101 |
Vane pump and vapor leakage check system having the same |
US12324981 |
2008-11-28 |
US07993119B2 |
2011-08-09 |
Mitsuyuki Kobayashi; Hitoshi Amano |
A vane pump includes a motor, a rotor rotated by the motor, a first casing having a pump chamber accommodating the rotor and a first flat part in a periphery of an opening of the pump chamber, a second casing having a second flat part joined to the first flat part to gas-tightly or liquid-tightly close the opening of the pump chamber, an elastic sheet disposed between the second casing and the motor, and a screw penetrating the first casing, the second casing and the elastic sheet. The screw is configured to fasten and join the first casing, the second casing and the elastic sheet to the motor. |
102 |
VANE-TYPE COMPRESSOR |
US12342766 |
2008-12-23 |
US20090162234A1 |
2009-06-25 |
Hirotada SHIMAGUCHI; Yoshinobu MAEMURA |
A vane-type compressor includes: a cylinder block; a rotor rotating within the cylinder block; vane slots provided on the rotor; vanes each provided slidably within each of the vane slots; coil springs provided within the vane slots for pushing the vanes; guide pins each provided along each of the coil springs and directly fixed on the vanes or the rotor; and guide holes each provided for each of the guide pins and formed on the rotor or the vane. The guide holes are formed on the vanes in case where the guide pins are directly fixed on the rotor. Alternatively, the guide holes are formed on the rotor in case where the guide pins are directly fixed on the vanes. The compressor prevents chattering of the vanes and also prevents a complex structure and cost rise. |
103 |
ELECTRIC COMPRESSOR |
US12342850 |
2008-12-23 |
US20090162233A1 |
2009-06-25 |
Hirotada Shimaguchi; Masaki Watanabe; Jyunya Sugamuta |
An electric compressor (201) includes: a compressor (203) configured to compress a refrigerant, the compressor (203) having a plurality of passage ports (207) delivering the refrigerant; an electric motor (205) configured to drive the compressor (203), the electric motor (205) having a plurality of stators (17) and an accommodation chamber (213) accommodating the plurality of stators (17); a partition wall (215) separating the compressor (203) and the an accommodation chamber (213) of the electric motor (205); and a plurality of refrigerant introducing/discharging passages (219) formed at the partition wall (215) wherein the respective refrigerant introducing/discharging passages (219) are located in a circumferential direction of the accommodation chamber (213), thereby the refrigerant being introduced into and discharged from stators (17) end in the electric motor (205) through the respective refrigerant introducing/discharging passages (219). |
104 |
Instrument tilting apparatus |
US11046307 |
2005-01-28 |
US07431044B2 |
2008-10-07 |
Robert Dallas Ricker; Viet X. Nguyen; Bernard John Permar; Jerome M. Szczepaniak; Lindy T. Miller; Eric Alan Schneider; Bill Van Ocker |
An apparatus and method for adjusting the orientation of a lubricant-retaining basin is disclosed. The apparatus includes a cabinet configured for retaining a vacuum pump and a lubricant-retaining basin. A rotatable member engages the lubricant-retaining basin and elevates the back end of the basin to permit drainage of lubricant from the front end of the basin. |
105 |
ELETRIC PUMP |
US11934290 |
2007-11-02 |
US20080107550A1 |
2008-05-08 |
Toshiro Fujii |
A Roots pump has a driving shaft press fitted into a driving rotor, and a driven shaft press fitted into a driven shaft. A driving timing gear is located between an electric motor and the driving rotor. The driving rotor has a driving assist shaft that projects in a direction opposite to the driving timing gear. The specific gravity of the material of the driving assist shaft is less than the specific gravity of the material of the driving rotary shaft. A driven rotor has a driven assist shaft that projects in a direction opposite to a driven timing gear. The specific gravity of the material of the driven assist shaft is less than the specific gravity of the material of the driven rotary shaft. |
106 |
Arrangement and Method for Treatment of Compressed Gas |
US11574253 |
2005-08-29 |
US20080031742A1 |
2008-02-07 |
Terje Engervik |
