Patents by Inventor Hideomi Iyanaga
Hideomi Iyanaga 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: 11143062Abstract: A valve opening-closing timing control apparatus includes a phase adjustment mechanism. The phase adjustment mechanism includes an input gear and an elastic member that applies biasing force to the input gear in such a way that the input gear meshes with an output gear. An eccentric member includes one first concave portion along a circumferential direction thereof, being formed on an outer circumferential surface. The elastic member includes a supported portion supported by the first concave portion, and a curved portion and a biasing piece portion that generate biasing force. The elastic member is supported by the first concave portion at two different boundaries in the circumferential direction.Type: GrantFiled: July 14, 2020Date of Patent: October 12, 2021Assignee: AISIN CORPORATIONInventors: Hajime Sano, Tomoharu Otake, Hideomi Iyanaga
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Publication number: 20210017884Abstract: A valve opening-closing timing control apparatus includes a phase adjustment mechanism. The phase adjustment mechanism includes an input gear and an elastic member that applies biasing force to the input gear in such a way that the input gear meshes with an output gear. An eccentric member includes one first concave portion along a circumferential direction thereof, being formed on an outer circumferential surface. The elastic member includes a supported portion supported by the first concave portion, and a curved portion and a biasing piece portion that generate biasing force. The elastic member is supported by the first concave portion at two different boundaries in the circumferential direction.Type: ApplicationFiled: July 14, 2020Publication date: January 21, 2021Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Hajime SANO, Tomoharu OTAKE, Hideomi IYANAGA
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Patent number: 10378395Abstract: A valve opening/closing timing control apparatus includes: a driving side rotator configured to rotate synchronously with a crankshaft of an internal combustion engine; a driven side rotator disposed coaxially with a rotation axis of the driving side rotator and configured to rotate integrally with a valve opening/closing camshaft; a connecting bolt disposed coaxially with the rotation axis to connect the driven side rotator to the camshaft, and having an advanced angle port and a retarded angle port formed to extend from an outer peripheral surface to an inner space thereof, the advanced angle port and the retarded angle port communicating with an advanced angle chamber and a retarded angle chamber between the driving side rotator and the driven side rotator, respectively; and a valve unit disposed in the inner space of the connecting bolt.Type: GrantFiled: November 9, 2017Date of Patent: August 13, 2019Assignee: AISIN SEIKI KABUSHIKI KAISHAInventors: Takeo Asahi, Yuji Noguchi, Tomohiro Kajita, Hideyuki Suganuma, Hiroyuki Hamasaki, Hideomi Iyanaga, Toru Sakakibara
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Patent number: 10273834Abstract: A valve opening/closing timing control apparatus includes: a driving side rotator configured to rotate synchronously with a crankshaft of an internal combustion engine; a driven side rotator disposed coaxially with a rotation axis of the driving side rotator and configured to rotate integrally with a valve opening/closing camshaft; a connecting bolt disposed coaxially with the rotation axis to connect the driven side rotator to the camshaft, and having an advanced angle port and a retarded angle port formed to extend from an outer peripheral surface to an inner space thereof, the advanced angle port and the retarded angle port communicating with an advanced angle chamber and a retarded angle chamber between the driving side rotator and the driven side rotator, respectively; and a valve unit disposed in the inner space of the connecting bolt.Type: GrantFiled: November 9, 2017Date of Patent: April 30, 2019Assignee: AISIN SEIKI KABUSHIKI KAISHAInventors: Tomohiro Kajita, Yuji Noguchi, Takeo Asahi, Hideyuki Suganuma, Hiroyuki Hamasaki, Toru Sakakibara, Hideomi Iyanaga
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Patent number: 10273836Abstract: A valve opening/closing timing control apparatus includes: a driving side rotator configured to rotate synchronously with a crankshaft of an internal combustion engine; a driven side rotator disposed coaxially with a rotation axis of the driving side rotator and configured to rotate integrally with a valve opening/closing camshaft; a connecting bolt disposed coaxially with the rotation axis to connect the driven side rotator to the camshaft, and having an advanced angle port and a retarded angle port formed to extend from an outer peripheral surface to an inner space thereof, the advanced angle port and the retarded angle port communicating with an advanced angle chamber and a retarded angle chamber between the driving side rotator and the driven side rotator, respectively; and a valve unit disposed in the inner space of the connecting bolt.Type: GrantFiled: November 9, 2017Date of Patent: April 30, 2019Assignee: AISIN SEIKI KABUSHIKI KAISHAInventors: Takeo Asahi, Yuji Noguchi, Tomohiro Kajita, Hideyuki Suganuma, Hiroyuki Hamasaki, Hideomi Iyanaga, Toru Sakakibara
