Patents by Inventor Naoya JINNAI
Naoya JINNAI 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: 10378615Abstract: A clutch that includes a friction plate; a separator plate; a clutch hub; and a piston that presses the friction plate and the separator plate, wherein the clutch hub includes a hub on which an inner peripheral portion of the friction plate or the separator plate is fitted, a tubular shaft that movably supports the piston, and an engagement oil chamber defining wall that together with the piston defines an engagement oil chamber to which an engagement oil pressure is supplied, the hub is spline-fitted on a gear of a planetary gear so as to rotate with the gear, and the tubular shaft is rotatably supported by a central shaft and is fitted by a spigot joint in the gear.Type: GrantFiled: November 30, 2015Date of Patent: August 13, 2019Assignee: AISIN AW CO., LTD.Inventors: Naoya Jinnai, Masahiro Otake, Shota Ikeda, Minoru Todo, Takuya Nakajima
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Publication number: 20190229582Abstract: A vehicle drive device is provided with a lubricating path including a first oil pump to pump up an oil stored in the casing by the first oil pump and to supply the oil to the power transmission mechanism for lubricating the power transmission mechanism, and a cooling path that is separated from the lubricating circuit and provided for the rotating electric machine, the cooling path including a second oil pump to pump up the oil stored in the casing by the second oil pump to supply the oil exclusively to the rotating electric machine for cooling the rotating electric machine, the second oil pump is an electric oil pump, and the cooling path is provided with an oil cooler cooling the oil to be supplied to the rotating electric machine.Type: ApplicationFiled: January 24, 2019Publication date: July 25, 2019Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.Inventors: Eiji ITO, Kiyonori TAKAGI, Naoya JINNAI, Takahiro KATO
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Patent number: 10352409Abstract: A brake of an automatic transmission includes: first and second recessed portions and formed in a center support; a first piston having a first pressure-receiving portion that is disposed in the first recessed portion and defines a first engagement oil chamber and having a plate-pressing portion that presses friction plates and separator plates; a second piston having a second pressure-receiving portion that is disposed in the second recessed portion and defines a second engagement oil chamber and a piston-pressing portion that presses the first piston by supply of oil pressure to the second engagement oil chamber; and a return spring that biases the first piston so that the first piston moves away from the friction plates and the separator plates.Type: GrantFiled: November 25, 2014Date of Patent: July 16, 2019Assignee: AISIN AW CO., LTD.Inventors: Naoya Jinnai, Shota Ikeda, Hiroshi Kato, Takuya Nakajima
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Publication number: 20190145312Abstract: A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space.Type: ApplicationFiled: January 11, 2019Publication date: May 16, 2019Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mikio IWASE, Daiki SUYAMA, Naoya JINNAI, Kensuke WADA, Yuji INOUE, Yukihiko IDESHIO
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Patent number: 10267218Abstract: A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space.Type: GrantFiled: September 15, 2017Date of Patent: April 23, 2019Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mikio Iwase, Daiki Suyama, Naoya Jinnai, Kensuke Wada, Yuji Inoue, Yukihiko Ideshio
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Patent number: 10221923Abstract: A multi-stage transmission that includes a case including an annular support that extends radially inward from an inner peripheral surface of the case; a first planetary gear mechanism that includes a plurality of rotating elements and to which power is transmitted from the input member; a second planetary gear mechanism that is disposed on an opposite side of the support of the case from the first planetary gear mechanism; a clutch that interconnects any one of the rotating elements of the first planetary gear mechanism with an element to be connected which is included in the second planetary gear mechanism and releases this interconnection; and a brake that connects the element to be connected to the case to hold this element stationary and releases this connection.Type: GrantFiled: March 20, 2015Date of Patent: March 5, 2019Assignee: AISIN AW CO., LTD.Inventors: Takuya Nakajima, Naoya Jinnai
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Patent number: 10208836Abstract: A brake of an automatic transmission holds a second ring gear of a second planetary gear stationary, and includes: friction plates and separator plates; and a drum member as a brake hub that is continuously coupled to the second ring gear and is rotatably supported by an inner tubular portion of a center support between the friction plates, for example, and the second planetary gear. The drum member and the second ring gear are coupled together via a spline.Type: GrantFiled: November 27, 2014Date of Patent: February 19, 2019Assignee: AISIN AW CO., LTD.Inventors: Masanori Murakami, Naoya Jinnai, Takuya Nakajima
