Patents by Inventor Hidenori Arisawa
Hidenori Arisawa 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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Publication number: 20230042648Abstract: A transmission structure of a helicopter according to one aspect is a transmission structure that transmits power from a prime mover to a rotary wing in the helicopter. The transmission structure includes: a housing; an input shaft that transmits the power of the prime mover to a gear arranged in the housing; a bearing supporting the input shaft in the housing such that the input shaft is rotatable, the bearing including an annular inner ring that holds the input shaft, an annular outer ring that is arranged outside the inner ring in a radial direction and fixed to the housing, and rolling elements sandwiched between the inner ring and the outer ring; and a sleeve that is sandwiched between an inner peripheral surface of the inner ring and the input shaft and is lower in heat conductivity than the inner ring and the input shaft.Type: ApplicationFiled: December 18, 2020Publication date: February 9, 2023Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Kenta OGASAWARA, Akira HAYASAKA, Hiroki YAMAMOTO, Hidenori ARISAWA, Yuji SHINODA, Mitsuaki TANAKA, Hironori HASHIMOTO
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Publication number: 20230027400Abstract: A toroidal continuously variable transmission including a power roller; a support supporting the power roller rotatably; a thrust bearing receiving a load of the power roller in a direction along a rotating axis; and an oil passage supplying lubricating oil to the thrust bearing. A surface of the power roller opposing the support includes a first bearing grooved and the support opposing the power roller includes a second bearing groove. A virtual axis of a discharge port in the oil passage reaches a bearing groove that is one of the first bearing groove and the second bearing groove. Viewed from a direction perpendicular to the rotation axis, a portion of a retainer located at a radially inner side of a retaining hole of the retainer and a portion located at a radially inner side of the bearing groove are located at sides opposite to each other across the virtual axis.Type: ApplicationFiled: December 18, 2020Publication date: January 26, 2023Applicant: KAWASAKI JUKOGYO KABUSHIK KAISHAInventors: Kenji KOMATSU, Hideyuki IMAI, Hidenori ARISAWA, Yuji SHINODA, Mitsuaki TANAKA, Yoshiyuki NOGUCHI
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Patent number: 11536161Abstract: A gas turbine engine including: an exhaust diffuser including an inner tube and an outer tube that form therebetween an annular exhaust passage; a bearing chamber formed radially inside the inner tube for accommodating a bearing that supports a rotor of a turbine; a plurality of hollow struts extending across the exhaust passage; an oil introduction passage extending through one of the struts for introducing oil to be supplied to the bearing chamber; an oil drain passage extending through one of the struts for draining the oil from an exhaust oil inlet opened on a bottom surface of the bearing chamber; and an oil discharge passage for discharging a portion of the oil having passed through the oil introduction passage toward the oil drain inlet.Type: GrantFiled: December 16, 2019Date of Patent: December 27, 2022Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Takuya Ikeguchi, Koji Terauchi, Mitsuaki Tanaka, Hidenori Arisawa, Yuji Shinoda, Yoshiyuki Noguchi
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Publication number: 20220324581Abstract: A transmission cooling assembly of a helicopter includes: a transmission including a speed change structure that changes the speed of rotation produced by rotational power input from a prime mover and outputs the resulting rotational power and a housing accommodating the speed change structure; a cowl covering at least a part of an outer surface of the housing, with a gap defined between the cowl and the outer surface; and a flow structure that allows external air to flow through the gap.Type: ApplicationFiled: June 24, 2022Publication date: October 13, 2022Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Kenta OGASAWARA, Akira Hayasaka, Hiroki Yamamoto, Hidenori Arisawa, Yuji Shinoda, Mitsuaki Tanaka, Hironori Hashimoto
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Publication number: 20220315211Abstract: A transmission lubricating assembly of a helicopter includes: a transmission including a speed change structure that changes the speed of rotation produced by rotational power input from a prime mover and outputs the resulting rotational power and a housing accommodating the speed change structure; and a lubricator that lubricates the speed change structure. The lubricator includes a collector that collects a mist of a lubricating oil in an internal space of the housing and a dropper that is disposed below the collector and that applies droplets of the lubricating oil to the speed change structure, the droplets resulting from the collected mist being gathered under its own weight.Type: ApplicationFiled: June 24, 2022Publication date: October 6, 2022Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Kenta OGASAWARA, Akira HAYASAKA, Hiroki YAMAMOTO, Hidenori ARISAWA, Yuji SHINODA, Mitsuaki TANAKA, Hironori HASHIMOTO