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Patent number: 10273835Abstract: A valve opening/closing timing control apparatus includes: a driving side rotator configured to rotate synchronously with a crankshaft of an internal combustion engine; a driven side rotator disposed coaxially with a rotation axis of the driving side rotator so as to rotate integrally with a valve opening and closing camshaft; a connecting bolt disposed coaxially with the rotation axis to connect the driven side rotator to the camshaft and having an advanced angle port and a retarded angle port formed to extend from an outer peripheral surface to an inner space thereof, which respectively communicate with an advanced angle chamber and a retarded angle chamber between the driving side rotator and the driven side rotator; and a valve unit disposed in the inner space of the connecting bolt, in which the valve unit includes a check valve, and the check valve includes an opening plate and a valve plate.Type: GrantFiled: November 9, 2017Date of Patent: April 30, 2019Assignee: AISIN SEIKI KABUSHIKI KAISHAInventors: Tomohiro Kajita, Yuji Noguchi, Takeo Asahi, Hideyuki Suganuma, Hiroyuki Hamasaki, Toru Sakakibara, Hideomi Iyanaga
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Publication number: 20180135474Abstract: A valve opening/closing timing control apparatus includes: a driving side rotator configured to rotate synchronously with a crankshaft of an internal combustion engine; a driven side rotator disposed coaxially with a rotation axis of the driving side rotator and configured to rotate integrally with a valve opening/closing camshaft; a connecting bolt disposed coaxially with the rotation axis to connect the driven side rotator to the camshaft, and having an advanced angle port and a retarded angle port formed to extend from an outer peripheral surface to an inner space thereof, the advanced angle port and the retarded angle port communicating with an advanced angle chamber and a retarded angle chamber between the driving side rotator and the driven side rotator, respectively; and a valve unit disposed in the inner space of the connecting bolt.Type: ApplicationFiled: November 9, 2017Publication date: May 17, 2018Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Takeo ASAHI, Yuji NOGUCHI, Tomohiro KAJITA, Hideyuki SUGANUMA, Hiroyuki HAMASAKI, Hideomi IYANAGA, Toru SAKAKIBARA
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Publication number: 20180135472Abstract: A valve opening/closing timing control apparatus includes: a driving side rotator configured to rotate synchronously with a crankshaft of an internal combustion engine; a driven side rotator disposed coaxially with a rotation axis of the driving side rotator so as to rotate integrally with a valve opening and closing camshaft; a connecting bolt disposed coaxially with the rotation axis to connect the driven side rotator to the camshaft and having an advanced angle port and a retarded angle port formed to extend from an outer peripheral surface to an inner space thereof, which respectively communicate with an advanced angle chamber and a retarded angle chamber between the driving side rotator and the driven side rotator; and a valve unit disposed in the inner space of the connecting bolt, in which the valve unit includes a check valve, and the check valve includes an opening plate and a valve plate.Type: ApplicationFiled: November 9, 2017Publication date: May 17, 2018Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Tomohiro KAJITA, Yuji NOGUCHI, Takeo ASAHI, Hideyuki SUGANUMA, Hiroyuki HAMASAKI, Toru SAKAKIBARA, Hideomi IYANAGA
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Publication number: 20180135473Abstract: A valve opening/closing timing control apparatus includes: a driving side rotator configured to rotate synchronously with a crankshaft of an internal combustion engine; a driven side rotator disposed coaxially with a rotation axis of the driving side rotator and configured to rotate integrally with a valve opening/closing camshaft; a connecting bolt disposed coaxially with the rotation axis to connect the driven side rotator to the camshaft, and having an advanced angle port and a retarded angle port formed to extend from an outer peripheral surface to an inner space thereof, the advanced angle port and the retarded angle port communicating with an advanced angle chamber and a retarded angle chamber between the driving side rotator and the driven side rotator, respectively; and a valve unit disposed in the inner space of the connecting bolt.Type: ApplicationFiled: November 9, 2017Publication date: May 17, 2018Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Takeo ASAHI, Yuji NOGUCHI, Tomohiro KAJITA, Hideyuki SUGANUMA, Hiroyuki HAMASAKI, Hideomi IYANAGA, Toru SAKAKIBARA
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Publication number: 20180135471Abstract: A valve opening/closing timing control apparatus includes: a driving side rotator configured to rotate synchronously with a crankshaft of an internal combustion engine; a driven side rotator disposed coaxially with a rotation axis of the driving side rotator and configured to rotate integrally with a valve opening/closing camshaft; a connecting bolt disposed coaxially with the rotation axis to connect the driven side rotator to the camshaft, and having an advanced angle port and a retarded angle port formed to extend from an outer peripheral surface to an inner space thereof, the advanced angle port and the retarded angle port communicating with an advanced angle chamber and a retarded angle chamber between the driving side rotator and the driven side rotator, respectively; and a valve unit disposed in the inner space of the connecting bolt.Type: ApplicationFiled: November 9, 2017Publication date: May 17, 2018Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Tomohiro KAJITA, Yuji Noguchi, Takeo Asahi, Hideyuki Suganuma, Hiroyuki Hamasaki, Toru Sakakibara, Hideomi Iyanaga
