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Patent Searching and Data


Matches 101 - 150 out of 629

Document Document Title
WO1998026181A3  
WO/1998/046885A1
Disclosed is a vacuum pump fitted with a liquid mechanical pump for pumping out gas, for example against the atmospheric pressure. According to the invention, the liquid of the liquid mechanical pump (6) is an inert fluid; the liquid mec...  
WO/1998/028542A1
The invention concerns an impeller for a liquid ring machine, said impeller comprising a plurality of blades which are connected to the impeller hub and to a support disc, the front face of the impeller hub and the rear face of the suppo...  
WO/1998/026181A2
The invention relates to a gerotor pump for aqueous viscous media which has preferably a two-piece pump housing consisting of pump chamber housing (3) and connection cover (29), and has, in the pump chamber housing, a pump chamber in the...  
WO/1998/005866A1
The invention relates to an actuator, such as a liquid ring machine, and a method in an actuator, such as transferring of fluid. The machine (10) comprises a casing part (11) within which a rotatable blade rotor means (2) is arranged. Th...  
WO/1997/009482A1
The invention relates to a centrifugal suspension pump with gas separating means, comprising a pump wheel (3) with a hub (27), pump vanes (30) in a front pump chamber part (4A) facing the inlet, pump vanes in a rear pump chamber part (4B...  
WO/1997/005392A1
The invention concerns a liquid ring machine in which decrease in flow is reduced in that the machine housing (1) is covered at least on its inner periphery (3) with a layer (4) comprising a structured surface with reduced surface roughn...  
WO/1996/022467A1
A rotating liquid ring compressor/turbine (RLRC/T), including a rotor having a core (6) and a plurality of radially extending vanes (8) mounted thereon, a tubular jacket (4) having outer and inner lateral portions, eccentrically, rotatio...  
WO/1996/020346A1
A liquid ring gas pump has a pressure chamber and a pressure pipe connected to the highest geodesic point of the pressure chamber. A tubular silencer is suspended from the pressure pipe and extends into the pressure chamber. In order to ...  
WO/1996/012557A1
The invention concerns an arrangement in autoclaving systems, wherein an autoclaving chamber (2) is evacuated by means of a vacuum pump (8) of liquid ring type, which pump is connected to the chamber (2) by way of an outlet line (7). The...  
WO/1995/029340A1
An annular liquid gas pump with working chamber containing a floating impeller (17) and a connecting housing (2) separated therefrom by a control plate (13). On one side of a hub chamber (11) suitable for accepting a slip-ring seal (12),...  
WO/1995/015439A1
A device in a vacuum pump (23) of the liquid-ring type, serving a pulp pump and having a cylindrical vacuum chamber (25) and an impeller (26) eccentrically journalled in the vacuum chamber to rotate therein together with a liquid ring (2...  
WO/1994/023210A1
A method for non-destructive compression of a reactive gas such as ozone employs a liquid used as a compressant or sealant in a compressor (100) where the liquid is substantially free of elements which decompose the gas. Provision is als...  
WO/1994/019610A1
A process for operating a liquid ring machine (1), in which a partial working chamber (10 or 11) of the liquid ring machine (1) is separated from the operating liquid supply and emptied of the operating liquid to the point at which the p...  
WO/1994/017309A1
When liquids are conveyed together in the liquid ring of a liquid ring machine (1), there results an increased power requirement and a deterioration of the running characteristics of the rotor (8). A liquid ring machine (1) for selective...  
WO/1994/016227A1
Liquid ring pumps have an annular clearance substantially filled with compressed gas between a stationary housing and a rotating liner inside the housing. The compressed gas provides a gas bearing which supports the liner for rotation re...  
WO/1994/003236A1
The invention concerns a device for aspirating gases from, in particular, the topsoil. Efficient protection against explosions is provided by virtue of the fact that the suction fan or underpressure generator is designed as a water-ring ...  
WO/1993/022562A1
In order to decalcify a liquid ring machine economically and in a short time, reliably preventing the liquid ring machine from being blocked during its standstill phase by the consolidation of lime sludge, a device (7; 9; 11; 12) is prov...  
WO/1993/020333A1
The liquid-ring machine described is of a two-stage (3, 4) design. A rotor (1) comprising two impellers (13, 14) and fitted with discs (1a to 1d) is housed in a multi-component housing (2a to 2c). Located in each stage (3, 4) is a liquid...  
WO/1993/003281A1
The invention relates to a control unit for a liquid ring compressor having at least one suction and one delivery slot (2 and 3) and several valve-controlled outlet apertures (5) fitted upstream of the delivery slot (3). An improvement i...  
WO/1993/001396A1
A cooling apparatus (10) for cooling the compressant (26) in a liquid ring vacuum pump (30) comprises a closed liquid reservoir (12) located upstream of the suction line (28) to the pump (30) and a separator tank (14) containing a volume...  
WO/1992/021432A1
The auxiliary or working liquid is cleaned by being urged through a pervaporation membrane module (3), then the permeate stream from the membrane module is led through a condenser (4), where the impurities concentrated in the permeate st...  
WO/1992/020925A1
A multiple flow, liquid ring pump has a roctor housing (1) that encloses the rotor of the pump. A shield (2 or 3) which projects at least partially over the rotor housing (1) in the radial direction is arranged on each front side of the ...  
