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公开(公告)号：US12123330B2
公开(公告)日：2024-10-22
申请号：US17791170
申请日：2020-12-29
发明人： Lifeng Wang , Xiuqiang Wang
CPC分类号： F01L9/14 , F01L13/0015
摘要： A fully variable electro-hydraulic valve system, comprising a sliding sleeve (A103, B103), a spiral shaft (A102, B102), a piston (A105, B105), and a reset spring (A104, B104). The sliding sleeve (A103, B103) is fixed relative to an engine; the piston (A105, B105) abuts against a valve assembly (106); the spiral shaft (A102, B102) is axially controlled by a cam surface of a camshaft (101); and the spiral shaft (A102, B102) is provided with a spiral groove (A102D, B102D) and a blockage part (A102G, B102G). When the spiral groove (A102D, B102D) communicates with a limiting oil hole (A118, B118), a sliding sleeve cavity (Q) communicates with a low-pressure oil path of the engine for pressure relief.
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公开(公告)号：US11788439B2
公开(公告)日：2023-10-17
申请号：US17129356
申请日：2020-12-21
发明人： Andrei Dan Radulescu , Austin Robert Zurface , James R. Sheren , Anthony L. Spoor , Luigi Lia , Philip Michael Kline
CPC分类号： F01L1/185 , F01L1/18 , F01L13/0005 , F01L13/0015 , F01L13/0021 , F01L13/0036 , F01L1/053 , F01L1/2405 , F01L2001/0537 , F01L2001/186 , F01L2001/467 , F01L2305/00 , F01L2810/02 , Y10T74/20882 , Y10T74/2107
摘要： A rocker arm includes an outer arm having a first side and a second side, an inner arm positioned between the first side and the second side of the outer arm, a pivot axle pivotally coupling the inner arm to the outer arm at a first end of the inner arm and a first end of the outer arm, and a latch pin having a first position and a second position. The latch pin in the first position pivotally fixes the inner arm to the outer arm at a second end of each of the inner arm and a second end of the outer arm, and in the second position allows the inner arm and the outer arm to pivot independently. Two lost motion springs are respectively secured to mounts provided on the outer arm.
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3.发明申请公开(公告)号：US20190249575A9
公开(公告)日：2019-08-15
申请号：US15790956
申请日：2017-10-23
申请人： Eaton Corporation
发明人： Andrei Dan Radulescu , Austin Robert Zurface , James R. Sheren , Anthony L. Spoor , Luigi Lia , Philip Michael Kline
CPC分类号： F01L13/0021 , F01L1/18 , F01L1/185 , F01L1/2405 , F01L3/08 , F01L3/24 , F01L13/0005 , F01L13/0015 , F01L13/0036 , F01L2001/0537 , F01L2001/186 , F01L2001/467 , F01L2013/101 , F01L2101/00 , F01L2105/00 , F01L2800/18 , F01L2810/02 , F01L2820/01 , F01L2820/033 , F01L2820/04 , F01L2820/045 , Y10T74/20882 , Y10T74/2107
摘要： A system includes a rocker arm assembly for operative engagement with a first and second cam. The assembly includes a first arm for operatively engaging the first cam for a first desired lift profile, a second arm for operatively engaging the second cam for a second desired lift profile, where the second arm includes a latch to engage the second arm with the first arm. The latch is responsive to supplied oil pressure and release oil pressure to switch between lift profiles. The system includes the latch coupled to the supplied or released oil pressure to engage the arms before the first and second arms are engaged with the base circle portion of each of the respective first and second cams.
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公开(公告)号：US20190153913A1
公开(公告)日：2019-05-23
申请号：US16169578
申请日：2018-10-24
发明人： You Sang SON , Ingee SUH , Kiyoung KWON , In Sang RYU , Kyoung Pyo HA , Dongheon PARK , Wootae KIM , Back Sik KIM , Seung Jae LEE
CPC分类号： F01L13/0015 , F01L1/0532 , F01L1/08 , F01L1/34 , F01L1/352 , F01L2001/0476 , F01L2001/0537 , F01L2013/0084 , F01L2013/103 , F02D41/009
摘要： A continuous variable valve duration apparatus may include: a camshaft; a cam unit on which a cam is formed, and the camshaft inserted to the cam; an inner wheel for transmitting rotation of the camshaft to the cam unit; a wheel housing into which the inner wheel is rotatably inserted and movable perpendicular to the camshaft; a guide shaft on which a guide screw thread is formed and disposed perpendicular to the camshaft; a worm wheel formed with an inner screw thread for engaging with the guide screw thread, and the worm wheel disposed within the wheel housing; and a control shaft on which a control worm for engaging with the worm wheel is formed.
