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公开(公告)号：US20040091377A1
公开(公告)日：2004-05-13
申请号：US10443850
申请日：2003-05-23
发明人： Takuya Uryu , Yoshihiko Onishi
IPC分类号： F04B019/00
CPC分类号： F02M59/102 , F02M2200/02 , F04B1/0439
摘要： A high-pressure fuel pump of a simple construction is capable of distributing the position of contact between a tappet and a cam so as to improve durability of the tappet without causing seizure of a piston. A cylinder is arranged in a housing, and the piston is received in the cylinder for sliding reciprocation so that fuel is sucked into the cylinder and pressurized by the piston. The tappet is arranged inside one end of the housing for reciprocation, and contacts the cam, which rotates with a camshaft of an engine, so as transmit a driving force of the engine to the piston. A sleeve is arranged between the tappet and the housing, and clearance fitted to an outer peripheral surface of the tappet and an inner peripheral surface of the housing. The tappet is caused to rotate on its own axis by a frictional force generated between the cam and the tappet.
摘要翻译： 具有简单结构的高压燃料泵能够分配挺杆和凸轮之间的接触位置，从而提高挺杆的耐久性，而不会引起活塞的卡住。 气缸布置在壳体中，并且活塞容纳在气缸中用于滑动往复运动，使得燃料被吸入气缸并被活塞加压。 挺杆布置在壳体的一端内用于往复运动，并接触与发动机的凸轮轴一起旋转的凸轮，以将发动机的驱动力传递到活塞。 套筒布置在挺杆和壳体之间，并且间隙安装在挺杆的外周表面和壳体的内周表面上。 通过在凸轮和挺杆之间产生的摩擦力使得挺杆在其自身的轴线上旋转。
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公开(公告)号：US20030222154A1
公开(公告)日：2003-12-04
申请号：US10286849
申请日：2002-11-04
发明人： Yoshihiko Onishi , Takuya Uryu , Yuta Ichinose
IPC分类号： F02M047/02 , F02M061/00
CPC分类号： F02M59/366 , F02M59/102 , F02M59/44
摘要： A high pressure fuel supply apparatus 6 having: a plunger 161 reciprocating and sliding in a sleeve 160 of a high pressure fuel pump 16 so as to form a fuel pressurizing chamber 163 between the plunger 161 and the sleeve 160 to thereby discharge pressurized fuel; a tappet 164 reciprocated while abutting against the plunger 161; and a cam 100 abutting against the tappet 164 so as to reciprocate the tappet 164 and the plunger 161; wherein the tappet 164 has a recess portion 164a formed near a central portion of an abutment surface of the tappet 164 against the plunger 161.
摘要翻译： 一种高压燃料供给装置6，其具有：柱塞161，其在高压燃料泵16的套筒160中往复运动并滑动，以在柱塞161和套筒160之间形成燃料加压室163，从而排出加压燃料; 挺杆164在抵靠柱塞161的同时往复运动; 以及与挺杆164抵接以使挺杆164和柱塞161往复移动的凸轮100; 其中挺杆164具有在挺杆164抵靠柱塞161的邻接表面的中心部分附近形成的凹部164a。
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公开(公告)号：US20040206923A1
公开(公告)日：2004-10-21
申请号：US10678307
申请日：2003-10-06
发明人： Takuya Uryu , Yuta Ichinose , Yoshihiko Onishi , Kenji Nakao
IPC分类号： F16K031/02
CPC分类号： F16K31/0665
摘要： In a proportional solenoid valve, a solenoid main body includes a coil, a valve seat member having a seat portion, a valve element that is displaced in accordance with a current applied to the coil so as to be brought into and out of contact with the seat portion, and a valve guide portion that is arranged coaxially with the seat portion and guides the displacement of the valve element. The housing is attached to the solenoid main body so that a space is formed between the housing and the valve seat member. A seal member made of an elastic material is provided in the space between the housing and the valve seat member.
