| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | Variable displacement pump and the power steering apparatus using the same | JP2009033412 | 2009-02-17 | JP5154469B2 | 2013-02-27 | 重明 山室; 真 多田; 智史 野中 |
| 42 | Vane pump apparatus and leak check system having the same | JP2010190467 | 2010-08-27 | JP2012047112A | 2012-03-08 | ITO TOMOHIRO; KOBAYASHI MITSUYUKI; SUGIHARA SHINJI |
| PROBLEM TO BE SOLVED: To provide a vane pump apparatus which can accurately determine the presence of condensed water and can detect the abnormality of a pump characteristic.SOLUTION: An ECU 100 determines whether condensed water is present or not in a pump 60 based on an electric current flowing through a motor 62 when the motor 62 is driven. When the condensed water is determined to be present in the pump 60, the ECU 100 drives the pump 60 (motor 62) for a predetermined time period. When the condensed water is determined to be absent in the pump 60, the ECU 100 stores pressure sensed by a pressure sensor 90 as first pressure P1 after the determination. The abnormality of the pump characteristic can be detected based on the value of the first pressure P1. The ECU 100 determines whether the condensed water is present or not in the pump 60 based on the electric current flowing through the motor 62 before the abnormality of the pump characteristic is detected based on the first pressure P1. Consequently, the presence of the condensed water can be accurately detected. | ||||||
| 43 | Variable displacement pump and power steering apparatus using the same | JP2009033412 | 2009-02-17 | JP2010190071A | 2010-09-02 | YAMAMURO SHIGEAKI; TADA MAKOTO; NONAKA TOMOJI |
| <P>PROBLEM TO BE SOLVED: To provide a variable displacement pump and the like capable of enhancing controllability of a discharge flow rate of a pump. <P>SOLUTION: The variable displacement pump, in which a pressure difference between the front and back of a metering orifice 60 is introduced that is constituted by a second orifice as a stationary orifice provided on a discharge passage, and a third orifice 63 as a variable orifice, includes a control valve for controlling the eccentricity of a cam ring according to the pressure difference, and a solenoid valve 50 for controlling a flowing sectional area of the third orifice 63 based on change of an electric current amount controlled depending on operating conditions of a vehicle, wherein sensitive change in the discharge flow rate in a state where the discharge flow rate of the pump is small, especially during high-speed running or the like can be suppressed, and controllability of discharge flow rate of the pump can be improved, by setting a ratio of change in specific discharge amounts (discharge amount per one revolution of pump) to change in the electric current amount to be supplied to the solenoid valve 50, such that the ratio becomes smaller in a state where a specific discharge amount is small than that in a state where the specific discharge amount is large. <P>COPYRIGHT: (C)2010,JPO&INPIT | ||||||
| 44 | Electric compressor integral with inverter | JP2008285823 | 2008-11-06 | JP2010112266A | 2010-05-20 | SAITO ATSUSHI; SHIBUYA MAKOTO; OSATO KAZUMI; KURIHARA TADASHI |
| PROBLEM TO BE SOLVED: To provide an electric compressor integral with an inverter, wherein an electrically connected section has high joint strength and high joint reliability. SOLUTION: In this electric compressor integral with the inverter, a motor driving circuit incorporated with a motor and including an inverter, is surrounded by a compressor housing. The electric compressor integral with the inverter is characterized in that a bus bar joining part electrically connected by joining mutual bus bars is arranged in the motor driving circuit, and at least one distal end of the bus bar in the bus bar joining part is divided into a plurality of joining small piece parts. COPYRIGHT: (C)2010,JPO&INPIT | ||||||
| 45 | Air supply device | JP2004017039 | 2004-01-26 | JP2005207368A | 2005-08-04 | OKADA HIROSHI |
| PROBLEM TO BE SOLVED: To provide an air supply device capable of performing air supply control according to atmospheric pressure with a simple structure. SOLUTION: In an air supply device supplying air to a device 200 which is supplied with air by operating movable members 1, 2 and delivering air, a motor 100 operating the movable members 1, 2, a consumed electric power detection device 40 detecting measured value relating to electric power consumption of the motor 100, a delivery air pressure detection means 26 detecting pressure of delivered air, and a control means 40 controlling rotation speed of the motor 100 are provided. The control means 40 calculates a reference value relating to electric power consumption required by the motor 100 at standard atmospheric pressure based on rotation speed of the motor 100 and air pressure detected by the delivery air pressure detection means 26, and controls rotation speed of the motor 100 based on the reference value and a measured value detected by an electric power consumption detection means 40. COPYRIGHT: (C)2005,JPO&NCIPI | ||||||
| 46 | Method of estimating service life of rotating machine, and manufacturing device having rotating machine | JP2002287944 | 2002-09-30 | JP2004124765A | 2004-04-22 | SAMATA SHUICHI; USHIKU YUKIHIRO; NAKAO TAKASHI; FURUHATA TAKEO |