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公开(公告)号：US20180291775A1
公开(公告)日：2018-10-11
申请号：US15947535
申请日：2018-04-06
发明人： Shigeki MIYASHITA
CPC分类号： F01L13/0015 , F01L2800/01 , F01L2800/03 , F01L2820/044 , F02D13/00 , F02D41/042 , F02D41/064 , F02D2041/001 , F02D2200/021 , F02D2200/0414 , F02D2200/70
摘要： In a control device for an engine, the engine includes combustion chambers, ports connected to the combustion chambers, and valves that open and close areas between the combustion chambers and the ports. The control device includes an electronic control unit that is configured to execute an anti-freezing operation of performing control to fully close the valves or make the valves be in a state of being opened with a lift amount of 1 mm or more, in a case where temperatures around the valves are lowered to a predetermined temperature range after the engine is stopped, or in a case where an outside air temperature when the engine is stopped is equal to or lower than a predetermined temperature. The predetermined temperature range is a temperature range in which an upper limit value is lower than 10° C., and the predetermined temperature is lower than 5° C.
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公开(公告)号：US20180274393A1
公开(公告)日：2018-09-27
申请号：US15877437
申请日：2018-01-23
发明人： Takayoshi KAWAI , Noriyasu ADACHI , Shigehiro SUGIHIRA , Keisuke SASAKI , Kaoru OTSUKA , Shinji SADAKANE , Hiroyuki SUGIHARA
CPC分类号： F01L1/047 , F01L1/08 , F01L13/0015 , F01L13/0036 , F01L2013/0052 , F01L2800/01 , F01L2820/04 , F01L2820/041 , F01L2820/042 , F02D41/00 , F02D41/0002 , F02D41/062 , F02D2041/001 , F02D2041/0092 , F16H53/025
摘要： At crank angle CA10 at which the switch request of the drive cam was issued, the ejection operations of the pins at all the solenoid actuators started simultaneously. The ejected pins are seated on the cam carriers at erank angle CA12. The pin seated on the cam carrier moves along the grooves in accordance with the rotation of the cam carrier. The earliest finish timing of the switch operation of the drive cam is at crank angle CA13 (#4 cylinder). At the crank angle CA13, drive of the fuel injector and the ignition device in each cylinder is permitted.
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公开(公告)号：US10072536B2
公开(公告)日：2018-09-11
申请号：US15275549
申请日：2016-09-26
发明人： You Sang Son , Kyoung Pyo Ha , Back Sik Kim
CPC分类号： F01L1/34 , F01L1/047 , F01L1/053 , F01L1/356 , F01L13/0015 , F01L13/0026 , F01L2001/0475 , F01L2001/0476 , F01L2001/0537 , F01L2001/34483 , F01L2013/0073 , F01L2013/103 , F01L2810/02 , F16H1/16 , F16H25/10
摘要： A continuous variable valve duration apparatus may include: a camshaft; first and second cam portions on which a cam is formed respectively, to which the camshaft is inserted and of which relative phase angles with respect to the camshaft are variable; first and second inner brackets transmitting rotation of the camshaft to the first and second cam portions respectively; a slider housing in which the first and second inner brackets are rotatably inserted, and on which a control slot is formed; a cam cap rotatably supporting the first and the second cam portions and to which the slider housing is slidably mounted; a control shaft which is parallel to the camshaft and on which a control rod is eccentrically formed; an eccentric plate rotatably connected to the control rod and rotatably inserted into the control slot; and a control portion selectively rotating the control shaft.
