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WO/2007/102496A1 |
A compressor (20) includes compressing mechanisms (61, 62) having four compression chambers (61, 62, 63, 64). In the compressor (20), the first compression chamber (61) and the second compression chamber (62) have volume fluctuation cycl...
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WO/2007/088989A1 |
The present invention relates to a dry vacuum pump unit capable of achieving ultimate pressure of about 1 Pa. The vacuum pump unit includes a main pump (15) disposed at an outside-pressure side, and a booster pump (16) disposed at a vacu...
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WO/2007/065486A1 |
The invention relates to a multi-step helical screw compressor unit which consists of a drive housing (90), wherein a first, second, and third helical screw compressor (60, 70, 80) are secured in a protruding manner parallel to each othe...
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WO/2007/063341A1 |
A multi-stage Roots vacuum pump comprises a plurality of stator slices. Each stator slice comprises a pumping chamber for receiving intermeshing Roots rotor components. The pump further comprises a channel arrangement (122) for conveying...
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WO/2007/052569A1 |
A expander having n number of rotary fluid mechanisms (n is an integer number equal to or greater than 2), a first suction hole (41b) for sucking operation fluid into a suction side space (55a) of a first fluid mechanism (41), a communic...
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WO/2007/036689A1 |
A method of pumping a gas stream containing a condensable species and a light gas and an apparatus therefore, the method comprising the steps of conveying the gas stream to a multistage vacuum pump comprising an inlet stage and an exhaus...
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WO/2007/032337A1 |
A rotary fluid machine (10A) comprising a hermetic container (1) having a bottom part used as an oil reserving part, a rotary fluid mechanism (15)(expansion mechanism) which is installed at the upper part of the hermetic container (1) an...
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WO/2007/026047A1 |
The invention relates to a cooling system for an aggregate set, in which the aggregate set comprises an axial flux electric machine (1) with a disc-like rotor (2) and a disc-like stator (3) , and a screw compressor (4) with cooling. In a...
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WO/2007/015056A1 |
A multistage vacuum pump comprises a stator housing a multistage rotor assembly, each stage comprising intermeshing Roots rotor components, wherein the tip radius of the rotor components at an inlet stage of the pump is larger than the t...
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WO/2007/014443A1 |
A hermetic compressor with a heat dissipating system, comprising: a casing (1) within which is defined an oil sump (7); a cylinder block (2) mounted inside the casing (1) and defining a cylinder (3), for compression of a refrigerant flui...
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WO/2007/000854A1 |
A rotating shaft (56) of a compression mechanism (21) and a rotating shaft (36) of an expansion mechanism (22) are connected at a connection section (80), and oil feeding paths (38, 68) are formed inside the rotating shafts (36, 56), res...
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WO/2007/000815A1 |
A method of supplying lubrication oil to a two-stage screw compressor in which a low-pressure stage screw compressor (2) and a high-pressure stage screw compressor (3) are integrally constructed. In the compressor, a compression space (c...
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WO/2006/129448A1 |
An electric compressor incorporating an electric motor for driving a compressor mechanism and containing, in the compressor housing, a joint between an external terminal for supplying power to the electric motor and an end of a wire from...
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WO/2006/125908A1 |
The invention relates to a scroll-type refrigerant compressor. The inventive compressor includes a drive shaft (26) comprising an off-axis lubrication conduit (35) which is supplied with oil from an oil pan (31) located in the lower part...
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WO/2006/126399A1 |
A hermetic compressor where an electric motor section (3) driven by a commercial power source and compression mechanisms (2A, 2B) are received in a hermetic case (1), and where the compression mechanisms (2A, 2B) have cylinders (8A, 8B) ...
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WO/2006/117940A1 |
A blade (25) is advanced and retreated so as to take the following states: a first state where the forward end of the blade is in sliding contact with the inner peripheral surface of an outer cylinder (21a), a second state where the forw...
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WO/2006/106814A1 |
A hybrid compressor having a first compression mechanism driven only by an outside drive source; a second compression mechanism driven only by a built-in electric motor; suction paths for sucking a gas to be compressed, into the first co...
