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公开(公告)号：US20170037747A1
公开(公告)日：2017-02-09
申请号：US15219902
申请日：2016-07-26
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , DENSO CORPORATION
Inventor： Yu YOKOYAMA , Haruhito FUJIMURA , Yoshiki ENDO , Keisuke HOTTA
IPC: F01L1/344
CPC classification number: F01L1/3442 , F01L1/047 , F01L1/46 , F01L2001/34433 , F01L2001/3445 , F01L2250/02 , F01L2800/17
Abstract: In a variable valve actuation apparatus for an internal combustion engine, a rotor of a variable valve timing mechanism is fixed to one end of a camshaft by a plurality of bolts. An oil control valve configured to control hydraulic pressure that acts on the rotor is fixed to the rotor by one or some of the plurality of bolts. For this reason, by releasing fastening of the bolt that fixes the oil control valve to the rotor among the plurality of bolts that fix the rotor to the one end of the camshaft, the oil control valve is allowed to be removed from the rotor while the rotor is fixed to the camshaft. Therefore, it is not required to perform positioning for fixing the rotor to the camshaft at the time of replacement of the oil control valve.
Abstract translation: 在用于内燃机的可变气门致动装置中，可变气门正时机构的转子通过多个螺栓固定在凸轮轴的一端。 构造成控制作用于转子的液压的油控制阀通过多个螺栓中的一个或一些固定到转子。 为此，通过在将转子固定到凸轮轴的一端的多个螺栓中释放将油控制阀固定到转子上的螺栓的紧固，允许油控制阀从转子上移除，同时 转子固定在凸轮轴上。 因此，在更换油控阀时，不需要进行将转子固定在凸轮轴上的定位。
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Patent Agency Ranking
公开(公告)号：US20170122136A1
公开(公告)日：2017-05-04
申请号：US15298654
申请日：2016-10-20
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Toshiyuki YANO , Yu YOKOYAMA , Toru SAKUMA , Yuta NISHIMURA , Atsuhisa TAMANO
CPC classification number: F01L1/34 , F01L1/04 , F01L1/053 , F01L1/185 , F01L1/2405 , F01L1/267 , F01L13/0036 , F01L2001/0476 , F01L2013/0052 , F01L2013/101 , F01L2105/00
Abstract: A variable valve mechanism includes a first cam unit including cams configured to drive an intake valve on a first side in a first cylinder; a first sliding mechanism configured to slide the first cam unit such that the first cam unit is switched between two positions to select any one of the cams; a second cam unit including cams configured to drive an intake valve on a second side in the first cylinder, cams configured to drive an intake valve on the first side in a second cylinder, and cams configured to drive an intake valve on the second side in the second cylinder; and a second sliding mechanism configured to slide the second cam unit such that the second cam unit is switched among three positions to select any one of the cams for each of the intake valves.
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公开(公告)号：US20170122141A1
公开(公告)日：2017-05-04
申请号：US15297351
申请日：2016-10-19
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yuta NISHIMURA , Atsuhisa TAMANO , Yu YOKOYAMA , Toshiyuki YANO , Toru SAKUMA
IPC: F01L1/344 , F16K31/524
CPC classification number: F01L1/344 , F01L1/185 , F01L1/267 , F01L1/46 , F01L2001/0473 , F01L2001/0537 , F01L2001/34496 , F01L2013/0052 , F01L2013/101 , F01L2105/00
Abstract: In a variable valve mechanism, a guide groove includes guide portions provided on respective side surfaces of the guide groove in a width direction, the guide portions projecting so as to face each other; a cam unit is slid toward a first side by relatively moving a shift pin toward a second side with use of the guide portion on the first side, and the cam unit is slid toward the second side by relatively moving the shift pin toward the first side with use of the guide portion on the second side; the guide portion on the first side is provided in an immovable piece, and the guide portion on the second side is provided in a movable piece; the movable piece is displaceable between a first position and a second position: and a first urging member configured to urge the movable piece toward the first position is provided.
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公开(公告)号：US20180179921A1
公开(公告)日：2018-06-28
申请号：US15823765
申请日：2017-11-28
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Toshiyuki YANO , Yu YOKOYAMA , Yuta NISHIMURA , Atsuhisa TAMANO , Soichiro SUGA
CPC classification number: F01L13/0036 , F01L1/053 , F01L1/08 , F01L1/185 , F01L1/2405 , F01L2001/0537 , F01L2001/34496 , F01L2013/0052 , F01L2013/0078 , F01L2013/101 , F01L2105/00 , F01L2810/00
Abstract: For example, two intake valves for each cylinder each are driven by a selected one of cams via a corresponding rocker arm. Each rocker arm includes a support portion and a pressing portion (distal end portion). The support portion is rockably supported by a cylinder head. The pressing portion is configured to press a stem of the corresponding intake valve. The support portion of one of the rocker arms deviates to one side in an axis X direction (cam axial direction) with respect to the distal end portion. The support portion of the other one of the rocker arms deviates to the other side in the axis X direction with respect to the distal end portion.
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公开(公告)号：US20180179920A1
公开(公告)日：2018-06-28
申请号：US15830088
申请日：2017-12-04
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yu YOKOYAMA , Atsuhisa TAMANO , Toshiyuki YANO , Soichiro SUGA , Yuta NISHIMURA
CPC classification number: F01L1/053 , F01L1/185 , F01L1/20 , F01L13/0036 , F01L2001/0473 , F01L2001/0537 , F01L2013/0052 , F01L2013/101 , F01L2105/00 , F01L2810/02
Abstract: A variable valve mechanism includes a camshaft and a cam unit. Internal spline teeth provided at an inner periphery of a sleeve of the cam unit are in mesh with external spline teeth provided at an outer periphery of the camshaft. An engaging portion is provided at one of the inner periphery of the sleeve and the outer periphery of the camshaft, and is configured to retractably project toward the other one of the inner periphery of the sleeve and the outer periphery of the camshaft. A latching portion is provided at the other one of the inner periphery of the sleeve and the outer periphery of the camshaft. The sleeve has a through-hole that is provided at the same position in a circumferential direction as the engaging portion to supply the inner periphery of the sleeve with lubricating oil.
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公开(公告)号：US20170122140A1
公开(公告)日：2017-05-04
申请号：US15334583
申请日：2016-10-26
Applicant: DENSO CORPORATION , NIPPON SOKEN, INC. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Shota TODA , Shuhei OE , Toshiki FUJIYOSHI , Haruhito FUJIMURA , Yu YOKOYAMA
CPC classification number: F01L1/3442 , F01L1/356 , F01L2001/3443 , F01L2001/34436 , F01L2001/34443 , F01L2001/34486 , F01L2201/00 , F01L2800/14 , F01L2820/041 , F02D13/0203
Abstract: A control device has two modes as control modes of an electric power supply to an electromagnetic solenoid, which are used when a first determining unit determines that a difference between a sensed value of a phase and a target value of the phase exceeds a permissible range. One of the modes is a special mode that is used when a second determining unit determines that the sensed value of the phase reaches a threshold value. Another one of the modes is a normal mode that is used when the second determining unit determines that the sensed value of the phase does not reach the threshold value. In the special mode, the control device controls supply of the electric power to the electromagnetic solenoid in such a manner that an opening degree of an advancing port is larger than the opening degree of the advancing port in the normal mode.
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