Patents by Inventor Yoshiyuki Kanemoto

Yoshiyuki Kanemoto has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210025380
    Abstract: The purpose of the present invention is to provide a gas compressor that can achieve reduced fluctuation of discharge pressure during compressor body number control, and a method for controlling the gas compressor. This gas compressor includes a plurality of compressor units each having a compressor body, a motor for driving the compressor body, and an inverter for controlling a rotational speed of the motor, and a control device for controlling each of the inverters, in which discharge pipes of the compressor bodies are merged with one main discharge pipe and discharge pressure of the main discharge pipe is controlled through control of pressure of the respective discharge pipes by controlling, by means of the respective inverters, driving frequencies of the compressor bodies.
    Type: Application
    Filed: July 26, 2019
    Publication date: January 28, 2021
    Inventors: Norio AOYAGI, Akihiro YAMAMOTO, Yoshiyuki KANEMOTO, Hiroaki SAITO, Fuminori KATO, Daichi OKA
  • Publication number: 20200400154
    Abstract: The purpose of the present invention is to provide a gas compressor capable of reducing variation in discharge pressure through control of the number of compressor bodies and a control method for the gas compressor. In order to solve the problem, this gas compressor includes a plurality of compressor units each having a compressor body, a motor for driving the compressor body, and an inverter for controlling a rotational speed of the motor, and a control device for controlling the inverters. Discharge pipes of the compressor bodies converge on one main discharge pipe. A drive frequency of the motor of each compressor body is controlled by the corresponding inverter, whereby a pressure of each discharge pipe is controlled and a discharge pressure of the main discharge pipe is controlled.
    Type: Application
    Filed: July 26, 2019
    Publication date: December 24, 2020
    Inventors: Akihiro YAMAMOTO, Yoshiyuki KANEMOTO, Norio AOYAGI, Hiroaki SAITO, Fuminori KATO, Daichi OKA
  • Publication number: 20200309125
    Abstract: Provided is a scroll-type fluid machine that prevents wear of the parts of the fluid machine and improves the reliability thereof by reducing the amount of dust that reaches a face seal. The present invention comprises a revolving scroll that includes an end plate and a lap part provided to the end plate, and that moves in a revolving manner; a fixed scroll that includes an end plate, a lap part provided to the end plate such that a compression chamber is formed between itself and the lap part of the revolving scroll, and a flange that opposes the end plate of the revolving scroll; and a face seal that is provided between the flange of the fixed scroll and the end plate of the revolving scroll, and that seals a space between the fixed scroll and the revolving scroll, with the scroll-type fluid machine further comprising a shield part that suppresses dust from reaching the face seal from the outside in the radial direction.
    Type: Application
    Filed: July 7, 2016
    Publication date: October 1, 2020
    Inventors: Shumpei YAMAZAKI, Yoshiyuki KANEMOTO, Sho WATANABE
  • Patent number: 10563650
    Abstract: Provided is a compressor capable of calculating the correct time remaining before maintenance. The compressor is provided with: a compressor body that compresses fluid; a motor that drives the compressor body; a temperature sensor that detects the temperature of the compressor; a pressure sensor that detects the pressure of the compressed fluid outputted from the compressor body; and a calculation unit that calculates the time remaining before maintenance for the compressor body, using the temperature of the compressor and the pressure of the compressed fluid assigned with respective predetermined weights. The calculation unit changes the weighting of the temperature according to the pressure of the compressed fluid or the operation rate of the compressor body.
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: February 18, 2020
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Fuminori Kato, Yoshiyuki Kanemoto, Shumpei Yamazaki
  • Patent number: 10514026
    Abstract: An object of the present invention is to provide a fluid compression system which can supply compressed fluid in accordance with a sudden change in an amount of fluid used even when the number of compressors to be installed is increased, and a control device thereof.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: December 24, 2019
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Zhijia Ren, Hironobu Takayasu, Yoshiyuki Kanemoto
  • Publication number: 20190345935
    Abstract: An object of the present invention is to provide a scroll compressor with a simple configuration which is capable of preventing the occurrence of noise induced due to compressed air remaining in a discharge pipe flow backward and an orbiting scroll rotating reversely when stopping the compressor.