WO/1992/011458A1
A pump for pumping pulp, comprising a first impeller (12) for pumping the pulp in fluidized state, and a gas evacuation pump (23) of liquid ring type comprising a pump housing (24) with a chamber (25) and a second impeller (26) rotating ...  
WO/1991/019904A1
Rotary fluid pumping apparatus suitable for pumping fluids including a mixture of liquids and gases comprises a vaned rotor (12) rotatable about a rotor axis (13) within a pump chamber (11) having an inlet port (16) and an outlet port (1...  
WO/1991/007592A1
The problem of space and weight limitations for liquid ring pumps and regenerative pumps in aerospace applications is solved by a pump having a housing defining a first chamber (22) and a second chamber (24) independent of the first cham...  
WO/1991/006778A1
A regenerative pump (1) and method of discharging pressurized fluid therefrom wherein direct flow of pressurized fluid from side channels (10, 11) of the pump into discharge ports (16, 17) of the pump is blocked by walls (18, 19) of the ...  
WO/1991/006748A1
A regenerative pump (1) and method of introducing fluid in the pump wherein direct flow of fluid from inlet ports (14, 15) of the pump into side channels (10, 11) of the pump is blocked by walls (18, 19) of the pump casing (2) thereby re...  
WO/1990/015250A1
A liquid ring machine comprises an outer drum having a cylindrical outer wall (1) surrounding a central axis (2), a vaned rotor (3) rotatable within the drum about an axis (4) which is parallel to, but offset from, the central axis (2) o...  
WO/1989/012168A1
The invention applies to a liquid ring compressor in which there is annular space (10) between the rotor (6) and the rotor axle (5), the annular space being connected with the rotor compression zone through two or more discharge openings...  
WO/1986/000117A1
Compressor unit with liquid ring having a horizontal shaft and a compressor casing wherein, connected to the compression stage, there is provided a pressure chamber in connection with a discharge pipe (19). The pressure chamber is divide...  
WO/1985/001086A1
A gerotor pump is arranged for unidirectional flow irrespective of direction of rotation of the pump by arranging for displacement of the axis of eccentricity of the annulus and rotor upon drive reversal, the annulus being mounted in a c...  
WO/1981/000438A1
Discharge or unloading orifices (70), (71), (73), are provided in both stages (20), (48) of a two stage liquid ring pump to bleed seal liquid under various vacuum conditions and to render the pump immune to the effects of variations in r...  
JP6411040B2  
JP2018138777A
To decompose a pump without removing a pipe from the pump.A liquid sealing vacuum pump includes at least one casing 2 storing an impeller 3, and an exhaust casing 9 forming a flow passage configured to discharge to the outside gas exhaus...  
JP2018131945A
To provide a liquid seal vacuum pump capable of forming a blade chamber as a space sealed by an impeller while preventing each blade chamber from communicating with each other via a shaft seal part storage space without performing design...  
JP2018123707A
To provide a two steps liquid seal vacuum pump capable of highly setting the characteristic frequency of a body of rotation including an axis of rotation while reducing the axial length of the axis of rotation in a cantilever structure t...  
JP2018522163A
A Liquid seal type pump is provided with fixed housing which demarcates interior space, and a driving shaft rotatably attached in fixed housing. A driving shaft has the axis of rotation. An impeller is provided with a plurality of braids...  
JP2018520305A
A fluid ring pump is used in order to carry out pump feeding of various kinds of fluid. Although corrosive fluid is operation fluid and can be processed easily, it may cause corrosion of a pump mechanism. The present invention provides a...  
JP2018089622A
To provide a liquid purification system by vapor compression distillation including a liquid ring pump with a rotatable housing.A liquid distillation system includes: (a) an inflow part for receiving untreated liquid; (b) a vaporizer cou...  
JP2018079466A
To provide a liquid purification system by vapor compression distillation including a liquid ring pump with a rotatable housing.A liquid distillation system includes: (a) an inflow part for receiving untreated liquid; (b) a vaporizer cou...  
JP6302411B2  
JP2018505343A
A pump contains the housing containing a fluid and the rotor containing a plurality of braids which extend from a shaft to a diameter direction and demarcate cone space. A port member is arranged in cone space. A port member demarcates a...  
JP2018501429A
A housing which demarcates an internal operating space where a compressor type Liquid seal type pump was set as a size which stores Sealing liquid of gas of a predetermined quantity, and a predetermined quantity, It connects with a housi...  
JP6151710B2  
JP6149021B2  
JP5960962B2  
JP2016120493A
To provide a liquid purification system by vapor compression distillation including a liquid ring pump with a rotatable housing.A liquid distillation system includes: (a) an inflow part for receiving untreated liquid; (b) a vaporizer cou...  
JP2016056738A
To provide a vacuum pump system capable of suppressing occurrence of failure or troubles even in a case where liquid enters a seal type vacuum pump, and a wet type vacuum sprinkler system using the vacuum pump system.A vacuum pump system...  
JP2015203391A
To prevent occurrence of cavitation irrespective of a variation of sealed water temperature in a decompression device employing a water-sealing type vacuum pump, and to prevent a leak valve from being opened uselessly and improve an oper...  

Matches 101 - 150 out of 629