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1. 发明专利

JP2007010156A Seal mechanism and fuel pump comprising the same 审中-公开
标题翻译：密封机构和包含它的燃油泵
公开(公告)号：JP2007010156A
公开(公告)日：2007-01-18
申请号：JP2006216364
申请日：2006-08-09
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HASHIDA MINORU , MACHIMURA HIDENORI , YAMAUCHI HIDEAKI , KOTAKI MICHIYOSHI , YAMAMURA TAKESHI
IPC分类号： F16J15/32 , F02M59/44 , F04B53/02
摘要： PROBLEM TO BE SOLVED: To improve pressure resistance of an oil seal to dispense with returning piping to a fuel tank for reducing pressure applied to the oil seal used in a high-pressure fuel pump. SOLUTION: This seal mechanism comprises a stress relieving mechanism for relieving stress generated on a joining portion of an oil seal holding member and a soft member. Concretely, a clearance (radial clearance) between an innermost diameter of a first holding member of a first oil seal 10 and an outer diameter of a plunger 70 is determined to be 0.9 mm or less. Thus when a pressure is added to the first oil seal 10 (first lip 13), the deformation of the first lip is prevented, and the stress of the soft member generated near a first holding member inner diameter angular portion 11a can be relieved. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提高油封的耐压性，省略了向燃料箱返回的管道，用于降低施加到高压燃料泵中使用的油封的压力。解决方案：该密封机构包括用于减轻在油封保持构件和软构件的接合部分上产生的应力的应力消除机构。具体地，确定第一油封10的第一保持部件的最内径与柱塞70的外径之间的间隙（径向游隙）为0.9mm以下。因此，当向第一油封10（第一唇缘13）添加压力时，防止了第一唇缘的变形，并且可以减轻在第一保持构件内径角部11a附近产生的软质构件的应力。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2005155489A Fuel supply control device of internal combustion engine 有权
标题翻译：内燃机燃油供应控制装置
公开(公告)号：JP2005155489A
公开(公告)日：2005-06-16
申请号：JP2003396078
申请日：2003-11-26
申请人： Hitachi Ltd , Honda Motor Co Ltd , 本田技研工業株式会社 , 株式会社日立製作所
发明人： MACHIMURA HIDENORI , OKAMOTO TAKASHI , KUBO HIROSHI , OGAWA MASARU , KOMORIYA ISAO , TAKEUCHI MASAHIRO , TAKAMIYA HIDEJI
IPC分类号： F02M47/00 , F02D41/02 , F02D41/04 , F02D41/20 , F02D41/32 , F02M47/02 , F02M55/02
摘要： PROBLEM TO BE SOLVED: To provide a fuel supply control device of an internal combustion engine capable of supplying fuel to an injector by using a high-pressure pump to adjust the fuel discharge by a check valve and an electromagnetic solenoid, correctly adjusting the discharge of the high-pressure pump even when the energization time of the electromagnetic solenoid is not matched with the fuel discharge time, and controlling the pressure of the fuel to be supplied to the injector with high accuracy.
SOLUTION: The discharge time THPCAL of a high-pressure pump is determined based on the fuel injection TOUTHPMX for controlling the high-pressure pump (the maximum value of the by-cylinder required fuel amount toutntmp), the discharge start timing thehpcalcl of the high-pressure pump is determined (S806) based on the determined discharge timing THPCAL and the preset discharge completion timing #THEHPEND, and the energization start timing THEHPSST of an electromagnetic solenoid is determined (S814) based on the determined discharge start timing thehpcalcl.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种内燃机的燃料供给控制装置，其能够通过使用高压泵向喷射器供给燃料，以通过止回阀和电磁螺线管来调节燃料排出，正确地调整即使当电磁螺线管的通电时间与燃料排出时间不匹配时，也可以高精度地控制供给喷射器的燃料的压力。
解决方案：基于用于控制高压泵的燃料喷射TOUTHPMX（副缸所需燃料量的最大值toutntmp），放电开始时刻hpcalcl来确定高压泵的排出时间THPCAL 基于所确定的放电时间THPCAL和预设的放电完成定时#THEHPEND确定高压泵的功率（S806），并且基于所确定的放电开始时刻确定电磁螺线管的通电开始定时THEHPSST（S814）。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2008286144A Liquid pressure pulsation damping mechanism and high-pressure fuel supply pump with the same 有权
标题翻译：液压式脉动阻尼机构及其高压燃油泵
公开(公告)号：JP2008286144A
公开(公告)日：2008-11-27
申请号：JP2007133612
申请日：2007-05-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MUNAKATA AKIHIRO , MACHIMURA HIDENORI , YAMAUCHI HIDEAKI , KITAJIMA DAISUKE , NEMOTO MASAFUMI
IPC分类号： F02M59/44 , F02M55/02
CPC分类号： F02M55/04 , F02M59/102 , F02M59/366 , F02M59/367 , F02M59/48 , F02M63/0225 , F02M2200/315 , F04B11/0016
摘要： PROBLEM TO BE SOLVED: To provide a simple, compact damping mechanism having a stable pressure pulsation reducing effect for a liquid, and also to provide a high-pressure fuel supply pump for an internal combustion engine with the damping mechanism.
