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Patent Searching and Data


Matches 1,251 - 1,300 out of 3,237

Document Document Title
JP2002317765A
To prevent deterioration resulting from the leakage of discharge gas and the generation of abnormal noises.This compressor comprises a suction chamber 23 for sucking a medium into a casing 1, a discharge chamber 12 for discharging and re...  
JP3338568B2
PURPOSE: To utilize pressure entering in a recessed groove and make a sealing member float from the recessed groove in the whole length so as to surely improve sealing and compression performances. CONSTITUTION: Side lip parts 8, 8,... a...  
JP3338886B2
PURPOSE: To reduce the maximum value and the fluctuation width of upsetting moment exerted on a revolving scroll. CONSTITUTION: An inner region on which floating force F1 is exerted and an outer region on which pressing force FO is exert...  
JP3338560B2
PURPOSE: To prevent the wear and damage of the respective tip parts of a seal member by providing a seal member with a plurality of lip parts which are brought into contact with one side surface of the recessed groove of a lap part and w...  
JP2002310080A
To provide a rotary compressor mitigating lubricating conditions of a linear contact part between the outer circumferential face of a rolling piston and a tip part of a vane, preventing abnormal abrasion and seizure in the linear contact...  
JP2002310075A
To provide a scroll type compressor favorably floating tip seals without causing increase in the cost, reducing the leakage of refrigerant to a low- pressure side compression chamber, and improving the compression efficiency.This scroll ...  
JP2002310301A
To provide a sealing member reducible in cost and a cooling medium compressor with the sealing member.A gasket 40 comprises a first sealing portion 42 assembled on a joint face B between a front side end face 10a of a cam ring 10 and a r...  
JP2002535539A
(57) It is an object for compression of the process fluid in a summary operation room (28), By the 1st (44) held at the low 及び high-pressure power respectively equal to 90% of low 及び high-pressure power at least in this room (28)...  
JP3337610B2  
JP3336721B2  
JP2002303281A
To improve performance of a scroll compressor by improving airtightness between scrolls and increasing the compression ratio.The scroll compressor is provided with a stationary scroll having a volute wall erected on an end plate and a re...  
JP2002295385A
To provide a cooling water returning device capable of returning cooling water leaking from a seal part in a casing to a vacuum pump by utilizing the suction of the vacuum pump, eliminating shortage of cooling water, and maintaining cons...  
JP2002285981A
To provide a technology which is effective for feeding lubrication oil to a desired lubricating part of a scroll type compressor, provided with an electric motor as a driving power source driving a coolant compressing mechanism and disch...  
JP2002285982A
To provide a technology effective for feeding lubrication oil to a desired lubricating part of a scroll-type compressor provided, with an electric motor as a driving power source for driving a coolant compressing mechanism, and dischargi...  
JP2002276574A
To provide a shaft seal device for an oil-free screw compressor with excellent oil seal performance to be manufactured and attached easily.In the shaft seal device 30, a comb-like ring 11 with a large number of nails 112 projecting like ...  
JP3328451B2
PURPOSE: To provide a scroll compressor effective for improving a function and reliability by eliminating the deformation of a joint section with a stationary scroll seriously affecting the function and reliability due to frame deformati...  
JP3327702B2  
JP2002266778A
To prevent a tip seal from abrading a mating-material and reduce the abrasion of the tip seal itself by providing the abrasion surface of the tip seal with superior lubrication.This spiral tip seal is used for a scroll type compressor fo...  
JP2002257044A
To improve a sealing function of a labyrinth seal for preventing oil leakage from a vacuum pump to a pump chamber.Annular shaft seal ring bodies 49 and 50 are engaged with and fixed to rotating shafts 19 and 20 in engaging holes 47 and 4...  
JP2002257056A
To provide an accurate and inexpensive scroll compressor by regulating a movable range of a turning scroll indirectly via a thrust ring.A flange part 52 is disposed on one side of the cylindrical thrust ring 5, and the movable range of t...  
JP2002257244A
To improve the sealing function of a labyrinth seal for preventing oil leakage to a pump chamber, in a vacuum pump.Annular shaft seal ring bodies 49 and 50 are fitted and fixed into/to rotary shafts 19 and 20 within fitting holes 47 and ...  
JP2002257070A
To improve a preventing effect of oil intrusion into a pump chamber in a vacuum pump.Annular shaft sealing ring bodies 49 and 50 are engaged with and fixed to rotating shafts 19 and 20 in engaging holes 47 and 48 formed in a rear housing...  
JP2002527670A
(57) In a summary scroll type vacuum pump (10), an expander (40, 50) and a compressor (60, 70) are arranged in the housing (20) same as two stages in series, and it drives with the same axis (22). The 1st stage is a scroll type expander....  
JP2002235682A
To restrict invasion of a fuel cell exhaust gas containing moisture inside a bearing part.This compressor 1 has a fixing scroll 31 for compression, a turning scroll 61 for compression for partitioning a compressing chamber 32 in a space ...  
JP2002227794A
To provide a fluid machine capable of simplifying and/or making small the seal structure and thrust force adjusting structure and equipped with an excellent adjusting ability for a small thrust force.The fluid machine is composed of a le...  
JP2002227781A