An arrangement for use with a liquid cooled and/or lubricated compressor (10) for compressing gas, and incorporating provision to add liquid for cooling purposes to the gas prior to entry of the gas into the compressor, in which down stream of the compressor there is a liquid/gas separator (11) to separate the liquid from the gas and in which there is means (29) to recover heat from the liquid, and in which there is at least one filter (17 or 18) in the gas stream downstream of the liquid/gas separator, and there is a heater (19) in the gas stream downstream of the filter in which the gas is heated using heat recovered from the liquid (at 29), whereby to regulate the temperature of the pressurised gas. There may be a heat exchanger (14) between the separator and the filter There may be a refrigerant dryer group (15) arranged to cool the gas after the liquid has been separated from the gas and before the gas is passed through the filter |
107 |
Tempering method for a screw-type vacuum pump |
US10495834 |
2002-10-30 |
US07232295B2 |
2007-06-19 |
Hartmut Kriehn; Klaus Rofall; Manfred Behling |
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 vacuum pump (1), preferably to maintain a substantially constant pump gap (4). |
108 |
Portable dry air compressor system |
US11286940 |
2005-11-23 |
US20070116584A1 |
2007-05-24 |
Clemente DeRosa; David Johnson |
A portable air compressor assembly comprising a compressor configured to supply pressurized air along a first path at a first pressure. The compressor assembly further comprises at least first and second outlet valves. A first outlet path extends between the first outlet valve and the first path and a second outlet path extends between the second outlet valve and the first path. A first regulator is positioned along the first outlet path and is configured to regulate the pressure of air at the first outlet valve to a first outlet pressure distinct from the first path pressure. A second regulator is positioned along the second outlet path and is configured to regulate the pressure of air at the second outlet valve to a second outlet pressure distinct from the first path pressure and the first outlet pressure. |
109 |
Vacuum line and a method of monitoring such a line |
US11477361 |
2006-06-30 |
US20070012099A1 |
2007-01-18 |
Nicolas Becourt |
The present invention provides a vacuum line for pumping gas from a process chamber, the vacuum line comprising at least: a pump unit comprising a pump body and a motor; a gas exhaust system; first measurement means for measuring a functional parameter relating to the motor; second measurement means for measuring a functional parameter relating to the exhaust system; and prediction means for calculating the duration of use of the vacuum line. The prediction means calculate the duration of utilization of the vacuum line prior to failure of the pump unit from the measurement of a functional parameter relating to the motor provided by the first means and the measurement of a functional parameter relating to the exhaust system provided by the second means. In a variant, the vacuum line further includes third measurement means for measuring a functional parameter relating to the pump body, and the prediction means calculate the duration of use while taking account of the measurement of this parameter. |
110 |
Screw compressor |
US11367380 |
2006-03-06 |
US20060280626A1 |
2006-12-14 |
Hitoshi Nishimura; Tomoo Suzuki; Hiroshi Ohta |
A screw compressor comprising: a low pressure stage compressor body; a high pressure stage compressor body that further compresses a compressed air compressed by the low pressure stage compressor body; pinion gears for example, respectively, provided on, for example, a male rotor of the low pressure stage compressor body and, for example, a male rotor of the high pressure stage compressor body; a motor; a bull gear for example, provided on a rotating shaft of the motor; and an intermediate shaft supported rotatably and provided with a pinion gear, which meshes with the bull gear, and a bull gear, which meshes with the pinion gears. Thereby, it is possible to make the motor relatively low in rotating speed while inhibiting the gears from being increased in diameter, thus enabling achieving reduction in cost. |
111 |
Method and apparatus for highly efficient compact vapor compression cooling |
US11343431 |
2006-01-31 |
US20060150666A1 |
2006-07-13 |
Daniel Rini; Louis Chow; H. Anderson; Jayanta Kapat; Bradley Carman; Brian Gulliver; Jose Recio |
