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JP6688972B2 |
According to a scroll compressor of the present invention, a fixed scroll mirror plate 11a is provided with an intermediate pressure extraction hole 41 through which intermediate pressure of a compression chamber 15 is taken out, an inte...
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JP6677515B2 |
The oil-free screw compressor includes: a screw rotor, a bearing configured to support a rotor shaft, a shaft seal device including an oil seal arranged at a position closer to the bearing and a gas seal arranged on at a position closer ...
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JP2020051339A |
To reduce the mixed amount of other fluids into a coolant.A scroll compressor 100 includes: a bearing device 9A which supports a rotary shaft 4 rotating about an axis O1; a driving portion 3 which drives the rotary shaft 4; a compressing...
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JP6674448B2 |
Vacuum pumpof the rotating vane type comprising: - a housing (4) defining a cavity (18) having an inlet and an outlet, - a drivable vane member (20) for a rotary driven movement inside the cavity (18), - a rotor (30) inside the cavity, -...
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JP6651615B2 |
Transmission between a combustion engine with a crankshaft and a compressor element with driven shaft, whereby this transmission includes a housing and at least one driven gear and driveshaft with a drive gear, wherein the driveshaft of ...
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JP2020502410A |
The present invention relates to a vacuum pump system including a main vacuum pump (10) connected to a vacuum chamber (14). An auxiliary pump (12) is connected to the outlet of the main vacuum pump (10). Further, a closed gas supply devi...
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JP2020007910A |
To provide an electric scroll compressor capable of suppressing vibration and noise.A motor housing 10 is formed in a bottomed cylindrical shape. A middle housing 30 is abutted on or fixed to the inner wall of the motor housing 10. A mov...
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JP6625388B2 |
An object of the present invention is to achieve favorable sealability by a simple and low-cost structure using an O-ring. A sealing structure according to the present invention is provided with: a first sealing surface formed in an annu...
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JP6622527B2 |
A scroll fluid machine includes fixed and orbiting scrolls which form a compression chamber; a land which divides the compression chamber into first-stage and second-stage compression chambers; a wrap groove formed in a spiral shape alon...
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JP2019211055A |
To provide a seal member which prevents excessive frictional heat from being generated between the seal member and a rotary shaft to attain stable sealing performance for a long time even if the rotary shaft rotates at high speed.A seal ...
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JP6611468B2 |
A scroll compressor, comprising: an orbiting scroll (7), a fixed scroll (8), an anti-rotation mechanism (10), a support (9), a crankshaft (12) provided with an eccentric pin portion (12c) which is eccentric with respect to an axis, the c...
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JP2019178678A |
To suppress enlargement in an axial direction of a rotating shaft by restricting movement toward a back pressure chamber, of a seal member without using a separate member such as a circlip.A seal member 50 has a contact portion 54 capabl...
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JP2019143598A |
To provide a vane type compressor which enables reduction of the number of fastening tools for fastening housing members to each other.A vane type compressor 10 includes: a first housing member 13 provided with a cylinder part 14; a seco...
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JP2019120149A |
To enable restoration in a case where a movable scroll (70) turns over, in a scroll compressor comprising a stationary scroll (60) and the movable scroll (70).A scroll compressor comprises: a high-pressure introduction passage (54) capab...
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JP2019100245A |
To excellently lubricate a lip seal and a drive bearing in a case of using a slide bearing as the drive bearing and a main bearing, in a scroll compressor.A first lubrication flow passage 101 is provided in a main bearing attachment part...
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JP6522156B2 |
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JP6518447B2 |
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JP2019074025A |
To provide a tip seal for a scroll compressor that can reduce frictional force between a scroll member and a tip seal while maintaining sealability to contribute to energy saving for a scroll compressor.A tip seal 1 has a swirl shape for...
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JP2019044680A |
To provide a motor compressor which achieves reduction of manufacturing costs and weight and can secure airtightness of a housing chamber in a highly reliability manner.A motor compressor of the invention includes: a compression mechanis...
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JP6481399B2 |
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JP2019506569A |
Scroll pump tip seal that seals the single-stage scroll pump including the first scroll and the second scroll. The tip seal is formed of a plurality of seal segments (46 (1) to 46 (n)) attached end-to-end to the tip surface (34) of the s...
