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公开(公告)号：US5044344A
公开(公告)日：1991-09-03
申请号：US421810
申请日：1989-10-16
CPC分类号： F02D41/0025 , F02D19/0605 , F02D19/0628 , F02D19/0665 , F02D19/084 , F02D19/087 , F02D41/3082 , F02M37/08 , F02D2200/0602 , F02D2200/0611 , F02M2037/087 , Y02T10/36
摘要： A fuel delivery system for an internal combustion engine that includes a fuel supply with a fuel pump responsive to application of electrical power for supplying fuel under pressure to fuel injectors mounted on the engine. A pressure sensor is coupled to the pump/injector fuel delivery line for measuring fuel delivery pressure. A second sensor is positioned within the fuel tank and is responsive to fuel alcohol concentration. The pump motor is energized by a pulsed d.c. signal having a duty cycle that varies as a combined function of the pressure and alcohol-concentration sensor output signals so as to maintain constant fuel pressure at the injectors while automatically compensating quantity of fuel delivered by the injectors for differing fuel alcohol concentrations.
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公开(公告)号：US4964787A
公开(公告)日：1990-10-23
申请号：US333906
申请日：1989-04-06
申请人： Thomas M. Hoover
发明人： Thomas M. Hoover
CPC分类号： F01C21/007 , F02M37/103
摘要： A mounting system for electric pumps used in automotive vehicles, especially those in which the pump is installed in the fuel tank. To reduce pump and pump motor vibrations and noise, which may be objectionable to passengers, the pump is mounted within a cage enclosure carried in the vehicle fuel tank. A suspension for the pump within the cage consists of leaf spring strike-outs in the walls of the cage unit which contact the outer walls and ends of the pump housing to provide a resilient suspension radially and axially.
摘要翻译： 用于机动车辆的电动泵的安装系统，特别是将泵安装在燃料箱中的电动泵。 为了减少泵和泵的电动机振动和噪音，这可能对乘客是不利的，泵被安装在车辆燃料箱中的笼壳内。 用于保持架内的泵的悬架由保持架单元的壁中的板簧突出部分组成，其接触泵壳体的外壁和端部以径向和轴向地提供弹性悬架。
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公开(公告)号：US5018498A
公开(公告)日：1991-05-28
申请号：US445408
申请日：1989-12-04
申请人： Thomas M. Hoover
发明人： Thomas M. Hoover
CPC分类号： F02D35/023 , F02D41/1498 , F02B2275/14 , F02D2041/389 , F02D2200/1015 , F02D35/022 , Y02T10/123
摘要： In an internal combustion engine that includes at least one cylinder having a piston coupled to an engine crankshaft, a fuel injector coupled to a fuel supply and responsive to electronic signals for feeding fuel from the supply directly into the cylinder, and an air supply that includes a throttle valve responsive to electronic signals for controlling quantity of combustion air fed to the cylinder, a method and system for controlling the air/fuel ratio within the cylinder to obtain combustion at or near the lean limit beyond which the engine misfires. Actual combustion is monitored and compared as a function of crank angle with a predetermined combustion characteristic indicative of operation at the lean burn limit. The throttle valve is controlled as a function of the resulting error signal to restrict air supply to the combustion cylinder so that cylinder combustion approaches the predetermined lean burn characteristic.
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公开(公告)号：US5002467A
公开(公告)日：1991-03-26
申请号：US312259
申请日：1989-02-17
CPC分类号： F02B77/13 , F02M37/103
摘要： A mounting system for electric pumps used in automotive vehicles, especially those in which the pump is installed in the fuel tank. To reduce pump and pump motor vibrations and noise, which may be objectionable to passengers, the pump is mounted within a jacket enclosure carried in the vehicle fuel tank. A suspension for the pump within the jacket consists of identical mount rings of relatively soft flexible material which has internal and external relatively thin projections to contact the inner walls of the jacket on the outside of the ring and to contact the pump housing on the inside of the ring. Radial continuations of the projections establish the axial location of the pump within the jackets.
