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公开(公告)号：US12071869B2
公开(公告)日：2024-08-27
申请号：US17598091
申请日：2020-03-24
Applicant: THYSSENKRUPP PRESTA TECCENTER AG , thyssenkrupp AG
Inventor： Marcel Weidauer , Jens Schirmer
CPC classification number: F01L13/0036 , F01L1/047 , F01L1/46 , F01L13/0015 , F01L2001/0473 , F01L2013/001 , F01L2013/0052 , F01L2013/0078 , F01L2820/031
Abstract: A slide cam system includes a camshaft comprising a carrier shaft with slide cam elements that each comprise a slotted switching member having a switching groove. The slide cam elements are displaceable axially relative to the carrier shaft by an actuator pin. A displacement element is arranged parallel with a longitudinal axis of the carrier shaft, and the displacement element is axially displaceable in a direction of the longitudinal axis. The displacement element has a first coupling pin arranged in a region of the first slide cam element and a second coupling pin arranged in a region of the second slide cam element. The coupling pins cooperate with a slotted switching member of the associated slide cam element such that as a result of the displacement element a movement initiated by the actuator pin of the first slide cam element can be transmitted to the second slide cam element.
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公开(公告)号：US20190214209A1
公开(公告)日：2019-07-11
申请号：US16332250
申请日：2017-08-21
Applicant: Kendrion (Villingen) GmbH
Inventor： Rolf Hermann , Andreas Kammerer
CPC classification number: H01H50/023 , F01L1/047 , F01L1/344 , F01L2013/0052 , F01L2103/00 , F01L2820/031 , H01F7/128 , H01F2007/062 , H01H50/18 , H01H50/36 , H01H50/44 , H01H50/54 , H01R13/6683 , H01R13/70
Abstract: An electromagnetic adjustment device, in particular for camshaft adjustment, having a plug housing made of insulating potting material, in which a stationary coil unit and a sensor unit are seated in a potted manner, which each have terminals electrically connected via electrical lines to contact pins protruding on the plug housing, and to an actuating unit, in which at least one axially movable armature is seated, which is axially movable upon energizing of the coil unit, for example, to interact with at least one tappet of a camshaft adjustment unit of a motor vehicle, where the terminals and the electrical lines of the coil unit and the sensor unit to the contact pins are embedded in the potting material of the plug housing.
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公开(公告)号：US20190178117A1
公开(公告)日：2019-06-13
申请号：US16001802
申请日：2018-06-06
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Soo Hyung Woo , Back Sik Kim , Seung Kook Han
IPC: F01L13/00
CPC classification number: F01L13/0042 , F01L1/0532 , F01L2013/0052 , F01L2013/101
Abstract: A variable valve device for an engine, may include a camshaft; a movable cam device fitted over the camshaft to be slidable in an axial direction of the camshaft, and configured such that cams with at least two different cam profiles and a guide protruding portion are disposed along the axial direction of the camshaft; at least one shaft groove linearly processed to have a predetermined cross-sectional shape in an external circumferential surface of the camshaft along the axial direction thereof; a cam groove provided in an internal circumferential surface of the movable cam device to communicate with the shaft groove; and an insertion member inserted into a communication space defined by the shaft groove and the cam groove such that a rotational displacement of the camshaft is transmitted to the movable cam device.
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公开(公告)号：US20190003351A1
公开(公告)日：2019-01-03
申请号：US16023469
申请日：2018-06-29
Applicant: HONDA MOTOR CO., LTD.
Inventor： Dai KATAOKA , Yoshihiro TAKADA
CPC classification number: F01L13/0036 , F01L1/022 , F01L1/026 , F01L1/053 , F01L2001/0473 , F01L2001/0537 , F01L2013/0052 , F01L2013/105 , F01L2250/02 , F02F7/0021 , F02F2007/0041
Abstract: An engine variable valve operating apparatus includes a cam switching mechanism having a switching drive shaft. When the switching drive shaft is longitudinally moved, a cam mechanism advances and retracts a switching pin. When the switching pin is advanced to engage in a lead groove formed around a cam carrier and the cam carrier is axially moved while rotating, cam lobes around the cam carrier are switched to act on an engine valve. An actuator for the switching drive shaft includes an actuator drive body which is linearly reciprocally movable and is coupled to a longitudinal end of the switching drive shaft to axially move the same. The above arrangement enables the cam switching mechanism and the actuator mechanism to be simple and compact in structure for preventing the engine from becoming large in size.
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公开(公告)号：US20180291828A1
公开(公告)日：2018-10-11
申请号：US15483289
申请日：2017-04-10
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Douglas R. Verner , Scot A. Douglas
CPC classification number: F02D41/068 , F01L13/0036 , F01L2013/0052 , F01L2013/101 , F01L2800/01 , F01L2800/02 , F01L2820/01 , F01L2820/044 , F02D13/0207 , F02D41/20 , F02D2041/001 , F02D2041/2051 , F02D2200/021 , F02D2200/70 , H05B6/101
Abstract: A method for heating a sliding camshaft actuator at cold engine start wherein the sliding camshaft actuator includes at least one magnetic field generating coil having a core, a piston armature disposed in the core of the magnetic field generating coil, a magnet in mechanical communication with the piston armature, and an actuator pin in mechanical communication with the magnet. The method includes detecting a cold engine start condition and reversing an energizing voltage on the magnetic field generating coil when the outside temperature is below a predetermined temperature threshold. The reverse energizing voltage on the magnetic field generating coil is maintained for a predetermined period of time to heat the piston armature, the magnet, and the actuator pin.
