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JP7159153B2 |
The invention refers to a rotary compressor arrangement (100) comprising a stationary member (40) centered at a shaft axis (X) and a rotary member (90) rotating around the stationary member (40); the stationary member (40) and the rotary...
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JP7144316B2 |
To provide an electric motor capable of securing insulating property even when being applied to a motor compressor using PAG oil or POE oil as a lubricant oil.An electric motor 300 constituting a motor compressor 10 has a stator 310 and ...
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JP2022541763A |
one roughing vacuum pump (2) and one roots vacuum pump (3) connected in series upstream of said roughing vacuum pump (2) in the direction of the pumped gas flow (G); ), wherein the Roots vacuum pump (3) has a plurality of rotors (10) sim...
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JP2022130375A |
To provide a multi-stage compressor unit that allows an increase in flexibility for adjusting the speed of the different compressor stages depending on their respective parameters, and that is efficient both in terms of manufacturing cos...
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JP7130833B2 |
According to one embodiment, a rotary compressor includes a compression mechanism unit. The compression mechanism unit includes at least three cylinder bodies interposed between a first bearing and a second bearing, a plurality of partit...
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JP2022128522A |
To provide a vacuum pump device which enables reduction of an installation space of a vacuum pump and can be reactivated in a reliable manner.A vacuum pump device 1 includes: fixed side bearings which are disposed above a pair of pump ro...
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JP7121416B2 |
The present invention discloses a multi-stage dry Roots vacuum pump, which includes a pump body (1) and electric drive terminals. The pump body (1) at least includes one stage of Roots system; the Roots system at least includes one stage...
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JP7113091B2 |
A rotary compressor according to an embodiment includes a case, a rotary shaft, a compression mechanism, a balancer, and a balancer cover. A through-hole is formed in the balancer cover at a position of the balancer cover facing the rota...
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JP2022111689A |
To suppress intrusion of hydrogen from a gear chamber into a motor chamber.When a fuel cell hydrogen pump 10 is in operation, in a fluid circuit C1, while a pair of synchronous gears P1 rotates, the pair of synchronous gears P1 allows co...
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JP7090185B2 |
The fluid transfer apparatus includes a rotor housing for forming a fluid compression space having the shape of an epitrochoid surface; a rotor eccentrically rotates inside the fluid compression space by being eccentrically coupled to a ...
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JP2022072848A |
To suppress an increase of a pressure loss when sucking a refrigerant in a rotary compressor having a plurality of cylinders.A rotary compressor (1) is equipped with a plurality of mechanism portions (K1, K2, and K3) that respectively ha...
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JP7066495B2 |
To provide a compressor with high compression efficiency provided by increasing the design freedom with respect to the position for connecting an introduction path and an injection path of an injection flow path to improve manufacturabil...
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JP2022057367A |
To provide a technique capable of suppressing uneven distribution of oil between a plurality of compressors connected in parallel to one another via refrigerant circuits and mounted in mutually different outdoor units.An air conditioning...
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JP2022057366A |
To provide a technique for actualizing the uniformization of the amounts of oil in a plurality of compressors connected in parallel to each other via a refrigerant circuit in a higher versatile form.An air conditioning system 1 in one em...
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JP2022051100A |
To inhibit inflow of drainage into a compression part of a second stage compressor body and inhibit enlargement of a passage pipe in a compressor.The compressor includes: a first stage compressor body 10 which compresses air; and a secon...
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JP7044463B2 |
A reverse flow of a refrigerant compressed by an upper cylinder (121T) through a refrigerant path hole (136-1) is suppressed, a flow channel resistance of the refrigerant that flows through the refrigerant path hole is reduced, and deter...
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JP7042455B2 |
An electric motor (2) and a compression mechanism driven by the electric motor (2) are accommodated inside a sealed container (1), and a stator (10) of the electric motor is configured by stacking a contact stator plate (22a) that comes ...
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JP2022044311A |
To provide a rotary compressor including a rotary compression mechanism portion having a structure in which a refrigerant suction passage does not interfere with the other part disposed near the refrigerant suction passage, in addition t...
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JP7031635B2 |
A vibration isolator configured to restrict vibration generated in a vibration source from being transmitted to a vibration transmitted portion includes at least one elastic member. The vibration transmitted portion is provided with at l...
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JP7025227B2 |
An objective of the present invention is to provide a refrigeration apparatus including a two-stage type compressor of which a motor is disposed in an intermediate stage to prevent an operating fluid from being liquefied in the motor, th...
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JP7017256B2 |
Provided is a spiral fluid machine having a structure that achieves high-speed rotation and is compact. This spiral fluid machine (1) is provided, inside a housing (2), with: a drive spiral member (5) provided with at least one drive spi...
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JP7013327B2 |
According to one embodiment, a crank portion is formed from a crank piece, an element separate from a shaft portion. The crank piece includes a fitting hole in which the shaft portion is fit by predetermined “interference” and a slit...
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JP7003319B1 |
To provide a compressor and a heat exchange system capable of securing a jet force sufficient to open a discharge valve and reducing a pressure loss. In a compressor, each of a plurality of compression mechanisms abuts on a cylinder 60 h...
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JP7002033B2 |
In the two-cylinder hermetic compressor, a main bearing is disposed on one surface of a first cylinder, an intermediate plate is disposed on another surface of the first cylinder, the intermediate plate is disposed on one surface of a se...
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JP6989811B2 |
Compression chambers (23) formed between one screw rotor (40) and a plurality of gates (51) include a first compression chamber (24) where a fluid introduced into a casing (10) at a suction pressure is compressed to an intermediate press...
