公开(公告)号：US06505608B2

公开(公告)日：2003-01-14

申请号：US09812082

申请日：2001-03-20

申请人： Kenji Hiraku ,  Kenichiro Tokuo ,  Tadahiko Nogami ,  Kunihiko Takao ,  Hiroyuki Yamada ,  Yukio Takahashi ,  Atsuji Saito

发明人： Kenji Hiraku ,  Kenichiro Tokuo ,  Tadahiko Nogami ,  Kunihiko Takao ,  Hiroyuki Yamada ,  Yukio Takahashi ,  Atsuji Saito

IPC分类号： F02M3704

CPC分类号： F02D41/3845 ,  F02D2041/3881 ,  F02D2041/389 ,  F02D2200/0602 ,  F02D2250/14 ,  F02D2250/31 ,  F02M55/025 ,  F02M59/367 ,  F02M63/0295 ,  F02M69/465 ,  F02M2200/04 ,  F02M2200/31 ,  F04B49/243

摘要： A fuel supply system for a direct injection engine which has a variable capacity single cylinder plunger pump and two fuel rails. Offices are disposed at the upstream side inlets of both fuel rails, respectively. At the opposite sides to the inlet sides, the fuel rails are interconnected with each other by a connecting pipe. Using this fuel supply system, it is possible to increase a characterisitic frquency of the fuel columns, and to stabilize, suppress, and smooth out pressure pulsation in the fuel rails, thereby reducing uneven fuel injections into the cylinders. The system may have a cam which drives a plunger of a high pressure fuel pump to reciprocate once for every two combustions in two engine cylinders.

摘要翻译： 一种用于直喷发动机的燃料供应系统，其具有可变容量的单缸柱塞泵和两个燃料轨。 分别设置在两个燃料导轨的上游侧入口处。 在入口侧的相对侧，燃料导轨通过连接管相互连接。 利用这种燃料供给系统，能够提高燃料柱的特性，并且稳定化，抑制和平滑燃料轨中的压力脉动，从而减少对气缸的不均匀燃料喷射。 该系统可以具有驱动高压燃料泵的柱塞的凸轮，以在两个发动机气缸中的每两次燃烧中往复运动一次。

公开(公告)号：US5884597A

公开(公告)日：1999-03-23

申请号：US879610

申请日：1997-06-20

申请人： Kenji Hiraku ,  Tadahiko Nogami ,  Kenji Okuna ,  Kiyoshi Amou ,  Atsuji Saito ,  Atsuo Kishi

发明人： Kenji Hiraku ,  Tadahiko Nogami ,  Kenji Okuna ,  Kiyoshi Amou ,  Atsuji Saito ,  Atsuo Kishi

IPC分类号： F02M37/00 ,  F02M37/06 ,  F02M37/18 ,  F02M55/02 ,  F02M59/04 ,  F02M59/10 ,  F02M59/42 ,  F02M63/02 ,  F04B49/02 ,  F04B49/08 ,  F02N17/00

CPC分类号： F04B49/022 ,  F02M59/04 ,  F02M59/105 ,  F02M59/42 ,  F02M63/0225 ,  F04B49/08 ,  F04B2205/063 ,  F04B2205/18

摘要： A fuel feeding apparatus includes a pressure increasing piston system, in addition to a high pressure fuel pump, for further increasing the fuel pressure at the outlet of the high pressure fuel pump. For this purpose, a first piston provided in a first cylinder is moved in response to the pressure of fuel drawn up from a fuel tank and fed to the high pressure pump by a low pressure fuel feed pump, and a second piston provided in a second cylinder and having a diameter smaller than the diameter of the first piston is connected to the first piston and is moved together with the first piston for pressurizing fuel in the second cylinder communicating with the outlet of the high pressure fuel pump at the time of engine starting, and before the high pressure fuel pump is started. The first and second pistons then are automatically returned to their initial positions, respectively, after high pressure fuel pump is started, while the pressure of the highly pressurized fuel in the high pressure fuel pipe is maintained by a high pressure regulator, by designing the first and second cylinders, including the relative sizes of the respective pistons, so that a possible maximum pressure to which the fuel is increased by the piston system is set to a value lower than a preset high pressure value to be attained by the high pressure fuel pump.