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公开(公告)号：US10060307B2
公开(公告)日：2018-08-28
申请号：US15272511
申请日：2016-09-22
发明人： You Sang Son , Woong Kim , Kyoung Pyo Ha , Back Sik Kim , Dongheon Park
CPC分类号： F01L13/0015 , F01L1/047 , F01L1/053 , F01L1/356 , F01L2001/0476 , F01L2001/0537 , F01L2013/0084 , F01L2013/103 , F01L2013/11 , F01L2013/111 , F01M9/10 , F01M9/105 , F01M11/02 , F02D13/0211 , Y02T10/18
摘要： A continuous variable valve duration apparatus may include: a camshaft; first and second cam portions on which a cam is formed respectively; first and second inner brackets transmitting rotation of the camshaft to the first and second cam portions respectively; a slider housing in which the first and the second inner brackets are rotatably inserted; first and second guiding portions formed on the slider housing; a control shaft parallel to the camshaft; a control rod eccentrically formed on the control shaft; a positioning protrusion connected to the control shaft; a guide head on which a head guiding portion and a head hole are formed; a cam cap supporting rotations of the first and the second cam portions and guiding movement of the slider housing, a control portion selectively rotating the control shaft; and a stopper unit limiting movement of the positioning protrusion.
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公开(公告)号：US09988989B2
公开(公告)日：2018-06-05
申请号：US15258052
申请日：2016-09-07
发明人： In Sang Ryu , Kyoung Pyo Ha , You Sang Son , Kiyoung Kwon
IPC分类号： F02D13/02 , F01L1/34 , B60W10/06 , F02D41/26 , B60W20/10 , F01L1/047 , F02D41/00 , F02M35/104 , F01L1/053 , F01L13/00
CPC分类号： F02D13/0215 , B60W10/06 , B60W20/10 , F01L1/047 , F01L1/053 , F01L1/34 , F01L13/0015 , F01L2001/0537 , F01L2800/00 , F02D13/0261 , F02D41/0002 , F02D41/26 , F02D2041/001 , F02D2041/002 , F02D2200/101 , F02M35/104 , Y02T10/18 , Y02T10/42 , Y10S903/905
摘要： A method for controlling valve timing is provided for an engine including a continuous variable valve duration device disposed on an intake valve side, and a continuous variable valve duration device and continuous variable valve timing device disposed on an exhaust valve side. The method includes: classifying first, second, third, fourth, and fifth control regions depending on an engine speed and an engine load; applying a maximum duration to an intake valve and controlling a valve overlap in the first control region; applying the maximum duration to the intake valve and exhaust valve in the second control region; controlling a manifold absolute pressure (MAP) of an intake manifold to be maintained consistently in the third control region; controlling a wide open throttle valve (WOT) and retarding an exhaust valve opening (EVO) timing in the fourth control region; and controlling the WOT and retarding an intake valve closing (IVC) timing in the fifth control region.
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公开(公告)号：US09982578B2
公开(公告)日：2018-05-29
申请号：US15275561
申请日：2016-09-26
发明人： You Sang Son , Kyoung Pyo Ha , Back Sik Kim
IPC分类号： F01L13/00 , F01L1/34 , F01L1/356 , F16H25/10 , F16H1/16 , F01L1/047 , F01L1/053 , F01M9/10 , F01M11/02 , F02D13/02 , F01L1/344
CPC分类号： F01L13/0036 , F01L1/047 , F01L1/053 , F01L1/12 , F01L1/34 , F01L1/356 , F01L13/0015 , F01L13/0026 , F01L2001/0471 , F01L2001/0475 , F01L2001/0476 , F01L2001/0535 , F01L2001/0537 , F01L2001/34483 , F01L2013/0073 , F01L2013/103 , F01L2810/02 , F01M9/10 , F01M11/02 , F02D13/0207 , F16H1/16 , F16H25/10 , Y02T10/18
摘要： A continuous variable valve duration apparatus may include a camshaft, a first and second cam portions on which a cam is formed respectively, of which the camshaft is inserted thereto and of which relative phase angles with respect to the camshaft are variable, a first and second inner brackets transmitting rotation of the camshaft to the first and second cam portions respectively, a slider housing in which the first and second inner brackets are rotatably inserted, of which a relative position with respect to the camshaft is variable, and on which a control slot is formed, a cam cap rotatably supporting the first and the second cam portions and to which the slider housing is slidably mounted, a control shaft parallel to the camshaft and on which a control rod is eccentrically formed, an eccentric plate rotatably connected to the control rod and rotatably inserted into the control slot, a separation prevention pin disposed to inhibit the eccentric plate from being separated from the slider housing and a control portion selectively rotating the control shaft so as to controlling a position of the slider housing.
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