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WO/2006/103821A1 |
A scroll expander capable of providing high efficiency in wide operating conditions by suppressing a leakage loss and the lowering of a recovery power by a simple structure. The scroll expander comprises an expanding mechanism (5) having...
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WO/2006/097679A1 |
A vacuum pumping arrangement for evacuating a chamber is described, in which the pumping arrangement comprises a plurality of booster pumps (12) connected in parallel to an inlet conduit (16) for receiving gas from the chamber (20), a pl...
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WO/2006/089828A1 |
The invention relates to a single-shaft positive-displacement pump (10) comprising two pump stages (12, 14) which are provided with a pump rotor (13, 15) and a drive motor (16), respectively. Said drive motor (16) is axially arranged bet...
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WO/2006/082366A1 |
A pumping system for evacuating an enclosure comprises a pumping mechanism (30), a motor (32) for driving the pumping mechanism, and a controller (36) for controlling the motor. The controller sets a maximum value for a rotational freque...
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WO/2006/082357A1 |
An ejector pump (100) comprises a chamber having a gas mixing portion (108) and a diffuser portion (112) . An inlet (10S) conveys a gas stream into the gas mixing portion, and an outlet (114) conveys the gas stream from the diffuser port...
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WO/2006/073048A1 |
A refrigerating cycle device has a pressure switching mechanism (K) for performing, depending on the magnitude of load, switching between a normal compression operation and an operation stop of one compression mechanism section (2) of a ...
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WO/2006/068664A2 |
In a refrigeration system, an asymmetric scroll expander has an orbiting scroll element engaged with a fixed scroll element. The orbiting scroll element and fixed scroll element can define a first expansion pocket and a second expansion ...
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WO/2006/064985A1 |
A multi-stage rotary compressor comprises: a casing (100) having a sealed space therein; a driving unit (200) installed in the casing, for generating a driving force; a first compression unit (300) and a second compression unit (400) for...
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WO/2006/061429A1 |
Disclosed is a compressed-air engine for driving terrestrial vehicles, watercraft, and aircraft, especially motor vehicles, said engine being embodied as a rotary piston engine according to the principle of the Wankel engine. The inventi...
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WO/2006/061559A1 |
Scroll-type pumping apparatus comprises a stator (104) comprising a fixed scroll member (106) having an end plate with a first spiral wrap (118) extending therefrom, and an orbital scroll member (108) having an end plate with a second sp...
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WO/2006/057212A1 |
A compressor integrated with an expander, having a constant high operation efficiency by reducing the bypass pipeline, embodying valve control, reducing the dead space on the suction side, and recovering power from high-pressure working ...
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WO/2006/050812A1 |
A breather device for the crankcase of a forced induction internal combustion engine in a motor vehicle is disclosed, comprising a breather line (38), connected to the crankcase of the internal combustion engine (10), opening out in an i...
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WO/2006/035934A1 |
Oil supply grooves (74, 84) are formed in the rotary shaft (70) of a compression mechanism (50) and the rotary shaft (80) of an expansion mechanism (60) that are integrated with an electric motor (40). Both rotary shafts (70, 80) are cou...
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WO/2006/016763A1 |
Disclosed are a capacity variable type twin rotary compressor and a driving method thereof and an air conditioner using the same and a driving method thereof. A vane (124) can quickly and stably maintain contact with a rolling piston (12...
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WO/2006/006297A1 |
A rotary fluid machine, comprising a cylinder (21) having an annular cylinder chamber (50), an annular piston (22) stored in the cylinder chamber (50) eccentrically to the cylinder (21) and partitioning the cylinder chamber (50) into an ...
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WO2005038255B1 |
The present invention relates to an evacuation apparatus for evacuating a vacuum chamber of a substrate processing apparatus for processing a substrate such as a semiconductor wafer or liquid crystal panel. An evacuation apparatus accord...
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WO/2005/124156A1 |
A multi-cylinder rotary compressor is constructed by receiving in a sealed chamber (1) a rotating shaft (4), an electric motor section (3), and first to third compression mechanism sections (2A-2C). The rotating shaft (4) is rotatably su...