    Type: Application
    Filed: January 27, 2017
    Publication date: November 14, 2019
    Inventors: Zhijia REN, Yoshiyuki KANEMOTO
  • Publication number: 20190338773
    Abstract: An object of the present invention is to provide a rotary displacement compressor capable of determining whether a check valve has failed, and preventing the life of a compressor body from being reduced when a compression operation stops. In order to achieve the object, a rotary displacement compressor includes a compressor body that compresses a medium by reducing a volume of the medium using rotation; a discharge pipe through which a compressed medium, which is discharged through a discharge port of the compressor body, flows; a check valve that shuts off the compressed medium flowing backward to the compressor body; and a backflow control valve that allows a predetermined rate of the compressed medium to flow backward. The check valve and the backflow control valve are disposed in series via the discharge pipe.
    Type: Application
    Filed: January 31, 2017
    Publication date: November 7, 2019
    Inventors: Fuminori KATO, Yoshiyuki KANEMOTO, Hiroaki SAITO, Akihiro YAMAMOTO
  • Publication number: 20190334407
    Abstract: Provided is a scroll compressor capable of reducing a shaft voltage and achieving space savings for the entire apparatus.
    Type: Application
    Filed: January 19, 2018
    Publication date: October 31, 2019
    Inventors: Fuminori KATO, Yoshiyuki KANEMOTO
  • Publication number: 20190334408
    Abstract: Provided are: a motor for which high strength can be obtained in a motor casing; and a compressor that uses the motor. This motor 10 has: a rotating shaft 12 provided in a rotatable manner; a rotor 32 that rotates integrally with the rotating shaft 12; a stator 31 that rotationally drives the rotor 32; and a motor casing 14 that is a cylindrical body for accommodating the rotor 32 and the stator 31, and has, on the outer circumferential surface thereof, ribs 22 extending in a circumferential direction.
    Type: Application
    Filed: January 25, 2017
    Publication date: October 31, 2019
    Inventors: Fuminori KATO, Yoshiyuki KANEMOTO
  • Patent number: 10415389
    Abstract: The purpose of the present invention is to provide a scroll fluid machine, the reliability of which is ensured and which can be manufactured with high productivity. The present invention provides a scroll fluid machine comprising: a stationary scroll having a spiral wrap upstanding therefrom; an orbiting scroll provided facing the stationary scroll and orbiting; a casing provided outside the orbiting scroll; a drive shaft for causing the orbiting scroll to orbit; an orbiting bearing for transmitting the rotational movement of the drive shaft to the orbiting scroll; and a plurality of rotation prevention mechanisms for preventing the orbiting scroll from rotating. The scroll fluid machine is characterized in that: the rotation prevention mechanisms have crankshafts and also have crank bearings for supporting the crankshafts; and the gap between each of the crankshafts and the corresponding one of the crank bearings is set to be greater than the gap between the drive shaft and the orbiting bearing.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: September 17, 2019
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Shumpei Yamazaki, Yoshiyuki Kanemoto, Fuminori Kato
  • Publication number: 20190101115
    Abstract: The objective of the present invention is to provide a scroll-type fluid machine, and a method for assembling this scroll-type fluid machine, with which an eccentric shaft and a non-eccentric part can be positioned easily in the same step, while allowing a main body unit and a motor unit to be separated and connected without being disassembled.
    Type: Application
    Filed: July 29, 2016
    Publication date: April 4, 2019
    Inventors: Shumpei YAMAZAKI, Yoshiyuki KANEMOTO, Fuminori KATO, Takanori EMI
  • Publication number: 20180355722
    Abstract: The purpose of the present invention is to provide a scroll fluid machine configured so that, during maintenance, grease can be easily supplied to a bearing regardless of an installation environment, thereby improving work efficiency. The present invention provides a scroll fluid machine characterized by comprising: a stationary scroll obtained by forming a wrap section on an end plate; an orbiting scroll obtained by forming a wrap section on an end plate such that the wrap section faces the wrap section of the stationary scroll; a drive shaft for driving the orbiting scroll; an orbiting bearing for supporting the drive shaft relative to the orbiting scroll; and a plurality of pouring openings for pouring a lubricant into the orbiting bearing from the outside.
    Type: Application
    Filed: May 10, 2016
    Publication date: December 13, 2018
    Inventors: Sho WATANABE, Yoshio KOBAYASHI, Yoshiyuki KANEMOTO
  • Publication number: 20180328358
    Abstract: The purpose of the present invention is to provide a scroll-type fluid machine for which maintenance can easily be performed in necessary locations, and a maintenance method for said fluid machine.
    Type: Application
    Filed: August 26, 2016
    Publication date: November 15, 2018
    Applicant: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Fuminori KATO, Shumpei YAMAZAKI, Yoshiyuki KANEMOTO, Takanori EMI
  • Publication number: 20180223832
    Abstract: The purpose of the present invention is to provide an air compressing apparatus capable of establishing a sufficient air-filling rate while reducing noise at the initiation of operations.
