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公开(公告)号：US09945273B2
公开(公告)日：2018-04-17
申请号：US15244595
申请日：2016-08-23
Applicant: HYUNDAI MOTOR COMPANY
Inventor： Byong Young Choi
CPC classification number: F01L13/0042 , F01L1/047 , F01L1/267 , F01L1/34413 , F01L13/0036 , F01L2001/0473 , F01L2013/0052
Abstract: A multiple variable valve lift apparatus includes a first moving cam, the first moving cam provided to rotate together with the camshaft and move in an axial direction of the camshaft, a plurality of cams realizing different valve lifts relative to each other, a second moving cam provided to rotate together with the camshaft and move in an axial direction of the camshaft, and forming a second cam guide protrusion and a plurality of cams realizing different valve lifts relative to each other, a first operating unit, a second operating unit, a controller, and a valve opening/closing unit, wherein at least two pins are respectively disposed at the first operating unit and the second operating unit so as to guide the first cam guide protrusion and the second cam guide protrusion, and an interference preventing pin formed to have a relatively large diameter in comparison with the other pin.
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公开(公告)号：US09926816B2
公开(公告)日：2018-03-27
申请号：US15198978
申请日：2016-06-30
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Faheem Ahmed , Colin Foster , David Chandler , John Whitton , Kate Higdon
CPC classification number: F01L1/2405 , F01L1/18 , F01L1/181 , F01L1/24 , F01L1/2411 , F01L1/267 , F01L13/0005 , F01L2001/186 , F01L2001/467
Abstract: A switchable rocker arm for valve deactivation is provided for a valve train of an internal combustion engine. The switchable rocker arm includes a cam lever assembly, a valve lever assembly, and a hydraulically actuated coupling assembly that is radially arranged between the cam lever and valve lever assemblies. The coupling assembly includes a shuttle pin, a locking pin with a round or flat locking interface, and optional shuttle pin and locking pin sleeves. In a first, locked position, the rotational motion of a camshaft is translated to linear motion of an engine valve. In a second, unlocked position, the cam lever assembly rotates about the valve lever assembly, facilitating valve deactivation. A pivot joint arranged between the cam lever and valve lever assemblies facilitates an arcuate lost motion of the cam lever assembly. An integrated arrangement for one or more lost motion springs offers packaging and functional advantages.
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公开(公告)号：US09909512B2
公开(公告)日：2018-03-06
申请号：US15119240
申请日：2015-02-25
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yoshikazu Asami , Toshikazu Kato , Ryuta Teraya
IPC: B60L9/00 , F02D13/02 , B60W10/06 , B60W10/08 , B60W10/26 , F02D41/02 , F02P5/15 , F01L13/00 , B60W20/16 , F02D37/02 , F02D41/00 , F01L1/24 , F01L1/26 , F01L1/053
CPC classification number: F02D13/0215 , B60W10/06 , B60W10/08 , B60W10/26 , B60W20/16 , B60W2510/068 , B60W2510/244 , B60W2530/12 , B60W2710/0616 , B60Y2300/436 , B60Y2300/437 , B60Y2300/474 , F01L1/2405 , F01L1/267 , F01L13/0063 , F01L2001/0537 , F01L2105/00 , F01L2800/00 , F02D13/023 , F02D13/0269 , F02D37/02 , F02D41/024 , F02D41/0245 , F02D2013/0292 , F02D2041/001 , F02P5/1506 , Y02T10/142 , Y02T10/26 , Y02T10/46 , Y02T10/54 , Y02T10/6286 , Y10S903/905
Abstract: A hybrid vehicle includes a controller that executes catalyst warm-up control for warming up a catalyst, including first control that operates an internal combustion engine at a first operating point, and second control, after executing the first control, that operates the engine at a second operating point irrespective of driving force required to propel the vehicle. Engine output at the second point is larger than engine output at the first point. Ignition timing of the engine at the time when the first control is executed is controlled to a retarded side with respect to an ignition timing of the engine at the time when the second control is executed. When the second control is executed, at least one of a valve lift of an intake valve and a valve operating angle of the intake valve increases as charging of an electrical storage device is more limited.
