公开(公告)号：US08770160B2

公开(公告)日：2014-07-08

申请号：US12238845

申请日：2008-09-26

Applicant: Hayato Maehara ,  Yasushi Fujimoto

Inventor： Hayato Maehara ,  Yasushi Fujimoto

IPC: F01L9/02 ,  F01L1/14 ,  F02B67/04 ,  F02B61/02 ,  F01L1/18 ,  F16D25/0638 ,  F16D25/10 ,  F16D21/06 ,  F01L13/00 ,  F01L1/02 ,  F01L1/053 ,  F16H61/00 ,  F01L1/20

CPC classification number: F01L1/182 ,  F01L1/022 ,  F01L1/143 ,  F01L1/20 ,  F01L13/0005 ,  F01L2001/0535 ,  F01L2001/0537 ,  F01L2105/00 ,  F01L2810/02 ,  F02B61/02 ,  F02B67/04 ,  F16D21/06 ,  F16D25/0638 ,  F16D25/10 ,  F16D2021/0661 ,  F16H61/0003 ,  F16H61/0009

Abstract: There is provided an engine for a small vehicle where driven sprockets, around which a cam chain for transmitting power from a crankshaft is wound, are provided at one end of camshafts that form a part of a valve system provided with hydraulic valve-operation mode changing mechanisms; and a valve-moving hydraulic pressure control device, which controls hydraulic pressure applied to the valve-operation mode changing mechanisms, is provided in the engine body. In the engine, it is possible to increase the degree of freedom in disposing the oil passage between the valve-operation mode changing mechanism and the valve-moving hydraulic pressure control device while avoiding the increase in the number of parts and assembly man-hours. A valve-moving hydraulic pressure control device is mounted on the side surface of the engine body on the side opposite to a cam chain in an axial direction of a camshaft.

Abstract translation: 提供一种用于小型车辆的发动机，其中形成作为设置有液压阀操作模式改变的阀系统的一部分的凸轮轴的一端处设置有用于传递来自曲轴的动力的凸轮链的从动链轮 机制; 并且在发动机主体中设置有控制施加到阀操作模式改变机构的液压的阀移动液压控制装置。 在发动机中，可以提高在阀操作模式切换机构与阀移动液压控制装置之间设置油路的自由度，同时避免零件数量的增加和装配工时。 阀移动液压控制装置安装在发动机主体的与凸轮轴的轴向相反侧的相反侧的侧面上。

公开(公告)号：US08079330B2

公开(公告)日：2011-12-20

申请号：US12079375

申请日：2008-03-26

Applicant: Hayato Maehara ,  Shinji Saito ,  Takaaki Tsukui

Inventor： Hayato Maehara ,  Shinji Saito ,  Takaaki Tsukui

IPC: F02B75/18

CPC classification number: F01L1/143 ,  F01L1/0532 ,  F01L13/0005 ,  F01L2001/0537 ,  F01L2001/3443 ,  F01L2001/3444 ,  F01L2013/001 ,  F01L2800/08

Abstract: A multicylinder engine for a motorcycle includes a valve actuation mechanism having a hydraulically-operated valve pausing mechanism for holding at least one of an intake valve and an exhaust valve of selected cylinders in a suspended state. The valve actuation mechanism operates the intake valve and the exhaust valve, and controls flow of oil through an oil passage which introduces working oil to the valve pausing mechanism from a hydraulic-pressure control device. Air-bleeding holes are formed in the cylinder head. The air-bleeding holes are fluidly connected with portions of the oil passages that are located at a highest level in the oil passages while the motorcycle is parked in an inclined state with its side stand down.

Abstract translation: 用于摩托车的多缸发动机包括具有液压操作的阀暂停机构的阀致动机构，用于保持处于暂停状态的所选气缸的进气门和排气门中的至少一个。 阀致动机构操作进气阀和排气阀，并且控制油通过从油压控制装置将工作油引入阀暂停机构的油路的流动。 气缸盖中形成排气孔。 排气孔与位于油路中最高位置的油路部分流体连接，同时摩托车以倾斜状态停放在侧面停止时。

公开(公告)号：US08051814B2

公开(公告)日：2011-11-08

申请号：US12035130

申请日：2008-02-21

Applicant: Taku Hirayama ,  Hayato Maehara ,  Takaaki Tsukui

Inventor： Taku Hirayama ,  Hayato Maehara ,  Takaaki Tsukui

IPC: F01L1/34

CPC classification number: F01L13/0005 ,  F01L2001/3443 ,  F02D13/06

Abstract: A simpler configuration of a mechanism for stopping intake/exhaust valves opened/closed by a valve opening/closing mechanism of a rocker arm. An engine E includes an exhaust valve for opening/closing an exhaust port of an exhaust path with a first exhaust valve spring for energizing the exhaust valve in a valve closing direction. An exhaust valve drive cam is rotated in correspondence with the rotation of an engine crankshaft. A rocker arm is swingably provided between the exhaust valve and the exhaust valve drive cam with one end that abuts on the exhaust valve drive cam being pressed according to rotation of the exhaust valve drive cam and swinging to press the exhaust valve by a press member at the other end to move to the open side. An exhaust valve stopping mechanism is provided between the press member of the rocker arm and the exhaust valve.