The subject invention pertains to a method and apparatus for cooling. In a specific embodiment, the subject invention relates to a lightweight, compact, reliable, and efficient cooling system. 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 transferring heat from a refrigerant to an external fluid in thermal contact with the condenser. The subject condenser can have a heat transfer surface and can be designed for an external fluid, such as air, to flow across the heat transfer surface and allow the transfer of heat from heat transfer surface to the external fluid. In a specific embodiment, the flow of the external fluid is parallel to the heat transfer surface. In another specific embodiment, the heat transfer surface can incorporate surface enhancements which enhance the transfer of heat from the heat transfer surface to the external fluid. In another specific embodiment, an outer layer can be positioned above the heat transfer surface to create a volume between the heat transfer surface and the outer layer through which the external fluid can flow. |
112 |
Oil carry-over prevention from helium gas compressor |
US10525030 |
2003-06-26 |
US20060147318A1 |
2006-07-06 |
Millind Atrey; David Crowley; Peter Daniels |
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 helium to, and receive compressed helium from, the supplied equipment; a pressure relief valve (12) operable to link the high pressure port to the low pressure port in response to a predetermined pressure differential; a non-return valve (13) located between a low pressure side of the pressure relief valve and the supplied equipment; and means for preventing oil carry-over from the compressor to the supplied equipment. |
113 |
Portable, rotary vane vacuum pump with removable oil reservoir cartridge |
US10947899 |
2004-09-22 |
US20060073033A1 |
2006-04-06 |
Gregroy Sundheim |
A portable, rotary vane vacuum pump with a rotor eccentrically mounted within the bore of a housing to substantially abut the bore at a side location. The abutting, side location is between the inlet and outlet passages of the bore in the direction of rotor rotation. A pocket is then created just above the contact area between the rotor and bore which collects and maintains a pool of lubricating oil. The pool enhances the seal at the contact area below it enabling the pump to draw a deep vacuum with just a single stage. The portable pump also includes a removable, oil reservoir cartridge mounted to the main body of the pump. Other features include a visual indicator in the cartridge to monitor the condition of the circulating oil, a step up gearing arrangement for the cooling fan, and a step down gearing arrangement for the vane pump. |
114 |
Method and apparatus for highly efficient compact vapor compression cooling |
US10625014 |
2003-07-22 |
US07010936B2 |
2006-03-14 |
Daniel P. Rini; Louis Chow; H. Randolph Anderson; Jayanta Sankar Kapat; Bradley Carman; Brian Gulliver; Jose Mauricio Recio |
The subject invention pertains to a method and apparatus for cooling. In a specific embodiment, the subject invention relates to a lightweight, compact, reliable, and efficient cooling system. 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 transferring heat from a refrigerant to an external fluid in thermal contact with the condenser. The subject condenser can have a heat transfer surface and can be designed for an external fluid, such as air, to flow across the heat transfer surface and allow the transfer of heat from heat transfer surface to the external fluid. In a specific embodiment, the flow of the external fluid is parallel to the heat transfer surface. In another specific embodiment, the heat transfer surface can incorporate surface enhancements which enhance the transfer of heat from the heat transfer surface to the external fluid. In another specific embodiment, an outer layer can be positioned above the heat transfer surface to create a volume between the heat transfer surface and the outer layer through which the external fluid can flow. |
115 |
Two-stage screw compressor |
US10675315 |
2003-09-30 |
US06991440B2 |
2006-01-31 |
Carsten Achtelik; Dieter Hüttermann |
A two-stage screw compressor has two compressor stages whose rotor housings are arranged with their axes parallel to one another and are enclosed by a common coolant housing at a distance. A coolant inlet and a coolant outlet are located at the common coolant housing, as well as guide walls such that the coolant flowing through the coolant housing flows around and cools the rotor housings of the two compressor stages one after the other in an S-shaped flow path. |
116 |
Tempering method for a screw-type vacuum pump |
