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JP4805151B2 |
A scroll compressor having a scroll wall arrangement with a fixed scroll having fixed scroll walls and an orbiting scroll having orbiting scroll wall, an inlet at a radially outer portion and an outlet at a radially central portion, a fi...
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JP2011214481A |
To obtain a rotary compressor capable of restraining occurrence of a vane skip phenomenon, miniaturizing a spring and improving durability.The rotary compressor comprises a first compression part having a first spring inserted through a ...
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JP2011214484A |
To improve efficiency of waste heat regeneration in a waste heat utilization device using a combined fluid machine as a part of each of a Rankine cycle circuit and a refrigeration cycle.When a cooling water temperature θ detected by a t...
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JP2011214496A |
To prevent seizure or the like due to interference of a driving shaft with a bearing or the like.A rotary compressor (10) includes a first compression mechanism (30) and a second compression mechanism (40) respectively including a first ...
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JP2011214573A |
To suppress a cost increase and structural complication to attain practical implementation of an eccentric rotation type compression mechanism carrying out four-stage compression with compression mechanisms having cylinders and annular p...
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JP4801017B2 |
A capacity-variable rotary compressor, in which a vane can be restricted by a pressure difference generated between both side surfaces of the vane when the compressor performs a saving driving, and simultaneously be restricted rapidly an...
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JP2011208618A |
To prevent working fluid for a Rankine cycle from intruding into the existence region of working fluid for a refrigerating cycle along a drive shaft.A gear pump 67 sucks the working fluid for the Rankine cycle from an upstream second flo...
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JP4797715B2 |
A compressor (20) is provided with compression mechanisms (61, 62) to have four compression chambers (61, 62, 63, 64) in total. In the compressor (20), the first compression chamber (61) and the second compression chamber (62) differ in ...
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JP4798391B2 |
A magnetically driven gear pump having a housing, a rotatable annular magnetic drive assembly magnetically coupled to but spaced from an annular driven magnet and rotor gear assembly with an annular canister disposed therebetween, and wh...
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JP2011202603A |
To provide a fluid pump device reduced in a power loss generated when a check valve for performing exhaust at an intermediate stage is opened.A check valve storage chamber 41 is connected to a third pump chamber 13 as the intermediate st...
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JP2011202604A |
To provide a fluid pump device reducing a power loss generated when a check valve for performing exhaust at an intermediate stage is opened, and also achieving easy regulation so that the power loss is minimized even in opening/closing t...
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JP4790664B2 |
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JP4789623B2 |
In a scroll compressor, an outer wall curve of a scroll lap of a fixed scroll and an inner wall curve of a scroll lap of an orbiting scroll are formed of involute curves whose basic circle radius is defined as "a", an inner wall curve of...
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JP4792947B2 |
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JP4792142B2 |
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JP2011196315A |
To provide a combined fluid machine, preventing heating in the housing of working fluid before being sucked into a pump by working fluid after being expanded to prevent occurrence of cavitation on a pump suction side.The combined fluid m...
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JP2011196212A |
To solve the following problems: when a body casing and a stator are fixed with bolts, the number of part items is increased, and cost and weight are increased.This compressor includes a motor 5 stored in the body casing 3 and a compress...
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JP2011196244A |
To solve the problems wherein, since a stator side surface and a body casing are directly fixed, vibration generated in a stator is transmitted to the body casing, thereby increasing noise.This compressor includes a motor 5 stored in the...
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JP2011196203A |
To provide a compressor and an air conditioner, which reduce a suction pressure loss when a refrigerant in a compression vessel is sucked into compression mechanisms.This compressor 4 includes a low-stage compression mechanism 50 and a h...
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JP4779889B2 |
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JP4780971B2 |
A high inner pressure type multistage compression system rotary compressor whose object is to improve sealability of a first rotary compression element (32) and which includes a second rotary compression element (34) having a displacemen...
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JP2011185194A |
To provide a compressor which improves the pressure resistance of a casing in a simple manner as compared with a conventional compressor without applying complicated after-treatment work to respective suction holes as in the past.The com...