Abstract translation: 用于停止由摇臂的开阀/关闭机构打开/关闭的进/排气门的机构的更简单的构造。 发动机E包括排气门，用于利用第一排气阀弹簧来打开/关闭排气通道的排气口，用于在关闭方向上使排气阀通电。 排气门驱动凸轮与发动机曲轴的旋转相对应地旋转。 在排气门和排气门驱动凸轮之间可摆动地设置摇臂，一端靠着排气门驱动凸轮而被按压，该排气门驱动凸轮根据排气门驱动凸轮的旋转而被按压，并且通过按压构件将排气阀按压 另一端移动到开放的一边。 排气门止动机构设置在摇臂的推压构件与排气阀之间。

公开(公告)号：US07934483B2

公开(公告)日：2011-05-03

申请号：US12154698

申请日：2008-05-27

Applicant: Hayato Maehara ,  Shinji Saito ,  Kenichiro Nakamura ,  Masaji Narushima

Inventor： Hayato Maehara ,  Shinji Saito ,  Kenichiro Nakamura ,  Masaji Narushima

IPC: F02B75/22

CPC classification number: G01L23/221 ,  F01L1/143 ,  F01L13/0031 ,  F02B61/02 ,  F02B77/085 ,  F02D35/027 ,  F02D2400/21

Abstract: A motorcycle engine includes a crankcase housing a crankshaft, and a transmission unit therein, a cylinder block disposed above the crankcase, a cylinder head disposed above the cylinder block, and an intake system arranged behind the cylinder head, and a knock sensor arranged on an upper surface of the crankcase. The knock sensor is arranged behind the cylinder head, and disposed between the intake system and the cylinder block, such that the knock sensor does not restrict arrangement of additional functional parts of the engine on an upper surface of the crankcase. The knock sensor is substantially surrounded and protected by the intake system, the cylinder head, the cylinder block and the crankcase.

Abstract translation: 摩托车发动机包括容纳曲轴的曲轴箱和其中的传动单元，设置在曲轴箱上方的气缸体，设置在气缸体上方的气缸盖和布置在汽缸盖后面的进气系统和布置在气缸盖上的爆震传感器 曲轴箱的上表面。 爆震传感器布置在气缸盖的后面，并且设置在进气系统和气缸体之间，使得爆震传感器不会限制发动机的附加功能部件在曲轴箱的上表面上的布置。 敲击传感器被进气系统，气缸盖，气缸体和曲轴箱基本上包围和保护。

公开(公告)号：US07210454B2

公开(公告)日：2007-05-01

申请号：US11220859

申请日：2005-09-07

Applicant: Hayato Maehara ,  Shinji Saito ,  Kazuhito Hotta ,  Takaaki Tsukui

Inventor： Hayato Maehara ,  Shinji Saito ,  Kazuhito Hotta ,  Takaaki Tsukui

IPC: F02D9/08 ,  F02M7/00

CPC classification number: F02D13/0203 ,  F01L1/14 ,  F01L1/143 ,  F01L1/205 ,  F01L13/0005 ,  F02B61/02 ,  F02B2275/16 ,  F02D9/02 ,  F02D9/105 ,  F02D9/1095 ,  F02D11/105 ,  F02D13/0257 ,  F02D13/06 ,  F02D17/02 ,  F02D41/0082 ,  F02D41/0087 ,  F02D2011/102 ,  F02D2041/0012 ,  Y02T10/18

Abstract: An internal combustion engine having cylinders capable of selectively resting during engine operation is capable of eliminating step increases in engine output when the number of operative cylinders is changed. The internal combustion engine includes a plurality of cylinders divided into two or more groups, at least some of the cylinders being restable. A throttle valve of each of the cylinders is independently operable on the basis of the group to which the cylinder belongs, and the number of resting cylinders is controlled according to the throttle grip opening. The throttle valve opening is different between the groups, except for the full opening condition and the full closure condition of the throttle valve, and an ECU is provided for opening the throttle valve of the next cylinder group before the throttle valve opening of the former cylinder group reaches the full opening condition.