摘要翻译： 用于机动车辆的电动泵的安装系统，特别是将泵安装在燃料箱中的电动泵。 为了减少泵和泵的电机振动和噪音，这可能对乘客是不利的，泵被安装在车辆燃料箱中的护套外壳内。 用于套管内的泵的悬架由相对柔软的柔性材料的相同的安装环构成，其具有内部和外部相对较薄的突出部分，以便在环的外侧上接触护套的内壁并将泵外壳 戒指。 突起的径向延伸确定泵在夹套内的轴向位置。
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公开(公告)号：US4964391A
公开(公告)日：1990-10-23
申请号：US358860
申请日：1989-05-30
申请人： Thomas M. Hoover
发明人： Thomas M. Hoover
CPC分类号： F02M37/0023 , F02M69/46 , F02M2200/30 , Y10T137/7932
摘要： In a fuel delivery system that includes a pump for supplying fuel under pressure from a supply to an internal combustion engine, a check valve is positioned between the pump and the engine for preventing back-flow of fuel from the engine to the pump. The valve has a flow passage with a central axis and a valve seat orientated away from the pump. A valve element is positioned within the passage for axial motion against a coil spring as a function of fuel pressure from the pump. The coil spring is captured in compression between the valve element and a guide positioned downstream of the valve element within the flow passage. A stem that extends axially from the valve element is slidably disposed in a central bore in the guide. An orifice couples the bore to the fluid flow passage. The guide and valve stem thereby not only restrain lateral motion of the valve element within the passage, but also form a piston/cylinder construction that cooperates with the orifice to dampen axial motion of the valve element. Thus, axial and lateral motions of the valve element are stabilized, greatly reducing the vibrational signature of the pump and check valve system, and reducing pressure pulses delivered from the pump to the engine.
摘要翻译： 在燃料输送系统中，包括用于在供应到内燃机的压力下供应燃料的泵，止回阀位于泵和发动机之间，用于防止燃料从发动机回流到泵。 该阀具有一个具有中心轴线的流动通道和一个远离泵的阀座。 阀元件位于通道内，用于根据来自泵的燃料压力与螺旋弹簧的轴向运动。 螺旋弹簧在阀元件和位于流动通道内的阀元件下游的引导件之间被压缩地捕获。 从阀元件轴向延伸的杆可滑动地设置在导向件中的中心孔中。 孔将孔连接到流体流动通道。 引导阀和阀杆不仅可以约束阀元件在通道内的横向运动，而且可以形成与孔口配合以阻尼阀元件的轴向运动的活塞/缸体结构。 因此，阀元件的轴向和横向运动被稳定，大大降低了泵和止回阀系统的振动特征，并且减少了从泵传递到发动机的压力脉冲。
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公开(公告)号：US4961693A
公开(公告)日：1990-10-09
申请号：US284996
申请日：1988-12-16
CPC分类号： F02M37/10
摘要： A mounting for an electric fuel pump in a fuel tank of a passenger vehicle which includes an oversize, open-ended enclosure to surround a pump within the fuel tank. The enclosure is mounted on a pipe depending into the fuel tank from a cantilever connection. The pump is floatingly mounted in the enclosure by conical coil springs at each end seated respectively on the pump housing and inner flanges of the enclosure. The enclosure is formed of two telescoping portions clamped together by a plate which also traps the depending pipe to support the assembly within the fuel tank.
摘要翻译： 用于乘客车辆的燃料箱中的电动燃料泵的安装件，其包括围绕燃料箱内的泵的尺寸过大的开放式外壳。 外壳通过悬臂连接安装在取决于燃料箱的管道上。 泵通过锥形螺旋弹簧浮动地安装在外壳中，每个端部分别位于泵壳体和外壳的内部凸缘上。 外壳由两个伸缩部分构成，该两个伸缩部分由板夹住在一起，该平板还捕集悬垂管以将组件支撑在燃料箱内。
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