| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Air Compressor of Water Injection Type | US12709275 | 2010-02-19 | US20100233004A1 | 2010-09-16 | Takehiro MATSUZAKA; Hiroshi Ohta |
| In a water injection air compressor including a compressor main body for compressing air, a water-feed line for feeding water to an actuation chamber in the compressor main body, an air release valve for releasing the compressed air from the compressor main body, and a control panel for executing an on-load operation mode in which water is fed into the actuation chamber and an air release valve is closed and a no-load operation mode in which the water is fed into the actuation chamber and the air release valve is opened, wherein the control panel further executes a dry operation mode in which the water is prevented from being fed into the actuation chamber and with the air release valve is opened. | ||||||
| 82 | OIL-FREE SCROLL COMPRESSOR | US12542863 | 2009-08-18 | US20100158733A1 | 2010-06-24 | Hirokatsu Kohsokabe; Hirotaka Kameya; Kazuaki Shinoki; Toshiaki Yabe |
| An oil-free scroll compressor prevents wraps from being broken and provides improved reliability. The oil-free scroll compressor includes an orbiting scroll member and fixed scroll members, and has compression channels into which water is injected each formed between the intake port and exhaust port provided in the fixed scroll member. The oil-free scroll compressor includes temperature sensors each of which detects temperature in the compression channel, regulating valves each of which controls ratio of the amount of the water to be injected into the respective compression channels to the total amount of the water to be injected into the compression channels, and controller which controls the opening degrees of the regulating valves such that a difference between the detected temperatures from the compression channels is small. | ||||||
| 83 | Screw Compressor with Oil Feed System | US12090646 | 2006-11-30 | US20080279708A1 | 2008-11-13 | Timothy Keene Heimonen; Kevin Peter Hughes |
| A rotary screw compressor with an oil feed system that has a plurality of oil orifice nozzles to feed oil to the compressor rotors and the compressor bearings. One of the oil orifice nozzles is generally always provided with a regulated flow of oil. At least one and preferably two on/off oil valves can be selectively opened and closed. Each of the on/off oil valves are of a different size and are selectively opened and closed to step regulate the amount of oil being fed to the compression chamber according to a predetermined compression chamber discharge temperature. | ||||||
| 84 | Water-Injected Compressor | US11844053 | 2007-08-23 | US20080089795A1 | 2008-04-17 | Fumio Takeda; Hitoshi Nishimura; Natsuki Kawabata; Masakazu Aoki |
| A water-injected compressor, which injects the water inside the separator 3 into the compressor and discharges the water along with compressed air into the separator and then gains condensed and separated water, has the compressor stopping and then, if staying at a stop for a predetermined duration of time without activating, becoming activated and operating for a set duration of time. | ||||||
| 85 | Cleaning method of a rotary piston vacuum pump | US10573682 | 2004-09-20 | US20070172361A1 | 2007-07-26 | David Manson; Kristian Laskey |
| A method for managing deposits within a pump mechanism (81) is provided. Fluid suitable for dissolving, diluting or otherwise disengaging deposits which have accumulated on the internal working surfaces of the pump is brought into contact with the mechanism. The performance of the pump is monitored and this data is used together with process data received from, or associated with, a tool (83) being evacuated by the pump to calculate (80) fluid flow characteristics which are required to compensate for the accumulation of deposits on the internal working surfaces of the pump. Fluid is then introduced (2, 84) into the pumping mechanism in accordance with the calculated characteristics. | ||||||
| 86 | Refrigerating apparatus | US10122295 | 2002-04-16 | US06948336B2 | 2005-09-27 | Makoto Fujita; Yoshikazu Amo |
| A liquid injection type scroll compressor is used to a refrigerating apparatus using hydrocarbon fluoride refrigerant which does not contain chlorine (HFC-125/HFC-143a/HFC-134a) as an operating fluid and an amount of an injected liquid is controlled according to a discharge temperature of the compressor. Further, ester oil and/or ether oil is used as refrigerator oil and a dryer is disposed in a refrigerating cycle. With this arrangement, a refrigerating cycle operation can be stably realized in a wide range without almost changing the arrangement of a conventional refrigerating apparatus. | ||||||
| 87 | Capacity modulation for plural compressors | US09842349 | 2001-04-25 | US06672846B2 | 2004-01-06 | Rajan Rajendran; John P. Sheridan; Carl H. Knapke |
