公开(公告)号：US20180320647A1

公开(公告)日：2018-11-08

申请号：US15811257

申请日：2017-11-13

申请人： ZAMA JAPAN KABUSHIKI KAISHA

发明人： Takumi Nonaka ,  Hideki Watanabe

IPC分类号： F02M37/00 ,  F02M59/14 ,  F02M57/02 ,  F02M55/04 ,  F02M55/02

CPC分类号： F02M37/0052 ,  F02M37/0023 ,  F02M55/02 ,  F02M55/04 ,  F02M57/02 ,  F02M57/026 ,  F02M59/14

摘要： A fuel injection device for smooth discharge of a gas accumulated therein comprising a fuel pump, a solenoid valve for injecting pressurized fuel into the intake passage of an engine, a high-pressure fuel passage extending from the fuel pump to the solenoid valve and has a medially positioned constant-pressure chamber, and a fuel return passage connected to a fuel return pipe, with the fuel return passage extending from the constant-pressure chamber and having a medially positioned priming pump. The constant-pressure chamber is configured with the top wall in the upper space thereof disposed above the opening of the high-pressure fuel passage opposite the solenoid valve, the fuel return passage opens into the upper space at a position above the opening of the high-pressure fuel passage, and the gas accumulating in the constant-pressure chamber is discharged from the upper space toward the fuel tank via the fuel return passage.

公开(公告)号：US20160208796A1

公开(公告)日：2016-07-21

申请号：US14758295

申请日：2014-08-06

申请人： CONTINENTAL AUTOMOTIVE GMBH

发明人： Uwe Nigrin ,  Ngoc-Tam Vu ,  Andreas Ederer ,  Uday Bhat ,  Thejesh Kumar Magadibyredevaru ,  Marcin Olik

IPC分类号： F04B53/04 ,  F02M59/46 ,  F04B11/00 ,  F04B53/14 ,  F04B53/16 ,  F02M59/14 ,  F04B43/02

CPC分类号： F04B53/04 ,  F02M55/04 ,  F02M59/025 ,  F02M59/102 ,  F02M59/14 ,  F02M59/44 ,  F02M59/442 ,  F02M59/46 ,  F02M63/0054 ,  F02M2200/31 ,  F02M2200/315 ,  F02M2200/9015 ,  F04B11/00 ,  F04B43/02 ,  F04B53/14 ,  F04B53/16

摘要： A high pressure pump of a common rail pump system includes a pump body having a cylinder with a piston bore and a piston reciprocally driven in the piston bore to pressurize fuel in the cylinder. The piston has an inner end located in the piston bore and an outer end outside the piston bore. A bellow having a first opening and a second opening is arranged between the piston and the pump body, wherein the piston extends through the first and second openings, wherein the bellow is connected to the pump body such that the first opening is sealed on the pump body and wherein the bellow is connected to the outer end of the piston such that the second opening is sealed on the piston. This arrangement prevents mixing of engine oil and fuel. The bellow may be connected to a drainage line via a one-way valve.

摘要翻译： 共轨泵系统的高压泵包括具有活塞孔的缸体和在活塞孔中往复驱动的活塞的泵体，以对气缸中的燃料加压。 活塞具有位于活塞孔内的内端和活塞孔外的外端。 具有第一开口和第二开口的波纹管布置在活塞和泵体之间，其中活塞延伸穿过第一和第二开口，其中波纹管连接到泵体，使得第一开口密封在泵 主体，并且其中波纹管连接到活塞的外端，使得第二开口被密封在活塞上。 这种布置防止发动机油和燃料混合。 波纹管可以通过单向阀连接到排水管。

公开(公告)号：US09394870B2

公开(公告)日：2016-07-19

申请号：US14720042

申请日：2015-05-22

申请人： ZAMA JAPAN KABUSHIKI KAISHA

发明人： Takumi Nonaka ,  Hideki Watanabe

IPC分类号： F02M51/00 ,  F02M55/02 ,  F02M57/02 ,  F02M37/00 ,  F02M55/04

CPC分类号： F02M37/0052 ,  F02M37/0023 ,  F02M55/02 ,  F02M55/04 ,  F02M57/02 ,  F02M57/026 ,  F02M59/14

摘要： A fuel injection device for smooth discharge of a gas accumulated therein comprising a fuel pump, a solenoid valve for injecting pressurized fuel into the intake passage of an engine, a high-pressure fuel passage extending from the fuel pump to the solenoid valve and has a medially positioned constant-pressure chamber, and a fuel return passage connected to a fuel return pipe, with the fuel return passage extending from the constant-pressure chamber and having a medially positioned priming pump. The constant-pressure chamber is configured with the top wall in the upper space thereof disposed above the opening of the high-pressure fuel passage opposite the solenoid valve, the fuel return passage opens into the upper space at a position above the opening of the high-pressure fuel passage, and the gas accumulating in the constant-pressure chamber is discharged from the upper space toward the fuel tank via the fuel return passage.