US10495834 |
2002-10-30 |
US20050019169A1 |
2005-01-27 |
Hartmut Kriehn; Klaus Rofall; Manfred Behling |
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 vacuum pump (1), preferably to maintain a substantially constant pump gap (4). |
117 |
Vacuum pump |
US10490870 |
2004-03-26 |
US20040258551A1 |
2004-12-23 |
Masashi
Yoshimura |
An object of this invention is to prevent drop of life of a bearing by an axial force when using a pump as a compressor. In a vacuum pump 1 compressing and discharging gas in a direction of a rotor axis by rotation of screw rotors 3, 4 engaged together which are supported rotatably in a casing 2, balance pistons 13, 14 are disposed on shafts 6, 7 of said screw rotors at inlet side of said casing. The balance pistons separate a receiving section 17 at area of the screw rotor and a pressurizing section 16 at area of the balance piston, and a thrust force of the screw rotors at a pressurizing condition is canceled by acting the discharge pressure in the pressurizing section. The pump is used as a compressor when the discharge pressure is acted on the balance pistons 13, 14. When the pump is used as a vacuum pump, air at discharge side is sucked as cool air through a cooler toward a place near to the discharge side of the receiving section 17 at area of the screw rotor. |
118 |
Temperature control system for compressor exhaust |
US10824551 |
2004-04-13 |
US20040217180A1 |
2004-11-04 |
Ming-Te
Lu |
A temperature control system for compressor exhaust includes a data sampling unit, an exhaust sensor, a control unit, and a temperature adjusting unit. The data sampling unit obtains temperature and-humidity values of an environment of the compressor. The exhaust sensor senses exhaust temperature. The control unit is coupled to the data sampling unit and the exhaust sensor, generates a reference temperature value from the temperature and humidity values received from the data sampling unit, and further generates a control signal from the reference temperature value and the exhaust temperature received from the exhaust sensor. The temperature adjusting unit is coupled to the control unit, and is operable so as to adjust the exhaust temperature in response to the control signal received from the control unit. |
119 |
Foot plate for hermetic shell |
US09496486 |
2000-02-02 |
US06761541B1 |
2004-07-13 |
Harry Clendenin |
A foot plate for mounting a compressor includes a mounting plate, a pair of upwardly extending flanges, a pair of downwardly extending flanges and an upwardly extending mounting flange. The mounting flange is utilized to secure a compressor by being attached to the shell of the compressor. When tandem compressor assemblies are used, the pair of upwardly extending flanges provide clearance for a pair of rails which interconnect the tandem compressors without having to modify the foot plates. In one embodiment, the foot plates are welded or brazed to the rails. In another embodiment, a set of grommets position the foot plate on the rail and the foot plate is bolted to the rail. In another embodiment, a set of grommets position and secure the foot plate to the rail. |
120 |
Method and apparatus for highly efficient compact vapor compression cooling |
US10625014 |
2003-07-22 |
US20040129018A1 |
2004-07-08 |
Daniel
P.
Rini; Louis
Chow; H.
Randolph
Anderson; Jayanta
Sankar
Kapat; Bradley
Carman; Brian
Gulliver; Jose
Mauricio
Recio |
The subject invention pertains to a method and apparatus for cooling. In a specific embodiment, the subject invention relates to a lightweight, compact, reliable, and efficient cooling system. 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 transferring heat from a refrigerant to an external fluid in thermal contact with the condenser. The subject condenser can have a heat transfer surface and can be designed for an external fluid, such as air, to flow across the heat transfer surface and allow the transfer of heat from heat transfer surface to the external fluid. In a specific embodiment, the flow of the external fluid is parallel to the heat transfer surface. In another specific embodiment, the heat transfer surface can incorporate surface enhancements which enhance the transfer of heat from the heat transfer surface to the external fluid. In another specific embodiment, an outer layer can be positioned above the heat transfer surface to create a volume between the heat transfer surface and the outer layer through which the external fluid can flow. |