| Document |
Document Title |
|
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...
|
|
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...
|
|
JP2002115683A |
To prolong service life of a contact type seal means for a shaft seal coming into slide-contact with a rotary shaft in a vacuum pump.Rubber lip seals 44, 45 are arranged in protruding end parts 192, 202 of rotary shafts 19, 20. The lip s...
|
|
JP2002115677A |
To solve the problems that a difference in pressure between a rotor chamber and a gear chamber cannot be ensured and oil in the gear chamber may leak into the rotor chamber, although an oil seal is arranged between the gear chamber and t...
|
|
JP2002115690A |
To efficiently cool oil cooling a material to be cooled in a vacuum pump.Gears 34, 35 are fixed while they mesh each other in protruding end parts of rotary shafts 19, 20 protruding into a gear housing 33. The rotary shafts 19, 20 are ro...
|
|
JP3274778B2 |
PURPOSE: To provide a scroll compressor capable of improving durability of a shaft seal member. CONSTITUTION: A scroll compressor comprises a compressor body 1 and an outermost shell 2 to contain the compressor body. The drive shaft 17 o...
|
|
JP2002106483A |
To improve sealing performance when sealing a refrigerant gas in a high pressure chamber so as not to leak into a low pressure side in a scroll type compressor in which the high pressure chamber discharging the refrigerant gas to the bac...
|
|
JP2002106482A |
To provide an economical gas compression technique capable of restraining, to the utmost, the fluctuation of thrust power applied to a movable scroll according to the pressure variation of a gas in a scroll type compressor.The movable sc...
|
|
JP2002098073A |
To improve compression performance by improving durability while preventing a lowering of sealing performance between both fixed and turning scrolls.This scroll compressor is provided with a housing 1; a fixed scroll 2 having a spiral wa...
|
|
JP3271365B2 |
PURPOSE: To make uniform the flow of the resin at the time of injection molding and yield a high accuracy product by using a thermoplastic material as a chip seal material which is accommodated in a groove formed at the foremost part of ...
|
|
JP2002089475A |
To lighten the burden on a high-pressure side of seal and to facilitate management for gaps between a rotor chamber and rotor end faces.This fluid machine comprises casings 7, 9 having the rotor chamber 11, a suction port 13 and a discha...
|
|
JP2002089473A |
To prevent leakage of a lubricant of a bearing in a compressor or invasion of foreign matter into the bearing caused by abrasion of oil seals of the bearing in early stages by application of high pressure.In this seal device, the oil sea...
|
|
JP2002089462A |
To rationally seal a high-pressure space and a low-pressure space formed behind a movable scroll base plate, and to buffer collision between a movable spiral wall and a fixed spiral wall or collision between a bush and an eccentric shaft...
|
|
JP2002089467A |
To provide a scroll type fluid machine having a tip seal not allowing disturbance of operation to function as a seal even if a burr is generated inside a groove formed in a tip part of a spiral lap of a scroll.In this machine, peripheral...
|
|
JP3266639B2 |
PURPOSE: To eliminate large axial load and reduce unnecessary abrasion and efficiency loss by providing a seal engaging with a pressure plate secured on another scroll member and surrounding a pressure chamber to bias the pressure plate ...
|
|
JP2002054582A |
To provide a scroll compressor whose type of working can be changed over between the internal high pressure type and internal low pressure type, whereby the sealing performance of its back pressure chamber is enhanced in the internal low...
|
|
JP2002054583A |
To provide a scroll type fluid machine capable of enhancing the compressing efficiency by optimizing the back pressure.A seal member 30 to seal a high pressure chamber (back pressure chamber) HR is stored in either an upper bearing (stat...
|
|
JP2002048077A |
To previously prevent the lowering of the performance of a scroll compressor by hindering the flow-in of the fluid to be carried into a low-pressure side after raising the pressure thereof.This scroll fluid machinery is provided with a h...
|
|
JP2002031068A |
To provide a scroll compressor free of the risk that a high pressure gas leaks to the low pressure side and capable of suppressing drop of the volume efficiency of compressor and the energy consuming efficiency by introducing such a stru...
|
|
JP3251709B2 |
PURPOSE: To fix bearings stably in the radial direction and the thrust direction even if a difference in thermal expansion is caused between the delivery side bearings and a casing. CONSTITUTION: The groove parts 25 and 26 extending in t...
|
|
JP2002021753A |
To apply proper back pressure to a turning scroll even at either operation time in a scroll compressor capable of switching inside high pressure operation and inside low pressure operation.A back pressure chamber of the turning scroll 13...
|
|
JP2002021755A |
To provide a scroll compressor preventing high pressure gas from leaking out to the low pressure side and capable of restraining reduction in volumetric efficiency and reduction in energy consumption efficiency of the compressor by seali...
|
|
JP2002021756A |
To provide a vacuum pump, particularly, a screw pump.In the screw pump, a first shaft is provided, the first shaft is arranged at an interval from a second shaft installed in a pump body, and is parallel to this first shaft, a first roto...