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Patent Agency Ranking
公开(公告)号：US20180283227A1
公开(公告)日：2018-10-04
申请号：US15472408
申请日：2017-03-29
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Scot A. DOUGLAS , Douglas R. VERNER
CPC classification number: F02D13/0223 , F01L1/053 , F01L1/185 , F01L13/0036 , F01L2001/0537 , F01L2013/0052 , F01L2013/101 , F01L2105/00 , F01L2820/02 , F01L2820/041 , F02D13/0207
Abstract: A method for retracting a partially extended pin of a sliding camshaft actuator having first and second pins being selectively actuatable by adjacent first and second magnetic field generating coils includes determining if the first or the second pin is partially extended after engine ignition. A partially extended first pin is retracted with flux linkage created by the second magnetic field generating coil being coupled unto the first magnetic field generating coil, and a partially extended second pin is retracted with flux linkage created by the first magnetic field generating coil being coupled unto the second magnetic field generating coil.
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公开(公告)号：US20180223704A1
公开(公告)日：2018-08-09
申请号：US15861282
申请日：2018-01-03
Applicant: HONDA MOTOR CO., LTD.
Inventor： Noriaki OKANO , Yoshihiro TAKADA
CPC classification number: F01L13/0015 , F01L1/047 , F01L13/0036 , F01L2001/0473 , F01L2013/0052 , F01L2013/0078
Abstract: A variable valve-operating device for an internal combustion engine has a cam carrier with cam lobes formed therearound to act on an engine valve and with a speed increasing side lead groove and a speed decreasing side lead groove formed therearound to be engaged with a speed increasing side switching pin and a speed decreasing side switching pin, respectively, to axially shift the cam carrier, to selectively make one of the cam lobes to be operative. A speed increasing side entry lead groove portion of the speed increasing side lead groove is formed in a position axially overlapping a low speed steady position lead groove portion of the speed decreasing side lead groove. A speed decreasing side entry lead groove portion of the speed decreasing side entry lead groove is formed in a position axially overlapping a high speed steady position lead groove portion of the speed increasing side lead groove. The variable valve-operating device can thus be miniaturized by reducing the axial width of the cam carrier.
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公开(公告)号：US20180202329A1
公开(公告)日：2018-07-19
申请号：US15810306
申请日：2017-11-13
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Kaoru OHTSUKA , Hiroyuki SUGIHARA , Shinji SADAKANE , Noriyasu ADACHI , Shigehiro SUGIHIRA , Keisuke SASAKI , Takayoshi KAWAI
CPC classification number: F01L13/0036 , F01L1/047 , F01L2013/0052 , F01L2013/101 , F02B75/02 , F02B75/20 , F02B2075/027 , F02B2075/1816 , F02D13/0226 , F02D13/08 , F02D41/042 , F02D2041/001 , Y02T10/18
Abstract: When a stop request to the engine is issued, it is determined whether or not all of the drive cams are large cams. When it is determined that at least one of the small cams is included in the drive cams, the engine is continued to drive for a while and a switch control for switching the drive cams from the small cams to the large cams is executed within the duration. A self-holding type solenoid is used to switch between the small cams and the large cams. In the switch control, a permission to stop the engine is output at a timing when the “pin protrudable section” of the final cylinder #2 has elapsed.
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公开(公告)号：US09863332B2
公开(公告)日：2018-01-09
申请号：US14709921
申请日：2015-05-12
Applicant: GM Global Technology Operations LLC
Inventor： Jason T. Davis , Melvin R. Terechenok, Jr. , Scott McLane , Sanjeev M. Naik , Kurt Alfred Wellenkotter , Douglas R. Verner , Joseph J. Moon , Kevin Andrew Gady
CPC classification number: F02D13/08 , F01L13/0036 , F01L2001/0473 , F01L2013/0052 , F01L2013/101 , F01L2800/03 , F02D13/0207 , F02D41/042 , F02D41/221 , F02D2041/2055 , F02D2041/227 , Y02T10/18
Abstract: A system according to the principles of the present disclosure includes a switching period module and at least one of a valve lift control module and a start-stop control module. The switching period module determines a switching period that elapses as a valve lift actuator of an engine switches between a first valve lift position and a second valve lift position that is different than the first lift position. The switching period begins when a measured position of the valve lift actuator corresponds to the first lift position and the switching period ends when the measured position of the valve lift actuator corresponds to the second lift position. The valve lift control module controls the valve lift actuator based on the switching period. The start-stop control module determines whether to automatically stop the engine based on the switching period.
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公开(公告)号：US09856758B2
公开(公告)日：2018-01-02
申请号：US14942250
申请日：2015-11-16
Applicant: Hyundai Motor Company
Inventor： You Sang Son , Kyoung Pyo Ha , Back Sik Kim
CPC classification number: F01L1/344 , F01L1/34 , F01L1/356 , F01L13/0015 , F01L13/0036 , F01L13/0047 , F01L2001/0473 , F01L2001/0537 , F01L2013/0052 , F01L2013/103 , F01L2820/04
Abstract: A continuously variable valve timing apparatus may include a camshaft, a first and a second cam portions of which two cams are formed thereto, of which the camshaft is inserted thereinto and of which relative phase angles with respect to the camshaft are variable, a first and a second inner brackets transmitting rotation of the camshaft to the first and second cam portions respectively, a first and a second slider housings of which the first and second inner brackets are rotatably inserted thereinto respectively and of which relative positions with respect to the camshaft are variable, a control shaft connected with the slider housings and a control portion connected with the control shaft and selectively changing the positions of the inner brackets.
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