| A compressor system includes a pair of compressors located in a common shell. A common drive shaft drives both compressors and the drive shaft is powered by a single motor. One or both of the compressors can be equipped with a pulse width modulated capacity control system and a vapor injection system. When one compressor is equipped with these systems, the capacity can be varied between 50% and 110%. When both compressors are equipped with these systems, the capacity can be varied between 0% and 120%. | ||||||
| 88 | Compressor with internal accumulator for use in split compressor | US10349430 | 2003-01-22 | US06637216B1 | 2003-10-28 | John Kenneth Narney, II |
| A rotary compressor having a housing with a motor and an internal accumulator located on the low pressure side and an oil sump located on the high pressure side. A sealing means positioned within the housing defines a first chamber and a second chamber. The sealing means substantially maintains the pressure differential between the chambers by segregating high pressure fluid in the second chamber from low pressure fluid in the first chamber. The fluid entering the housing is separated into a gas portion and a liquid portion, the liquid portion being directed downward toward the motor to provide cooling for the motor while the gas portion is directed to a compressor portion. The liquid portion collects about the motor above the sealing means. An orifice or aperture through the sealing means allows liquid collected above the sealing means to be reintroduced into the compressor suction inlet and metered into the refrigerant gas in a controlled fashion and resupply the sump with lubricant. | ||||||
| 89 | Scroll compressor and air conditioner | US09890882 | 2001-08-06 | US06619062B1 | 2003-09-16 | Yoshitaka Shibamoto; Kenji Matsuba; Keiji Yoshimura |
| A scroll compressor comprises an operating state detection part (27) detecting an operating state, a variable-speed motor (28), a control part (26) and an unloading mechanism (12) serving as capacity control means. The control part (26) controls operation of the unloading mechanism (12) and the rotational frequency of the motor (28) in response to the operating state detected by the operating state detection part (27). An air conditioner comprises the aforementioned scroll compressor, a condenser (23), an expansion valve (24) and an evaporator (25). | ||||||
| 90 | Scroll machine with liquid injection | US10106079 | 2002-03-26 | US06615598B1 | 2003-09-09 | Simon Y. Wang; Wayne R. Berry |
| A refrigeration circuit includes a scroll compressor, a condenser and an evaporator connected in a closed loop. A liquid injection system takes liquid refrigerant from the refrigerant circuit and injects it into a suction line leading to the compressor to cool the refrigerant in the refrigeration circuit. An electronic control unit operates a controllable valve based on a temperature reading received from a discharge gas temperature sensor. The controllable valve can be an electronic expansion valve or a solenoid valve. | ||||||
| 91 | Refrigerating device | US10278844 | 2002-10-24 | US20030056534A1 | 2003-03-27 | Hiroaki Tsuboe; Susumu Nakayama; Akira Saruta; Kazumoto Urata |
| A refrigerating device including a refrigerating cycle including a plurality of compressors driven by motors, the plurality of compressors comprising a variable speed compressor which can be controlled in capacity and a constant speed compressor which is driven by a motor of which rotor core comprising a cage type conductor and permanent magnets. | ||||||
| 92 | Method and apparatus for the control of economizer circuit flow for optimum performance | US09969330 | 2001-10-03 | US06474087B1 | 2002-11-05 | Alexander Lifson |
| The economizer flow to the intermediate compression chamber inside a compressor is controlled via a variable restriction. The size of the restriction is selected to optimize unit performance in relation to operating conditions. | ||||||
| 93 | Air-conditioner, outdoor unit and refrigeration unit | US09925540 | 2001-08-10 | US06408645B1 | 2002-06-25 | Hiroaki Tsuboe; Susumu Nakayama; Akira Saruta; Kazumoto Urata |
| An air-conditioner, an outdoor unit and an refrigeration device each using a refrigeration cycle which can reduce power consumption so as to be highly efficient, which can be operated by a commercially available power source, and which is highly reliable. An air-conditioner comprises a motor and a refrigeration cycle including a compressor driven by the motor, an outdoor heat-exchanger and an indoor heat-exchanger, the motor being located in a motor chamber within a closed container, and refrigerant gas in the refrigeration cycle flows through the motor chamber, wherein the motor has a core of a rotor in which a cage type conductor and permanent magnets magnetized in bipolar state are embedded, and said motor is driven by a commercially available electric power source. | ||||||
| 94 | Screw compressor | US09749403 | 2000-12-28 | US20010036417A1 | 2001-11-01 | Yasuhiro Hioki; Shigekazu Nozawa |