Abstract translation: 具有能够在发动机运转期间选择性停止的气缸的内燃机能够消除在工作气缸的数量变化时发动机输出的增加。 内燃机包括分成两组或更多组的多个气缸，至少一些汽缸是可更换的。 每个气缸的节流阀基于气缸所属的组独立地可操作，并且根据节气门手柄开度来控制静止气缸的数量。 除了节气门的全开状态和完全关闭状态之外，各组之间的节气门开度是不同的，并且在前缸的节气门打开之前提供用于打开下一气缸组的节流阀的ECU 组达到全开状态。

公开(公告)号：US20060231059A1

公开(公告)日：2006-10-19

申请号：US11391080

申请日：2006-03-28

Applicant: Masatoshi Suzuki ,  Hayato Maehara ,  Satosho Iijima

Inventor： Masatoshi Suzuki ,  Hayato Maehara ,  Satosho Iijima

IPC: F02B75/32

CPC classification number: F02B75/32 ,  F16F15/26 ,  Y10T74/2121 ,  Y10T74/2183

Abstract: An internal combustion engine includes a connecting rod that connects a crankpin and a piston. The connecting rod has first and second connecting rods, and a guide piston is disposed at a connecting portion between the first and second connecting rods. Deformed portions are formed on a lower end portion of a guide piston and on a balancer weight portion of a crankshaft in order to reduce the whole length of the connecting rod, whereby a bottom dead center of the guide piston is set to a lower position. The engine has improved thermal efficiency by reducing the distance between the crank portion and the piston, increasing the speed of behavior of the piston at a position near a top dead center to reduce thermal energy loss, and preventing generation of knocking.

Abstract translation: 内燃机包括连接曲轴销和活塞的连杆。 连杆具有第一和第二连杆，并且导向活塞设置在第一和第二连接杆之间的连接部分处。 变形部分形成在导向活塞的下端部分和曲轴的平衡重重体部分上，以便减小连杆的整个长度，由此将导向活塞的下止点设定在较低位置。 发动机通过减小曲柄部分和活塞之间的距离来提高热效率，增加活塞在靠近上止点的位置的行为速度，以减少热能损失，并防止产生爆震。

公开(公告)号：US20050133004A1

公开(公告)日：2005-06-23

申请号：US10956031

申请日：2004-10-04

Applicant: Hayato Maehara ,  Takaaki Tsukui ,  Kazuhito Hotta

Inventor： Hayato Maehara ,  Takaaki Tsukui ,  Kazuhito Hotta

IPC: F02F1/42 ,  F02D9/00 ,  F02D9/02 ,  F02D9/10 ,  F02D11/10 ,  F02D17/02 ,  F02D41/00 ,  F02D41/34 ,  F02M35/10 ,  F02D1/00

CPC classification number: F02D9/105 ,  F02D9/1065 ,  F02D9/1095 ,  F02D11/10 ,  F02D17/02 ,  F02D41/008 ,  F02D2009/0279 ,  F02M35/10032 ,  F02M35/10085 ,  F02M35/10216

Abstract: In a multi-cylinder internal combustion engine having throttle valves to be opened and closed by electric motors, output control is enabled in various ways according to the state of usage of an object to be driven by the multi-cylinder internal combustion engine with a simple structure with the scope of application of shared components being expanded to reduce the cost. In addition, a throttle body assembly is downsized in the direction of the arrangement of the cylinders. A multi-cylinder internal combustion engine includes a predetermined number of cylinders, a throttle body assembly including the throttle bodies formed with intake-air channels and throttle valves. The respective throttle valves are opened and closed by the electric motors provided independently for each throttle valve. Air-intake ports of the first and fourth cylinders are formed so as to approach a center plane in the direction of the arrangement as they approach entrances.

Abstract translation: 在具有由电动机打开和关闭的节流阀的多气缸内燃机中，可以根据多缸内燃机驱动的物体的使用状态以各种方式实现输出控制 共享组件的应用范围扩大的结构降低了成本。 此外，节气门体组件在气缸的布置方向上被小型化。 包括预定数量的气缸的多气缸内燃机，包括形成有进气通道和节流阀的节气门体的节气门体组件。 相应的节流阀由为每个节气门独立设置的电动机打开和关闭。 形成第一和第四气缸的进气口，使其在进入入口时在布置方向上接近中心平面。

公开(公告)号：US08235160B2

公开(公告)日：2012-08-07

申请号：US12239297

申请日：2008-09-26

Applicant: Atsushi Ogasawara ,  Hayato Maehara ,  Toshiyuki Sato ,  Yasushi Fujimoto

Inventor： Atsushi Ogasawara ,  Hayato Maehara ,  Toshiyuki Sato ,  Yasushi Fujimoto

IPC: F16H61/688 ,  F16H61/32 ,  B60K5/04

CPC classification number: F16H61/688 ,  B60Y2200/126 ,  F02B61/02 ,  F16H61/0009 ,  F16H61/32 ,  Y10T477/6936

Abstract: A power unit for a small type vehicle wherein a speed change mechanism is disposed on a lateral side of a crankcase on the side of one end of a crankshaft. A valve operation controller for controlling the operations of valve operation mode change mechanisms and a speed change controller for controlling a speed change operation of a speed change mechanism are attached to an engine body, to lay out the valve operation controller and the speed change controller in good balance of center of gravity so as to prevent the center of gravity of the power unit from being deviated to one side. The valve operation controller and the speed change controller being attached to the engine body on the opposite side of the clutch device with respect to a vehicle body center line in a direction along the axis of the crankshaft.