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JP2019506568A |
The scroll pump tip seal (146), which is attached to the tip surface (34) of the scroll wall (28) of the first scroll of the scroll pump and seals between the tip surface and the base plate of the second scroll of the scroll pump, is Inc...
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JP2019506570A |
A scroll pump tip seal (246) that is attached to the tip surface of the scroll wall of the first scroll of the scroll pump and seals between the tip surface and the base plate of the second scroll of the scroll pump. The tip seal is made...
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JP3220342U |
To provide a roots blower capable of extending a life in response to various problems generated when sucking and discharging an acid gas or an acidic liquid. The roots blower B of the present invention has an inner air portion 3 provided...
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JP6469549B2 |
An oil-free screw compressor has a screw rotor including a screw and a shaft, a bearing supporting the shaft, a first shaft seal device disposed between the screw and the bearing and including a first seal opposite to the shaft, and a fi...
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JP2019019772A |
To inhibit deterioration of sealability and ongoing wear of a seal part for partitioning a center side high pressure chamber formed on a back surface of a revolving scroll from a back pressure chamber.A scroll compressor includes: a clos...
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JP6461504B2 |
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JP6456262B2 |
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JP6430718B2 |
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JP2018532943A |
The present invention relates to a dry vacuum pump comprising a pump housing forming a plurality of suction chambers, wherein a rotor element is arranged in the suction chamber to carry the pump medium from the high vacuum side inlet to ...
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JP6402648B2 |
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JP6387997B2 |
A fluid machine includes a housing, an electric motor, a drive circuit that includes a heat-generating component and drives the electric motor, a cover that defines an accommodation chamber, which accommodates the drive circuit, with the...
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JP6386416B2 |
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JP6382877B2 |
An object is to provide a vane pump that restrains an increase in number of parts and that easily provides sufficient sealability of a sliding interface. A vane pump (1) includes: a housing (2) having a pump chamber (C); a rotor (3) havi...
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JP6381795B2 |
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JP2018523776A |
The present invention relates to a multistage vacuum pump with first and second half-shell stator parts 102,104 and end stator parts 122,124 assembled along longitudinal extending surfaces 118,120 that define multiple pump chambers and c...
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JP6374830B2 |
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JP6371086B2 |
An upper back pressure type scroll compressor (100) is provided having a back pressure chamber. The scroll compressor (100) may include a casing (110), a discharge cover (102), a main frame (120), a first scroll (130) supported by the ma...
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JP2018119522A |
To provide a scroll type compressor which enables reduction of an axial dimension of a discharge cylinder while being able to supply a lubricant when an outer peripheral surface of the discharge cylinder which rotates around an axis is s...
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JP2018119521A |
To provide a scroll type compressor which can reduce wear caused by slide friction occurring when an outer peripheral surface of a discharge cylinder which rotates around axis is sealed.A scroll type compressor includes: scroll members h...
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JP6360536B2 |
To provide a scroll pump having an improved electric drive portion.A scroll pump, in particular, a scroll vacuum pump has at least one scroll pump stage (19) for transporting a gas from a gas inlet (15) to a gas outlet (17) through the s...
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JP6350576B2 |
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JP6336533B2 |
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JP2018513296A |
The compressor has a casing having an inner wall that defines the compression chamber, a suction port that leads to the compression chamber, a discharge port that leads out from the compression chamber, and the casing that can be rotated...
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JP6328705B2 |
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JP2018071359A |
To provide a scroll fluid machine that reduces the sliding areas of center side tip seals, in which large bearing occurs, to enable reduction of a sliding loss or power reduction while securing the compression performance.The present inv...
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JP2018066427A |
To provide machinery and a slide material used in the machinery which can improve wear durability and extend a maintenance cycle.Machinery includes a member 31 having a metallic surface, and a slide material 32 sliding on a surface of th...
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JP6313178B2 |
Provided is an oil-free screw compressor that can prevent lubricating oil from flowing in and maintain compression performance. The oil-free screw compressor is provided with: a casing 12 that has a rotor chamber 150; a bearing 22 that s...
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JP6305833B2 |
This scroll compressor is a scroll compressor provided with a housing and a scroll compression mechanism provided inside the housing, the interior of the housing being provided with an discharge cavity for discharge high-pressure gas com...
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JP2018048710A |
To provide a seal structure of a casing having improved sealability between casings using an O ring.A seal structure of a casing for sealing between joining portions 57 and 59 of a fixed scroll 24 and a front housing 4 mutually joined wi...
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