Patents by Inventor Masao Tani
Masao Tani 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).
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Patent number: 9011121Abstract: A device that enhances compressor efficiency by reducing pressure losses in a discharge muffler space into which is discharged a refrigerant compressed by a compression unit. A low-stage discharge muffler space is formed in the shape of a ring around a drive shaft. In the low-stage discharge muffler space, a communication port flow guide is provided so as to cover a predetermined area of an opening of a communication port from a side of a flow path in a reverse direction out of two flow paths in different directions around the drive shaft from a discharge port through which is discharged the refrigerant compressed by a low-stage compression unit to the communication port through which the refrigerant flows out. The communication port flow guide transforms a direction of a flow into a direction of a connecting flow path.Type: GrantFiled: May 24, 2010Date of Patent: April 21, 2015Assignee: Mitsubishi Electric CorporationInventors: Tetsuhide Yokoyama, Raito Kawamura, Kei Sasaki, Shin Sekiya, Taro Kato, Masao Tani, Atsuyoshi Fukaya, Takeshi Fushiki
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Patent number: 8790097Abstract: A refrigerant compressor that enhances compressor efficiency by both reducing an amplitude of pressure pulsations and reducing pressure losses in a discharge muffler space into which is discharged a refrigerant compressed at a compression unit. A low-stage discharge muffler space is formed in the shape of a ring around a drive shaft. In the low-stage discharge muffler space, a discharge port rear guide is provided in the proximity of a discharge port through which is discharged the refrigerant compressed by a low-stage compression unit. The discharge port rear guide is provided at a flow path in one direction out of two flow paths from the discharge port to a communication port in different directions around the drive shaft, and prevents the refrigerant from flowing in that direction, thereby causing the refrigerant to circulate in a forward direction in the ring-shaped discharge muffler space.Type: GrantFiled: May 24, 2010Date of Patent: July 29, 2014Assignee: Mitsubishi Electric CorporationInventors: Tetsuhide Yokoyama, Toshihide Koda, Shin Sekiya, Kei Sasaki, Raito Kawamura, Taro Kato, Atsuyoshi Fukaya, Takeshi Fushiki, Hideaki Maeyama, Masao Tani
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Publication number: 20120085119Abstract: A device that enhances compressor efficiency by reducing pressure losses in a discharge muffler space into which is discharged a refrigerant compressed by a compression unit. A low-stage discharge muffler space is formed in the shape of a ring around a drive shaft. In the low-stage discharge muffler space, a communication port flow guide is provided so as to cover a predetermined area of an opening of a communication port from a side of a flow path in a reverse direction out of two flow paths in different directions around the drive shaft from a discharge port through which is discharged the refrigerant compressed by a low-stage compression unit to the communication port through which the refrigerant flows out. The communication port flow guide transforms a direction of a flow into a direction of a connecting flow path.Type: ApplicationFiled: May 24, 2010Publication date: April 12, 2012Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Tetsuhide Yokoyama, Raito Kawamura, Kei Sasaki, Shin Sekiya, Taro Kato, Masao Tani, Atsuyoshi Fukaya, Takeshi Fushiki
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Publication number: 20120085118Abstract: A refrigerant compressor that enhances compressor efficiency by both reducing an amplitude of pressure pulsations and reducing pressure losses in a discharge muffler space into which is discharged a refrigerant compressed at a compression unit. A low-stage discharge muffler space is formed in the shape of a ring around a drive shaft. In the low-stage discharge muffler space, a discharge port rear guide is provided in the proximity of a discharge port through which is discharged the refrigerant compressed by a low-stage compression unit. The discharge port rear guide is provided at a flow path in one direction out of two flow paths from the discharge port to a communication port in different directions around the drive shaft, and prevents the refrigerant from flowing in that direction, thereby causing the refrigerant to circulate in a forward direction in the ring-shaped discharge muffler space.Type: ApplicationFiled: May 24, 2010Publication date: April 12, 2012Applicant: Mitsubishi Electric CorporationInventors: Tetsuhide Yokoyama, Toshihide Koda, Shin Sekiya, Kei Sasaki, Raito Kawamura, Taro Kato, Atsuyoshi Fukaya, Takeshi Fushiki, Hideaki Maeyama, Masao Tani
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Publication number: 20080292458Abstract: A fan shroud structure includes a heat exchanger and a fan shroud. The heat exchanger has an upper tank and a lower tank, and the upper tank and the lower tank sandwich a core part therebetween. The fan shroud is attached to the heat exchanger, and the fan shroud has a wall portion and a flange portion projecting toward the heat exchanger from an outer circumference of the wall portion, and the flange portion including a lower flange portion. The lower flange portion is provided with a water discharge outlet for discharging water in the fan shroud outside of the fan shroud through the water discharge outlet.Type: ApplicationFiled: May 13, 2008Publication date: November 27, 2008Inventors: Masao TANI, Masakazu Takizawa
