage (63) through which lubrication oil (9) flows; an orbiting scroll (32) attached to the crank shaft (6), the orbiting scroll (32) having a second intern...  
WO/2017/168631A1
A scroll compressor comprises: a compression mechanism 3 having a stationary scroll 31 and an orbiting scroll 32; a crankshaft 6 for causing the orbiting scroll 32 to orbit relative to the stationary scroll 31; a slider 71 having cylindr...  
WO/2017/169596A1
A scroll compressor comprising: a crank shaft having an oil passage through which lubricating oil flows; an orbiting scroll attached to the crank shaft and having a disk-shaped substrate; and a frame having a thrust surface that slides w...  
WO/2017/163827A1
Provided is a scroll compressor wherein a load detection means, and a control valve that operates in accordance with the load detected by the load detection means and controls back-pressure of the movable scroll, can be arranged in proxi...  
WO/2017/163814A1
Provided is a scroll-type compressor capable of appropriately lubricating a sliding site inside a scroll unit. The scroll-type compressor 100 includes: a housing 10 having an intake chamber H1 and a discharge chamber H2; a scroll unit 1 ...  

Matches 901 - 950 out of 37,925