公开(公告)号：US06607361B1

公开(公告)日：2003-08-19

申请号：US09787989

申请日：2001-07-17

申请人： Robert Kotter ,  Markus Ficht

发明人： Robert Kotter ,  Markus Ficht

IPC分类号： F04B1700

CPC分类号： B05B9/0426 ,  B05B9/002 ,  B05B9/0409 ,  F02M51/04 ,  F02M57/027 ,  F02M59/14 ,  F02M63/06

摘要： The invention relates to a method for the metered, pulsed pumping of fluid media under high pressure, in which a pressure surge resulting from the stored, kinetic energy of an electromagnetically driven armature element of a reciprocating pump is transmitted via a blocking element to a working fluid, which is enclosed in a pressure space connected to a spraying device, resulting in a predetermined quantity of the working fluid being conveyed out of an spraying unit, the stored, kinetic energy of the armature element being abruptly transmitted first of all to an operating fluid, which is enclosed in a pressure-accumulating space arranged upstream of the pressure space, inducing a pressure surge which is transmitted in the operating fluid in an expanding manner to the blocking element and from the blocking element to the working fluid.

摘要翻译： 本发明涉及一种用于在高压下流体介质的计量脉冲泵送的方法，其中由往复泵的电磁驱动电枢元件的存储的动能产生的压力浪涌通过阻塞元件传递到工作 流体，其封闭在与喷射装置连接的压力空间中，导致预定量的工作流体被输送出喷射单元，所存储的电枢元件的动能首先突然传递到操作 流体被封闭在设置在压力空间上游的蓄压空间中，引起压力浪涌，该压力浪涌以膨胀方式在工作流体中传递到阻塞元件并从阻挡元件传递到工作流体。

公开(公告)号：US20020029761A1

公开(公告)日：2002-03-14

申请号：US09943156

申请日：2001-08-31

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Susumu Kojima

IPC分类号： F02M001/00

CPC分类号： F02M63/0225 ,  F02M59/14 ,  F02M2200/60

摘要： A high-pressure fuel supply system includes an accumulator-type booster mechanism which increases the pressure in a high-pressure portion of the high-pressure fuel supply system to a preset starting pressure upon starting of an engine. The accumulator-type booster mechanism is supported on the engine body.

摘要翻译： 高压燃料供给系统包括蓄能式增压机构，其将发动机起动时的高压燃料供给系统的高压部的压力增加到预定的起动压力。 蓄能式增压机构支撑在发动机主体上。

公开(公告)号：US20020023600A1

公开(公告)日：2002-02-28

申请号：US09975726

申请日：2001-10-11

发明人： William E. Galka ,  Ronald H. Roche

IPC分类号： F02P005/00

CPC分类号： F02M17/04 ,  F02B25/14 ,  F02B25/22 ,  F02B33/04 ,  F02B33/44 ,  F02B2075/025 ,  F02M13/046 ,  F02M23/03 ,  F02M59/107 ,  F02M59/14 ,  F02M69/10 ,  F02M69/18 ,  Y02T10/146

摘要： A two stroke combustion engine, equipped with fuel injection apparatus and ignition timing controlled by throttle position, has a charge forming device which delivers a rich fuel mixture from an integral float-type fuel chamber. The fuel injection apparatus typically comprises a tuned injector tube that communicates between a crankcase injector port and a cylinder injector port. The vast majority of fuel mixes with air in an injector mixing passage of the charge forming device where it is subsequently delivered to the tuned injector tube which directly injects the rich fuel mixture into a cylinder of the engine. The rich fuel mixture supplied by the charge forming device injects into the combustion chamber through the cylinder injector port via a reflected pressure wave generated from the previous combustion cycle. A primary air circuit of the charge forming device delivers a substantially lean mixture of fuel-and-air into the crankcase at high engine speeds where it flows from the crankcase through an air feed passage and into the combustion chamber. At idle and low speed engine conditions where throttle position is less than fifty percent open, ignition timing is predominately used to control engine operation. This feature simplifies design and calibration of the charge forming device while improving engine performance at extremely low fuel demands and load conditions.