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Patent number: 10808625Abstract: A gear cooling structure includes: a gear including a plurality of teeth extending in a particular direction; and a nozzle that jets out oil toward a toothed surface of the gear. The nozzle extends in the particular direction, and has a width that is narrower than a gap between tips of the plurality of teeth.Type: GrantFiled: July 27, 2016Date of Patent: October 20, 2020Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Mamoru Yoshitomi, Hirofumi Akahori, Hidenori Arisawa, Yuji Shinoda, Seiji Yamashita
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Publication number: 20200141281Abstract: A gas turbine engine including: an exhaust diffuser including an inner tube and an outer tube that form therebetween an annular exhaust passage; a bearing chamber formed radially inside the inner tube for accommodating a bearing that supports a rotor of a turbine; a plurality of hollow struts extending across the exhaust passage; an oil introduction passage extending through one of the struts for introducing oil to be supplied to the bearing chamber; an oil drain passage extending through one of the struts for draining the oil from an exhaust oil inlet opened on a bottom surface of the bearing chamber; and an oil discharge passage for discharging a portion of the oil having passed through the oil introduction passage toward the oil drain inlet.Type: ApplicationFiled: December 16, 2019Publication date: May 7, 2020Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Takuya IKEGUCHI, Koji Terauchi, Mitsuaki Tanaka, Hidenori Arisawa, Yuji Shinoda, Yoshiyuki Noguchi
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Patent number: 10605165Abstract: An aircraft engine apparatus (1) includes: a rotating shaft (6); a fan (10) driven by the rotating shaft; a fan case surrounding the fan from outside in a radial direction of the rotating shaft; a nose cone (13) disposed upstream of the fan; a casing (2) that accommodates at least part of the rotating shaft and supports the fan case; a first motive force transmitter (9) that transmits motive force of the rotating shaft to the fan; and a support member (12) disposed inward of the first motive force transmitter in the radial direction, the support member coupling the nose cone to the casing such that the support member supports the nose cone in a stationary state.Type: GrantFiled: November 4, 2015Date of Patent: March 31, 2020Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Akihito Abe, Tatsuhiko Goi, Masahide Kazari, Hidenori Arisawa
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Publication number: 20200080494Abstract: A gear cooling structure includes: a gear including a plurality of teeth extending in a particular direction; and a nozzle that jets out oil toward a toothed surface of the gear. The nozzle extends in the particular direction, and has a width that is narrower than a gap between tips of the plurality of teeth.Type: ApplicationFiled: July 27, 2016Publication date: March 12, 2020Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Mamoru YOSHITOMI, Hirofumi AKAHORI, Hidenori ARISAWA, Yuji SHINODA, Seiji YAMASHITA
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Patent number: 10570999Abstract: In a continuously variable transmission including: a first transmission unit including a first input disc and a first output disc; and a second transmission unit disposed such that a back surface of a second input disc is opposed to a back surface of the first input disc, an input gear shroud covering an input gear disposed between the back surfaces of the first and second input discs, a first input disc side surface shroud integrally provided to a first input disc support supporting the first input disc on a housing of the continuously variable transmission, and a second input disc side surface shroud integrally provided to a second input disc support supporting the second input disc on the housing of the continuously variable transmission, are provided.Type: GrantFiled: October 11, 2016Date of Patent: February 25, 2020Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Kenichiro Tanaka, Hideyuki Imai, Hidenori Arisawa, Masahide Kazari
