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Patent Searching and Data


Matches 601 - 650 out of 7,654

Document Document Title
WO/2004/094829A1
Rotary compressor including a compression chamber (200) having one suction port (51) and two discharge ports, a rolling member eccentric (80) from a center of the compression chamber (200), mounted to roll on, and revolve along a wall su...  
WO/2004/092588A1
An oil and vacuum pumps group (1) for a motor vehicle engine comprises a motion transmission shaft (30) extending along a main axis X-X, an oil pump (10) and a vacuum pump (20) fitted on the motion transmission shaft and a gear (40) also...  
WO/2004/092586A1
A high-pressure chamber (23) in a casing (20) is communicated at the bottom with a liquid storage container (31). A communication tube (34) is connected at its one end to the upper end of the liquid storage container (31) and at the othe...  
WO/2004/092587A1
An enclosed compressor has a first discharge chamber (31) and a second discharge chamber (42). The first discharge chamber (31) is formed above a compression mechanism (2) by a muffler (77). The second discharge chamber (42) is formed by...  
WO2004076864A3
A scroll compressor includes various features that promote a bifurcated flow pattern of gas through a compressor shell to reduce oil entrainment. After entering the shell, some gas travels upward, which reduces the volume of gas travelin...  
WO/2004/090332A1
A method of starting a dry vacuum pump including an upstream pump 1 having an inlet side 11A in fluid communication with a vacuum chamber 3, and a downstream pump 2 having an inlet side 12A connected to an outlet side 11B of said upstrea...  
WO/2004/088141A2
The invention relates to a pump (1), such as a vacuum pump or a compressor, comprising a pump housing (18) and at least one pump piston (2, 3) that moves along a circular path. In order to embody a novel pump of said type, the pump pisto...  
WO/2004/083642A1
The inside of a case of a rotary sealed compressor is maintained at a high pressure. The compressor has a fist cylinder (8A) and a second cylinder (8B) respectively provided with cylinder chambers (14a, 14b) where rollers (13a, 13b) are ...  
WO/2004/083643A1
The present invention relates to a positive-displacement vacuum pump for evacuating a gas by rotating two rotors synchronously in opposite directions in a non-contact manner. A positive-displacement vacuum pump according to the present i...  
WO/2004/081384A1
A hermetic compressor, wherein rotor passages (36) to communicate a rotor upper chamber (33) with a rotor lower chamber (35) are formed in a rotor (3b) and stator communication passages (72) to communicate the upper part of a stator (3a)...  
WO/2004/079192A1
A vacuum device has a vacuum container with a gas inlet and a gas outlet, and a vacuum pump with plural stages of mechanically structured vacuum pumps for reducing the pressure inside the vacuum container and maintaining the pressure-red...  
WO/2004/079883A1
A magnetizing and assembling method capable of realizing a low cost and highly reliable electric compressor with a rotor having a built-in magnet. Magnets (130) are inserted into jig slots (104) arranged in a magnetizing jig (100) formed...  
WO/2004/076864A2
A scroll compressor includes various features that promote a bifurcated flow pattern of gas through a compressor shell to reduce oil entrainment. After entering the shell, some gas travels upward, which reduces the volume of gas travelin...  
WO2004029523A3
The subject system can provide heat stress relief to individuals operating under, for example, hazardous conditions, or in elevated temperatures, while wearing protective clothing. The subject invention also relates to a condenser for tr...  
WO2004033916A8
The present invention relates to a rotary compressor and is concerned with that type of compressor which is of oil sealed type, that is to say the type in which oil is injected into the compression space and is subsequently removed from ...  
WO/2004/057189A1
A chamber (10) for a compressor is disclosed in which at least one portion has a multi-layer structure (11) and plates having the multi-layer structure are tightly attached to thereby reduce noise and vibration by virtue of mutual fricti...  
WO/2004/055331A1
A volume expander (60) used for a vapor-compression refrigeration cycle etc. has a connection passage (72) that branches off from an inflow port (37) connected to an expansion chamber (62) and penetrates to a suction/expansion process po...  
WO/2004/053335A1
A rotary compressor that is downsized and is controlled for leakage of operating fluid. These are achieved by providing the compressor with a coil spring that presses a vane to a roller and securing sufficient contact area between the va...  
WO/2004/054025A2
The invention relates to a device for supplying air to fuel cells, comprising a compressor, which is connected up from the fuel cell, and an expander, which is connected down from the fuel cell. The compressor is provided in the form of ...  
WO/2004/053311A1
A fuel booster operable to compress a combustible fuel, the fuel booster comprising a compressor housing, a compressor rotor, and a seal assembly coupled to the compressor housing. The seal assembly and the compressor housing cooperate t...  
WO/2004/054012A2
The invention relates to a device for supplying air to fuel cells, comprising a compressor, which is connected up from the fuel cell and which has at least one compressor casing. Said compressor is provided in the form of a rotary-vane c...  
WO/2004/053298A1
A volume expander is provided with a penetration passage (72) penetrating in an expansion chamber (62) between an intermediate position and outflow position of an expansion process. This makes it possible that a fluid on the outflow side...  
WO/2004/044432A1
Disclosed is a compressor which can prevent friction loss and abrasion of components generated at a sliding part and enhance a performance by installing friction reducing members (145, 155) between a rotational shaft (120) and a radial b...  
WO/2004/040141A1
A hermetic compressor having a Z-plate comprises: a cylinder fixed in a casing for forming a compression chamber; upper and lower bearings (20, 22) hermetically mounted at upper and lower surfaces of the cylinder (19), respectively for f...  
WO/2004/038226A1