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JP4777217B2 |
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JP4778772B2 |
To provide a further suitable rotary compressor for improving energy efficiency by restraining a pressure variation generated in a delivery space of an intermediate vessel. This rotary compressor 1 has a rotary type low pressure side com...
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JP4777541B2 |
A compressor with a built-in electric motor has a compression mechanism and the built-in electric motor which are housed in a container. A suction port, a discharge port, inner and outer electric connection parts, and-mounting legs of th...
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JP2011179394A |
To provide an inexpensive multicylinder compressor with high efficiency, by suppressing interference between conduits in the vicinity of an inlet of an accumulator outlet pipe, without an increase in size of the accumulator.A compression...
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JPWO2009136488A1 |
A sub-compressor (23) is installed between the compressor (22) and the power recovery machine (24), and the refrigerant after pre-compression by the sub-compressor (23) flows into the compressor (22). Since the sub-compressor (23) and th...
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JP2011174401A |
To solve problems that an abnormal sound is produced by deforming a lower vessel by gas pressure applied to the inside of a hermetic vessel when connecting an accumulator to a compressor to be operated and inclining an outlet pipe to com...
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JP4767625B2 |
The invention reduces power consumption and makes a rotor with ease. As illustrated in FIG. 2, a multistage roots pump (1) in the invention includes upstream rotors (R1a, R1b, R2a, R2b) having multiple teeth, supported by a pair of revol...
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JP4765910B2 |
A casing (31) contains a compression mechanism (50) for compressing refrigerant, an expansion mechanism (60) for expanding refrigerant, and a rotary shaft (40) connecting the compression mechanism (50) and the expansion mechanism (60). A...
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JP4765911B2 |
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JP4768455B2 |
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JP4766872B2 |
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JP2011169257A |
To stop waste heat recovery by adequately grasping whether or not the pressure of a working fluid for a rankine cycle is abnormal.A pressure sensor 53 connected with a first flow passage 42 senses the pressure inside the first flow passa...
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JP4760743B2 |
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JP4757431B2 |
On the assumption that pressure Pm1 (MPa) of a boss portion outside space determined by a restrictor and a flow regulating valve provided midway in an oil feed passageway is expressed by Pm1=Ps+ alpha , and a differential pressure value ...
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JP4754061B2 |
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JP4749729B2 |
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JP4750551B2 |
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JP4747437B2 |
A Roots pump rotates a plurality of rotors (23-32) by a pair of rotary shafts (19, 20) to draw gas. Each rotary shaft (19, 20) extends through a rear housing member (14) of the Roots pump. A plurality of stoppers (67, 68, 72) are located...
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JP4744305B2 |
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JP4744331B2 |
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JP4741992B2 |
The invention downsizes and simplifies structures of a compressor and its driving system apparatus, and achieves a reduction of a noise. An oil free screw compressor is constituted by compressor main bodies compressing a gas, a motor dri...
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JP4745208B2 |
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JP4726444B2 |
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JP2011137376A |
To provide a fluid machine equipped with an axial gap motor, which avoids the insufficiency of refrigerating machine oil supplied to respective sliding parts.The fluid machine includes: a casing (11) dividing an upper space (S1) axially ...
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JP2011137402A |
To improve compressing performance in a hermetic compressor wherein lubricating oil and a compression mechanism part are stored in a sealed case, the sealed case has low pressure inside, and gas refrigerant is compressed by the compressi...
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JP4715281B2 |
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JP4719432B2 |
THE OBJECT OF THE INVENTION IS TO PROVIDE AN AIR CONDITIONER USING A ROTARY COMPRESSOR (1) THAT PREVENTS A DECLINE IN PERFORMANCE CAUSED BY THE FLUCTUATION OF THE INTERMEDIATE PRESSURE AND THE INTERFERENCE BETWEEN THE INTERMEDIATE PRESSU...
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JP4713059B2 |
The invention concerns a vacuum pump consisting in the assembly of two stator half-shells (101, 102) and two directly mounted end parts (31, 32) with an interposed single-piece continuous pressure seal (33). The pressure seal (33) compri...
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