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Patent Searching and Data


Matches 801 - 850 out of 3,233

Document Document Title
JP2009216088A
To provide a displacement type fluid machine, with improved volume efficiency by improving seal performance of an actuation chamber.The device includes a cylindrical rotor 22 installed on the outer circumferential side of a bearing 23 to...  
JP2009215905A
To provide a shaft sealing device for a screw fluid machine having a seal capable of maintaining sealing performance even when the seal is worn.The shaft sealing device 1 for the screw fluid machine for compressing or expanding fluid by ...  
JP2009203970A
To enable oil to be certainly prevented from leaking over the long haul to improve reliability and endurance.A dividing wall 1C equipped with a bearing housing section 1D is provided between a casing 1 and a motor case 11. A bearing 15 f...  
JP4329528B2  
JP4319409B2  
JP2009174525A
To enhance the capacity of a screw compressor by reducing the amount of a fluid leaking from a compression chamber to a bypass passage.In a casing 10 of a screw compressor 1, a slide valve 70 is arranged on the side of a screw rotor 40. ...  
JP4307590B2  
JP2009162129A
To provide a screw compressor wherein the life of a lip seal is not shortened by dirt.The screw compressor 1 is arranged with the lip seals 13, 14 between a suction flow passage 5 sucking target gas into a rotor chamber 3 storing a screw...  
JP4301119B2  
JP4300726B2  
JP4301118B2  
JP4301985B2  
JP2009156088A
To prevent complication of structure and cost rise by eliminating necessity of a high pressure supply passage for chattering prevention and a spring operation valve, and to prevent increase of the number of parts and cost rise by inhibit...  
JP4283953B2  
JP4282809B2  
JP2009127440A
To provide a highly efficient and highly reliable low pressure chamber system scroll compressor.This scroll compressor 1 includes a fixed scroll 5, a turning scroll 6 forming a compression space together with the fixed scroll 5, a frame ...  
JP2009127553A
To reduce drive loss of a vacuum pump after reaching a desired degree of vacuum.A pump chamber 28 including a roughly cylindrical inner circumference surface and having a suction port and a discharge port opened thereto is defined in a h...  
JP4276024B2  
JP2009121379A
To provide an efficient and reliable scroll compressor stably sealing and sliding a back pressure partition band to a turning end plate, achieving equalization with respect to the whole of a sliding and contacting surface, and capable of...  
JP4262949B2  
JP4256801B2  
JP4251679B2  
JP2009052462A
To increase the reliability of a fixed scroll and a rotary scroll of a scroll compressor and also increase the efficiency of the scroll compressor by reducing leakage loss to match the compressor to recent refrigerating air conditioners ...  
JP2009047040A
To provide a scroll type fluid machine capable of enhancing design flexibility by facilitating constitution of a back pressure chamber in a back pressure side space of a turning scroll member which is difficult to minimize an installatio...  
JP4231443B2  
JP4223867B2  
JP2009007938A
To prevent incompressible lubricant oil to remain in a vane back-pressure chamber and its passage when a compressor is started after stopping the compressor.A lubricant oil-discharge passage 38, equipped with an opening and closing means...  
JP2009002254A
To prevent excessive consumption of inactive gas and positively prevent intrusion of reaction product gas to a bearing side by controlling the supply flow rate of inactive gas to a shaft seal part appropriate for respective states of pro...  
JP2008303749A
To provide a scroll compressor capable of being easily machined while improving sealing performance with a simple configuration.The scroll compressor, having a fixed scroll and a turning scroll each with a spiral wrap on an end plate and...  
JP2008303781A
To provide a screw compressor preventing leakage of toxic gas.In the screw compressor 1 in which either one shaft 9 of screw rotors 2, 3 is extended into a motor chamber 7 and is rotatingly driven by a motor rotor 5, a mechanical seal 17...  
JP2007002850A5  
JP2008303933A
To provide a shaft sealing device for sufficiently developing sealing performance even when a shaft tilts or slips over an allowable range.In the shaft sealing device, a fixed seal ring 33 mounted on a non-movable member 3 can be moved t...  
JP2008291681A
To provide a screw compressor capable of improving a sealing performance between a casing and a gate rotor while reducing rotation resistance of the gate rotor, and improving efficiency of the compressor.An oil supply groove 51 is provid...  
JP4186784B2  
JP4173869B2  
JP2008255798A
To prevent a lubricating oil at a bearing part from entering into a compression chamber even if there is a pressure variation in the compression chamber in an oil-free rotary compressor.In this method for sealing the rotor shaft of an oi...  
JP2008255797A
To provide a seal device for a rotary shaft capable of eliminating the risk of occurrence of entering of lubricating oil at a bearing part into a compression chamber even if there is a pressure variation in the compression chamber in an ...  
JP2008255796A
To provide a shaft seal device of an oil-free rotary compressor causing less leakage even if there is an up or down temperature change during operation and discharging a clean compressed gas by maintaining the optimum clearance between i...  
JP4168332B2  
JP2008248758A
To eliminate troublesomeness dimension management of a seal member and improve seal performance of a sliding surface between a fixed scroll and a revolving scroll in a scroll type fluid machine.This scroll type compressor comprises the f...  
JP2008240639A
To provide a gas compressor capable of properly advancing a vane even in starting, and having a fail-safe function for an excessive compression state of a suction compression chamber.In this gas compressor 10, a compressor body 12 stored...  
JP2008232005A
To provide a screw compressor from which toxic fume does not leak.This screw compressor 1 comprises a pair of screw rotors 2, 3 contained in a rotor chamber 4 rotatably around their respective horizontal shafts, engaged with each other, ...  
JP2008232129A
To eliminate gaps between rotors, and between a rotor and a rotor frame.A space 12 is provided at an inner part of a concave surface of a rotor. A hooking part is provided at an outer side thereof. A partly narrowed leg 5 is provided at ...  
JP4160161B2  
JP4157275B2  
JP4151120B2  
JP4153085B2  
JP4151996B2  
JP4142945B2  
JP4142418B2  

Matches 801 - 850 out of 3,233