SOLUTION: A metal damper, which is made of two metal diaphragm joint in an airtight state, and is provided with an airtight space filled with a gas at the center section, and has an edge section where the two metal diaphragms overlap at its outer periphery, is fixed on a damper storage section while being sandwiched between a main body and a cover. The cover is made of a metal plate, the cover is alternately provided with a plurality of inner convex curved surface sections projecting on a main body side and a plurality of outer convex curved surface sections projecting in the direction going away from the main body, and the metal damper is fixed on the damper storage section by sandwiching the metal damper between the case and a metal damper retaining section where the end of the inner convex curved surface section is brought into contact with the surface at an one side of the edge section of the metal damper and is brought into contact with the surface on the other side of the edge section.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种对液体具有稳定的压力脉动降低效果的简单紧凑的阻尼机构，并且还提供具有阻尼机构的用于内燃机的高压燃料供给泵。解决方案：一种金属阻尼器，由气密密封的两个金属隔膜接头制成，并且在中心部分设置有充满气体的气密空间，并且具有两个金属隔膜重叠的边缘部分其外周边被夹在主体和盖之间而固定在减震器储存部上。盖由金属板制成，盖子交替地设置有在主体侧突出的多个内凸曲面部分和沿远离主体的方向突出的多个外凸曲面部分，以及金属阻尼器通过将金属阻尼器夹在壳体和金属阻尼器保持部分之间而固定在阻尼器存储部分上，金属阻尼器保持部分使内凸曲面部分的端部与边缘部分的一侧的表面接触金属阻尼器与边缘部分另一侧的表面接触。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2004036555A Fuel pump for cylinder direct fuel injection device 有权
公开(公告)号：JP2004036555A
公开(公告)日：2004-02-05
申请号：JP2002196653
申请日：2002-07-05
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAGUCHI SHIZUKA , BABA NOBORU , TAKAHASHI MASAYA , TERAKADO KAZUYOSHI , KAGIYAMA ARATA , KOTAKI MICHIYOSHI , SAWADA SHOGO , KOJIMA KAZUO , YAMADA HIROYUKI , MACHIMURA HIDENORI , TAKAHASHI YUKIO
IPC分类号： F02M59/44 , C23C18/31 , C23C18/32 , C23C28/00 , F04B1/04 , F04B53/00 , F04B53/16
CPC分类号： C23C28/321 , C23C28/345 , F04B1/0404 , F04B53/162 , F05C2201/021 , F05C2201/903 , F05C2253/12 , Y10S428/936 , Y10T137/7036 , Y10T137/85978 , Y10T428/1275 , Y10T428/12944
摘要： PROBLEM TO BE SOLVED: To provide a fuel pump for a cylinder direct injection device suppressing the generation of corrosion, cavitation, and wear due to erosion, even under high temperatures reaching 100°C and high pressures reaching 7 to 12 MPa; improving environment resistances thereof; and having excellent life when using aluminum material. SOLUTION: In the fuel pump for a cylinder direct fuel injection device having aluminum or an aluminum alloy, Ni-P or a Ni-P type coating is formed by electroless plating. COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2004036468A High pressure fuel pump 审中-公开
公开(公告)号：JP2004036468A
公开(公告)日：2004-02-05
申请号：JP2002194073
申请日：2002-07-03
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： YAMAUCHI HIDEAKI , TAWARA SHIGENORI , HASHIDA MINORU , MACHIMURA HIDENORI
IPC分类号： F02M37/06 , F02M59/44 , F02M59/46 , F02M63/00 , F04B1/14 , F04B53/10