Disclosed is a compressor, in which a compression space (V) is divided by a compression member (23), and compression capacities of the divided compression spaces (V1, V2) are differently formed thus to make compression load generated at ...  
WO/2004/036044A1
The invention relates to a compressor for refrigerating medium, comprising: an outer housing (10); a helical compressor (12) that is placed inside the outer housing (10); an outlet (36), which is located in the bottom (20) of the station...  
WO/2004/033912A1
The present invention relates to a rotary compressor and is concerned with that type of compressor which is of oil sealed type, that is to say the type in which oil is injected into the compressor space and is subsequently removed from t...  
WO/2004/033916A1
The present invention relates to a rotary compressor and is concerned with that type of compressor which is of oil sealed type, that is to say the type in which oil is injected into the compression space and is subsequently removed from ...  
WO/2004/033913A1
The present invention relates to a rotary compressor and is concerned with that type of compressor which is of oil sealed type, that is to say the type in which oil is injected into the compression space and is subsequently removed from ...  
WO/2004/031585A1
A screw pump includes a pair of screw rotors (2a, 2b) having teeth which are held in mesh with each other for drawing and discharging a fluid by rotating the screw rotors (2a, 2b) synchronously in opposite directions. The teeth of the sc...  
WO/2004/029523A2
The subject system can provide heat stress relief to individuals operating under, for example, hazardous conditions, or in elevated temperatures, while wearing protective clothing. The subject invention also relates to a condenser for tr...  
WO/2004/029462A1
The invention is intended to enable oilless operation that is indispensable for a pump which is used to supply air to a fuel battery, to enable easy and accurate alignment between the axes of a pump mechanism and a motor, and to reduce t...  
WO/2004/029461A1
A scroll compressor comprises a compression mechanism portion (4), a main shaft (5) for driving the compression mechanism portion (4), an electric motor (7) for driving the main shaft (5), and a journal bearing portion (20) for supportin...  
WO2003083311B1
A motor pump (10) includes a pump head (22) for pressurizing a fluid and an electric motor for driving the pump head. Within the pump head, radial forces produced in two symmetrical pumping zones are balanced against each other to reduce...  
WO2002097274A8
The invention mainly concerns a rotor with reduced wear, and a pump comprising same. Said rotor with axis YY' comprises a blade-holder made of less hard material (37), at least one blade, an element made of a harder material for transmit...  
WO/2004/016997A1
The present invention provides a pumped helium circuit comprising a compressor (14) with a high pressure port (16) and a low pressure port (18) each connected to a supplied equipment (61, 63, 65, 67) to respectively supply compressed hel...  
WO/2004/011808A1
A flow-limiting member (70) on the outer periphery of which a spiral passage (60a) is formed is inserted in a high-pressure oil introducing passage (60) inside an end plate (26a) of a movable scroll (26). The high-pressure oil introducin...  
WO/2004/011809A1
A horizontal rotary-type compressor (1) has an electric compressor main body (3) received in a tightly closed container (2) that is long sideways. The electric compressor main body (3) comprises a horizontally supported rotation shaft (1...  
WO/2004/010001A1
A scroll compressor (1) comprising an electric motor (2), a fixed scroll (3), a swing scroll (4), a low pressure chamber (5) into which suction gas is introduced, and a high pressure chamber (6) into which delivery gas is introduced, whe...  
WO2003083311A3
A motor pump (10) includes a pump head (22) for pressurizing a fluid and an electric motor for driving the pump head. Within the pump head, radial forces produced in two symmetrical pumping zones are balanced against each other to reduce...  
WO/2004/005719A1
A compressor comprises a sealed chamber (210) to which a suction pipe (201) and a discharge pipe (202) are communicated, a motor unit (212) fixed in the sealed chamber (210) and consisting of a stator (216) and a rotor (218) for generati...  
WO/2004/001230A1
A method of operating apparatus for controlling the pressure in a process chamber (10), the apparatus comprising a first pump unit (14) having an inlet in fluid connection with an outlet of said process chamber, and a second pump unit (1...  
WO/2003/106843A1
A scroll compressor wherein in order to control noise and vibration produced due to a variation in the self-rotation torque of a movable scroll (26) and to prevent such control from imposing limitations on the design of vortex shapes, th...  
WO/2003/102422A1
The present invention relates to a compressor and method for operating a compressor comprising a first stage comprising a first stage bypass cavity and a first stage outlet, an intercooling zone in communication with said first stage out...  
WO/2003/100258A1
Dual-shaft vacuum pumps are driven as a rule by asynchronous motors. The asynchronous motor rotors that are configured as cage rotors are relatively heavy and long and must therefore be supported by support bearings. The aim of the inven...  
WO/2003/098128A1
A refrigerating machine comprises a compressor (1) for compressing a working medium that expands in an evaporator (11) via a geared turbine (15).  
WO/2003/095841A1
The invention relates to a compressed gas production installation comprising: at least two compressors (4, 6, 8) which are connected to a compressed gas circuit (12, 20) and, for each compressor (4, 6, 8), a first line (26, 28, 30) for c...  
WO/2003/093675A1
In a compressor having a noise reducing apparatus capable of minimizing noise propagated to the outside of a casing (50), by constructing a bottom cap (53) of a casing (50) as a double wall structure (53, 55) and naturally filling oil in...  
WO/2003/093678A1
According to the invention, a vacuum pump is disclosed comprising a screw-rotor pump having a compression section (8) and an expansion section (7), and wherein a discharge (10) from the compression section communicates with at least one ...  
WO2003036094A3
The invention relates to a vacuum pump, especially for brake servo units in motor vehicles. Said vacuum pump comprises a housing in which a driven plastic rotor is received in a rotatable manner.  

Matches 601 - 650 out of 7,654