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公开(公告)号：US20170122136A1
公开(公告)日：2017-05-04
申请号：US15298654
申请日：2016-10-20
发明人： Toshiyuki YANO , Yu YOKOYAMA , Toru SAKUMA , Yuta NISHIMURA , Atsuhisa TAMANO
CPC分类号： F01L1/34 , F01L1/04 , F01L1/053 , F01L1/185 , F01L1/2405 , F01L1/267 , F01L13/0036 , F01L2001/0476 , F01L2013/0052 , F01L2013/101 , F01L2105/00
摘要： 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：US20180179921A1
公开(公告)日：2018-06-28
申请号：US15823765
申请日：2017-11-28
发明人： Toshiyuki YANO , Yu YOKOYAMA , Yuta NISHIMURA , Atsuhisa TAMANO , Soichiro SUGA
CPC分类号： F01L13/0036 , F01L1/053 , F01L1/08 , F01L1/185 , F01L1/2405 , F01L2001/0537 , F01L2001/34496 , F01L2013/0052 , F01L2013/0078 , F01L2013/101 , F01L2105/00 , F01L2810/00
摘要： 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
发明人： Yu YOKOYAMA , Atsuhisa TAMANO , Toshiyuki YANO , Soichiro SUGA , Yuta NISHIMURA
CPC分类号： F01L1/053 , F01L1/185 , F01L1/20 , F01L13/0036 , F01L2001/0473 , F01L2001/0537 , F01L2013/0052 , F01L2013/101 , F01L2105/00 , F01L2810/02
摘要： 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：US20160319705A1
公开(公告)日：2016-11-03
申请号：US15030417
申请日：2015-01-22
CPC分类号： F01L1/08 , F01L1/04 , F01L1/267 , F01L13/0036 , F01L2001/0473
摘要： An adjustable valve device includes: a first cam portion penetrated by a camshaft, rotating with the camshaft, and including an elongated hole formed therein; a U or L shaped second cam portion supported by the first cam portion so as to swing to move between a first state and a second state; a stopper pin fixed to the second cam portion and penetrating through the elongated hole; a biasing member biasing the stopper pin so that the second cam portion becomes in the first state; a lock mechanism locking the second cam portion only when the second cam portion is in the first state; and a cam follower exerting a reactive force so that the second cam portion becomes in the second state in a state where a lock of the second cam portion is released, wherein the reactive force is greater than a biasing force of the biasing member.
摘要翻译： 一种可调节阀装置，包括：由凸轮轴穿过的凸轮轴，与凸轮轴一起旋转并包括形成在其中的细长孔; U形或L形的第二凸轮部分，其被第一凸轮部分支撑以摆动以在第一状态和第二状态之间移动; 固定到第二凸轮部分并穿过细长孔的止动销; 偏置构件偏压止动销，使得第二凸轮部分变为第一状态; 仅当第二凸轮部处于第一状态时锁定第二凸轮部的锁定机构; 以及具有反作用力的凸轮从动件，使得第二凸轮部分在第二凸轮部分的锁定被解除的状态下变为第二状态，其中反作用力大于偏置构件的偏置力。
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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
发明人： Yuta NISHIMURA , Atsuhisa TAMANO , Yu YOKOYAMA , Toshiyuki YANO , Toru SAKUMA
IPC分类号： F01L1/344 , F16K31/524
CPC分类号： F01L1/344 , F01L1/185 , F01L1/267 , F01L1/46 , F01L2001/0473 , F01L2001/0537 , F01L2001/34496 , F01L2013/0052 , F01L2013/101 , F01L2105/00
摘要： 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：US20170152771A1
公开(公告)日：2017-06-01
申请号：US15365343
申请日：2016-11-30
发明人： Toshiyuki YANO , Yuu YOKOYAMA , Toru SAKUMA , Yuta NISHIMURA , Atsuhisa TAMANO
IPC分类号： F01L13/00
CPC分类号： F01L13/0036 , F01L1/185 , F01L1/2405 , F01L13/0015 , F01L13/0063 , F01L2001/0537 , F01L2001/34496 , F01L2013/0052 , F01L2013/101 , F01L2105/00 , F01L2800/06
摘要： A first swing arm of each cylinder is swung by a fixed cam of an intake camshaft, so as to operate a first intake valve according to a profile thereof. A second swing arm is swung by a second cam and its swing range is changed by a variable mechanism. Hereby, a lift amount of a second intake valve changes continuously. The second cam is selected from a plurality of cams on a cam piece provided around the intake camshaft.
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