|
|
JP2002005046A |
To provide a scroll compressor capable of preventing fluid leakage.A back pressure chamber HR is formed at the other end of an end plate 12(a) of a fixed scroll 12, the fixed scroll 12 is pressed to a revolving scroll 13 by introducing c...
|
|
JP2002005056A |
To provide a newly inventive chip seal forming a virtually hermetic seal between base members of scroll member opposite to at least either preferably both of inner spiral flanges for a rotary scroll compressor.A chip seal assembly 126 is...
|
|
JP2002005055A |
To reduce a powdered abrasion wear of a chip seal 10 without pressing the chip seal onto a bottom plate.A groove 11 in which the chip seal 10 is inserted is established greater than the chip seal 10 in width and the chip seal 10 is press...
|
|
JP3244313B2 |
PURPOSE: To enhance the sealability by dispersing the gaps defined between a plurality of leaf springs which form a tip seal fitted in a groove so as to decrease the widths of the gaps. CONSTITUTION: A one groove 22, 23 having opposite e...
|
|
JP2001355736A |
To provide a sealing device using a seal ring whose sealing performance is improved enough to practically prevent the permeability and leakage of pressurized CO2.In the connection sections 13 and 16 of the two housings 12 and 15 surround...
|
|
JP2001349292A |
To provide a gas compressor that can reduce noise, for example, from an evaporator connected by piping to a suction opening, can improve the durability of a lip seal and can improve the accuracy of a change in capacity all via a simple s...
|
|
JP2001329979A |
To require no oil passage for carrying out a lubrication of a sealing means for partitioning a high discharge pressure area at the inside of a compressor and a low pressure area at the inside of the compressor at a surface of a rotation ...
|
|
JP2001329984A |
To provide shaft sealing structure achieving the long service life of a lip seal while good sealing performance is kept in a vacuum pump.Lip seals 44, 44A are arranged on the peripheral surfaces of rotation shafts 19, 20 locating between...
|
|
JP2001329967A |
To prevent a pressure leak from a back pressure chamber provided at a back surface side of movable scroll to a low pressure area.A bush 19 is engaged with an eccentric shaft 17 integrally formed on a rotation shaft 14. A balance weight 1...
|
|
JP2001330155A |
To provide shaft sealing structure to reliably prevent penetration of oil into the pump chamber of a vacuum pump and be excellent in durability.Lip seals 45 and 46 made of rubber are arranged at protrusion end parts 192 and 202 of rotary...
|
|
JP3232544B2 |
PURPOSE: To provide the dam structure of a vehicle air conditioning compressor whose manufacture and assembly are simple and which prevents completely leak oil from a seal member from flowing out to an electromagnetic clutch portion. CON...
|
|
JP2001323817A |
To improve performance of the supercharger and the service life of an oil seal by smoothly rotating a rotation shaft even with a narrow clear ance in relation to a rotation shaft hole of a casing.In this engine-driven supercharger, a dri...
|
|
JP2001317478A |
To relieve pressure applied to a seal, and to improve the durability.This fluid machine is provided with rotors 3 and 5, a rotor chamber 11 for housing the rotors 3 and 5, casings 7 and 9 having a fluid suction port 13 and a delivery por...
|
|
JP2001317638A |
To provide a seal structure and a compressor in which the constitution for preventing leak of gas dissolved in high pressure gas and lubricating oil as much as possible to the outside is positively adopted.This seal structure has a rotat...
|
|
JP2001520725A |
A tip seal for use in a scroll-type vacuum pump includes a seal element and an energizer element affixed to the seal element. The scroll-type vacuum pump includes first and second scroll blades that are nested together to define one or m...
|
|
JP3219497B2 |
PURPOSE: To suppress the occurrence of leakage of gas through a closed space when the height of the spiral lap of the stationary scroll and that of the spiral lap of the revolving scroll are different from each other. CONSTITUTION: Hardn...
|
|
JP2001280269A |
To provide a scroll type compressor preventing lowering of compression efficiency without leakage of high pressure gas to a suction chamber side in any case. It is possible to fill a clearance between a back pressure change- over body 20...
|
|
JP3207307B2 |
PURPOSE: To perform cooling and lubrication of a shaft sealing device without increasing the scale and the manufacturing cost of a compressor and with low suction resistance. CONSTITUTION: The communication port 62d of a suction passage ...
|
|
JP3207308B2 |
PURPOSE: To perform cooling and lubrication of a shaft sealing device without increasing the scale and the manufacturing cost of a compressor. CONSTITUTION: A scroll type compressor is provided with a main suction passage 62b communicate...
|
|
JP3205457B2 |
PURPOSE: To improve processability of a sealing member simultaneously with improvement of sealing ability and durability of the sealing member. CONSTITUTION: A plurality of sealing pieces 21C, 21C,... are erected on a sealing member 21 a...
|
|
JP2001235035A |
To solve the problem with a conventional vacuum pump that in the event of oil leaks, the overhaul thereof takes time, and is expensive.In a shaft sealing device, an opening 3b in a housing 3 and an annular sealing member 8 are disposed c...
|