| PROBLEM TO BE SOLVED: To provide a method of estimating a service life of a stable and accurate rotating machine having high sensitivity. SOLUTION: This method of estimating a service life of a rotating machine includes a step for determining a starting time of the abnormal condition just before the rotating machine for a monitor is stopped on the basis of a monitor time series data about a characteristic rate of the rotating machine for a monitor, which is used in a manufacturing process for a monitor, and for statistically analyzing the monitor time series data to obtain a value at the characteristic rate abnormal condition starting time as a threshold value of the determination of abnormality, a step for measuring the time series data of the characteristic rate of the motor current of the rotating machine to be diagnosed during the manufacturing process, a step for forming the diagnosis data for evaluation from the time series data, of which characteristic rate is fluctuated during the manufacturing process, and a step for determining the time when the diagnosis data for evaluation exceeds the threshold value as a service life of the rotating machine to be diagnosed. COPYRIGHT: (C)2004,JPO | ||||||
| 47 | Screw compressor | JP2002164674 | 2002-06-05 | JP2004011503A | 2004-01-15 | YOSHIMURA SEIJI; NAKAMURA HAJIME |
| <P>PROBLEM TO BE SOLVED: To provide a screw compressor achieving sufficient motor cooling and energy saving effects by making a removal heat of a fan just proportional to a generated heat of the motor. <P>SOLUTION: A hydraulic screw compressor 1A as one of examples of the screw compressor comprises a compressor body 12 storing a pair of male and female screw rotors to be driven in mutual mesh by the motor 11, a cooling fan 21 provided independently of the motor 11 for blowing air toward the motor 11, and control means for receiving a temperature signal detected by a temperature detector 22 for detecting an coil temperature of the motor 11 and controlling an increase/decrease of the rotating number of the cooling fan in accordance with the coil temperature to keep the coil temperature in an allowable range. <P>COPYRIGHT: (C)2004,JPO | ||||||
| 48 | Compressor system and cooling system | JP2002036106 | 2002-02-14 | JP2002322985A | 2002-11-08 | JAYANTH NAGARAJ; MILLET HANK E |
| PROBLEM TO BE SOLVED: To provide a diagnostic unit which detects any problem or defect of an air-conditioner or a refrigeration unit, determining whether the problem or defect lies in a compressor or in any other component. SOLUTION: There is provided the diagnostic unit 100 for monitoring a motor protector which stops a motor for driving the compressor when a predetermined scope of temperature is exceeded. The diagnosing unit includes a current detector 102 which detects the state of the motor protector, and a logical circuit 104 which diagnoses the problem by combining the state of the motor protector and a demand signal. There is further provided a light-emitting diode 112 for informing, via the frequency of blinking, where the problem lies. COPYRIGHT: (C)2003,JPO | ||||||
| 49 | METHOD AND APPARATUS FOR PRESSURE EQUALIZATION IN ROTARY COMPRESSORS | US15495061 | 2017-04-24 | US20180306196A1 | 2018-10-25 | Brandon ULLRICH; Wei WANG |
| A rotary compressor system includes a compressor housing that includes a compressor motor that draws in fluid from a suction side. The fluid is compressed within a compression chamber and discharged through a discharge side. The compression chamber is disposed between the suction side and the discharge side. An overload-protection switch is electrically coupled in series with the compressor motor and is adapted to cut power to the compressor motor responsive to an overload event. A solenoid valve is fluidly coupled between the compression chamber and a location upstream of the suction side and is electrically coupled in series with the overload-protection switch. An interruption of electrical current to the compressor motor also interrupts electrical current to the solenoid valve, which opens the solenoid valve to equalize pressure between the suction side and the discharge side. | ||||||
| 50 | System and method for compressor motor protection | US14617451 | 2015-02-09 | US09590413B2 | 2017-03-07 | Frank S. Wallis; Joseph James Rozsnaki |
| A refrigerant compressor includes an electric motor. A current sensor measures current flow to the electric motor. A switching device is configured to close and open to allow and prevent current flow to the electric motor, respectively. A maximum continuous current (MCC) device includes a stored digital value corresponding to a maximum continuous current for the electric motor. A motor protection module: communicates with the MCC device, the current sensor, and the switching device; determines a first MCC for the electric motor as a function of the stored digital value received from the MCC device; selectively sets a predetermined MCC to the first MCC; and controls the switching device based on a comparison of the current flow to the electric motor and the predetermined MCC. | ||||||
| 51 | Method for predicting a rotation fault in the rotor of a vacuum pump, and associated pumping device | US13380761 | 2010-06-24 | US09534609B2 | 2017-01-03 | Nicolas Becourt; Florent Martin; Cecile Pariset; Sylvie Galichet; Nicolas Meger |
