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| Number | Title | Issue Date |
| 7412831 | Integral cooling system for rotary engine A rotary combustion engine (12) with a self-cooling system comprises a heat exchanging interface for discharging excess heat from the rotary combustion engine (12), and a direct drive fan (44) integrated on the rotary engine output shaft (26 | 08/19/2008 |
| 7364414 | Fluid pump system A fluid pump system has a cover, a fluid pump and a conduit. An inside of the cover is divided into a main chamber and a sub chamber. The fluid pump is accommodated in the main chamber. The conduit extends from the fluid pump to an outside of the cover through the s... | 04/29/2008 |
| 7353784 | Rotary internal combustion engine A rotary internal combustion engine has a circular inner chamber, which houses a plurality of cylinders with reciprocating pistons that move in a radial direction towards and away from the center of the inner chamber. A flywheel with distinct vanes or portions is po... | 04/08/2008 |
| 7351043 | Horizontal compressor end cap A substantially horizontal compressor including a housing having a main body portion with an open end. An end cap is secured to the main body portion with the end cap being provided with a plurality of apertures. The hermetic terminal body of the compressor is seala... | 04/01/2008 |
| 7329108 | Scroll fluid machine A scroll fluid machine comprises a housing having a fixed scroll and an orbiting scroll revolved by a driving shaft which is driven by a motor behind the housing. A blowing fan is provided between the orbiting scroll and the motor. Rotation of the fan causes decompr... | 02/12/2008 |
| 7261522 | Fluid manifold for a welder A fluid manifold usable with a welder and air compressor combination. The manifold is constructed of a single unitary manifold block and which is divided into two separate fluid communication systems that are isolated from each other by the manifold block itself. Ea... | 08/28/2007 |
| 7232295 | Tempering method for a screw-type vacuum pump A screw-type vacuum pump (1) is tempered such that characteristics of the pump are not substantially altered when the pump is subjected to thermal stress. In order to achieve said aim, cooling is adjusted according to an operating state of the screw-type vacu... | 06/19/2007 |
| 7232296 | Serviceability features for a scroll fluid machine A scroll fluid machine comprises an orbiting scroll and a stationary scroll. The orbiting scroll comprises an orbiting end plate having an orbiting wrap, and the stationary scroll comprises a stationary end plate having a stationary wrap. The orbiting scroll is supp... | 06/19/2007 |
| 7168480 | Off-axis cooling of rotating devices using a crank-shaped heat pipe The present invention is a crank-shaped heat pipe for cooling rotating machinery and a corresponding method of manufacture. The crank-shaped heat pipe comprises a sealed cylindrical tube with an enclosed inner wick structure. The crank-shaped heat pipe includes a co... | 01/30/2007 |
| 7165933 | Screw pump for transporting emulsions susceptible to mechanical handling A screw pump for transporting a viscous product is described comprising a cylindrical housing connected to a removable bottom piece in one end and a removable cap in the opposite end, a rotor having one or more screw blades connected to a driving motor, an inlet and... | 01/23/2007 |
| 7153109 | Variable capacity rotary compressor A variable capacity rotary compressor includes a hermetic casing, a housing installed in the hermetic casing to define therein first and second compression chambers having different capacities, and a compressing unit placed in the first and second compression chambe... | 12/26/2006 |
| 7077635 | Pump comprising a water supply A pump (12) for generating pressure and/or negative pressure comprises a pump chamber having a high-pressure port (16) and a low-pressure port (14), and two at least two-blade rotors which are mounted in the pump chamber on two parallel shafts o... | 07/18/2006 |
| 7066722 | Discharge valve for compressor A compressor assembly including a compressor mechanism, a compression chamber and a discharge chamber. A discharge port provides fluid communication between the compression chamber and the discharge chamber. A valve seat circumscribes the discharge port. A discharge... | 06/27/2006 |