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Patent number: 10415690Abstract: A toroidal-type stepless transmission includes: at least a pair of an input disc and an output disc; a power roller tiltably provided between the pair of the input disc and the output disc, the power roller being configured to transmit a driving force from the input disc to the output disc; and disc shrouds covering the input disc and the output disc, respectively. Each of the disc shrouds has an outer peripheral portion formed with an oil discharge groove configured to discharge an oil within each disc shroud to the outside, the oil discharge groove penetrating from an inner surface of the disc shroud to an outer surface of the disc shroud and extending in a circumferential direction of the disc shroud.Type: GrantFiled: December 18, 2015Date of Patent: September 17, 2019Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Kenichiro Tanaka, Hideyuki Imai, Tatsuhiko Goi, Hidenori Arisawa, Masahide Kazari
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Publication number: 20170362999Abstract: An aircraft engine apparatus (1) includes: a rotating shaft (6); a fan (10) driven by the rotating shaft; a fan case surrounding the fan from outside in a radial direction of the rotating shaft; a nose cone (13) disposed upstream of the fan; a casing (2) that accommodates at least part of the rotating shaft and supports the fan case; a first motive force transmitter (9) that transmits motive force of the rotating shaft to the fan; and a support member (12) disposed inward of the first motive force transmitter in the radial direction, the support member coupling the nose cone to the casing such that the support member supports the nose cone in a stationary state.Type: ApplicationFiled: November 4, 2015Publication date: December 21, 2017Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Akihito ABE, Tatsuhiko GOI, Masahide KAZARI, Hidenori ARISAWA
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Publication number: 20170328236Abstract: Provided is an oil discharging structure for a bearing, including: at least one bearing configured to rotatably support a rotary shaft; a cylindrical bearing housing provided radially outward of the bearing, and configured to accommodate the bearing; an oil recovery chamber provided radially outward of the bearing housing, and configured to recover an lubricating oil supplied to the bearing; and an oil discharge passage penetrating a peripheral wall of the bearing housing in a radial direction, and configured to discharge the lubricating oil from the bearing to the oil recovery chamber. The oil discharge passage is provided with a partition wall that divides the oil discharge passage in a circumferential direction.Type: ApplicationFiled: December 2, 2016Publication date: November 16, 2017Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Zenya SHINOHARA, Hidenori ARISAWA, Seiji YAMASHITA, Katsunari TANAKA, Takeshi YOSHIDA
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Patent number: 9810312Abstract: A planetary gear device includes: a sun gear; a plurality of planet gears that mesh with the sun gear; and a baffle unit disposed in a circumferential gap between the adjacent planet gears. The baffle unit includes: a first introduction opening portion open in a radially inward direction to introduce lubricating oil, which has lubricated the sun gear and the planet gears, into the baffle unit; an end wall forming one end in an axial direction of the first introduction opening portion; a discharge opening portion to discharge lubricating oil in the baffle unit; and a guide portion disposed at a side portion of the baffle unit on a rear side in rotation direction of the sun gear, and configured to cover the first introduction opening portion in the circumferential direction and to guide the lubricating oil to an outer circumference of the adjacent planet gears.Type: GrantFiled: March 31, 2016Date of Patent: November 7, 2017Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Katsuyoshi Obayashi, Yoshihiro Yamasaki, Yoshiyuki Noguchi, Hidenori Arisawa, Seiji Yamashita
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Publication number: 20170030439Abstract: In a continuously variable transmission including: a first transmission unit including a first input disc and a first output disc; and a second transmission unit disposed such that a back surface of a second input disc is opposed to a back surface of the first input disc, an input gear shroud covering an input gear disposed between the back surfaces of the first and second input discs, a first input disc side surface shroud integrally provided to a first input disc support supporting the first input disc on a housing of the continuously variable transmission, and a second input disc side surface shroud integrally provided to a second input disc support supporting the second input disc on the housing of the continuously variable transmission, are provided.Type: ApplicationFiled: October 11, 2016Publication date: February 2, 2017Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Kenichiro TANAKA, Hideyuki IMAI, Hidenori ARISAWA, Masahide KAZARI
