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Patent Searching and Data


Matches 951 - 1,000 out of 3,280

Document Document Title
JP4014109B2  
JP4007189B2  
JP3999852B2  
JP2007239630A
To provide a scroll compressor not causing the deterioration of reliability and performance of a compressor over long time operation even if a back pressure partition band is deformed by pressure. A cross section is formed in a shape hav...  
JP2007231837A
To provide technology improving the water-resisting property of a rotary air compressor for supplying air to a fuel cell stack. The rotary air compressor AC is used in a fuel cell system and is provided with a pump chamber 20 and a gear ...  
JP2007231796A
To provide a tip seal for a scroll fluid machine capable of being used without being influenced by radiation under a low radiation environment, excellent in strength and physical characteristics, and of remarkably low cost as compared wi...  
JP3965982B2
To provide a scroll type pump capable of evenly applying back pressure to a movable scroll by a back pressure applying means through a sliding member. Spiral blade parts 20 are formed on a fixed scroll 1 and the movable scroll 2, respect...  
JP2007211672A
To provide a rotary compressor which suppresses overheat loss of refrigerant gas, and prevents the leakage of the refrigerant gas from a high pressure side to a low pressure side of a cylinder chamber by easily running oil to the high pr...  
JP2007211702A
To provide a horizontal scroll compressor which reduces a possibility that an intended back pressure is not set in a back pressure area, even when atmospheres in the back pressure area and a suction pressure area are not uniform. In a ho...  
JP3959437B2
To modulate continuous capacity from 100% full capacity to 0% of a scroll type machine by a single control mechanism. Axial or radial relative movement between both scroll members 26, 32 is obtained to release sealing of a fluid pocket b...  
JP2007198188A
To surely prevent lubricating oil from intruding into a revolution scroll side across a bulkhead in a housing. An insertion through hole 36 of the bulkhead 20 of larger diameter than a revolution shaft 17 through which the revolution sha...  
JP2007187153A
To provide a highly reliable fluid machine capable of feeding a sufficient quantity of lubricating oil to a sliding part, even when connecting a driving shaft and a motive power recovery shaft by a connecting part.An expander integrated ...  
JP2007518022A
Abradable coating is formed in a part of side wall of the lap of a scroll compressor. Coating is given and the radial outside portion of a side wall part can support the power between scroll laps. Thus, load is told from the portion whic...  
JP2007518023A
As for a scroll compressor, it has the substantially spiral lap which was abradable into the inner circumference side portion of the tip part, or equipped it with conformable coating. Coating is not applied to the perimeter side portion....  
JP3941484B2
To provide a multi-stage type vacuum pump capable of preventing a contact between a rotor and a housing caused by a difference of thermal expansion of the housing and a rotation shaft while inhibiting a reduction of volume efficiency of ...  
JP3941452B2
To prevent the intrusion of oil to a pump chamber in the transfer of a vacuum pump from an operation state to an operation stop state. Annular shaft seal elements 49 and 50 are fitted and fixed to rotating shafts 19 and 20 in a rear hous...  
JP3935872B2
To provide a rotary scroll compressor in which any unstable behavior of a scroll member caused by the cantilever support of the scroll member at a position away from laps under a load of compressed fluid is eliminated, a gap of the laps ...  
JP3932519B2
To improve an assembly property by providing a recessed part to be communication with a compression chamber to a center part of a stationary member to be fixed to a frame, mounting a muffler so as to surround the recessed part, providing...  
JP3934850B2
To provide a face seal structure which is suitable in particular for a small diameter shaft rotated at a high speed. A seal face structure comprises a pair of cooperating seal rings 3, 5, one 5 of which is provided to a rotary shaft 2 an...  
JP3933492B2
To provide a scroll compressor reliable and superior in durability of members provided in back of a moving scroll. This scroll compressor is provided with a flat plate ring body 5a keeping sliding contact with the moving scroll 2a at one...  
JP2007146790A
To provide a compressor provided with a rotary shaft, a compression mechanism driven by the rotary shaft, a housing storing the rotary shaft and the compression mechanism, and a shaft seal device sealing a housing penetration part of the...  
JP2007146659A
To enhance energy efficiency of an air compressor by reducing internal leakage at an outer peripheral clearance by sufficiently applying sealing effect by oil even to an outer periphery of a male rotor in an oil-cooling type screw air co...  
JP3931168B2
To simplify a structure and improve reliability of an oil-free screw compressor, by eliminating a speed increasing device, and utilizing parts on a compressor body side and parts on an electric motor side in common. A compressor body 1 a...  
JP2007138836A
To provide a vane capable of improving sealing performance of a compression chamber formed in a pump chamber when a vane pump is operated.The vane for the vane pump for solving the problem is a plate shape vane 30 formed on a rotor 20 of...  
JP3925480B2
To hardly cause a failure in a pump, and to prevent an air bubble from remaining in the pump in initial introduction of ink. The pump 30 is connected between an inkjet head 2 and an ink cartridge 20. A suction hole 31a and a discharge ho...  
JP3924135B2
To provide an oil injection type screw compressor capable of preventing oil from leaking into a motor casing storing a motor for driving a male rotor via a rotor shaft. A first seal ring 11 having an oil seal 11a where a lip slides with ...  
