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公开(公告)号：US10202876B2
公开(公告)日：2019-02-12
申请号：US15347183
申请日：2016-11-09
申请人： OTICS CORPORATION
摘要： A lash adjuster includes a bottomed cylindrical body and a cylindrical plunger reciprocably inserted into the body and having a bottom wall and a peripheral wall. The plunger has a low-pressure chamber. The peripheral wall of the plunger includes an annular band portion abutting against an upper part of a peripheral wall of the body. The peripheral wall of the plunger has a plurality of plunger oil holes located below the band portion. The plunger oil holes include respective lower ends defining a level of the oil stored in the low-pressure chamber. The plurality of plunger oil holes are located at a common height position of the peripheral wall of the plunger coming close to the band portion.
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公开(公告)号：US10072534B2
公开(公告)日：2018-09-11
申请号：US15083788
申请日：2016-03-29
申请人： OTICS CORPORATION
发明人： Hiroyuki Suzuki
CPC分类号： F01L1/2405 , F01L1/24 , F01L2103/00
摘要： A lash adjuster includes a body which is cylindrical in shape and a plunger. The plunger is reciprocably inserted into the body and has an interior in which a low-pressure chamber is defined. The plunger has a bottom wall defining a high-pressure chamber in conjunction with the body between them and a peripheral wall formed with a plunger oil hole through which an operating oil is fed into the low-pressure chamber. The bottom wall is formed with a valve hole through which the operating oil stored in the low-pressure chamber is allowed to flow into the high-pressure chamber. The plunger has a pocket provided on the peripheral wall so as to be deformed toward the low-pressure chamber and inclined in an upward direction, defining the plunger oil hole.
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公开(公告)号：US10221728B2
公开(公告)日：2019-03-05
申请号：US15480857
申请日：2017-04-06
申请人： OTICS CORPORATION
发明人： Hiroyuki Suzuki , Akira Sugiura , Koki Yamaguchi
摘要： A variable valve mechanism includes an input arm that axially supports a roller pressed by a cam, via a roller pin, an output arm that drives a valve when swinging, a switch device that switches the variable valve mechanism between a coupled state where the both arms are coupled and an uncoupled state where the arms are uncoupled from each other, and a lost motion spring that biases the roller against the cam when in the uncoupled state. The lost motion spring includes an extended portion extending in an inter-arm clearance between the input arm and the output arm. An end of the roller pin projects from the input arm into the inter-arm clearance by such a length that the end is accommodated in the inter-arm clearance and that allows a spring retaining portion to be formed in the end. The spring retaining portion is formed in the end.
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公开(公告)号：US10167745B2
公开(公告)日：2019-01-01
申请号：US15419836
申请日：2017-01-30
申请人： OTICS CORPORATION
发明人： Hiroyuki Suzuki , Akira Sugiura
摘要： A variable valve mechanism of an internal combustion engine includes an outer arm, an inner arm, a switching device that switches between a coupled state and a non-coupled state, and a lost motion spring. The lost motion spring has an extending portion extending from the outside of the space to the inside of the space. The extending portion has a contact portion that is in contact with the inner arm in the space and being configured to swing in conjunction with swinging of the inner arm. A through-hole is formed in a vertically intermediate portion of the outer arm such that connecting portions are provided at vertically opposite sides of the through-hole, and a portion of the extending portion, a swinging amount of which is smaller than that of the contact portion, passes through the through-hole that allows the portion to swing therein.
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公开(公告)号：US20170268386A1
公开(公告)日：2017-09-21
申请号：US15419836
申请日：2017-01-30
申请人： OTICS CORPORATION
发明人： Hiroyuki Suzuki , Akira Sugiura
CPC分类号： F01L1/22 , F01L1/181 , F01L1/185 , F01L1/462 , F01L13/0005 , F01L13/0036 , F01L2001/186 , F01L2001/467 , F01L2105/00 , F01L2820/02
摘要： A variable valve mechanism of an internal combustion engine includes an outer arm, an inner arm, a switching device that switches between a coupled state and a non-coupled state, and a lost motion spring. The lost motion spring has an extending portion extending from the outside of the space to the inside of the space. The extending portion has a contact portion that is in contact with the inner arm in the space and being configured to swing in conjunction with swinging of the inner arm. A through-hole is formed in a vertically intermediate portion of the outer arm such that connecting portions are provided at vertically opposite sides of the through-hole, and a portion of the extending portion, a swinging amount of which is smaller than that of the contact portion, passes through the through-hole that allows the portion to swing therein.
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公开(公告)号：US09080469B2
公开(公告)日：2015-07-14
申请号：US14175610
申请日：2014-02-07
申请人： OTICS CORPORATION
发明人： Hiroyuki Suzuki , Hideki Oka , Kiyoshi Masegi
CPC分类号： F01L1/24 , F01L1/2405 , F01L1/255 , F01L2001/2427 , F01L2001/256
摘要： A lash adjuster includes a plunger having a bottom wall with a valve hole and a peripheral wall having an oil passage hole and an inner periphery formed with a recessed groove, the plunger defining a high-pressure chamber between the bottom wall and a body, and a partitioning member having an oil passage end located above the oil passage hole. The partitioning member has an oil-passage defining portion located opposite the recessed groove and defining an oil passage between itself and a groove face of the recessed groove. The partitioning member defines a low-pressure chamber reserving a hydraulic fluid flowing through the oil passage hole, the oil passage and the oil passage end. The low-pressure chamber causes the reserved hydraulic fluid to flow through the valve hole into the high-pressure chamber. The partitioning member is formed into a cylindrical shape and extends in an up-down direction without any stepped part.
摘要翻译： 间隙调节器包括具有阀孔的底壁和具有油通孔的周壁和形成有凹槽的内周的柱塞，柱塞在底壁和主体之间限定高压室，以及 具有位于所述油通孔上方的油路端的分隔构件。 分隔构件具有与凹槽相对设置的油通道限定部分，并且在其自身和凹槽的凹槽面之间限定油通道。 分隔构件限定了储存流过油通道孔，油路和油路端的液压流体的低压室。 低压室使保留的液压流体通过阀孔流入高压室。 分隔构件形成为圆柱形，并且在上下方向上延伸而没有任何台阶部分。
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