摘要翻译： 燃料供给装置包括除了高压燃料泵之外的增压活塞系统，用于进一步增加高压燃料泵出口处的燃料压力。 为此，设置在第一气缸中的第一活塞响应于从燃料箱引出的燃料的压力而被移动，并通过低压燃料供给泵供给到高压泵，并且第二活塞设置在第二气缸 气缸，其直径小于第一活塞的直径，连接到第一活塞，并与第一活塞一起移动，用于在发动机启动时在与高压燃料泵的出口连通的第二气缸中加压燃料 并且在高压燃料泵启动之前。 然后，在高压燃料泵启动之后，第一和第二活塞分别自动返回到其初始位置，而高压燃料管中的高压燃料的压力由高压调节器维持，通过设计第一 以及包括相应活塞的相对尺寸的第二气缸，使得由活塞系统将燃料增加的可能的最大压力设定为低于由高压燃料泵达到的预设高压值的值 。

公开(公告)号：US06543424B1

公开(公告)日：2003-04-08

申请号：US09637679

申请日：2000-08-14

申请人： Shizuka Yamaguchi ,  Noboru Baba ,  Katsuyoshi Terakado ,  Arata Kagiyama ,  Hideki Machimura ,  Yukio Takahashi ,  Yoshinobu Ono ,  Kazuo Ojima ,  Masayoshi Kotaki ,  Hiroyuki Yamada ,  Atsuji Saito

发明人： Shizuka Yamaguchi ,  Noboru Baba ,  Katsuyoshi Terakado ,  Arata Kagiyama ,  Hideki Machimura ,  Yukio Takahashi ,  Yoshinobu Ono ,  Kazuo Ojima ,  Masayoshi Kotaki ,  Hiroyuki Yamada ,  Atsuji Saito

IPC分类号： F02M5944

CPC分类号： C23C28/044 ,  C23C8/80 ,  C23C28/048 ,  F02B2075/125 ,  F02M59/445 ,  F02M63/0225 ,  F04B1/122 ,  F04B1/141 ,  F04B53/14 ,  F05C2203/083 ,  F05C2253/12 ,  Y02T10/123

摘要： In a fuel pump pressurizing fuel and supplying the fuel to a fuel injection valve of a vehicle engine, a hardened layer of at least one selected from a nitride layer, a carburated and quenched layer and a carbonitrided layer, and a metal compound layer, on a surface of the hardened layer, higher in corrosion resistance than the hardened layer are formed on one of slide surfaces contacting each other and sliding in fuel.

摘要翻译： 在燃料泵中，对燃料加压并将燃料供给车辆发动机的燃料喷射阀，将选自氮化物层，碳化淬火层和碳氮共渗层中的至少一种的硬化层和金属化合物层， 在彼此接触并在燃料中滑动的一个滑动表面上形成硬化层的表面，其耐腐蚀性高于硬化层。

公开(公告)号：US07707996B2

公开(公告)日：2010-05-04

申请号：US12412071

申请日：2009-03-26

申请人： Hiroyuki Yamada ,  Shigenori Tahara ,  Atsuji Saito ,  Yukio Takahashi ,  Masami Abe

发明人： Hiroyuki Yamada ,  Shigenori Tahara ,  Atsuji Saito ,  Yukio Takahashi ,  Masami Abe

IPC分类号： F02M37/04 ,  F02M37/06

CPC分类号： F02M59/442 ,  F02M59/367 ,  F02M63/0017 ,  F02M63/0035 ,  F02M63/0225 ,  F04B1/0421 ,  F04B15/08 ,  F04B49/243 ,  F04B53/166

摘要： An intake valve automatically opened and closed by pressure of a pressuring chamber is provided in a fuel intake passage, the intake valve is pushed to open by a plunger of an electromagnetic plunger mechanism, pulling-in operating timing of the plunger is controlled according to the operating condition of an internal combustion engine, and opening time of the intake valve during compression stroke of a pump is controlled to make discharge flow-rate of high pressure fuel variable.