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Patent number: 9423011Abstract: A variable valve timing control apparatus includes a driving-side rotation member rotating in synchronization with a crankshaft of an internal combustion engine, a driven-side rotation member integrally rotating with a camshaft of the internal combustion engine, an intermediate lock mechanism being selectively switchable between a locked state and an unlocked state, a plurality of hydraulic chambers, at least one of the plurality of hydraulic chambers being positioned at a lower side than an axis of the camshaft, a plurality of partition portions, each of the plurality of partition portions dividing each of the hydraulic chambers into an advanced angle chamber and a retarded angle chamber, an electromagnetic valve including a supply and discharge port that is positioned at an upper side than the axis of the camshaft and switching supply and discharge of fluid relative to the hydraulic chambers, and a pump supplying fluid to the electromagnetic valve.Type: GrantFiled: July 16, 2014Date of Patent: August 23, 2016Assignee: AISIN SEIKI KABUSHIKI KAISHAInventors: Hideomi Iyanaga, Masaki Kobayashi
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Patent number: 8991348Abstract: A valve timing control apparatus includes a driving-side rotation member, a driven-side rotation member, a first lock mechanism selectively achieving a first lock state in which a relative rotation phase of the driven-side rotation member relative to the driving-side rotation member is locked at an intermediate lock phase and a first lock release state, and a second lock mechanism selectively achieving a second lock state in which the relative rotation phase is locked at one of a most advanced angle phase and a most retarded angle phase and a second lock release state, the driven-side rotation member being rotatable relative to the driving-side rotation member by a first clearance angle in the first lock state, the driven-side rotation member being rotatable relative to the driving-side rotation member by a second clearance angle in the second lock state, the second clearance angle being smaller than the first clearance angle.Type: GrantFiled: March 10, 2014Date of Patent: March 31, 2015Assignee: Aisin Seiki Kabushiki KaishaInventors: Yoshiyuki Kawai, Shohei Masuda, Masaki Kobayashi, Kazuo Ueda, Hideomi Iyanaga
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Publication number: 20150033907Abstract: A variable valve timing control apparatus includes a driving-side rotation member rotating in synchronization with a crankshaft of an internal combustion engine, a driven-side rotation member integrally rotating with a camshaft of the internal combustion engine, an intermediate lock mechanism being selectively switchable between a locked state and an unlocked state, a plurality of hydraulic chambers, at least one of the plurality of hydraulic chambers being positioned at a lower side than an axis of the camshaft, a plurality of partition portions, each of the plurality of partition portions dividing each of the hydraulic chambers into an advanced angle chamber and a retarded angle chamber, an electromagnetic valve including a supply and discharge port that is positioned at an upper side than the axis of the camshaft and switching supply and discharge of fluid relative to the hydraulic chambers, and a pump supplying fluid to the electromagnetic valve.Type: ApplicationFiled: July 16, 2014Publication date: February 5, 2015Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Hideomi IYANAGA, Masaki KOBAYASHI
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Publication number: 20140251245Abstract: A valve timing control apparatus includes a driving-side rotation member, a driven-side rotation member, a first lock mechanism selectively achieving a first lock state in which a relative rotation phase of the driven-side rotation member relative to the driving-side rotation member is locked at an intermediate lock phase and a first lock release state, and a second lock mechanism selectively achieving a second lock state in which the relative rotation phase is locked at one of a most advanced angle phase and a most retarded angle phase and a second lock release state, the driven-side rotation member being rotatable relative to the driving-side rotation member by a first clearance angle in the first lock state, the driven-side rotation member being rotatable relative to the driving-side rotation member by a second clearance angle in the second lock state, the second clearance angle being smaller than the first clearance angle.Type: ApplicationFiled: March 10, 2014Publication date: September 11, 2014Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Yoshiyuki KAWAI, Shohei Masuda, Masaki Kobayashi, Kazuo Ueda, Hideomi Iyanaga
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Publication number: 20140251248Abstract: A valve timing control apparatus includes a driving-side rotation member, a driven-side rotation member, and a lock mechanism including a recess portion, a lock member engageable and disengageable relative to the recess portion, and a biasing member. The recess portion includes a lock groove portion with which the lock member is configured to engage to lock a relative rotation phase at a lock phase, and a restriction groove portion. The lock groove portion includes a lock bottom surface and the restriction groove portion includes a restriction bottom surface. A second depth from an opening position of the recess portion to the restriction bottom surface is smaller than a first depth from the opening position to the lock bottom surface. The second depth from the opening position to the restriction bottom surface is smaller than a third depth from the restriction bottom surface to the lock bottom surface.Type: ApplicationFiled: February 5, 2014Publication date: September 11, 2014Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Yoshiyuki KAWAI, Shohei Masuda, Masaki Kobayashi, Kazuo Ueda, Hideomi Iyanaga