| 7059839 | Horizontal compressor end cap with a terminal, a visually transparent member, and a heater well mounted on the end cap projection A substantially horizontal compressor including a housing having a main body portion with an open end. An end cap is secured to the main body portion with the end cap being provided with a plurality of apertures. The hermetic terminal body of the compressor is seala... | 06/13/2006 |
| 7056108 | Cooled screw-type vacuum pump A screw-type vacuum pump (1) includes a pump housing (2, 6) with rotors (3, 4). A liquid cooling system cools the rotors and a drive motor (9). In order to improve the cooling of said pump, an external air-flow impelled cooling system is ... | 06/06/2006 |
| 7052249 | Air/oil separating tank—thermostatic valve—minimum pressure valve—oil cooling radiator—compressed air cooling radiator group A group is provided for a compressed air distribution unit of the type including an intake regulator, an oil bath-screw type compressor, an air/oil separating tank, a minimum pressure valve, an air cooling radiator, a pressurized air collection tank, a thermostatic ... | 05/30/2006 |
| 6929455 | Horizontal two stage rotary compressor A hermetic two stage rotary compressor having a housing with a stationary shaft fixedly mounted in the housing. A motor having a rotor and a stator is mounted in the housing with the rotor being rotatably mounted on the shaft. A pair of compression mechanisms are ro... | 08/16/2005 |
| 6913452 | Offset thread screw rotor device A screw rotor device has a housing with an inlet port and an outlet port, a male rotor, and a female rotor. The male rotor has a pair of helical threads with a phase-offset aspect, and the female rotor has a corresponding pair of helical grooves. The female rotor co... | 07/05/2005 |
| 6866490 | Water-injected screw compressor The invention relates to a water-injected screw compressor which comprises a compressor element (1) with an interior space (3), a suction conduit (7) which connects to an inlet part (6), situated at the top of this interior space (3 | 03/15/2005 |
| 6733258 | Gas compressor apparatus having a discharge pulsation reducing cooler A discharge pulsation reducing cooler B is provided to cover the circumferential periphery of a compressor A. The discharge pulsation reducing cooler B has a delivery passage 41 and a jacket 43 covering that, and cooling water is circulated through a p... | 05/11/2004 |
| 6719546 | Arrangement for controlling the flow of a coolant fluid in a compressor The invention comprises an arrangement for controlling the flow of a coolant fluid in a compressor, in particular in a rotary compressor, in which a coolant-fluid inlet for coolant fluid discharged from the compressor and a coolant-fluid outlet for returning the coo... | 04/13/2004 |
| 6701220 | Industrial robot device An industrial robot including a manipulator having a control system. The manipulator includes a common gear housing having first and second inner compartments connected with a passage channel. First and second gears are arranged in the first and second in... | 03/02/2004 |
| 6695602 | Bacterial growth inhibition in a circulation system comprising a compressor The present invention relates to a compressor (1) that has an associated coolant circulation system (1, 4, 6, 8, 11, 13), and also to a method of maintaining a low bacteria content in the coolant circulating system (1, 4, 6, 8, 11, 13), in which method ga... | 02/24/2004 |
| 6688857 | Compressor and dehydrator system A system for compressing gas comprised of a liquid lubricated rotary positive displacement compressor system. The system contains a rotary positive displacement compressor, a device for separating a mixture of gas and liquid to produce a separated liquid ... | 02/10/2004 |
| 6551082 | Oil free type screw compressor In an oil-free type screw compressor including a low-pressure-stage compressor main body and a high-pressure-stage compressor main body, when the power of an motor is transmitted to an oil pump via a gear to start the pump, the lubrication oil stored in a... | 04/22/2003 |
| 6416302 | Rotary helical screw-type compressor having a thermally separated oil supply container A screw compressor has a gear housing (1) from one side of which the rotor housing (3) containing the two screw rotors freely projecting outward. An oil supply container (7) is also located freely projecting out from the gear housing (1) approximately par... | 07/09/2002 |
| 6409489 | Compressor installation with water-injected compressor element The invention concerns a compressor installation with a water-injected compressor element (1) having a water cycle (6) and a water supply device (15) for supplying water to the water cycle (6), containing a water supply line (16) with a controllable valve... | 06/25/2002 |
