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    • 2. 发明授权
    • Timing control for fuel injection pump
    • 燃油喷射泵定时控制
    • US4224916A
    • 1980-09-30
    • US959908
    • 1978-11-13
    • Charles W. Davis
    • Charles W. Davis
    • F02D1/18F02M41/14F02M39/00
    • F02M41/1416
    • A fuel injection pump having a mechanically adjustable servo valve for controlling the timing of the pumping event is disclosed. A pivoted lever has one end which engages the spring seat of a timing control plunger servo valve which is also subjected to a speed related hydraulic signal and another end which engages a cam clamped on the throttle shaft to pivot the lever according to the rotational position of the shaft. The profile of the cam is such as to retard the timing of the pumping stroke when the charge delivered by the pump is increased so that pressure built up in the pump is delayed and injection pressure is reached at a substantially constant crankshaft angle regardless of variations in speed and load on the engine. The mechanism is failsafe since it cannot interfere with the movement of the throttle shaft to reduce fuel delivery.
    • 公开了一种具有用于控制泵送事件的定时的可机械调节的伺服阀的燃料喷射泵。 枢转杠杆具有与定时控制柱塞伺服阀的弹簧座接合的一端,该定时控制柱塞伺服阀也经受与速度相关的液压信号,另一端接合夹在节流轴上的凸轮,以使杠杆根据转动位置转动 轴。 凸轮的轮廓是这样的,以便当由泵输送的电荷增加时延迟泵送冲程的定时,使得在泵中建立的压力被延迟并且在基本恒定的曲轴角度下达到喷射压力,而不管变化如何 发动机的速度和负载。 该机构是故障安全的,因为它不能干扰节气门轴的运动以减少燃料输送。
    • 3. 发明授权
    • Fuel injection pump and governor and timing control system therefor
    • 燃油喷射泵和调速器及其定时控制系统
    • US4050432A
    • 1977-09-27
    • US597974
    • 1975-07-22
    • Charles W. DavisRobert RaufeisenDaniel Edwin Salzgeber
    • Charles W. DavisRobert RaufeisenDaniel Edwin Salzgeber
    • F02D1/02F02M41/14F02M59/20
    • F02M41/1416F02M41/1427
    • The present invention provides a liquid fuel injection pump suited for the sequential delivery of measured charges of liquid fuel under high pressure to an associated engine in timed relationship therewith comprising pump chamber means wherein the charges are pressurized to high pressure, a passage for delivering the fuel to said pump chamber means, a metering valve in said passage for reglating the amount of fuel in said measured charges of fuel, said metering valve comprising a pair of relatively movable members respectively having ports in the adjacent surfaces thereof adapted for registry, means to vary the amount of overlap of said ports in a first direction to control the quantity of fuel in each measured charge of fuel in accordance with the load on the associated engine, and means for controlling the relative movement of said members in a second direction transverse to said first direction to vary the amount of overlap of said ports in said second direction in accordance with the speed of the associated engine whereby the amount of overlap in said second direction increases with increased engine speed thereby to maintain the quantity of fuel in sequential charges of fuel at a substantially constant level for a given setting of said means regardless of changes in engine speed.