JP3924817B2
To reduce inside leakage of an operating fluid and provide a rotary fluid machine of high perfoprmance by sealing an axial direction clearance of a displacer sliding part effectively, and improve efficiency by arraigning an oil holding m...  
JP2007132226A
To solve a problem that just installing the conventional O-ring does not secure sealability of a discharge muffling chamber and degrades volumetric efficiency caused by significant pressure difference between the intermediate-pressure di...  
JP2007132243A
To provide a screw compressor having an inexpensive and space-saving shaft seal construction on a discharge side of a rotor shaft.The screw compressor 1 compresses target gas by screw rotors 4 contained in a rotor chamber 3 and meshed wi...  
JP3921359B2
To provide an oil-cooled type screw compressor capable of preventing the leakage of oil to the outside of the compressor body, and suppressing losses of discharging air amount. An oil returning line 9 with an air-operated valve 91 interp...  
JPWO2005042979A1
回転式ドライ真空ポンプにおいて駆動部にキ ャンドモータを用いた場合、反応生成ガスが キャンドモータ内部に混入し、モータが故障 し、従って、回転式ドライ真空ポンプが...  
JP3913036B2
To enhance strength of both laps by securing large a fillet part arranged in a root part of a mating lap by securing large a recess part arranged in a tip part of the fixed side lap and the turning side lap. This scroll compressor mutual...  
JP3907236B2
To reduce the necessity of cleaning a shaft seal device compared to a well-known device and to allow the shaft seal device to be easily detached/ attached when manually cleaning the shaft seal device by arranging the shaft seal device be...  
JP2007092546A
To provide a highly efficient and silent fluid machine which is reduced in wearing in a sealing member and in an opposite surface, has long-term reliability and high airtightness, and is reduced in the sliding loss of friction.The fluid ...  
JP2007077936A
To provide a compressor equipped with a rotary shaft, a compression mechanism driven by the rotary shaft, a crank chamber for housing the rotary shaft and the compression mechanism and a shaft sealing member for sealing a crank chamber s...  
JP2007077958A
To provide a compressor preventing sticking of an O-ring of a shaft seal unit to a rotary shaft and ensuring sealing performance.The shaft seal unit 40 for airtightly sealing the rotary shaft 30 to a drive side casing 22 has a fixed side...  
JP2007077937A
To provide a compressor capable of maintaining sealing performance of a second sealing member (having an annular flat shape and made of a synthetic resin) of a shaft sealing device over a long time.This compressor is equipped with a rota...  
JP2007040294A
To provide a two-stage screw compressor having improved reliability without giving damage to the outside even when using toxic operating gas by preventing the entry of air and the leakage of the operating gas to the outside.The two-stage...  
JP2007040214A
To provide a rotary gas compressor for more surely preventing the oozing-out of lubricating oil along a rotating shaft in the outward direction of a housing.The rotary gas compressor 10 comprises a compression mechanism 12 which has a ro...  
JP3881861B2
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 r...  
JP2007023915A
To solve a problem that high pressure refrigerant gas leaks into a compression mechanism part through a gap of an abutment part of the compression mechanism part assembled by fastening of bolts and efficiency of the compressor drops when...  
JP3874469B2
To provide a scroll compressor, in which fluctuation of attraction force in an operation area is little, by discharging fluid inside a compressing chamber when a pressure inside the compressing chamber constructed of a rotary scroll and ...  
JP3874430B2
PURPOSE: To facilitate the timing setting work and prevent the corrosion of motor windings. CONSTITUTION: Rotors 5A, 5B are overhung and fixed at one shaft end of both rotary shafts 6A, 6B, timing gears 7A, 7B are overhung and fixed at t...  
JP3872800B2
To provide a means to exert the desired sealing performance stably. The installing structure of a shaft sealing mechanism according to the invention is equipped with a groove 71 having a width greater than the minimum width dimension w3 ...  
JP3869578B2
To provide a axial seal and a gas compressor which realize the long life of the sealing function, by preventing the generation of a plating phenomenon by a metal ion, and the holding a foreign matter. Following to the rotation of a rotar...  
JP2007002850A
To provide a rotary compressor capable of ensuring the high compression efficiency without increasing mechanical losses even when an operating condition of the rotary compressor changes.In a compression mechanism (30) of the rotary compr...  
JPWO2005038254A1
To an opposed face with the panel of revolution scrolling in the surroundings outside [ lap ] fixed scrolling, The abbreviated annular seal portion which Sliding contacts to the panel of revolution scrolling spreading so that it may have...  
JP3849657B2
To reduce the manufacturing cost of a pump with simple structure while seldom causing the failure of the pump. The pump 30 is connected between an injection head 2 and an ink tank 20. A case 31 of the pump 30 is provided with an intake h...  
JP3849949B2
PURPOSE: To promote high speed and large capacity easily while reducing an outer diameter by making a circumscribed rotator into rotation and revolution by means of an eccentric turning shaft in a state that an inscribed trochoidal body ...  
JP3849661B2
To provide a pump of a relatively simple structure, of little manufacturing cost, easy to miniaturize, hard to develop troubles, and of good pump performance, and an ink-jet printer having the same mounted thereon. The pump 30 mounted on...  

Matches 951 - 1,000 out of 3,280