摘要翻译： 通过加压室的压力自动打开和关闭的进气阀设置在燃料进气通道中，进气阀被电磁柱塞机构的柱塞推动打开，柱塞的拉入操作时间根据 控制内燃机的运行状态，并且控制泵的压缩冲程期间的进气门的打开时间，使高压燃料的排出流量变化。

公开(公告)号：US20090178652A1

公开(公告)日：2009-07-16

申请号：US12412071

申请日：2009-03-26

申请人： Hiroyuki YAMADA ,  Shigenori Tahara ,  Atsuji Saito ,  Yukio Takahashi ,  Masami Abe

发明人： Hiroyuki YAMADA ,  Shigenori Tahara ,  Atsuji Saito ,  Yukio Takahashi ,  Masami Abe

IPC分类号： F02M37/04

CPC分类号： F02M59/442 ,  F02M59/367 ,  F02M63/0017 ,  F02M63/0035 ,  F02M63/0225 ,  F04B1/0421 ,  F04B15/08 ,  F04B49/243 ,  F04B53/166

摘要： An intake valve automatically opened and closed by pressure of a pressuring chamber is provided in a fuel intake passage, the intake valve is pushed to open by a plunger of an electromagnetic plunger mechanism, pulling-in operating timing of the plunger is controlled according to the operating condition of an internal combustion engine, and opening time of the intake valve during compression stroke of a pump is controlled to make discharge flow-rate of high pressure fuel variable.

摘要翻译： 通过加压室的压力自动打开和关闭的进气阀设置在燃料进气通道中，进气阀被电磁柱塞机构的柱塞推动打开，柱塞的拉入操作时间根据 控制内燃机的运行状态，并且控制泵的压缩冲程期间的进气门的打开时间，使高压燃料的排出流量变化。

公开(公告)号：US07540274B2

公开(公告)日：2009-06-02

申请号：US10643925

申请日：2003-08-20

申请人： Hiroyuki Yamada ,  Shigenori Tahara ,  Atsuji Saito ,  Yukio Takahashi ,  Masami Abe

发明人： Hiroyuki Yamada ,  Shigenori Tahara ,  Atsuji Saito ,  Yukio Takahashi ,  Masami Abe

IPC分类号： F02M37/04 ,  F02M37/06

CPC分类号： F02M59/442 ,  F02M59/367 ,  F02M63/0017 ,  F02M63/0035 ,  F02M63/0225 ,  F04B1/0421 ,  F04B15/08 ,  F04B49/243 ,  F04B53/166

摘要： An intake valve automatically opened and closed by pressure of a pressuring chamber is provided in a fuel intake passage, the intake valve is pushed to open by a plunger of an electromagnetic plunger mechanism, pulling-in operating timing of the plunger is controlled according to the operating condition of an internal combustion engine, and opening time of the intake valve during compression stroke of a pump is controlled to make discharge flow-rate of high pressure fuel variable.

摘要翻译： 通过加压室的压力自动打开和关闭的进气阀设置在燃料进气通道中，进气阀被电磁柱塞机构的柱塞推动打开，柱塞的拉入操作时间根据 控制内燃机的运行状态，并且控制泵的压缩冲程期间的进气门的打开时间，使高压燃料的排出流量变化。

公开(公告)号：US06631706B1

公开(公告)日：2003-10-14

申请号：US09463659

申请日：2000-01-28

申请人： Hiroyuki Yamada ,  Shigenori Tahara ,  Atsuji Saito ,  Yukio Takahashi ,  Masami Abe

发明人： Hiroyuki Yamada ,  Shigenori Tahara ,  Atsuji Saito ,  Yukio Takahashi ,  Masami Abe