摘要翻译： 配备有燃料喷射装置和由节气门位置控制的点火正时的二冲程内燃机具有从一体式浮式燃料室输送富燃料混合物的电荷形成装置。 燃料喷射装置通常包括调节的喷射器管，其在曲轴箱喷射器端口和气缸喷射器端口之间连通。 绝大多数燃料与电荷形成装置的注射器混合通道中的空气混合，随后将其输送到调节的注射管，该注射管将富燃料混合物直接喷射到发动机的气缸中。 由电荷形成装置供应的富燃料混合物经由气缸喷射器端口经由来自先前燃烧循环产生的反射压力波而喷射到燃烧室中。 电荷形成装置的一次空气回路以高发动机转速将燃料和空气的基本上贫的混合物输送到曲轴箱中，在那里它们从曲轴箱通过供气通道流入燃烧室。 在节气门位置小于百分之五十的怠速和低速发动机条件下，点火正时主要用于控制发动机运行。 该特征简化了电荷形成装置的设计和校准，同时在极低的燃料需求和负载条件下提高发动机性能。

公开(公告)号：US20010032601A1

公开(公告)日：2001-10-25

申请号：US09764701

申请日：2001-01-18

发明人： William E. Galka ,  Anthony M. Kueffner ,  Dale P. Kus ,  Kevin L. Williams

IPC分类号： F02B033/04

CPC分类号： F02M17/04 ,  F02B25/14 ,  F02B25/22 ,  F02B33/04 ,  F02B33/44 ,  F02B2075/025 ,  F02M13/046 ,  F02M23/03 ,  F02M59/107 ,  F02M59/14 ,  F02M69/10 ,  F02M69/18 ,  Y02T10/146

摘要： A fuel injection system for a two-stroke small engine has a charge forming device with an injector mixing passage which forms a rich fuel and air mixture supplied to a tuned injector tube connected adjacent one end through a port to the engine cylinder and adjacent the other end to the engine crankcase. The charge forming device has a high speed fuel circuit which supplies at least a majority of the fuel to the mixing passage under wide open throttle operating conditions and preferably a minor portion of the fuel is also supplied by an idle fuel circuit which under engine idle conditions preferably supplies essentially all of the fuel to the engine. A separate inlet air flow passage of the charge forming device also supplies primarily air to the crankcase of the engine for transfer to the cylinder. Under engine wide open throttle conditions, preferably a very minor quantity of fuel with oil therein is supplied through the inlet air flow passage to the crankcase and transferred to the cylinder to provide lubrication of the moving parts in the crankcase and some cooling of the engine.

摘要翻译： 用于二冲程小型发动机的燃料喷射系统具有电荷形成装置，其具有喷射器混合通道，其形成富集的燃料和空气混合物，其被供应到经由端口连接到发动机气缸并且彼此相邻的一端连接的调谐注射器管 结束到发动机曲轴箱。 电荷形成装置具有高速燃料电路，其在宽敞的节气门操作条件下向混合通道供应至少大部分燃料，并且优选地，燃料的一小部分也由在发动机怠速条件下的怠速燃料回路供应 优选地将基本上所有的燃料供应给发动机。 电荷形成装置的独立入口气流通道还主要将空气供给到发动机的曲轴箱以转移到气缸。 在发动机敞开节气门条件下，优选地，其中具有油的非常少量的燃料通过入口空气流动通道供应到曲轴箱并被传送到气缸，以提供曲轴箱中的运动部件的润滑和发动机的一些冷却。

公开(公告)号：US06264437B1

公开(公告)日：2001-07-24

申请号：US09194437

申请日：1999-05-10

申请人： Louis-Claude Porel

发明人： Louis-Claude Porel

IPC分类号： F04B908

CPC分类号： F02M59/246 ,  F02M59/04 ,  F02M59/08 ,  F02M59/105 ,  F02M59/14 ,  F02M59/243 ,  F04B1/14 ,  F04B43/067 ,  F04B53/142

摘要： A device enables the pumping of any kind of liquid while giving the liquid very high delivery pressure. The units that cause pumped liquid suction and then its delivery are driven exclusively by hydraulic means excluding mechanical means. So that there is no material contact between the driving units and the pumped product and that the product cannot damage the mechanical driving units, the chamber receiving the hydraulic fluid is, at the end of each compression cycle, placed again in direct communication with the hydraulic fluid reservoir.