    • 本发明提供了一种液体燃料喷射泵,其适用于在高压下将测量的液体燃料的电荷顺序传送到相关联的发动机,与其定时关系,包括泵室装置,其中电荷被加压到高压,用于输送燃料的通道 所述泵室装置中的计量阀,用于排放所测量的燃料的燃料中的燃料量,所述计量阀包括一对相对可移动的构件,其相应的表面中分别具有适于注册的装置, 所述端口在第一方向上的重叠量,用于根据相关联的发动机上的负载来控制每个测量的燃料的燃料量,以及用于控制所述构件在横向于所述第二方向的第二方向上的相对运动的装置 第一方向,以根据t改变所述端口在所述第二方向上的重叠量 相关联的发动机的速度,由此在所述第二方向上的重叠量随着发动机转速的增加而增加,从而为了对于所述装置的给定设定而将燃料的连续电荷中的燃料量保持在基本上恒定的水平,而与发动机转速的变化无关 。
    • 4. 发明授权
    • Multiple plunger fuel injection pump
    • 多柱塞燃油喷射泵
    • US3999529A
    • 1976-12-28
    • US578728
    • 1975-05-19
    • Charles W. Davis
    • Charles W. Davis
    • F02M59/36F02M41/08
    • F02M59/361
    • A multiple plunger fuel injection pump includes a pair of axially positionable interconnected control sleeves encircling each plunger for controlling the quantity and timing of fuel delivered by the plunger. Speed and load response actuators are operative to control the axial positioning of each sleeve of each pair of control sleeves. Adjustment means are provided for separately adjusting, during operation of the injection pump, the axial positioning of each sleeve to balance the timing and quantity of fuel delivered by each plunger with respect to the other plungers.
    • 多柱塞燃料喷射泵包括一对围绕每个柱塞的可轴向定位的互连的控制套筒,用于控制由柱塞输送的燃料的数量和时间。 速度和负载响应致动器可操作以控制每对控制套管的每个套筒的轴向定位。 提供调节装置,用于在注射泵的操作期间分别调节每个套筒的轴向定位,以平衡由每个柱塞相对于另一个柱塞输送的燃料的时间和数量。
    • 7. 发明授权
    • Fuel injection pump with spill control mechanism
    • 燃油喷射泵具有溢油控制机构
    • US4376432A
    • 1983-03-15
    • US253208
    • 1981-04-13
    • Charles W. Davis
    • Charles W. Davis
    • F02M41/14F02M39/00
    • F02M41/1411
    • A fuel injection pump is provided with an improved spill control mechanism to accurately supply a desired fuel charge to an internal combustion engine. The fuel pump includes a rotor having a charge pump for pressurizing measured charges of fuel for delivery to the engine and a cam ring adapted to rotatably receive the rotor and to actuate the charge pump upon rotation of the rotor. The cam ring is angularly adjustable to control the timing of the pressurized fuel delivery to the engine. A spill collar mounted adjacent to the cam ring and adapted to rotatably receive the rotor includes a spill port for diverting fuel flow from the charge pump upon registration of a spill passage in the rotor with the spill port in the collar. A pivotal crank mounted on the cam ring and engageable with the spill collar is provided for adjusting the angular position of the spill collar relative to the cam ring to control the amount of fuel diverted from the charge pump. The fuel pump preferably includes a governor mechanism operable upon rotation of the rotor and operatively connected to the crank for automatically adjusting the angular position of the spill collar to maintain a desired engine speed.
    • 燃料喷射泵设置有改进的溢出控制机构,以准确地向内燃机提供所需的燃料。 燃料泵包括具有电荷泵的转子,该电荷泵用于对测量的用于输送到发动机的燃料的电荷进行加压;以及凸轮环,其适于可转动地容纳转子并且在转子旋转时致动电荷泵。 凸轮环角度可调,以控制加压燃油输送到发动机的时间。 安装在凸轮环附近并适于可旋转地接收转子的溢出轴环包括溢流口,用于在转子中的溢流通道对准时将来自电荷泵的燃料流转向,同时泄漏口位于轴环中。 提供安装在凸轮环上并与溢流轴环接合的枢转曲柄,用于调节溢流环相对于凸轮环的角位置,以控制从电荷泵转移的燃料量。 燃料泵优选地包括调节器机构,该调速器机构可在转子旋转时操作并可操作地连接到曲柄,用于自动调节溢流轴环的角位置以保持期望的发动机转速。
    • 8. 发明授权
    • Double-acting differential piston supply pump
    • 双作用差动活塞泵
    • US4149831A
    • 1979-04-17
    • US859846
    • 1977-12-12
    • Charles W. Davis
    • Charles W. Davis
    • F04B11/00F04B3/00F04B5/02F04B5/00F04B25/02
    • F04B3/00F04B5/02
    • A supply pump comprising a body having an inlet and an outlet both in fluid communication with an interior region of the body which contains two pistons positioned to reciprocate coaxially and which define three variable volume chambers, one between the two pistons and in fluid communication with the inlet, a second between one piston and the outlet and a third between the other piston and the outlet. The pistons have different working areas, and the piston of larger area carries a check valve which allows fluid flow from the chamber between the pistons to the chamber between the larger piston and the outlet. A regulating spring acts between the body and the smaller piston to urge both pistons against a mechanical drive means including a reciprocable rod carried by a tappet contacting a driven cam. During each forward and reverse stroke of the pistons in response to rotation of the cam, supply fluid is drawn into the pump through the inlet and forced out of the pump through the outlet.