To provide a scroll type compressor capable of adjusting the pressure in a back pressure chamber without using any spring.The base plate 24 of each movable scroll is furnished with a communication hole 60 to generate communication of a m...  
JP3314562B2
PURPOSE: To provide a scroll compressor ensuring reliability even in the heavy operation such as high efficiency and high speed and high load operation or the like, simplifying the structure, and reducing the cost. CONSTITUTION: An eccen...  
JP2002221178A
To secure favourable sealing performance in a vacuum pump using fluorine contained oil.Rubber made lip rings 50, 51 are arranged on peripheral surfaces 192, 202 of rotating shaft 19, 20 between radial bearings 37, 38 and rotors 27, 32. L...  
JP2002221157A
To secure good sealing performance and to extend the service life of a lip seal at a low cost in a vacuum pump.A relieving hole 53 is formed in the upper wall 332 of a gear housing 33. The relieving hole 53 comprises a small diameter par...  
JP2002221177A
To provide a shaft sealing structure capable of performing an increase of the longevity of a lip seal while securing favourable sealing performance, in a vacuum pump.Rubber made lip rings 51, 52 are arranged on peripheral surfaces of rot...  
JP2002221170A
To provide a strong scroll compressor provided with a scroll having high fatigue resisting strength and capable of keeping sufficient sealability, and capable of being miniaturized and reduced in weight.This scroll compressor carries out...  
JP2002523684A
(57) Summary book invention has the 1st rotor spindle (1) and the 2nd rotor spindle (2) which are arranged in parallel mutually and form a rotor spindle pair, The above-mentioned spindle pair is arranged in the closed compression chamber...  
JP2002202074A
To provide a scroll type compressor capable of improving air tightness performance without requiring a fixing plate of selection fitting even if a sealing structure of an outer shell is simplified and of reducing cost of parts as well as...  
JP2002180981A
To feed a sufficient quantity of lubricating oil to a sealing material for gas leakage prevention provided in a region between the high-pressure side and the low-pressure side in a scroll type compressor formed with a high- pressure regi...  
JP2002180978A
To provide an effective art in securing sealing performance of a drive shaft driving a movable scroll and suppressing a power loss in a scroll type compressor.This scroll type compressor 1 is provided with a plain bearing 62 between the ...  
JP2002180980A
To provide a scroll type compressor suppressing abrasion of a tip seal by slide contact with an opening edge part of a bypass hole while avoiding problems in the conventional art in the scroll type compressor engaging a fixed scroll havi...  
JP3295090B2  
JP2002168182A
To provide a scroll compressor having an operating pressure as a high discharge pressure, preventing an increase in weight due to the secured strength of a fixed scroll and a rear casing and a decrease in the reliability and performance ...  
JP2002161877A
To improve durability and reliability against temperature changes or the like by stably fitting a core metal of a seal member to an end plate of a turning scroll with a coming-off preventing protrusion.Respective compressed chambers 15 a...  
JP3287573B2  
JP3286432B2
PURPOSE: To prevent reduction of durability of a bearing part so as to eliminate discharge of oil by supplying oil from an oil reservoir to the circumference of a driven shaft always in its liquid state and preventing the oil from flowin...  
JP3286455B2
PURPOSE: To enable high compression ratio operation without increasing number of windings of a spiral scroll and eliminate valve noises of a discharge valve in a compression mechanism of a scroll compressor wherein a fixed scroll and a m...  
JP2002147361A
To assemble a compressor with excellent workability, and to reduce a cost.A positioning projection strip 51 is formed in the peripheral direction in an inserting hole A formed in a front housing 4, and inserting a shaft 6. A lip seal 34 ...  
JP2002147371A
To inexpensively provide a vane pump for exhibiting sufficient performance even in a small type.This vane pump has a rotor 10 rotatably supported and eccentrically arranged in an inner peripheral space 50 of a casing 20, and a vane 11 in...  
JP3281752B2
PURPOSE: To lower the abrasion by varying the carbon fiber mixing rate with each tip seal by forming a tip seal provided at the end face of a spiral tap of each scroll member out of composite material where carbon fibers are mixed in pol...  
JP2002130168A
To prevent the occurrence of an excessive compression loss in refrigerant gas in applying pressure so as to close a reed valve of the other delivery part when a pressure wave generated when discharging the refrigerant gas from a delivery...  
JP2002130156A
To provide a seal structure of a multistage compression type scroll fluid machine for preventing leakage of a high pressure compressed fluid from a rear stage compressing part to a front stage compressing part.Spiral lap grooves 27 and 2...  
JP2002122084A
To provide a screw compressor free of the problem of making contact of screw rotors with one another, when a rotational speed exceeds a critical speed, and capable of being applied to an oil-free screw compressor.In this screw compressor...  
JP2002122086A
To prolong service life of a lip seal, mounted in parallel with a bearing without shortening the service life of the bearing in a fluid machine.The lip seals 45, 46 are mounted on projecting end parts 192, 202 of rotary shafts 19, 20, pr...  
JP2002122087A
To provide a shaft-sealing structure, capable of achieving long service life of a lip seal, while ensuring superior sealing performance in a vacuum pump.Lip seals 45, 46, 45A,46A are mounted on the peripheral faces of rotary shafts 19, 2...  

Matches 1,251 - 1,300 out of 3,237