IPC分类号： F02M3704

CPC分类号： F02M59/442 ,  F02M59/367 ,  F02M63/0017 ,  F02M63/0035 ,  F02M63/0225 ,  F04B1/0421 ,  F04B15/08 ,  F04B49/243 ,  F04B53/166

摘要： An intake valve automatically opened and closed by pressure of a pressuring chamber is provided in a fuel intake passage, the intake valve is pushed to open by a plunger of an electromagnetic plunger mechanism, pulling-in operating timing of the plunger is controlled according to the operating condition of an internal combustion engine, and opening time of the intake valve during compression stroke of a pump is controlled to make discharge flow-rate of high pressure fuel variable.

摘要翻译： 通过加压室的压力自动打开和关闭的进气阀设置在燃料进气通道中，进气阀被电磁柱塞机构的柱塞推动打开，柱塞的拉入操作时间根据 内燃机的运行状态，泵的压缩冲程期间的进气阀的打开时间被控制，使得高压燃料的排出流量变化。

公开(公告)号：US20060228239A1

公开(公告)日：2006-10-12

申请号：US11409062

申请日：2006-04-24

申请人： Satoshi Usui ,  Hiroyuki Yamada ,  Toru Onose ,  Atsuji Saito ,  Masami Abe ,  Masayoshi Kotaki ,  Hiroshi Odakura

发明人： Satoshi Usui ,  Hiroyuki Yamada ,  Toru Onose ,  Atsuji Saito ,  Masami Abe ,  Masayoshi Kotaki ,  Hiroshi Odakura

IPC分类号： F04B19/00

CPC分类号： F02M59/102 ,  F02M59/442 ,  F02M2200/16 ,  F04B53/04

摘要： A high pressure fuel pump for an internal combustion engine having a cylinder, a plunger slidably fitted in the cylinder and a seal mechanism for blocking fuel leakage from an end of a sliding portion between the cylinder and the plunger and also for preventing an lubricant for a driving mechanism of the plunger from entering into the cylinder from the end of the sliding portion of the cylinder and the plunger. A holder surrounding the end of the sliding portion of the cylinder and the plunger is provided. The seal mechanism comprises two mutually independent seal devices mounted with a specific spacing in a longitudinal direction from the end of the sliding portion of the cylinder and the plunger along a circumference of the plunger. The two seal devices are held on the circumference of the plunger by the holder surrounding the end of the sliding portion of the cylinder and the plunger while keeping the specific spacing.

公开(公告)号：US07513240B2

公开(公告)日：2009-04-07

申请号：US11622170

申请日：2007-01-11

申请人： Satoshi Usui ,  Hiroshi Odakura ,  Toru Onose ,  Atsuji Saito ,  Masami Abe ,  Hiroyuki Yamada

发明人： Satoshi Usui ,  Hiroshi Odakura ,  Toru Onose ,  Atsuji Saito ,  Masami Abe ,  Hiroyuki Yamada

IPC分类号： F02M59/46

CPC分类号： F02M37/0041 ,  F02D33/003 ,  F02M37/0047 ,  F02M55/04 ,  F02M59/366 ,  F02M59/44 ,  F02M63/0001 ,  F02M63/0225 ,  F02M2200/04 ,  F02M2200/24 ,  F02M2200/247 ,  F02M2200/315 ,  F04B11/0016 ,  F04B49/243 ,  F04B2205/01 ,  F04B2205/02 ,  F04B2205/05

摘要： A fuel feed system capable of feeding a fuel to fuel injection valves at a fuel pressure with improved stability is provided. A fuel feed system for an internal combustion engine including a fuel tank and a low-pressure pump for feeding the fuel in the fuel tank to fuel injection valves, is provided with a diaphragm type damper having a wave-shape cross section at a position in contact with the fuel. Also, in a high-pressure fuel feed pump including a pressurizing chamber for pressurizing the fuel, a plunger for pumping the fuel within the pressurizing chamber, an intake valve provided at a fuel inlet of the pressurizing chamber, a discharge valve provided at a fuel outlet of the pressurizing chamber, and a low-pressure chamber provided in an upstream of the intake valve, a mechanism for reducing fuel pressure pulsation is disposed in a space of the low-pressure chamber provided in the upstream of the intake valve, and a fuel pressure sensor for measuring the fuel pressure is mounted near the mechanism for reducing fuel pressure pulsation.