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Patent number: 10041570Abstract: A first planetary gear and a clutch are placed between a second carrier of a second planetary gear and an output shaft in the axial direction. A transmission case has a small diameter tubular portion that rotatably supports an output shaft, an annular wall portion extended radially outward from the small diameter tubular portion, and a large diameter tubular portion extended in the axial direction from the outer periphery of the annular wall portion such that the first planetary gear and the clutch are partially surrounded. A mount is fixed to a vehicle body of a vehicle so as to at least partially overlap the small diameter tubular portion, the annular wall portion, and the large diameter tubular portion as viewed in the radial direction. A parking gear of a parking lock device is coupled to the outer periphery of the second carrier.Type: GrantFiled: November 28, 2014Date of Patent: August 7, 2018Assignee: AISIN AW CO., LTD.Inventors: Mikio Iwase, Minoru Todo, Hiroshi Yoshikawa, Naoya Jinnai, Natsuki Sada, Takuya Nakajima
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Patent number: 9878605Abstract: A power transmission system (10) for a hybrid vehicle, the power transmission system (10) includes a transmission (TM, 20), a clutch (18), a motor (MG), an engine (14), a first oil pump (44), a second oil pump (68), a first hydraulic circuit in which the first oil pump (44) is provided, and a second hydraulic circuit in which the second oil pump (68) is provided. The motor (MG) is connected to a driving wheel (26) through the transmission (TM, 20). The engine (14) is connected to the motor (MG) through the clutch (28). The first oil pump (44) supplies oil to the transmission (20). The second oil pump (68) supplies oil to the motor (MG) and the clutch (28). The second hydraulic circuit is independent from the first hydraulic circuit. Selected drawing.Type: GrantFiled: March 13, 2014Date of Patent: January 30, 2018Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.Inventors: Yuji Inoue, Yukihiko Ideshio, Yousuke Michikoshi, Daiki Suyama, Naoya Jinnai, Kensuke Wada
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Publication number: 20180003107Abstract: A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space.Type: ApplicationFiled: September 15, 2017Publication date: January 4, 2018Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mikio IWASE, Daiki SUYAMA, Naoya JINNAI, Kensuke WADA, Yuji INOUE, Yukihiko IDESHIO
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Publication number: 20170314650Abstract: A clutch that includes a friction plate; a separator plate; a clutch hub; and a piston that presses the friction plate and the separator plate, wherein the clutch hub includes a hub on which an inner peripheral portion of the friction plate or the separator plate is fitted, a tubular shaft that movably supports the piston, and an engagement oil chamber defining wall that together with the piston defines an engagement oil chamber to which an engagement oil pressure is supplied, the hub is spline-fitted on a gear of a planetary gear so as to rotate with the gear, and the tubular shaft is rotatably supported by a central shaft and is fitted by a spigot joint in the gear.Type: ApplicationFiled: November 30, 2015Publication date: November 2, 2017Applicant: AISIN AW CO., LTD.Inventors: Naoya JINNAI, Masahiro OTAKE, Shota IKEDA, Minoru TODO, Takuya NAKAJIMA
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Patent number: 9797305Abstract: A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space.Type: GrantFiled: June 27, 2014Date of Patent: October 24, 2017Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mikio Iwase, Daiki Suyama, Naoya Jinnai, Kensuke Wada, Yuji Inoue, Yukihiko Ideshio
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Patent number: 9695742Abstract: A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space.Type: GrantFiled: June 30, 2014Date of Patent: July 4, 2017Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mikio Iwase, Daiki Suyama, Naoya Jinnai, Kensuke Wada, Yuji Inoue, Yukihiko Ideshio
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Patent number: 9689472Abstract: A power transfer device that includes an automatic transmission that includes a plurality of engagement elements and a speed change gear mechanism capable of establishing a multiplicity of shift speeds by changing a power transfer path by engaging or disengaging the engagement elements; and a control device that is configured to control the automatic transmission.Type: GrantFiled: December 5, 2014Date of Patent: June 27, 2017Assignee: AISIN AW CO., LTD.Inventors: Takuyo Maeda, Naoya Jinnai, Masanori Murakami
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Patent number: 9670838Abstract: A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space.Type: GrantFiled: June 27, 2014Date of Patent: June 6, 2017Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mikio Iwase, Daiki Suyama, Naoya Jinnai, Kensuke Wada, Yuji Inoue, Yukihiko Ideshio
