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Patent Searching and Data


Matches 751 - 800 out of 3,284

Document Document Title
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...  
JP4690743B2  
JP2011099395A
To provide a steam compressor capable of preventing the atmosphere from flowing into a steam chamber even in case where the pressure of the steam sucked into the chamber is lower than the atmospheric while a drop of the compressed steam ...  
JP2011085132A
To provide an improved method of isolating a running gear of a scroll pump from a vacuum space.A scroll pumping apparatus includes: a first scroll element and a second scroll element; a drive mechanism operatively coupled to the second s...  
JP4670854B2  
JP2011510215A
A scroll compressor includes scroll compressor bodies with axial tip seals projecting from the respective scroll ribs of fixed and movable scroll compressor bodies. An extended thrust region is provided in surrounding relation to an inne...  
JP2011052540A
To provide a scroll type fluid machine including a seal member having high sealing performances regardless of differential pressure between compression chambers even if the seal member wears.A plurality of cuts 25 are formed on a surface...  
JP4643049B2  
JP2011038492A
To provide a scroll compressor including a movable scroll inserted into a rotating shaft with an oil seal on the inserting direction side of a movable scroll previously assembled to a boss portion.The rotating shaft 101 is rotatably supp...  
JP4637092B2  
JP4635893B2  
JP4638582B2  
JP4628556B2  
JP4618478B2  
JP4617615B2  
JP4617811B2  
JP4621179B2  
JP2010540832A
The present invention relates to the multi-stage vacuum pump of a clam shell form. A vacuum pump has two housing components (12) by which seal connection is carried out mutually, and the chamber which makes the sequence prolonged in a lo...  
JP2010537109A
The present invention was attached between at least one rotating shaft (11) and a lubricous bearing (5) with which it was equipped on at least one lubricous bearing (5), and a dry pumping stage (7), It is a dry vacuum pump provided with ...  
JP4578780B2  
JP4573614B2  

Matches 751 - 800 out of 3,284