    • 一种供应泵,其包括具有入口和出口的本体,所述入口和出口与所述主体的内部区域流体连通,所述入口和出口包含两个定位成同轴地往复运动的活塞,并且限定三个可变容积室,一个位于所述两个活塞之间并与所述两个活塞流体连通 入口,一个活塞和出口之间的第二个,另一个活塞和出口之间的第三个。 活塞具有不同的工作区域,较大面积的活塞带有止回阀,该止回阀允许流体从活塞之间的室流到较大活塞和出口之间的室。 调节弹簧作用在主体和较小的活塞之间,以将两个活塞推向机械驱动装置,该机械驱动装置包括由挺杆接触驱动凸轮所承载的往复杆。 在响应于凸轮的旋转的活塞的每个前进和后退行程期间,供应流体通过入口被抽吸到泵中并通过出口被迫离开泵。
    • 10. 发明授权
    • Fuel injection pump
    • 燃油喷射泵
    • US4255097A
    • 1981-03-10
    • US62356
    • 1979-07-31
    • Charles W. DavisCharles J. Donahue
    • Charles W. DavisCharles J. Donahue
    • F02M41/14F04B1/10F04B1/107F04B1/113F04B29/00
    • F02M41/1405
    • This invention relates to fuel injection pumps of the type employed for supplying measured charges of fuel to the nozzles of an associated internal combustion engine. More particularly, the invention relates to such fuel pumps of the rotary distributor type having pumping plungers which are slidably mounted in radial bores of a rotary distributor and are surrounded by a generally circular cam ring having pairs of inwardly directed cam lobes which actuate pairs of pumping plungers inwardly simultaneously for pressurizing the charge of fuel between the plungers to a high pressure.The subject invention overcomes the above problems by angularly spacing a pair of pumping plungers and the cooperating cam lobes as required for the specific engine application and avoids the undesired side loading by creating a hydraulic counterbalancing force which automatically changes as the side loading created by the reaction forces between the cam lobes and the pumping plungers changes with speed and rate of delivery of fuel. This is accomplished without introducing any added moving parts to the pump.
    • 本发明涉及用于将相关内燃机的喷嘴的测量的燃料量提供给燃料喷射泵。 更具体地说,本发明涉及这样的旋转分配器类型的燃料泵,其具有可滑动地安装在旋转分配器的径向孔中的泵送柱塞,并且由具有成对的向内指向的凸轮凸角的大致圆形的凸轮环围绕, 同时向内活塞,以将柱塞之间的燃料加压加压至高压。 本发明克服了上述问题,通过按照特定发动机应用的需要角度地间隔一对泵送柱塞和配合的凸轮凸角,并通过产生液压平衡力避免不需要的侧向负载,该液压平衡力随反应产生的侧向载荷而自动变化 凸轮凸角和抽吸柱塞之间的力随着燃料的输送速度和速度而变化。 这是在没有向泵中引入任何添加的运动部件的情况下完成的