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Patent Searching and Data


Matches 701 - 750 out of 3,256

Document Document Title
JP2012145015A
To provide a scroll fluid machine eliminating the need of providing a bearing inside its compression chamber thanks to the absence of a pin crank mechanism inside the compression chamber to allow its continuous operation time to be lengt...  
JP2012145017A
To provide a dual-shaft rotor pump that extends the life of a shaft seal by reducing pressure load on the shaft seal and prevents power loss to be caused by unnecessary fluid movement.In the dual-shaft rotor pump comprising a casing, two...  
JP2012136942A
To obtain a multicylinder rotary compressor that can prevent compressed gas from leaking from a split surface of a split-type intermediate plate without bonding the split surface of the split-type intermediate plate with an adhesive agen...  
JP2012137008A
To prevent extension of damage of a resin layer in a compressor for compressing a cooling medium.The compressor includes: a cylinder having a compression chamber and a blade accommodation part in communication with the compression chambe...  
JP4979473B2  
JP2012127314A
To provide a water injection type screw fluid machine provided with adequate sealing properties, and a shaft sealing device with a long life.In a screw fluid machine 1, a shaft sleeve 15 fit together onto an outer periphery of a rotor sh...  
JP2012122450A
To provide a lightweight and compact screw compressor capable of forcing a fluid to pass across a casing interior space to be fed to another interior space formed farther inside.In a screw compressor 1 which rotatably accommodates a pair...  
JP2012107530A
To secure sealing properties between a cylinder head and a muffler head while suppressing the deformation of the cylinder head.A two-step compressor (10) includes a lower step side compressing mechanism (42) having a lower step side cyli...  
JP2012102612A
To overcome a problem that, in order to provide an appropriate supply amount of a lubricating oil in compressing the oil down to a supercritical pressure using a carbon dioxide refrigerant, an oil outlet needs to be arranged at a positio...  
JP2012097654A
To reduce the number of parts for a compressor for cost reduction.A scroll compressor includes: an orbiting scroll driven by a motor; a stationary scroll integrated with the orbiting scroll, and formed with a spiral wrap stood upright on...  
JP4939493B2  
JP4927446B2  
JP2012082794A
To provide a scroll fluid machine which can improve performance of a fluid machine, by properly holding back pressure by improving sealability between a high pressure chamber and an intermediate pressure chamber for forming a part of a l...  
JP4908953B2  
JP4911790B2  
JP4892238B2  
JP4889469B2  
JP2012036841A
To prevent lubricating oil from being leaked through a gap between the bearing member of a bearing housing and a drive shaft to be discharged to an upper part of a rotor of a drive motor.A sealing member (50) formed in a ring shape is fi...  
JP4875411B2
To provide a scroll compressor reduced in weight, capable of solving gas leak due to pressure deformation of a housing or a scroll member without enhancing the rigidity thereof by optimizing the structure of the housing and the arrangeme...  
JP2012026324A
To provide a fluid machine capable of efficiently reducing pressure in a seal space between seal members in a bearing chamber while maintaining a small distance between a rotor and a bearing for supporting a rotor shaft of the rotor.A hi...  
JP2012021450A
To provide a roots type fluid machine capable of reducing the leak of a gas from an axial gap.In the roots type pump having slight axial gaps between the rotor axial end surfaces 36AB and 36BB of a pair of rotors 36 and the internal wall...  
JP2012013016A
To provide a screw type steam machine including a shaft seal structure capable of preventing leaked steam from intruding into a lubricating oil chamber regardless of the pressure of steam which is a handling fluid.The screw type steam co...  
JP2012012940A
To provide a gas compressor capable of preventing chattering of vanes even in an operating state under a low load or low speed condition.In a vane rotary type gas compressor, a magnet is arranged in proximity of an inner peripheral surfa...  
JP2012012976A
To provide a multicylinder rotary compressor that prevents a refrigerant from leaking from a joint part of a partitioning plate that partitions a plurality of compression chambers even in special operation mode.Notches are provided aroun...  
JP2012002226A
To provide a scroll compressor for improving a compression efficiency by optimizing a cylinder oil circulation rate in an operating state.In the stepped scroll compressor, the cylinder oil circulation rate of a lubricant that is suctione...  
JP2011256828A
To provide an oilless screw compressor capable of enhancing cleanness of discharged compressed air.The oilless screw compressor has a mail rotor 1 and a female rotor 2, a compressor casing 8 housing both rotors, a suction side bearing an...  
JP4843483B2  
JP2011247191A
To allow spaces before and after a vane to be communicated with each other through a cut concave part by causing the cut concave part to be projected from the vane when a cap is projected from the vane, and not to allow the spaces before...  
JP2011247199A
To improve input efficiency and durability of a positive-displacement fluid machine by reducing the sliding resistance between an inner circumferential surface and sliding contact parts and the sliding resistance between guides and slidi...  
JP2011247114A
To provide a scroll fluid machine that reduces restrictions on mounting of a fastening member for fastening turning scrolls to a pivot and prevents an increase in temperature of the pivot.The scroll fluid machine 1 includes: a casing 2; ...  
JP4833882B2  
JP2011236823A
To provide a screw compressor having a high gas leakage suppressing effect.The screw compressor includes a radial seal portion C in which a screw rotor 2 and a bearing holder 6 are opposed to each other in the radial direction, and a thr...  
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...  
JP2011196265A
To provide a scroll compressor equipped with a pressing mechanism for pressing a movable side flat plate part and a fixed side flat plate part to each other into pressure contact in a state that a fixed side wrap meshes with a movable si...  
JP2011190779A
To provide a scroll fluid machine achieving a reduction in weight of a balance weight.This scroll fluid machine includes: a fixed scroll; a turning scroll 800 engaged with the fixed scroll; a crankshaft 200 swirling and driving the turni...  
JP4782915B2  
JP2011185224A
To provide a highly airtight container and a vacuum pump at a low cost.When forming a cylindrical casing body by assembling a plurality of casing parts, a string-like elastic member 21 is arranged between the casing parts to press the ca...  
JP2011185192A
To provide a shaft seal structure and shaft seal method of a roots blower for a vacuum evaporator, and a vacuum evaporation device, preventing grease or lubricating oil of bearings from being contaminated with steam by using oil seals as...  
JP2011179392A
To provide a scroll type fluid machine with elongated service life, without an increase in cost.The scroll type fluid machine includes: a fixed scroll of which the spiral lap part 3 is disposed to a tooth bottom face of an end plate 2; a...  
JP4757431B2  
JP4758038B2  
JP4747437B2  
JP2011149381A
To simplify a compressor and a structure of its drive system device.The oil-free screw compressor is composed of compressor bodies 1, 2 compressing gas, a motor 10 driving rotors of the compressor bodies via accelerating gears 2a, 2b, 9,...  
JP4729773B2  
JP2011132907A
To improve the durability of a compressor, in which a separation chamber for separating a lubricating oil from a compressed high-pressure gas refrigerant is provided on the discharge side of a compression mechanism and the oil circulatio...  
JP2011127462A
To suppress an increase in sliding toque and to suppress performance degradation.The distal ends of the teeth 112, 122 of a pair of scrolls 11, 12 are formed with tip seal grooves 112a, 122a for mounting tip seals 16, 17, and the pair of...  
JP4713059B2  
JP4709439B2  
JP4706892B2  
JP2011117406A
To provide a compression machine in which a separation chamber to separate lubricant from compressed high pressured gas at the discharge side of a compression mechanism, and that lowers oil circulation and improves durability by securing...  

Matches 701 - 750 out of 3,256