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Publication number: 20160208905Abstract: A planetary gear device includes: a sun gear; a plurality of planet gears that mesh with the sun gear; and a baffle unit disposed in a circumferential gap between the adjacent planet gears. The baffle unit includes: a first introduction opening portion open in a radially inward direction to introduce lubricating oil, which has lubricated the sun gear and the planet gears, into the baffle unit; an end wall forming one end in an axial direction of the first introduction opening portion; a discharge opening portion to discharge lubricating oil in the baffle unit; and a guide portion disposed at a side portion of the baffle unit on a rear side in rotation direction of the sun gear, and configured to cover the first introduction opening portion in the circumferential direction and to guide the lubricating oil to an outer circumference of the adjacent planet gears.Type: ApplicationFiled: March 31, 2016Publication date: July 21, 2016Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Katsuyoshi OBAYASHI, Yoshihiro YAMASAKI, Yoshiyuki NOGUCHI, Hidenori ARISAWA, Seiji YAMASHITA
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Publication number: 20160102750Abstract: A toroidal-type stepless transmission includes: at least a pair of an input disc and an output disc; a power roller tiltably provided between the pair of the input disc and the output disc, the power roller being configured to transmit a driving force from the input disc to the output disc; and disc shrouds covering the input disc and the output disc, respectively. Each of the disc shrouds has an outer peripheral portion formed with an oil discharge groove configured to discharge an oil within each disc shroud to the outside, the oil discharge groove penetrating from an inner surface of the disc shroud to an outer surface of the disc shroud and extending in a circumferential direction of the disc shroud.Type: ApplicationFiled: December 18, 2015Publication date: April 14, 2016Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Kenichiro TANAKA, Hideyuki IMAI, Tatsuhiko GOI, Hidenori ARISAWA, Masahide KAZARI
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Patent number: 9309958Abstract: A lubricating device for a gear train (5) including a plurality of gears meshing with each other includes a shroud (7) configured to cover the gear train (5) and a housing (9) configured to cover the shroud (7). The shroud (7) includes: an oil supply nozzle (25) configured to supply oil (OL) to a meshing position (21) of the gear train (5); and oil-drain ports (41) through which the oil (OL) is discharged from the shroud. The housing (9) includes, at its lower part, a draw-out port (43) through which the oil (OL) discharged from the oil-drain ports (41) is drawn to the outside of the housing. Guide members (47) are provided between the shroud (7) and the housing (9). The guide members (47) guide the oil (OL) discharged from the respective oil-drain ports (41) of the shroud (7) such that the oil (OL) flows downward through space (S) between the shroud (7) and the housing (9).Type: GrantFiled: July 11, 2011Date of Patent: April 12, 2016Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Kenichiro Tanaka, Tatsuhiko Goi, Hidenori Arisawa, Motohiko Nishimura
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Publication number: 20150352477Abstract: A mist separator for separating liquid mist from a gas containing the liquid mist includes a rotor fixed to a hollow rotary shaft and includes main rotating vanes; and a stator axially juxtaposed to the rotor. The stator includes main fixed vanes located downstream of the main rotating vanes on a flow path for the gas; and a cover that covers outer peripheries of the main fixed vanes and the main rotating vanes. The main fixed vanes are formed so as to cause the gas to flow radially inward from the outer peripheries thereof while a flow rate of the gas is decreased, and the cover is provided with a cover discharge port to discharge a recovery liquid which is a collection of the liquid mist to the outside of the cover.Type: ApplicationFiled: August 20, 2015Publication date: December 10, 2015Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Hiroshi FUJII, Hirohito SHIMIZU, Ryo YASUDA, Yuji YAMAZAKI, Hidenori ARISAWA, Masahide KAZARI, Kazuo TANAKA
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Patent number: 8991557Abstract: A gear train lubricating device configured to supply lubricating oil OL to a gear included in a gear train is provided. The gear train lubricating device includes: a shroud covering, among components constituting the gear, at least teeth of the gear; and a lubricating oil supply port through which the lubricating oil OL is supplied to a meshing position of the gear. The shroud has an outlet port formed therein, through which the supplied lubricating oil OL is discharged. The outlet port is formed in a portion of the shroud that is positioned radially outward from the gear, such that the outlet port is disposed at an angular position that is 90°±15° forward from the meshing position in a rotation direction R1 of the gear.Type: GrantFiled: December 6, 2010Date of Patent: March 31, 2015Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Hidenori Arisawa, Hideyuki Imai, Tatsuhiko Goi, Motohiko Nishimura