摘要： PROBLEM TO BE SOLVED: To provide a high pressure fuel pump having a less number of components and reduced assembling processes by giving the function of fixing a stopper to a retaining plate of a reciprocating seal. SOLUTION: The high pressure fuel pump has a discharge chamber in which a pressurized fuel exists and a suction chamber in which a pre-pressurized fuel exists. It also has a safety valve through which the fuel is released from the discharge chamber to the suction chamber when pressure in the discharge chamber exceeds a set value. In the high pressure fuel pump comprising a seat face, a valve element, a spring for pushing the valve element to the seat face via a valve element retainer, the stopper for holding the spring compressed down to a set load, and a member for fixing the stopper to a cylinder, the safety valve fixes the stopper with a plate fixed to the end face of the cylinder with a set screw. COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2003042167A Bearing, pump structure provided with bearing, lubrication oil, water-removing method thereof 审中-公开
标题翻译：轴承，提供轴承的泵结构，润滑油，水移除方法
公开(公告)号：JP2003042167A
公开(公告)日：2003-02-13
申请号：JP2001234388
申请日：2001-08-02
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MACHIMURA HIDENORI , HASHIDA MINORU , YAMAUCHI HIDEAKI , KAGIYAMA ARATA , YAMAGUCHI SHIZUKA , KOTAKI MICHIYOSHI , YAMAMURA TAKESHI
IPC分类号： F02M59/44 , C10M107/02 , C10N20/00 , C10N30/12 , C10N40/02 , F04B1/16 , F04B53/00 , F04B53/18 , F16C33/32 , F16C33/34 , F16C33/62 , F16C33/66
摘要： PROBLEM TO BE SOLVED: To solve such a possibility that existing water in oil or water separated from oil decomposes at the sliding surface of a bearing in a high temperature and high pressure and penetrates in the bearing race or the rolling body to reduce the life of the bearing.
SOLUTION: A material preventing generation of hydrogen and its penetration is used as a bearing material or a surfactant is used, in order to solve the problem. And a water content for a lubrication oil for bearings as a supply source of hydrogen is restricted within 300 ppm. The life ratio (=real life/ calculated life) of a bearing is improved as much as twice by forming an oxide film chiefly containing Fe
3 O
4 . And further, the life ratio of the bearing (=real life/calculated life) is increased as much as 15 times or larger in the maximum, by reducing the water content in oil becoming the supply source of hydrogen within 300 ppm or lower.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了解决在油分离的油或水中的现有水分在轴承的滑动表面在高温高压下分解并渗透到轴承座圈或滚动体中以降低寿命的可能性轴承。解决方案：为了解决问题，使用防止氢的产生及其渗透的材料作为轴承材料或表面活性剂。并且用于作为氢源的轴承的润滑油的含水量限制在300ppm以内。通过形成主要含有Fe 3 O 4的氧化物膜，轴承的寿命（=实际寿命/计算寿命）提高了两倍。此外，通过降低在300ppm以下的氢气供应源中的油的含水量，轴承寿命（=实际寿命/计算寿命）在最大值上增加多达15倍或更大。

7. 发明专利

JP2009108783A High pressure fuel pump 有权
标题翻译：高压燃油泵
公开(公告)号：JP2009108783A
公开(公告)日：2009-05-21
申请号：JP2007282606
申请日：2007-10-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MACHIMURA HIDENORI , MUNAKATA AKIHIRO
IPC分类号： F02M55/02 , F02D41/22 , F02M51/00 , F02M55/00 , F02M59/20 , F02M59/36
CPC分类号： Y02T10/40