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WO/2005/121558A1 |
A hermetic rotary compressor, wherein a motor part (3) and first and second compression mechanism parts (2A, 2B) connected to each other through a rotating shaft (4) are stored in a closed case (1). The second compression mechanism (2B) ...
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WO/2005/113985A1 |
A rotary compressor in which a piston (22) is placed in cylinder chambers (C1, C2) of a cylinder (21), which is constructed such that the cylinder (21) and the piston (22) perform relative eccentric rotation motion, and which has a compr...
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WO/2005/111427A1 |
A seal ring (29) is provided between an end plate (26A) of an eccentric rotating body (21) and a support plate (17), and a high fluid pressure is applied to the end plate (26A) to cause an axial pressing force to be applied to the end pl...
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WO/2005/108794A1 |
A rotary fluid machine, comprising a cylinder (21) having an annular cylinder chamber (50), an annular piston (22) stored in the cylinder chamber (50) eccentrically to the cylinder (21) and partitioning the cylinder chamber (50) into an ...
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WO/2005/108795A1 |
A rotary fluid machine has cylinders (21) each having a cylinder chamber (50) and has annular pistons (22) each received in the cylinder chamber (50) while being eccentric relative to the cylinder (21) and partitioning the cylinder chamb...
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WO/2005/108793A1 |
A rotary compressor has a cylinder (21) having an annular cylinder chamber (50), an annular piston (22) received in the cylinder chamber (50) so as to be eccentric relative to the cylinder (21) and partitioning the cylinder chamber (50) ...
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WO/2005/103496A1 |
A rotating fluid machine is constructed such that an annular piston (22) is received inside annular cylinder chambers (C1, C2) of a cylinder (21) to form an outer cylinder chamber (C1) and an inner cylinder chamber (C2), that the cylinde...
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WO/2005/090875A1 |
A low pressure in a refrigeration cycle and a refrigerant temperature at the outlet of a radiator under reference operating conditions are a reference low pressure and a reference refrigerant temperature, respectively, and a high pressur...
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WO/2005/088077A1 |
A rotary type expansion machine (60) is provided with two rotary mechanisms (70, 80). The first rotary mechanism (70) has a displacement volume smaller than that of the second rotary mechanism (80). The first low pressure chamber (74) of...
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WO/2005/088079A1 |
The upper and lower end surfaces (67b, 67c) of a rotary piston (67) are formed with annular seal grooves (91) extending along the annular end surfaces (67b, 67c), and an annular lip seal (92) is fitted in each of the seal grooves (91). T...
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WO/2005/088078A1 |
In a compression/expansion unit (30) serving as a fluid machine, a compression mechanism (50) and an expansion mechanism (60) are both received in a single casing (31). A shaft (40) which connects the compression mechanism (50) and the e...
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WO/2005/085642A1 |
A volumetric compressor (1) of the type comprising a pair of rotors (2) cooperating with each other and housed inside a compressor body (3), in which it is possible to identify a first flange (4), arranged on the suction side of the comp...
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WO/2005/080796A1 |
A cylinder (2), a roller (4), an upper bearing member (7) and a lower bearing member (8) form a space, the space is partitioned by a vane (5) into working chambers (12). Working fluid is sucked into the working chamber (12) through a suc...
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WO/2005/080756A1 |
An exhaust heat energy recovery device for an internal combustion engine capable of efficiently recovering exhaust heat energy without increasing the exhaust back pressure of the internal combustion engine and a Brayton cycle device usab...
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WO/2005/080797A1 |
A compressor comprising a container which encloses a compressor mechanism, a motor and an oil reservoir at its bottom. A wave-suppressing member is provided at the interface between the working fluid and the oil. A plurality of verticall...
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WO/2005/078281A1 |
A vacuum device used in the field of semiconductor production and capable suppressing power consumption. The vacuum device comprises vacuum containers (10), (11), (12), (13), (14), and (15) having gas inlets and gas outlets, vacuum pumps...
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