| To prevent a decrease in capacity of a compressor, and to decrease the quantity of oil contained in discharged gas, and to decrease the quantity of oil discharged to an outside of the compressor. In a screw compressor in which a screw rotor is supported by a low-pressure side bearing and a high-pressure side bearing in a rotor casing and the screw rotor and a driving motor are connected to each other by a coupling, and a drain oil passage is provided to return oil having lubricated the high-pressure side bearing to a low-pressure gas suction side through a through hole formed in a center of the screw rotor, a throttle mechanism is provided in the drain oil passage to inject the oil. | ||||||
| 95 | Air-conditioner, outdoor unit and refrigeration unit | US09552585 | 2000-04-19 | US06305187B1 | 2001-10-23 | Hiroaki Tsuboe; Susumu Nakayama; Akira Saruta; Kazumoto Urata |
| An air-conditioner, an outdoor unit and an refrigeration device each using a refrigeration cycle which can reduce power consumption so as to be highly efficient, which can be operated by a commercially available power source, and which is highly reliable. An air-conditioner comprises a motor and a refrigeration cycle including a compressor driven by the motor, an outdoor heat-exchanger and an indoor heat-exchanger, the motor being located in a motor chamber within a closed container, and refrigerant gas in the refrigeration cycle flows through the motor chamber, wherein the motor has a core of a rotor in which a cage type conductor and permanent magnets magnetized in bipolar state are embedded, and said motor is driven by a commercially available electric power source. | ||||||
| 96 | Digital control valve for refrigeration system | US09592965 | 2000-06-13 | US06295821B1 | 2001-10-02 | Mark P. Madigan |
| The present invention provides a method and system for controlling and limiting the discharge temperature of a compressor of a refrigeration system. The invention is suitable for converting an existing refrigeration system which operates with one refrigerant to use with another refrigerant which can cause high discharge temperatures. The invention includes a, simple four-part system—a temperature sensor to sense the discharge temperature, an injection valve for injecting liquid refrigerant into the suction gas line of the compressor, a fluid line for providing liquid refrigerant to the valve from the condenser and a digital controller for actuating the valve. | ||||||
| 97 | Digital control valve for refrigeration system | US09235773 | 1999-01-22 | US06185949B1 | 2001-02-13 | Mark P. Madigan |
| The present invention provides a method and system for controlling and limiting the discharge temperature of a compressor of a refrigeration system. The invention is suitable for converting an existing refrigeration system which operates with one refrigerant to use with another refrigerant which can cause high discharge temperatures. The invention includes a simple four-part system—a temperature sensor to sense the discharge temperature, an injection valve for injecting liquid refrigerant into the suction gas line of the compressor, a fluid line for providing liquid refrigerant to the valve from the condenser and a digital controller for actuating the valve. | ||||||
| 98 | Refrigerating apparatus | US831769 | 1997-04-02 | US5910161A | 1999-06-08 | Makoto Fujita; Yoshikazu Amo |
| A liquid injection type scroll compressor is used to a refrigerating apparatus using hydrocarbon fluoride refrigerant which does not contain chlorine (HFC-125/HFC-143a/HFC-134a) as an operating fluid and an amount of an injected liquid is controlled according to a discharge temperature of the compressor. Further, ester oil and/or ether oil is used as refrigerator oil and a dryer is disposed in a refrigerating cycle. With this arrangement, a refrigerating cycle operation can be stably realized in a wide range without almost changing the arrangement of a conventional refrigerating apparatus. | ||||||
| 99 | Refrigerating apparatus | US528037 | 1995-09-14 | US5685163A | 1997-11-11 | Makoto Fujita; Yoshikazu Amo |
| A liquid injection type scroll compressor is used to a refrigerating apparatus using hydrocarbon fluoride refrigerant which does not contain chlorine (HFC-125/HFC-143a/HFC-134a) as an operating fluid and an amount of an injected liquid is controlled according to a discharge temperature of the compressor. Further, ester oil is used as refrigerator oil and a dryer is disposed in a refrigerating cycle. With this arrangement, a refrigerating cycle operation can be stably realized in a wide range without almost changing the arrangement of a conventional refrigerating apparatus. | ||||||
| 100 | Rotary screw vacuum pump with pressure controlled valve for lubrication/sealing fluid | US438012 | 1989-11-20 | US4995797A | 1991-02-26 | Noboru Tsuboi |
| A screw vacuum pump which includes a pair of screw rotors meshing each other with a small gap defined therebetween. A closing valve is provided in an oil circulation line leading from an oil stripper to a rotor chamber accommodating the screw rotors. A pressure switch for detecting a suction pressure is connected to the closing valve. When the suction pressure is lower than a predetermined value (i.e., at high level of vacuum), the closing valve is opened to supply the oil into the rotor chamber. | ||||||
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