| 6394777 | Cooling gas in a rotary screw type pump A rotary screw type pump is provided with internal cavities within the rotors. The rotors include shaft portions that extend out from the casing that contains the screw portion of the rotors. The cavities extend from the screw portion of the rotors at the... | 05/28/2002 |
| 6371742 | Cooling device The invention concerns a cooling device wherein the chamber (2) represents cooling channels arranged in the thickness of the pump cylinder walls. The steam flux (7) generated by the heat to be evacuated reaches the upper end of the condenser (1) and comes... | 04/16/2002 |
| 6301898 | Rotary positive displacement device A rotary device containing a housing having a curved inner surface with a profile equidistant from a trochoidal curve, an eccentric mounted on a shaft disposed within the housing, a rotor mounted on the eccentric shaft which contains at least three inters... | 10/16/2001 |
| 6149408 | Coalescing device and method for removing particles from a rotary gas compressor A compressor system for creating essentially liquid-free fluid flows includes a screw compressor that has an inlet port for receiving a low pressure gas stream, a main lubrication injection port for receiving an injection branch of a filtered lubrication ... | 11/21/2000 |
| 6102683 | Compressor installation having water injection and a water treatment device The invention relates to a compressor installation (10) with an injection-cooled compressor (12) and a method for compressing a gas in a compressor installation. In order to allow for an environmentally acceptable compression of gaseous media, the compres... | 08/15/2000 |
| 6017205 | Scroll compressor A scroll-type compressor is disclosed which includes both a high pressure lubricant sump and a low pressure lubricant sump. Lubricant from the low pressure lubricant sump is supplied to the various bearing, thrust surfaces and other moving parts to lubric... | 01/25/2000 |
| 6010320 | Compressor system having an oil separator In a compressor system, a compressor main unit compresses air taken in and exhausts the compressed air with oil. The compressed air and the oil exhausted from the compressor main unit are stored in a reservoir. A head tank has an internal space and is cou... | 01/04/2000 |
| 5947711 | Rotary screw air compressor having a separator and a cooler fan assembly A rotary-screw air compressor having a separator, a cooler fan assembly, and a mounting apparatus. The separator has a first chamber and a second chamber. The first chamber separates compressed air and coolant. The second chamber separates compressed air ... | 09/07/1999 |
| 5842842 | Spiral compressor having an oil chamber in the rotor Spiral compressor which contains a housing (1) with the fixed spiral (2); a moving rotor (3) in this housing (1) with the moving spiral (4) working in conjunction with the fixed spiral (2); and a crankshaft (5) containing a main shaft (6) which is bearing... | 12/01/1998 |
| 5785149 | Screw-type compressor A screw-type compressor is described in which lubricants and cooling fluids are conducted principally through conduits maintained almost entirely within the gearcase and pressure housings of the compressor. In this arrangement according to the invention, ... | 07/28/1998 |
| 5653585 | Apparatus and methods for cooling and sealing rotary helical screw compressors In a compression system which incorporates a rotary helical screw compressor, and for any type of gas or refrigerant, the working liquid oil is atomized through nozzles suspended in, and parallel to, the suction gas flow, or alternatively the nozzles are ... | 08/05/1997 |
| 5572882 | Low pressure air cycle cooling device A low-pressure air cycle cooling device for cooling the air in a space. The invention includes a cooling chamber, generally drum-like in form, whose interior is defined by end caps and the chamber inner wall. A powered rotor assembly is carried in the cha... | 11/12/1996 |
| 5545021 | Hermetically sealed rotary compressor having an oil supply capillary passage A hermetically sealed rotary compressor includes a generally cylindrical sealed vessel having an oil reservoir defined therein for accommodating a quantity of lubricating oil, a drive unit within the sealed vessel, and a compressor mechanism within the se... | 08/13/1996 |