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公开(公告)号：US09890670B2
公开(公告)日：2018-02-13
申请号：US14955952
申请日：2015-12-01
Applicant: Hyundai Motor Company
Inventor： You Sang Son , Kyoung Pyo Ha , Back Sik Kim , Kiyoung Kwon
CPC classification number: F01L13/0015 , F01L1/18 , F01L1/185 , F01L1/2405 , F01L1/26 , F01L1/267 , F01L13/00 , F01L13/0026 , F01L13/0063 , F01L2013/0068 , F01L2013/0084 , F01L2105/00
Abstract: A continuously variable valve lift apparatus may include a camshaft, a cam portion on which a cam is formed and into which the camshaft is inserted, a slider housing into which the cam portion is rotatably inserted and of which a position is rotatable around a pivot shaft, a control portion engaged with the slider housing and configured to selectively rotate the slider housing around the pivot shaft, an output portion rotatable around the pivot shaft, contacting the cam and onto which a valve shoe is formed, and a valve device contacting the valve shoe and driven by rotation of the cam.
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公开(公告)号：US09869253B2
公开(公告)日：2018-01-16
申请号：US15157257
申请日：2016-05-17
Applicant: Hyundai Motor Company
Inventor： Byong Young Choi , Seung Kook Han , Soo Hyung Woo , Wootae Kim
IPC: F01L1/04 , F02D13/02 , F01L1/053 , F01L1/047 , F01L1/344 , F01L13/00 , F01L1/08 , F01L1/18 , F01L1/26
CPC classification number: F02D13/0207 , F01L1/053 , F01L1/08 , F01L1/185 , F01L1/267 , F01L1/34413 , F01L13/0005 , F01L13/0036 , F01L13/0042 , F01L2001/0473 , F01L2013/0052 , F01L2013/101 , F01L2105/00 , Y02T10/18
Abstract: A multiple variable valve lift apparatus may include a first moving cam provided to rotate together with a camshaft and move in an axial direction of the camshaft, and configured to form a first cam guide protrusion and a plurality of cams realizing different valve lifts from each other, a second moving cam provided to rotate together with a second camshaft and move in an axial direction of the second camshaft, and configured to form a second cam guide protrusion and a plurality of cams realizing different valve lifts from each other, a first operating device operated to move the first moving cam in a first direction, a second operating device operated to move the second moving cam in a second direction, a controller configured to control operations of the first operating device and the second operating device, and a valve opening/closing device.
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Patent Agency Ranking
公开(公告)号：US20180010487A1
公开(公告)日：2018-01-11
申请号：US15639562
申请日：2017-06-30
Applicant: SUZUKI MOTOR CORPORATION
Inventor： Koichi TANAKA , Kunio ARASE
CPC classification number: F01L1/344 , F01L1/053 , F01L1/181 , F01L1/267 , F01L2001/0473 , F01L2001/0475 , F01L2001/0535 , F01L2105/00 , F01L2820/035
Abstract: The present invention is capable of more smoothly changing a phase of a cam shaft in a rotation direction. A variable valve mechanism changes an opening/closing timing of an intake valve or an exhaust valve in response to an engine rotation speed. The variable valve mechanism includes: a cam sprocket which rotates in response to a rotation of a crank shaft; an intake cam shaft which is integrated with an intake cam and is provided to be rotatable relatively to the cam sprocket; and a link member that transmits a rotation from the cam sprocket to the intake cam shaft. The link member is supported by the cam sprocket to be swingable and swings in response to a change in rotation speed of the cam sprocket to rotate the intake cam shaft relatively to the cam sprocket.
