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    Fuel pump attachment structure
    61.
    发明授权
    Fuel pump attachment structure 失效
    燃油泵附件结构

    公开(公告)号：US08646436B2

    公开(公告)日：2014-02-11

    申请号：US13173227

    申请日：2011-06-30

    Applicant: Keisuke Wakabayashi ,  Yoshiaki Sumiya ,  Hirotsugu Kojima ,  Shuji Yamaguchi

    Inventor： Keisuke Wakabayashi ,  Yoshiaki Sumiya ,  Hirotsugu Kojima ,  Shuji Yamaguchi

    IPC: F02M37/04

    CPC classification number: F02M37/043 ,  F02F7/006 ,  F02M37/06 ,  F02M39/02

    Abstract: A fuel pump attachment structure is provided that includes a cylinder head; a cylinder head cover joined to a top surface of the cylinder head; a bracket mounted to the top surface of the cylinder head so as to be located at a position outside the cylinder head cover; and a fuel pump attached to the bracket. The fuel pump is inserted into an opening formed in the cylinder head cover. A sealing member is arranged between an outer surface of the fuel pump and a surface of the cylinder head cover that defines the opening. Alternatively, a pressing portion is formed in a lower portion of the bracket. The pressing portion presses a pressed portion formed on a periphery of the cylinder head cover from above by means of a bolt that is inserted into the pressing portion and fastened to the cylinder head.

    Abstract translation: 提供了一种燃料泵附接结构，其包括气缸盖; 连接到气缸盖的顶表面的气缸盖罩; 安装在气缸盖的上表面的支架，以便位于气缸盖罩外侧的位置; 以及附接到支架的燃料泵。 燃料泵被插入形成在气缸盖罩中的开口中。 密封构件设置在燃料泵的外表面和限定开口的气缸盖罩的表面之间。 或者，在支架的下部形成有按压部。 按压部分通过插入到按压部分中并紧固到气缸盖上的螺栓从上方按压形成在气缸盖罩的周边上的按压部分。

    Fuel pump seal and insulator assembly
    62.
    发明授权
    Fuel pump seal and insulator assembly 失效
    燃油泵密封和绝缘子组件

    公开(公告)号：US5603304A

    公开(公告)日：1997-02-18

    申请号：US594993

    申请日：1996-01-31

    Applicant: Stanley E. Matczak

    Inventor： Stanley E. Matczak

    IPC: F02M37/04

    CPC classification number: F02M37/043

    Abstract: A fuel pump insulator assembly is mounted on a fuel pump. The fuel pump insulator assembly comprises insulating fasteners, an insulating gasket and a seal. The insulating gasket provides a thermal barrier between an engine and a fuel pump, whereby heat from the engine is not transferred to the fuel pump. The seal seals the fuel pump from the engine, whereby hot engine oil is not allowed to splash into the fuel pump. The insulating fasteners reduce heat transfer from the engine through the fasteners to the fuel pump. The insulating fasteners each comprise a elongated cylindrical body portion having an opening longitudinally therethrough with an insulating washer disposed at one end thereof. The insulating gasket has opposing flange portions which depend from a main portion with an elongated opening therethrough. The seal comprises a flange mounting seal portion with a fuel arm seal portion depending therefrom. The flange mounting seal portion has opposing flange portions which depend from a main portion with an opening therethrough. The fuel arm seal portion depends from the flange mounting seal portion and includes an opening or flap through which the fuel pump arm of the fuel pump passes.

    Abstract translation: 燃油泵绝缘体组件安装在燃油泵上。 燃料泵绝缘体组件包括绝缘紧固件，绝缘垫圈和密封件。 绝缘衬垫在发动机和燃料泵之间提供热障，由此来自发动机的热量不会传递到燃料泵。 密封件将燃油泵从发动机密封，从而不允许热机油溅入燃油泵。 绝缘紧固件减少了从发动机通过紧固件到燃油泵的热传递。 绝缘紧固件各自包括细长的圆柱形主体部分，其具有纵向穿过的开口，其一端设置有绝缘垫圈。 绝缘衬垫具有相对的凸缘部分，该凸缘部分从具有穿过其中的细长开口的主要部分延伸。 密封件包括具有从其悬垂的燃料臂密封部分的凸缘安装密封部分。 凸缘安装密封部分具有相对的凸缘部分，该凸缘部分从具有开口的主要部分延伸。 燃料臂密封部分由法兰安装密封部分组成，并且包括燃料泵的燃料泵臂通过的开口或阀瓣。

    Internally regulated self priming fuel pump assembly
    63.
    发明授权
    Internally regulated self priming fuel pump assembly 失效
    内部调节自吸式燃油泵总成