摘要： PROBLEM TO BE SOLVED: To provide the function of controlling delivery capacity and a mechanism of functioning as a safety valve in abnormal high pressure of fuel pressure in a pressure accumulator (a common rail) by one electromagnetically driven mechanism. SOLUTION: This fuel pump is constituted so that, for attaining the purpose, an electromagnetic solenoid mechanism is arranged for controlling the movement of a valve element of a delivery valve based on a signal from a control device, and when cutting off current-carrying of a solenoid, the valve element of the delivery valve exists in a valve opening position by a spring, and a delivery passage is opened. In this fuel pump constituted in this way, the delivery capacity is normally controlled by controlling the valve closing timing of this electromagnetically driven delivery valve by a signal, and in the abnormal high pressure of the fuel pressure in the pressure accumulator (the common rail), this valve is opened as it is so as to function as the safety valve, and delivery capacity control and the safety valve function can be attained by one electromagnetically driven mechanism. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：通过一个电磁驱动机构，提供控制输送能力的功能和作为压力蓄能器（共轨）的异常高压燃料压力的安全阀的机构。解决方案：该燃料泵的构成是为了达到此目的，设置电磁螺线管机构，用于根据来自控制装置的信号控制输送阀的阀元件的运动，并且当切断电流时 - 螺线管的进气口，排出阀的阀元件通过弹簧存在于阀打开位置，并且输送通道打开。在这样构成的燃料泵中，通过利用信号控制该电磁驱动输送阀的关闭时机，并且在压力蓄能器（共轨）的燃料压力的异常高压下，通常控制输送能力，该阀被直接打开以作为安全阀，并且通过一个电磁驱动机构可以实现输送能力控制和安全阀功能。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2007032576A Fuel pump for cylinder direct fuel injection device 审中-公开
标题翻译：燃油泵直接燃油喷射装置
公开(公告)号：JP2007032576A
公开(公告)日：2007-02-08
申请号：JP2006287088
申请日：2006-10-23
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAGUCHI SHIZUKA , BABA NOBORU , TAKAHASHI MASAYA , TERAKADO KAZUYOSHI , KAGIYAMA ARATA , KOTAKI MICHIYOSHI , SAWADA SHOGO , KOJIMA KAZUO , YAMADA HIROYUKI , MACHIMURA HIDENORI , TAKAHASHI YUKIO
IPC分类号： F02M59/44 , C23C18/31 , C23C18/36
摘要： PROBLEM TO BE SOLVED: To provide a fuel pump for a cylinder direct fuel injection device capable of preventing occurrence of corrosion, cavitation, and wear due to erosion even at high temperatures reaching 100°C or more and even under high pressures reaching 7 to 12 MPa and improving resistance to the environment and having excellent service life when using an aluminum material.
SOLUTION: A Ni-P or Ni-P system plated film is formed by electroless plating in the fuel feed pump in the cylinder direct fuel injection device having aluminum or aluminum alloy.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于气缸直接燃料喷射装置的燃料泵，其能够防止即使在高达100℃或更高的高温甚至在高压下达到腐蚀，空化和磨损，甚至在高压下 7〜12MPa，提高耐环境性，使用铝材时的使用寿命优异。解决方案：通过在具有铝或铝合金的气缸直接燃料喷射装置中的燃料供给泵中通过无电镀形成Ni-P或Ni-P系统镀膜。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2009114868A High pressure liquid supply pump 有权
标题翻译：高压液体泵
公开(公告)号：JP2009114868A
公开(公告)日：2009-05-28
申请号：JP2007285460
申请日：2007-11-01
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ARITOMI TOSHIAKI , MAEKAWA NORIYUKI , MACHIMURA HIDENORI , NEMOTO MASAFUMI
IPC分类号： F02M59/34 , F02M55/02 , F02M59/46
CPC分类号： F02M63/0265 , F02M37/0029 , F02M37/0052 , F02M59/366 , F02M63/0036 , F02M63/005 , F02M63/0054 , F04B49/035 , G05D7/0133
摘要： PROBLEM TO BE SOLVED: To reduce pressure loss in a relief valve used for a high-pressure liquid supply pump.