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Patent number: 6746215Abstract: A compressor includes a compression mechanism part for compressing refrigerant sucked from an outside of the hermetic container and discharging compressed refrigerant to a discharge space, an electric motor part composed of a stator and a rotor, facing a first space which is at an opposite side of the discharge space with respect to the compression mechanism part in the hermetic container, for driving the compression mechanism part through a main shaft, a passage at an external circumferential side of the compression mechanism part, for connecting the discharge space with the first space, and a fan provided at an end of the rotor, facing the first space. The refrigerant discharged into the discharge space passes through the passage at the external circumferential side of the compression mechanism part to reach the first space, and passes the fan to be discharged to the outside of the hermetic container.Type: GrantFiled: June 26, 2002Date of Patent: June 8, 2004Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Masao Tani, Fumiaki Sano, Kiyoharu Ikeda, Minoru Ishii, Takeshi Fushiki, Yoshihide Ogawa, Teruhiko Nishiki, Takashi Sebata, Shin Sekiya
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Patent number: 6582210Abstract: According to a scroll compressor of the present invention, at least one of a diameter space between an upper fitting surface of the guide frame and an upper fitting surface of the compliant frame at an upper fitting part where the upper fitting surface of the guide frame contacts with the upper fitting surface of the compliant frame, and a diameter space between a lower fitting surface of the guide frame and a lower fitting surface of the compliant frame at a lower fitting part where the lower fitting surface of the guide frame contacts with the lower fitting surface of the compliant frame is set to be equal to or shorter than a diameter space between the rotor and the stator.Type: GrantFiled: June 26, 2002Date of Patent: June 24, 2003Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Fumiaki Sano, Shin Sekiya, Kiyoharu Ikeda, Takeshi Fushiki, Yoshihide Ogawa, Teruhiko Nishiki, Takashi Sebata, Masao Tani
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Publication number: 20030086798Abstract: A compressor includes a compression mechanism part for compressing refrigerant sucked from an outside of the hermetic container and discharging compressed refrigerant to a discharge space, an electric motor part composed of a stator and a rotor, facing a first space which is at an opposite side of the discharge space with respect to the compression mechanism part in the hermetic container, for driving the compression mechanism part through a main shaft, a passage at an external circumferential side of the compression mechanism part, for connecting the discharge space with the first space, and a fan provided at an end of the rotor, facing the first space. The refrigerant discharged into the discharge space passes through the passage at the external circumferential side of the compression mechanism part to reach the first space, and passes the fan to be discharged to the outside of the hermetic container.Type: ApplicationFiled: June 26, 2002Publication date: May 8, 2003Applicant: MITSUBISHI DENKI KABUSHIKI KAISAInventors: Masao Tani, Fumiaki Sano, Kiyoharu Ikeda, Minoru Ishii, Takeshi Fushiki, Yoshihide Ogawa, Teruhiko Nishiki, Takashi Sebata, Shin Sekiya
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Publication number: 20030082064Abstract: According to a scroll compressor of the present invention, at least one of a diameter space between an upper fitting surface of the guide frame and an upper fitting surface of the compliant frame at an upper fitting part where the upper fitting surface of the guide frame contacts with the upper fitting surface of the compliant frame, and a diameter space between a lower fitting surface of the guide frame and a lower fitting surface of the compliant frame at a lower fitting part where the lower fitting surface of the guide frame contacts with the lower fitting surface of the compliant frame is set to be equal to or shorter than a diameter space between the rotor and the stator.Type: ApplicationFiled: June 26, 2002Publication date: May 1, 2003Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Fumiaki Sano, Shin Sekiya, Kiyoharu Ikeda, Takeshi Fushiki, Yoshihide Ogawa, Teruhiko Nishiki, Takashi Sebata, Masao Tani
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Patent number: 6210130Abstract: A rotary compressor having a piston provided integrally with a blade is contained in a hermetic vessel which is operated at a suction pressure of the rotary compressor and not to discharge pressure. The rotary compressor includes a compression mechanism portion having a cylinder which includes a suction port formed in a cylinder chamber, a piston which eccentrically revolves in the cylinder, a blade which is integrally formed with the piston and partitions the cylinder chamber into a high pressure chamber and a low pressure chamber, and a driving shaft for revolving the piston.Type: GrantFiled: August 5, 1999Date of Patent: April 3, 2001Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Masayuki Kakuda, Eiji Watanabe, Yoshihide Ogawa, Minoru Ishii, Masao Tani, Munehisa Gunjima, Takashi Yamamoto, Susumu Kawaguchi