| The invention pertains to a method for predicting a failure in the rotation of the rotor of a vacuum pump, comprising the following steps: sequences of events related to the change over time of the vacuum pump functional signals are recorded (101), a match is sought between at least one sequence of events and at least one pre-established association rule precursory pattern of a vacuum pump behavior model within the recorded sequences of events, said pre-established association rule's precursory patterns involving a failure in the rotor rotation (102), and a time prediction window is deduced during which a failure in the rotor rotation will occur in a vacuum pump (103). The invention also pertains to a pumping device comprising: a vacuum pump (7) comprising at least one rotor and one pump body, said rotor having the potential to be driven rotationally within said pump body by a motor of said pump (7), a functional signal sensor (9) of said pump (7), and a means of predicting (10) a time prediction window during which a failure in the rotor rotation will occur in the vacuum pump (7), said means for prediction (10) calculating the predictive time window based on measurements provided by said functional signal sensor (9). | ||||||
| 52 | COMPRESSOR DATA MODULE | US14255519 | 2014-04-17 | US20140229014A1 | 2014-08-14 | Hung M. PHAM; Nagaraj JAYANTH |
| A compressor is provided and may include a shell, a compression mechanism, a motor, a data module, and a compressor controller. The data module may include a data module processor and a data module memory. The compressor controller may include a controller processor and a controller memory distinct from the data module processor and the data module memory. The data module may receive sensed data, may store the sensed data in the data module memory, may determine a first diagnosis of the compressor based on the sensed data, and may communicate the sensed data and the diagnosis to the compressor controller. The compressor controller may determine a second diagnosis of the compressor based on the sensed data and may verify the first diagnosis by comparing the first diagnosis to the second diagnosis. | ||||||
| 53 | Vane pump apparatus and leak check system having the same | US13210731 | 2011-08-16 | US08800360B2 | 2014-08-12 | Tomohiro Itoh; Mitsuyuki Kobayashi; Shinji Sugihara |
| An ECU determines whether condensed water is present at a rotor and vanes based on an electric current, which flows in an electric motor that drives the rotor. When the condensed water is determined to be present, the ECU drives the motor for a predetermined time period. When the condensed water is determined to be absent, the ECU stores a pressure, which is sensed through a pressure sensor, as a first pressure. The ECU is adapted to sense an abnormality in a pump characteristic based on a value of the first pressure. | ||||||
| 54 | State of charge adjusted compressor control | US13246143 | 2011-09-27 | US08718848B2 | 2014-05-06 | David J. Pfefferl; Mark A. Matko; Marv Hamdan |
| The described systems and methods relate to employing an Electric Air Charging System (EACS) to maintain a hybrid commercial vehicle (or the like) battery within a desired range of charge. The innovation facilitates reducing battery charge when the state of charge is too high, such as by adjusting air compressor cut-in and cut-out pressure thresholds to cause the air compressor to compress air for the brake system when there is excess charge in the battery, as well as triggering a brake regeneration protocol and/or other charge regeneration protocol(s) to restore charge to the battery when the state of charge of the battery is too low. | ||||||
| 55 | Inverter-integrated electric compressor | US13128113 | 2009-11-06 | US08698364B2 | 2014-04-15 | Atsushi Saito; Makoto Shibuya; Kazumi Ohsato |
| Provided is an inverter-integrated electric compressor wherein the attachability of a coil component has been improved while reliability of a connection state at the electrical joints is ensured by simplifying a mechanism which electrically connects the coil component, such as one for removing electromagnetic noise, to a motor drive circuit. An inverter-integrated electric compressor, wherein a motor drive circuit including an inverter is surrounded by a compressor housing, is characterized in that a coil component comprising a plurality of conductor wires wound in parallel is attached to the motor drive circuit through a seat, the seat is provided with a protrusion which can be fitted into a seat affixing hole provided in a case member for housing the motor drive circuit, a plurality of terminal holes are arranged in the portion where the protrusion is provided, the plurality of conductor wires pulled out from the coil component are inserted, in a one-to-one correspondence, into the plurality of terminal holes in such a manner that the mutual interval between the wires is widened, and the end of each conductor wire is connected electrically to the motor drive circuit. | ||||||
| 56 | Variable displacement pump and power steering apparatus using the variable displacement pump | US12615572 | 2009-11-10 | US08555628B2 | 2013-10-15 | Shigeaki Yamamuro; Makoto Tada; Satoshi Nonaka |