摘要翻译： 在比例电磁阀中，螺线管主体包括线圈，具有座部的阀座构件，阀元件，其根据施加到线圈的电流而移位，以便与 座部，以及与座部同轴配置并引导阀体的位移的阀引导部。 壳体附接到螺线管主体，从而在壳体和阀座构件之间形成空间。 在壳体和阀座构件之间的空间中设置由弹性材料制成的密封构件。
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公开(公告)号：US20030062085A1
公开(公告)日：2003-04-03
申请号：US10118906
申请日：2002-04-10
发明人： Yoshihiko Onishi , Takuya Uryu , Hiromichi Tsugami
IPC分类号： F16K031/12
CPC分类号： F04B1/0413 , F02M59/102 , F02M59/366 , F02M63/0225 , F02M2200/315 , F04B1/0426 , Y10T137/7834
摘要： A fuel supply apparatus capable of reducing the abrasion of a driving cam and a tappet without increasing the dimensions and weight of the apparatus. This fuel supply apparatus is provided with a tappet which has a pressure receiving surface contacting the driving cam of an engine. The tappet is provided at the part of a outer surface thereof which is in the vicinity of an outer circumference of the pressure receiving surface with a groove adapted to prevent the local concentration of stress on the tappet and having a V-shaped, semicircular or U-shaped cross section.
摘要翻译： 一种燃料供给装置，其能够在不增加装置的尺寸和重量的情况下减少驱动凸轮和挺杆的磨损。 该燃料供给装置设置有具有与发动机的驱动凸轮接触的受压面的挺杆。 挺杆设在其外表面的一部分，该外表面在压力接收表面的外圆周附近具有适于防止在挺杆上的局部应力集中并具有V形，半圆形或U形的凹槽 形截面。
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公开(公告)号：US20030221552A1
公开(公告)日：2003-12-04
申请号：US10286836
申请日：2002-11-04
发明人： Yoshihiko Onishi , Takuya Uryu , Yuta Ichinose
IPC分类号： F16J015/18
CPC分类号： F02M59/102 , F02B2275/14 , F02M37/0047 , F02M37/10 , F02M55/004 , F02M55/04 , F02M59/366 , F02M63/0225 , F02M2200/9015
摘要： A high pressure fuel supply apparatus 6 has a plunger 161 reciprocating and sliding in a sleeve 160 of a high pressure fuel pump 16 to form a fuel pressurizing chamber 163 between the plunger 161 and the sleeve 160 to discharge pressurized fuel; a bolt 180 forming a part of a housing of the high pressure fuel pump 16; and an oil seal 169 fixed to an inner wall surface of the bolt 180 by press fitting to slide on an outer circumferential wall of the plunger 161 in accordance with reciprocating motion of the plunger 161 to seal the fuel and lubricating oil; wherein the bolt 180 is formed so that a press-in load in a second half of a press-in stroke of the seal 169 is higher than that in a first half thereof in an abutment portion of the bolt 180 against the seal 169.
摘要翻译： 高压燃料供给装置6具有在高压燃料泵16的套筒160中往复运动并滑动的柱塞161，以在柱塞161和套筒160之间形成燃料加压室163，以排出加压燃料; 形成高压燃料泵16的壳体的一部分的螺栓180; 以及通过压配合固定到螺栓180的内壁表面的油封169，其根据柱塞161的往复运动而在柱塞161的外周壁上滑动以密封燃料和润滑油; 其中，螺栓180形成为使得密封件169的压入冲程的后半部分中的压入负载高于螺栓180抵靠密封件169的抵接部分的第一半部中的压入载荷。
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公开(公告)号：US20030059321A1
公开(公告)日：2003-03-27
申请号：US10195526
申请日：2002-07-16
发明人： Tatsuya Ikegami , Takuya Uryu
IPC分类号： F04B019/00
CPC分类号： F04B1/0439 , F04B1/0426
摘要： A tappet turning prevention structure for a fuel supply apparatus includes a piston defining a fuel pressurizing chamber within the housing. A tappet disposed at one end of the piston has accommodated in it a roller driven by a cam of an engine and a roller supporting pin for transmitting a force from the cam to the piston. The tappet is housed by a bracket which has one or two grooves in an inner surface of it for supporting the roller supporting pin at one or both ends. The number of parts can be decreased because the turning prevention pin for the tappet and the roller supporting pin is a single common pin, and therefore the need of controlling of the press-fit loads is eliminated because no process for thrusting the tappet turning prevention pin into the outer circumference of the tappet is involved.
摘要翻译： 用于燃料供给装置的挺杆转动防止结构包括在壳体内限定燃料加压室的活塞。 设置在活塞一端的挺杆容纳有由发动机的凸轮驱动的辊和用于将力从凸轮传递到活塞的辊支撑销。 挺杆由支架容纳，支架在其内表面上具有一个或两个凹槽，用于在一端或两端支撑滚子支撑销。 由于挺杆和滚子支撑销的转向防止销是单个公共销，所以可以减少部件数量，因此消除了对压配合负载的控制的需要，因为没有用于推动挺杆转向防止销 进入挺杆的外围是涉及到的。
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