摘要翻译： 一种装置能够抽吸任何种类的液体，同时给予液体非常高的输送压力。 导致抽吸液体抽吸然后输送的单元仅由液压装置驱动，不包括机械装置。 因此，驱动单元和泵送产品之间没有物料接触，并且产品不会损坏机械驱动单元，接收液压流体的室在每个压缩循环结束时再次放置在与液压 流体储存器

公开(公告)号：US20010007249A1

公开(公告)日：2001-07-12

申请号：US09759047

申请日：2001-01-12

申请人： KIORITZ CORPORATION

发明人： Takeshi Ishikawa ,  Yukio Sakaguchi ,  Yoshiaki Hironaka ,  Kiyoshige Enomoto

IPC分类号： F02M071/00 ,  F02M051/00

CPC分类号： F02M59/42 ,  F02B2075/025 ,  F02M17/04 ,  F02M37/046 ,  F02M37/16 ,  F02M49/00 ,  F02M51/0678 ,  F02M59/107 ,  F02M59/14

摘要： An air-fuel mixture generating device includes a main body equipped with a diaphragm-type fuel pump, a fuel injection valve attached to the main body, and a manual fuel pump attached to the main body for filling a fuel passageway with fuel when the diaphragm-type fuel pump is not operating. The manual fuel pump has an inlet port which communicates with the fuel passageway and a pressure-adjusting valve disposed at the inlet port of the manual fuel pump, thereby enabling it to act not only as an intake valve when the manual fuel pump is operated but also as a relief valve for allowing the fuel inside the fuel passageway to escape into a pump chamber of the manual fuel pump when the pressure of fuel inside the fuel passageway exceeds a predetermined pressure.

摘要翻译： 一种空气燃料混合物产生装置，包括：主体，其配备有隔膜式燃料泵，安装在主体上的燃料喷射阀，以及安装在主体上的手动燃料泵，用于在燃料通路中填充燃料， 型燃油泵不工作。 手动燃油泵具有与燃料通道连通的入口和设置在手动燃油泵入口处的压力调节阀，从而使其能够在手动燃油泵运行时不仅作为进气阀起作用， 当燃料通道内的燃料压力超过预定压力时，还可以将燃料通道内的燃料排出到手动燃油泵的泵室中。

公开(公告)号：US5870999A

公开(公告)日：1999-02-16

申请号：US845138

申请日：1997-04-21

申请人： Norio Matsuda

发明人： Norio Matsuda

IPC分类号： F02B75/02 ,  F02B75/34 ,  F02M51/06 ,  F02M57/02 ,  F02M59/10 ,  F02M59/14 ,  F02M69/08 ,  F02M69/10 ,  F02M37/04 ,  F02B33/04

CPC分类号： F02M51/0667 ,  F02B75/34 ,  F02M51/0639 ,  F02M57/028 ,  F02M59/107 ,  F02M59/14 ,  F02M69/08 ,  F02M69/10 ,  F02B2075/025 ,  F02B2075/027

摘要： Fuel is supplied stably to the engine for models under severe operational conditions. The magnetic core 34 is inserted in the solenoid coil 32 in the box 31. The movable valve body 38 is provided in the box 31. The valve body 38 is pressed by the plate spring 44 so as to close the fuel injection opening 37. The check valve 24 is provided on the fuel feeding passage 48. The diaphragm partitions between the air pressure supply passage 25 and the internal of the box 31. The pulsatory air pressure of about 20 to 100 kPa generated in the crank chamber is applied to the fuel in the box 31 through the diaphragm 26. Fuel is introduced into the fuel injector without pressurization and confined by the check valve, and the fuel is pressurized using air which is not affected very much by the force due to acceleration. The air pipe 27 is fixed to the valve body 38 and diaphragm 26, and communicates between the air pressure supply passage 25 and fuel injection opening 37. The fuel introduced into the fuel injector 30 is confined by the check valve 24, and is pressurized with the pulsatory air pressure from the crank chamber at a constant pressure. When injection, air is injected and injected fuel changes to mist. The supply of fuel is stable even under severe operational conditions, the combustion efficiency is improved, and the output of the engine is increased.

摘要翻译： 燃油在恶劣的运行条件下稳定地供给发动机。 磁芯34插入盒31中的螺线管线圈32.可动阀体38设置在盒31中。阀体38被板簧44按压以关闭燃料喷射开口37. 止回阀24设置在燃料供给通道48上。隔膜在空气压力供给通道25和箱体31的内部之间分隔开。曲柄室中产生的约20至100kPa的脉动空气压力被施加到燃料 在盒31中通过隔膜26将燃料引入燃料喷射器而不加压并被止回阀限制，并且使用不受加速度的力影响非常大的空气来加压燃料。 空气管27被固定在阀体38和隔膜26上，并连通在气压供给路25和燃料喷射口37之间。被引导到燃料喷射阀30的燃料由止回阀24限制， 在恒定压力下来自曲柄室的脉动空气压力。 注射时，注入空气并喷射燃油变成雾。 即使在恶劣的运行条件下燃料供应也是稳定的，燃烧效率提高，发动机输出增加。