Abstract translation: 一种用于小型车辆的动力单元，其中变速机构设置在曲轴的一端侧的曲轴箱的侧面上。 用于控制阀操作模式改变机构的操作的阀操作控制器和用于控制变速机构的变速操作的变速控制器被安装在发动机主体上，以将阀操作控制器和变速控制器布置在 重心平衡良好，防止动力单元的重心偏离一侧。 阀操作控制器和变速控制器沿着沿着曲轴的轴线的方向相对于车身中心线被安装到离合器装置的相对侧上的发动机主体。

公开(公告)号：US08020531B2

公开(公告)日：2011-09-20

申请号：US11902920

申请日：2007-09-26

Applicant: Hayato Maehara ,  Kazuhito Hotta ,  Takaaki Tsukui ,  Masanobu Urabe

Inventor： Hayato Maehara ,  Kazuhito Hotta ,  Takaaki Tsukui ,  Masanobu Urabe

IPC: F02D11/10

CPC classification number: F02D9/1095 ,  F02D9/107 ,  F02D11/10 ,  F02M35/10032 ,  F02M35/10111 ,  F02M35/10216 ,  F02M35/10255 ,  F02M35/116

Abstract: An electronic throttle control device in a internal combustion engine for a vehicle can be improved in maintainability and can be reduced in size. An electronic throttle control device in a V-type internal combustion engine for a vehicle has a fuel injection valve and throttle valves in an intake passage. A throttle driving motor controls the opening angle of each throttle valve according to the amount of operation of a throttle grip performed by an operator of the vehicle. The throttle driving motor is located outside a region surrounded by the throttle bodies that are respectively connected to all of intake ports as viewed in plan.

Abstract translation: 可以提高车辆用内燃机中的电子节气门调节装置的可维修性，并且可以减小尺寸。 用于车辆的V型内燃机中的电子节气门控制装置在进气通道中具有燃料喷射阀和节流阀。 节气门驱动电动机根据车辆操作者执行的节气门夹头的操作量来控制各节气门的开度。 节气门驱动电动机位于由节气门体围绕的区域的外侧，分别与计划中的所有进气口连接。

公开(公告)号：US07913657B2

公开(公告)日：2011-03-29

申请号：US12032232

申请日：2008-02-15

Applicant: Hayato Maehara ,  Takaaki Tsukui ,  Toru Gunji ,  Shinji Saito

Inventor： Hayato Maehara ,  Takaaki Tsukui ,  Toru Gunji ,  Shinji Saito

IPC: F01L1/34

CPC classification number: F01L1/047 ,  F01L1/356 ,  F01L2001/0537 ,  F01L2001/34496 ,  Y10T74/2101

Abstract: In a variable valve timing mechanism, a valve-lifting cam member is fitted, slidably in the circumferential direction, onto a camshaft that is driven to rotate in synchronization with a crankshaft of a four-stroke cycle internal combustion engine. An eccentric collar is set between a driving collar fixed on the camshaft and the valve-lifting cam member. A driving projection is formed in the driving collar and engages with one of sandwiching portions of the eccentric collar. A driven protrusion is formed in the valve-lifting cam member and engages with another one of the sandwiching portions of the eccentric collar. A linkage mechanism includes the eccentric collar, the drive, and the driven protrusions. The variable valve timing mechanism adjusts the timing of opening and closing of the valve while the rotational phase of the valve-lifting cam member is cyclically varied relative to the camshaft by the eccentricity of the eccentric collar.

Abstract translation: 在可变气门正时机构中，气门提升凸轮构件在圆周方向上可滑动地装配到与四冲程循环内燃机的曲轴同步地被驱动旋转的凸轮轴上。 偏心轴环设置在固定在凸轮轴上的驱动轴环和气门提升凸轮构件之间。 驱动凸缘形成在驱动轴环中并与偏心轴环的夹层部分中的一个接合。 驱动突起形成在提升凸轮构件中并与偏心轴环的另一个夹紧部分接合。 连杆机构包括偏心轴环，驱动器和从动突起。 可变气门正时机构调节阀的打开和关闭的时间，同时通过偏心轴环的偏心度，提升凸轮构件的旋转相位相对于凸轮轴循环变化。