    Type: Application
    Filed: December 17, 2014
    Publication date: August 9, 2018
    Inventors: Zhijia REN, Yoshiyuki KANEMOTO
  • Publication number: 20170298926
    Abstract: Provided is a compressor capable of calculating the correct time remaining before maintenance. The compressor is provided with: a compressor body that compresses fluid; a motor that drives the compressor body; a temperature sensor that detects the temperature of the compressor; a pressure sensor that detects the pressure of the compressed fluid outputted from the compressor body; and a calculation unit that calculates the time remaining before maintenance for the compressor body, using the temperature of the compressor and the pressure of the compressed fluid assigned with respective predetermined weights. The calculation unit changes the weighting of the temperature according to the pressure of the compressed fluid or the operation rate of the compressor body.
    Type: Application
    Filed: November 27, 2014
    Publication date: October 19, 2017
    Inventors: Fuminori KATO, Yoshiyuki KANEMOTO, Shumpei YAMAZAKI
  • Publication number: 20170234130
    Abstract: The purpose of the present invention is to provide a scroll fluid machine, the reliability of which is ensured and which can be manufactured with high productivity. The present invention provides a scroll fluid machine comprising: a stationary scroll having a spiral wrap upstanding therefrom; an orbiting scroll provided facing the stationary scroll and orbiting; a casing provided outside the orbiting scroll; a drive shaft for causing the orbiting scroll to orbit; an orbiting bearing for transmitting the rotational movement of the drive shaft to the orbiting scroll; and a plurality of rotation prevention mechanisms for preventing the orbiting scroll from rotating. The scroll fluid machine is characterized in that: the rotation prevention mechanisms have crankshafts and also have crank bearings for supporting the crankshafts; and the gap between each of the crankshafts and the corresponding one of the crank bearings is set to be greater than the gap between the drive shaft and the orbiting bearing.
    Type: Application
    Filed: September 10, 2014
    Publication date: August 17, 2017
    Inventors: Shumpei YAMAZAKI, Yoshiyuki KANEMOTO, Fuminori KATO
  • Patent number: 9551341
    Abstract: A scroll type fluid machine, for improving a dimensional accuracy with easy working, includes a fixed scroll, an orbiting scroll arranged so as to oppose to the fixed scroll and executing an orbiting motion, a driving shaft driving the orbiting scroll, an eccentric shaft decentered from the driving shaft and connected to the orbiting scroll, and an eccentric bush connecting the driving shaft and the eccentric shaft to each other, in which the eccentric bush includes a main hole into which the driving shaft is fitted and an eccentric hole into which the eccentric shaft is fitted, and the eccentric hole is decentered with respect to the main hole.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: January 24, 2017
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Yoshiyuki Kanemoto, Atsushi Kanaizumi
  • Patent number: 9279423
    Abstract: A plurality of notches or holes is formed on a motor housing or compressor casing. This permits assembling of the auxiliary crankshaft to the auxiliary crank bearing even after the motor housing and the compressor casing are fastened together. Hence, the assembly can be performed in sequential steps.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: March 8, 2016
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Shumpei Yamazaki, Yoshiyuki Kanemoto
  • Publication number: 20150370265
    Abstract: An object of the present invention is to provide a fluid compression system which can supply compressed fluid in accordance with a sudden change in an amount of fluid used even when the number of compressors to be installed is increased, and a control device thereof.
    Type: Application
    Filed: February 8, 2013
    Publication date: December 24, 2015
    Applicant: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Zhijia REN, Hironobu TAKAYASU, Yoshiyuki KANEMOTO
  • Patent number: 9188125
    Abstract: In a scroll air compressor as a scroll fluid machine capable of being downsized with an increased cooling effect, cooling air entering through a fixed inlet of a fixed cooling passage provided at the rear of a fixed scroll, and an orbiting inlet of an orbiting cooling passage provided at the rear of an orbiting scroll, is allowed to flow out of an fixed outlet and an orbiting outlet, respectively. Thereafter, the cooling air is guided to an outer periphery of the other end of the casing through a side duct and a guide duct, and then sucked into an inner peripheral side of a centrifugal fan to be discharged outwardly from an exhaust port provided in a fan cover.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: November 17, 2015
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Atsushi Kanaizumi, Toshitsugu Suzuki, Kazutaka Suefuji, Yoshiyuki Kanemoto