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JP6991077B2 |
To provide a rotary compressor and a refrigeration cycle device capable of forming a sufficient oil film between an eccentric portion and a roller.A rotary compressor has a rotary shaft; a plurality of compression mechanism part; and a p...
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JP6987754B2 |
A multi-tank dual-stage enthalpy increasing compressor comprises a lower cover plate (10), a lower flange (9), an upper division plate (4), a middle division plate (5), and at least one middle cavity volume formed between each pair of th...
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JP6970363B1 |
To provide a technique capable of uniformizing the amount of oil inside a plurality of compressors connected in series by a refrigerant circuit in a more versatile manner. A compressor 100 according to an embodiment of the present disclo...
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JP6969012B2 |
This rotary compressor has a compression mechanism part. A rotary shaft of the compression mechanism part has a plurality of crank parts positioned between a first journal part and a second journal part, a middle journal part which is pr...
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JP6961084B2 |
The compression mechanism of this rotary compressor has a cylinder which has an axial through-hole, a rolling piston which is driven by a rotating shaft and which is contained in the through-hole of the cylinder, two end plates arranged ...
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JP6961833B2 |
According to one embodiment, a rotary compressor includes a compression mechanism unit. The compression mechanism unit includes at least three cylinder bodies interposed between a first bearing and a second bearing, a plurality of partit...
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JP6955087B2 |
Provided is a rotary compressor including a compression mechanism. The compression mechanism includes: a cylinder, which has a through hole formed therein, and is configured to cause a rotary shaft to pass therethrough; a piston, which i...
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JP2021156203A |
To provide a horizontal rotary compressor that can restrain separation of vanes from piston members and restrain agitation of lubricating oil caused by reciprocation of the vanes.In a horizontal rotary compressor, a first back pressure c...
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JP6944084B1 |
To provide a rotary fluid transmission device which can be applied as a fluid transmission device having a larger capacity by improving the smoothness of operation. A circular bush is installed in a chamber of a first seat 60, an arcuate...
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JP6943345B2 |
Such a multi-stage compressor is provided that a number of valves, openings, and tubes, which are specific to two-stage compression, are arranged in an integrated manner so as to improve maintainability and compactness of the device. The...
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JP6935216B2 |
To provide a Roots type vacuum pump having high versatility and capable of efficiently preventing liquefaction and solidification of gas, and a method for operating the Roots type vacuum pump.A Roots type vacuum pump 1 comprises a plural...
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JP6927731B2 |
Provided are a closed-type compressor and a refrigeration cycle device equipped with the same, the closed-type compressor being capable of ensuring a sufficient flow passage area of a discharge flow passage for discharging a gas refriger...
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JP6930026B2 |
According to one embodiment, a rotary compressor includes a compression mechanism unit and an electric motor. The compression mechanism unit includes a first bearing, a second bearing, first to third refrigerant compression units, a seco...
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JP6926635B2 |
To provide a scroll compressor which can suppress a re-expansion loss caused by the communication of an inside compression chamber and an outside compression chamber at intermediate-pressure refrigerant discharge in an outside compressio...
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JP6926449B2 |
An upper piston (125T) of a rotary compressor (1) is formed to satisfy 0.7×Hcy1/1000 ¤ ´ro ¤ 1.2×Hcy1/1000, Cro1 ¤ 0.1, Cro2 ¤ 0.1, and Cro1×Cro2 ¤ 0.007. Here, Cro1 indicates a length (mm) of an upper side piston oute...
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JP6926637B2 |
To suppress an efficiency reduction of a compressor by preventing occurrence of excessive compression during intermediate pressure coolant discharge in an outer compression part.The present invention relates to a scroll compressor in whi...
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JP3233637U |
To provide a stacking rotor type screw compressor capable of significantly reducing the difficulty of production technology of a screw compressor by staggering and overlapping screw and female screw, achieving a certain degree of reducti...
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JP6922077B2 |
According to one embodiment, a rotary shaft of a rotary compressor includes a first connection shaft and a second connection shaft. The first connection shaft has a cross-sectional shape including a first outer surface, a second outer su...
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JP6918138B2 |
A rotary compressor comprising an electric motor, a crank shaft, a piston, a cylinder, and an injection flowpath that injects a refrigerant into a compression chamber from a refrigerant pipe in front an evaporator in the refrigerant flow...
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JP2021116724A |
To inhibit an oil from mixing into a refrigerant gas and flowing into an oil equalization pipe during pressure equalization between compressors connected to the oil equalization pipe.A compressor includes: a cover part provided in a casi...
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JP6914419B2 |
A high-pressure-chamber-type sealed electric compressor that comprises, in a sealed container: a compression mechanism part that compresses a coolant; and an electric motor that drives the compression mechanism part. The electric motor c...
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JP2021110315A |
To provide an auxiliary pump controller capable of reducing a power consumption, and a vacuum pump system.In a controller 11, a first power consumption is a power consumption required to drive a vacuum pump 10 when driving the vacuum pum...
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JP2021516949A |
The present invention provides a motor for a compressor. The motor includes a stator core (2) having a cylindrical shape, and is provided in a columnar space surrounded by a stator core (2) and a stator in which the ratio k of the inner ...
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JP6881245B2 |
This compressor which has a stationary scroll (12) and a movable scroll (11) and in which the movable scroll is rotated relative to the stationary scroll to compress fluid in multiple stages and discharge the compressed fluid is provided...
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JP2021071208A |
To return refrigerator oil to a compressor in a short time.A refrigerating device comprises: a first compressor (40); a second compressor (50); a first gas-liquid separator (11); a second gas-liquid separator (21); a first suction pipe (...
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