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Publication number: 20170074372Abstract: A multi-stage transmission that includes a case including an annular support that extends radially inward from an inner peripheral surface of the case; a first planetary gear mechanism that includes a plurality of rotating elements and to which power is transmitted from the input member; a second planetary gear mechanism that is disposed on an opposite side of the support of the case from the first planetary gear mechanism; a clutch that interconnects any one of the rotating elements of the first planetary gear mechanism with an element to be connected which is included in the second planetary gear mechanism and releases this interconnection; and a brake that connects the element to be connected to the case to hold this element stationary and releases this connection.Type: ApplicationFiled: March 20, 2015Publication date: March 16, 2017Applicant: AISIN AW CO., LTD.Inventors: Takuya NAKAJIMA, Naoya JINNAI
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Publication number: 20160298735Abstract: A power transfer device that includes an automatic transmission that includes a plurality of engagement elements and a speed change gear mechanism capable of establishing a multiplicity of shift speeds by changing a power transfer path by engaging or disengaging the engagement elements; and a control device that is configured to control the automatic transmission.Type: ApplicationFiled: December 5, 2014Publication date: October 13, 2016Applicant: AISIN AW CO., LTD.Inventors: Takuyo MAEDA, Naoya JINNAI, Masanori MURAKAMI
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Publication number: 20160273621Abstract: A brake of an automatic transmission includes: first and second recessed portions and formed in a center support; a first piston having a first pressure-receiving portion that is disposed in the first recessed portion and defines a first engagement oil chamber and having a plate-pressing portion that presses friction plates and separator plates; a second piston having a second pressure-receiving portion that is disposed in the second recessed portion and defines a second engagement oil chamber and a piston-pressing portion that presses the first piston by supply of oil pressure to the second engagement oil chamber; and a return spring that biases the first piston so that the first piston moves away from the friction plates and the separator plates.Type: ApplicationFiled: November 25, 2014Publication date: September 22, 2016Applicant: AISIN AW CO., LTD.Inventors: Naoya JINNAI, Shota IKEDA, Hiroshi KATO, Takuya NAKAJIMA
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Patent number: 9447864Abstract: A vehicle drive device having a rotating electrical machine, a speed change mechanism, and a case that accommodates the rotating electrical machine speed change mechanism. A first oil storage portion is provided so as to communicate with the speed change mechanism accommodating space. A hydraulic pump that supplies the oil in the first oil storage portion to the speed change mechanism and the rotating electrical machine. A second oil storage portion provided so as to communicate with the rotating electrical machine accommodating space. A discharge oil passage discharges the oil in the second oil storage portion to the first oil storage portion. The discharge oil passage includes a first opening that opens toward the first oil storage portion, and the first opening is provided so that its lower end is located above an oil level in the first oil storage portion during rotation of the hydraulic pump.Type: GrantFiled: October 30, 2012Date of Patent: September 20, 2016Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mikio Iwase, Daiki Suyama, Naoya Jinnai, Tatsuya Okishima, Masahiro Izuhara, Kensuke Wada, Yukihiko Ideshio, Yuji Inoue
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Publication number: 20160265630Abstract: A first planetary gear and a clutch are placed between a second carrier of a second planetary gear and an output shaft in the axial direction. A transmission case has a small diameter tubular portion that rotatably supports an output shaft, an annular wall portion extended radially outward from the small diameter tubular portion, and a large diameter tubular portion extended in the axial direction from the outer periphery of the annular wall portion such that the first planetary gear and the clutch are partially surrounded. A mount is fixed to a vehicle body of a vehicle so as to at least partially overlap the small diameter tubular portion, the annular wall portion, and the large diameter tubular portion as viewed in the radial direction. A parking gear of a parking lock device is coupled to the outer periphery of the second carrier.Type: ApplicationFiled: November 28, 2014Publication date: September 15, 2016Applicant: AISIN AW CO., LTD.Inventors: Mikio IWASE, Minoru TODO, Hiroshi YOSHIKAWA, Naoya JINNAI, Natsuki SADA, Takuya NAKAJIMA