| A variable displacement pump including a drive shaft, a cam ring eccentrically moveable with respect to an axis of the drive shaft, and a solenoid drivingly controlled on the basis of variation in electric current amount to be supplied to the solenoid which is controlled in accordance with an operating condition of a vehicle. The solenoid is configured such that a rate of change in the specific discharge amount relative to the electric current amount to be supplied to the solenoid under a condition that the specific discharge amount is smaller is reduced as compared to a rate of change in the specific discharge amount relative to the electric current amount to be supplied to the solenoid under a condition that the specific discharge amount is larger. | ||||||
| 57 | CONTROLLER OF COMPRESSOR | US13617644 | 2012-09-14 | US20130064684A1 | 2013-03-14 | Katsumi ENDOU |
| A controller of a compressor of the present invention sets a time in a timer according to a motor current detected by a motor current detector. When a time has reached the time set in the timer, the rotating speed of a DC motor is increased. Therefore, control of the rotating speed according to a load can be achieved. When it is determined that a refrigerator load is great, the compressor is operated at a higher speed quickly, while when it is determined that the refrigerator load is smaller, the compressor is operated at a lower speed, which results in energy saving. | ||||||
| 58 | METHOD FOR PREDICTING A FAILURE IN THE ROTATION OF THE ROTOR OF A VACUUM PUMP AND ASSOCIATED PUMPING DEVICE | US13380761 | 2010-06-24 | US20120209569A1 | 2012-08-16 | Nicolas Becourt; Florent Martin; Cecile Pariset; Sylvie Galichet; Nicolas Meger |
| The invention pertains to a method for predicting a failure in the rotation of the rotor of a vacuum pump, comprising the following steps: sequences of events related to the change over time of the vacuum pump functional signals are recorded (101), a match is sought between at least one sequence of events and at least one pre-established association rule precursory pattern of a vacuum pump behavior model within the recorded sequences of events, said pre-established association rule's precursory patterns involving a failure in the rotor rotation (102), and a time prediction window is deduced during which a failure in the rotor rotation will occur in a vacuum pump (103). The invention also pertains to a pumping device comprising: a vacuum pump (7) comprising at least one rotor and one pump body, said rotor having the potential to be driven rotationally within said pump body by a motor of said pump (7), a functional signal sensor (9) of said pump (7), and a means of predicting (10) a time prediction window during which a failure in the rotor rotation will occur in the vacuum pump (7), said means for prediction (10) calculating the predictive time window based on measurements provided by said functional signal sensor (9). | ||||||
| 59 | Inverter Integrated Electric Compressor | US13128130 | 2009-11-06 | US20110211980A1 | 2011-09-01 | Makoto Shibuya; Kazumi Ohsato; Kei Kurosaki |
| Provided is a low-cost compressor having excellent operation stability which enables the improvement of the stability of a control circuit by shielding electromagnetic noise and the effective prevention of the vibration of a control substrate while the design flexibility is maintained at the same high level as that of conventional ones. An inverter-integrated electric compressor in which a motor is incorporated and a high-voltage circuit for motor drive including an inverter and a control substrate provided with a low-voltage circuit for control are provided in a compressor housing is characterized in that a shield plate made of a material capable of shielding an electromagnetic noise emitted from the high-voltage circuit for motor drive toward the low-voltage circuit for control is interposed between the high-voltage circuit for motor drive and the control substrate, and the shield plate and the control substrate are fixed to each other and both are fixed at a predetermined position in the compressor housing. | ||||||
| 60 | Electric Compressor Integrating Inverter | US13128113 | 2009-11-06 | US20110206544A1 | 2011-08-25 | Atsushi Saito; Makoto Shibuya; Kazumi Ohsato |
| Provided is an inverter-integrated electric compressor wherein the attachability of a coil component has been improved while reliability of a connection state at the electrical joints is ensured by simplifying a mechanism which electrically connects the coil component, such as one for removing electromagnetic noise, to a motor drive circuit. An inverter-integrated electric compressor, wherein a motor drive circuit including an inverter is surrounded by a compressor housing, is characterized in that a coil component comprising a plurality of conductor wires wound in parallel is attached to the motor drive circuit through a seat, the seat is provided with a protrusion which can be fitted into a seat affixing hole provided in a case member for housing the motor drive circuit, a plurality of terminal holes are arranged in the portion where the protrusion is provided, the plurality of conductor wires pulled out from the coil component are inserted, in a one-to-one correspondence, into the plurality of terminal holes in such a manner that the mutual interval between the wires is widened, and the end of each conductor wire is connected electrically to the motor drive circuit. | ||||||
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