    公开(公告)号：US5573381A

    公开(公告)日：1996-11-12

    申请号：US492505

    申请日：1995-06-20

    Applicant: Michael F. Pane ,  James J. Grinsteiner ,  Martin R. Zielke

    Inventor： Michael F. Pane ,  James J. Grinsteiner ,  Martin R. Zielke

    IPC: F02M37/04 ,  F04B3/00 ,  F04B11/00 ,  F04B49/22 ,  F04B49/00

    CPC classification number: F04B49/22 ,  F02M37/043 ,  F04B11/0033 ,  F04B3/003

    Abstract: A dual-piston fuel pump assembly includes a housing having an inlet to a primary chamber and an outlet from a pumping chamber. Between the primary and pumping chambers are interposed concentric inner and outer pistons. Each piston is independently spring biased toward the pumping chamber. The inner piston is mechanically driven by an engine associated reciprocating drive and pumping action occurs as a result of the spring operating on the inner piston. The position of the outer piston relative to the inner piston is determined by the pressure in the pumping chamber as regulated by the force of the spring operating against the outer piston. When pressure in the pumping chamber exceeds predefined limits, the outer piston opens regulator ports disposed on the inner piston to recirculate fuel back into the low pressure primary chamber. Additionally, the outer piston acts as an accumulator to dampen pressure spikes.

    Abstract translation: 双活塞燃料泵组件包括具有到主室的入口和来自泵送室的出口的壳体。 在主室和泵室之间插入有同心的内部和外部活塞。 每个活塞独立地弹簧偏压到泵送室。 内部活塞由发动机相关联的往复驱动机械驱动，并且由于弹簧在内部活塞上的作用而发生泵送作用。 外部活塞相对于内部活塞的位置由泵送室中的压力决定，该压力由弹簧的作用力抵抗外部活塞的力来调节。 当泵送室中的压力超过预定义的限制时，外部活塞打开设置在内部活塞上的调节器端口，以将燃料再循环回低压主室。 此外，外活塞用作蓄能器以抑制压力尖峰。

    Fuel-injection arrangement for an internal combustion engine
    64.
    发明授权
    Fuel-injection arrangement for an internal combustion engine 失效
    用于内燃机的燃油喷射装置

    公开(公告)号：US5353754A

    公开(公告)日：1994-10-11

    申请号：US93155

    申请日：1993-07-19

    Applicant: Michael Wissmann ,  Hans Nickel ,  Roland Schierling ,  Roland Adam ,  Manfred Thaiss ,  Werner Geyer

    Inventor： Michael Wissmann ,  Hans Nickel ,  Roland Schierling ,  Roland Adam ,  Manfred Thaiss ,  Werner Geyer

    IPC: F02B75/02 ,  F02M37/04 ,  F02M37/12 ,  F02M55/04 ,  F02M59/10 ,  F02M59/14 ,  F02M59/46 ,  F02M69/10 ,  F02M69/34 ,  F04B45/053 ,  F04B53/00 ,  F02B33/04

    CPC classification number: F02M69/34 ,  F02M37/043 ,  F02M37/12 ,  F02M55/04 ,  F02M59/107 ,  F02M59/14 ,  F02M69/10 ,  F02B2075/025 ,  Y10S123/05

    Abstract: The invention is directed to a fuel-injection arrangement for a two-stroke engine in a motor-driven chain saw. An injection pump is mounted in a base housing with the injection pump including a pump piston axially displaceable in a pump cylinder. The pump piston delimits a pump chamber. The pump chamber is connected via a suction valve to a fuel tank. The fuel drawn by suction is pumped by the pump piston via a pressure valve, an injection line and an injection valve to the engine. For driving the pump piston, the latter is connected at one end to a membrane via a membrane plate. The membrane delimits a work chamber charged with fluctuating crankcase pressure. A simple assembly is provided by arranging the pump chamber, the suction valve and the pressure valve in a common valve housing which, in turn, is seated in the base housing of the injection pump in a seal-tight manner. The injection line is connected directly to the valve housing. This permits a preassembly of the valve housing with the valves provided therein which facilitates the manufacture of the fuel-injection arrangement.

    Abstract translation: 本发明涉及一种用于电动链锯中的二冲程发动机的燃料喷射装置。 注射泵安装在基座壳体中，注射泵包括在泵缸中可轴向移位的泵活塞。 泵活塞限定泵室。 泵室通过吸入阀连接到燃料箱。 通过抽吸抽吸的燃料由泵活塞通过压力阀，注射管线和喷射阀泵送到发动机。 为了驱动泵活塞，后者通过膜板在一端连接到膜。 隔膜界定了带有波动的曲轴箱压力的工作室。 通过将泵室，吸入阀和压力阀布置在共同的阀壳中来提供简单的组件，该阀壳又以密封的方式安置在注射泵的基座中。 注射管线直接连接到阀壳体。 这允许阀壳体与其中设置的阀预组装，这有助于燃料喷射装置的制造。

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