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公开(公告)号：US20170298787A1
公开(公告)日：2017-10-19
申请号：US15516034
申请日：2015-10-02
Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
Inventor： Yasuo OKAMOTO
CPC classification number: F01L1/185 , F01L1/047 , F01L1/18 , F01L1/267 , F01L1/46 , F01L13/00 , F01L13/0036 , F01L2001/0537 , F01L2001/186 , F01L2001/467 , F01L2103/00 , F01L2103/01 , F01L2105/00
Abstract: A valve gear for an engine includes a camshaft including a cam, a rocker shaft, and a first rocker arm which swings when pressed by the cam. The valve gear includes a spring, which biases the first rocker arm and a second rocker arm which presses an intake valve or an exhaust valve, in a return direction. The valve gear includes a first pin hole of the first rocker arm, a second pin hole and a third pin hole of the second rocker arm, a first switch pin, a second switch pin, a third switch pin, and a switch which switches between a connected state and a non-connected state of the switch pins. The second rocker arm includes a stopper against which the first rocker arm abuts. When the first rocker arm abuts against the stopper, all of the pin holes are located on the same axis.
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公开(公告)号：US09759136B2
公开(公告)日：2017-09-12
申请号：US15014525
申请日：2016-02-03
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Hiroyuki Haga
IPC: F01L1/34 , F02D13/02 , F01L13/00 , F02D41/12 , F01L1/18 , F01L1/26 , F02D41/00 , F01L1/46 , F01L1/24
CPC classification number: F02D13/0207 , F01L1/185 , F01L1/2411 , F01L1/267 , F01L13/0036 , F01L2001/186 , F01L2001/467 , F01L2105/00 , F01L2800/00 , F02D41/0005 , F02D41/123 , F02D2041/001 , Y02T10/18 , Y02T10/42
Abstract: A variable valve operating system assembled in an engine includes a first rocker arm contacting with a valve, a second rocker arm no contacting with any valve, a lost motion spring bringing the second rocker arm into contact with a cam, and switching device for switching the first/second rocker arms to a coupled or uncoupled state. An operation control apparatus for the engine includes element for determining whether or not an engine speed is higher than a first speed at which supply of fuel is allowed to be temporarily stopped, and element for setting a requested quantity of increase/decrease in internal resistance of the engine. When the engine speed is higher than the first speed and an accelerator opening degree is 0%, the switching device switches the first/second rocker arms to the coupled or uncoupled state based on the requested quantity.
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公开(公告)号：US20170254236A1
公开(公告)日：2017-09-07
申请号：US15501099
申请日：2015-07-31
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Eiichi HIOKA
CPC classification number: F01L13/0063 , F01L1/185 , F01L1/267 , F01L1/46
Abstract: A valve device for an internal combustion engine (1) includes a camshaft (16), a cam (17), a control shaft (15), an input arm (14), a first rocker arm (13a), a second rocker arm (13b), a first valve (603a), a second valve (603b), and a slider (18). The input arm (14) is configured such that a cam torque of the cam (17) is transmitted thereto. The slider (18) is configured to allow the input arm (14) to be supported by the control shaft (15). The slider (18) is configured to support the first rocker arm (13a) in a power transmittable manner such that the cam torque transmitted to the input arm (14) is transmitted to the first rocker arm (13a). The slider (18)includes a torsion portion (23) configured to connect the first rocker arm (13a) with the second rocker arm (13b) such that the cam torque transmitted to the first rocker arm (13a) is transmitted to the second rocker arm (13b) via the torsion portion (23).
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公开(公告)号：US09745875B2
公开(公告)日：2017-08-29
申请号：US14422501
申请日：2012-08-22
Applicant: Toshiyuki Yano , Yoshiaki Miyazato , Motohiro Yuge
Inventor： Toshiyuki Yano , Yoshiaki Miyazato , Motohiro Yuge
CPC classification number: F01L13/0057 , F01L1/08 , F01L1/185 , F01L1/2405 , F01L1/267 , F01L13/0005 , F01L2001/0473 , F01L2820/035
Abstract: A variable valve gear for an internal combustion engine includes: a cam base portion integrally or separately provided in a camshaft, and immovably fixed to the camshaft; a cam lobe portion connected to the cam base portion so as to swing and shift between a first state where the cam lobe portion is positioned to project from an outer circumference of the base portion and a second state where the cam lobe portion is positioned to be lower than the cam base portion in the first state; a lock mechanism locking the cam lobe portion in the first and second state; and a biasing member biasing the cam lobe portion to be shifted to the first state, to such an extent that the cam lobe portion is shifted to the second state by reaction force from a cam follower when the locking mechanism is unlocked.
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