SOLUTION: The high-pressure liquid supply pump for pressurizing a liquid and supplying the pressurized liquid from a low-pressure side to a high-pressure side includes a relief path which releases the pressurized liquid from the high-pressure side to the low-pressure side, and a relief valve which is positioned in the relief path and equipped with an intermediate chamber, a valve seat positioned toward the high-pressure side of the intermediate chamber, a valve element that is attachable to and detachable from the valve seat, and a valve element retainer for pressing the valve element against the valve seat. The relief path is configured so that an inflow path to the intermediate chamber and an outflow path from the intermediate chamber both produce a restriction effect. The valve element retainer has a pressure reception surface for receiving the pressure from the intermediate chamber. A first pressure reception area, which detaches the valve element from the valve seat upon receipt of liquid pressure of the pressurized liquid from a high-pressure section when the relief valve closes, is smaller than a second pressure reception area, which lifts the valve element and the valve element retainer upon receipt of liquid pressure from the intermediate chamber.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：减少用于高压液体供应泵的安全阀中的压力损失。解决方案：用于对液体加压并将加压液体从低压侧供给到高压侧的高压液体供给泵包括将加压液体从高压侧释放到低压侧和安置阀，其位于释放路径中并具有中间室，朝向中间室的高压侧定位的阀座，可附接到阀可拆卸的阀元件阀座和用于将阀元件压靠在阀座上的阀元件保持器。排气路径构造成使得到中间室的流入路径和来自中间室的流出路径都产生限制效果。阀元件保持器具有用于接收来自中间室的压力的压力接收表面。第一压力接收区域，当安全阀关闭时接收到来自高压部分的加压液体的液体压力时，阀元件从阀座分离，小于第二压力接收区域，其将阀元件以及在从中间室接收液体压力时的阀元件保持器。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2009108784A High-pressure fuel supply pump and its manufacturing method 有权
标题翻译：高压燃油泵及其制造方法
公开(公告)号：JP2009108784A
公开(公告)日：2009-05-21
申请号：JP2007282607
申请日：2007-10-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MUNAKATA AKIHIRO , MACHIMURA HIDENORI , HOSOKAWA KAZUTAKA
IPC分类号： F04B53/00 , B23K20/00 , F02M59/44 , F04B9/04
CPC分类号： F02M59/02 , B23K11/16 , B23K11/26 , B23K20/023 , B23K33/006 , B23K33/008 , B23K2201/04 , B23K2203/02 , F02M59/48 , F02M59/485 , F02M2200/8084 , F04B1/0404 , F04B53/168
摘要： PROBLEM TO BE SOLVED: To provide a joining structure and a method without causing a composition change in a metallic material by heat, by sufficiently providing joining strength and fluid sealability in a short time at joining work by staking (press-fitting included), screw-fastening and laser welding, as the joining structure of two metallic parts fitted by a cylindrical part in a high pressure fuel supply pump. SOLUTION: While an electric current is supplied to any one of the welding connection surfaces formed between a pump housing and a cylinder in the high pressure fuel supply pump, between the pump housing and an installation flange, between the pump housing and a suction or delivery joint, between the pump housing and a damper cover of a pulsation absorbing damper mechanism, between the pump housing and a relief valve mechanism, and between the pump housing and an electromagnetically driven intake valve mechanism, the particular two sections are pressed against each other to generate, along the connection surface, a plastic flow not causing melting due to heat, and form a diffusion-weld region at the connection surface by using the plasstic flow and the relative application of the pressure. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种接合结构和方法，而不会通过加热在金属材料中引起组成变化，通过在短时间内通过铆接（包括压配合）在短时间内充分提供接合强度和流体密封性），螺钉紧固和激光焊接，作为由高压燃料供应泵中的圆柱形部件装配的两个金属部件的接合结构。
解决方案：当电流被供应到在高压燃料供应泵中的泵壳体和气缸之间形成的焊接连接表面中的任何一个时，在泵壳体和安装凸缘之间，泵壳体和抽吸或输送接头，在泵壳体和脉动吸收阻尼器机构的阻尼器盖之间，在泵壳体和安全阀机构之间以及泵壳体和电磁进气阀机构之间，特定的两个部分被压靠彼此沿着连接表面产生不会由于热而引起熔融的塑性流动，并且通过使用等离子体流动和相对施加压力在连接表面形成扩散焊接区域。版权所有（C）2009，JPO＆INPIT

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