摘要翻译： 提供一种能够以具有改善的稳定性的燃料压力向燃料喷射阀供给燃料的燃料供给系统。 一种用于内燃机的燃料供给系统，其包括用于将燃料箱中的燃料供给到燃料喷射阀的燃料箱和低压泵，具有在其位置处具有波形截面的膜片式阻尼器 与燃料接触。 此外，在包括用于对燃料加压的加压室的高压燃料供给泵中，用于泵送加压室内的燃料的柱塞，设置在加压室的燃料入口的进气阀，设置在燃料的排出阀 加压室的出口以及设置在进气阀的上游的低压室，设置在进气阀的上游的低压室的空间内配置有用于降低燃料压力脉动的机构， 用于测量燃料压力的燃料压力传感器安装在用于降低燃料压力脉动的机构附近。

公开(公告)号：US07165534B2

公开(公告)日：2007-01-23

申请号：US10274034

申请日：2002-10-21

申请人： Satoshi Usui ,  Hiroshi Odakura ,  Toru Onose ,  Atsuji Saito ,  Masami Abe ,  Hiroyuki Yamada

发明人： Satoshi Usui ,  Hiroshi Odakura ,  Toru Onose ,  Atsuji Saito ,  Masami Abe ,  Hiroyuki Yamada

IPC分类号： F02M37/04

CPC分类号： F02M37/0041 ,  F02D33/003 ,  F02M37/0047 ,  F02M55/04 ,  F02M59/366 ,  F02M59/44 ,  F02M63/0001 ,  F02M63/0225 ,  F02M2200/04 ,  F02M2200/24 ,  F02M2200/247 ,  F02M2200/315 ,  F04B11/0016 ,  F04B49/243 ,  F04B2205/01 ,  F04B2205/02 ,  F04B2205/05

摘要： A fuel feed system capable of feeding a fuel to fuel injection valves at a fuel pressure with improved stability is provided. A fuel feed system for an internal combustion engine including a fuel tank and a low-pressure pump for feeding the fuel in the fuel tank to fuel injection valves, is provided with a diaphragm type damper having a wave-shape cross section at a position in contact with the fuel. Also, in a high-pressure fuel feed pump including a pressurizing chamber for pressurizing the fuel, a plunger for pumping the fuel within the pressurizing chamber, an intake valve provided at a fuel inlet of the pressurizing chamber, a discharge valve provided at a fuel outlet of the pressurizing chamber, and a low-pressure chamber provided in an upstream of the intake valve, a mechanism for reducing fuel pressure pulsation is disposed in a space of the low-pressure chamber provided in the upstream of the intake valve, and a fuel pressure sensor for measuring the fuel pressure is mounted near the mechanism for reducing fuel pressure pulsation.

摘要翻译： 提供一种能够以具有改善的稳定性的燃料压力向燃料喷射阀供给燃料的燃料供给系统。 一种用于内燃机的燃料供给系统，其包括用于将燃料箱中的燃料供给到燃料喷射阀的燃料箱和低压泵，具有在其位置处具有波形截面的膜片式阻尼器 与燃料接触。 此外，在包括用于对燃料加压的加压室的高压燃料供给泵中，用于泵送加压室内的燃料的柱塞，设置在加压室的燃料入口的进气阀，设置在燃料的排出阀 加压室的出口以及设置在进气阀的上游的低压室，设置在进气阀的上游的低压室的空间内配置有用于降低燃料压力脉动的机构， 用于测量燃料压力的燃料压力传感器安装在用于降低燃料压力脉动的机构附近。