公开(公告)号：US4714412A

公开(公告)日：1987-12-22

申请号：US941867

申请日：1986-12-15

Applicant: Wilfried Bohringer ,  Franz Eheim ,  Gerald Hofer ,  Karl Konrath ,  Helmut Laufer

Inventor： Wilfried Bohringer ,  Franz Eheim ,  Gerald Hofer ,  Karl Konrath ,  Helmut Laufer

IPC: F02M41/12 ,  F02M59/36 ,  F02M59/38 ,  F04B49/02 ,  F04B49/00

CPC classification number: F02M59/361 ,  F02M41/126

Abstract: A fuel injection pump which has a shutoff device for the fuel supply to the pump work chamber, comprising a magnetic valve, which controls an intake bore to the work chamber of the fuel injection pump. The fuel injection pump further has a relief conduit, which is connected by an annular slide on the pump piston with the suction chamber in order to terminate the effective supply stroke of the pump piston. In order to assure reliable shutoff of the fuel supply to the pump work chamber, a check valve is further disposed in the connection between the pump work chamber and the suction chamber, which check valve is closed, during the intake stroke of the pump piston, with the collaboration of the pressure drop from the suction chamber to the pump work chamber.

公开(公告)号：US4655184A

公开(公告)日：1987-04-07

申请号：US382002

申请日：1982-05-25

Applicant: Konrad Eckert ,  Hermann Eisele ,  Helmut Laufer ,  Max Straubel

Inventor： Konrad Eckert ,  Hermann Eisele ,  Helmut Laufer ,  Max Straubel

IPC: F02D41/40 ,  F02D1/02 ,  F02M41/12 ,  F02M59/02 ,  F02M59/34 ,  F02M59/36 ,  F02M39/00

CPC classification number: F02M41/128 ,  F02M41/125 ,  F02M59/34 ,  F02M59/366

Abstract: A fuel injection apparatus for internal combustion engines in which beyond a predetermined remaining stroke during the supply stroke of the pump piston, a relief conduit is opened via a control edge. The same control edge closes the relief conduit once again during the intake stroke. During the subsequent effective intake stroke, the quantity of fuel to be injected upon the following compression stroke is metered by means of the electrically actuatable valve. The magnetic valve here is already opened before the closure of the relief conduit by the control edge, so that in the opening phase of the relief conduit, the pump work chamber of the fuel injection apparatus is flushed. In this manner, precise metering of the quantity of fuel to be injected is attained.

Abstract translation: 一种用于内燃机的燃料喷射装置，其中在泵活塞的供给冲程期间超过预定的剩余行程，经由控制边缘打开释放导管。 在进气冲程期间，相同的控制边缘再次关闭卸压管道。 在随后的有效进气冲程期间，通过电致动阀计量在随后的压缩冲程中喷射的燃料量。 这里的电磁阀在通过控制边缘封闭释放导管之前已经打开，使得在释放导管的开启阶段，喷射装置的泵工作室被冲洗。 以这种方式，可以精确计量待喷射的燃料量。

公开(公告)号：US4594989A

公开(公告)日：1986-06-17

申请号：US677173

申请日：1984-12-03

Applicant: Helmut Laufer

Inventor： Helmut Laufer

IPC: F02D1/18 ,  F02M41/12 ,  F02M39/00

CPC classification number: F02M41/128 ,  F02D1/183

Abstract: A fuel injection pump is provided with an injection start adjustor, in accordance with which an injection adjusting piston is loaded by a pump number of revolutions-dependent fuel pressure of a feed pump against a spring force provided by two pressure springs, of which a first stronger spring in the region of lower number of revolutions acts against a second weaker spring and from a predetermined adjusting path and higher number of revolutions it acts alone.

Abstract translation: 燃料喷射泵设置有喷射启动调节器，根据该喷射启动调节器，针对由两个压力弹簧提供的弹簧力，喷射调节活塞通过供给泵的与转数相关的燃料压力加载，其中第一 在较低转数区域内的较强的弹簧对着第二较弱的弹簧起作用，并且从预定的调节路径起作用，并且其单独起作用的较高的转数。

公开(公告)号：US4577606A

公开(公告)日：1986-03-25

申请号：US671432

申请日：1984-11-13

Applicant: Wilfried Bohringer ,  Franz Eheim, deceased ,  Wolfgang Fehlmann ,  Helmut Laufer ,  Karl Zibold

Inventor： Wilfried Bohringer ,  Franz Eheim, deceased ,  Wolfgang Fehlmann ,  Helmut Laufer ,  Karl Zibold

IPC: F02M59/46 ,  F02M63/00 ,  F02M39/00

CPC classification number: F02M59/462 ,  F02B2275/14 ,  F02M2200/30 ,  Y02T10/123 ,  Y10T137/7774

Abstract: In a pressure valve inserted in a fuel supply conduit between a fuel injection pump and an injection vavle of the internal combustion chamber and comprising a valve member and a locking member cooperating with the valve member and opening in the direction of the fuel supply, and a back-pressure relief valve including a closing element which closes an axial bore of the locking member, a throttle orifice is provided in the connection between the axial bore of the locking member and an axial recess formed in the connection element connected to the fuel supply conduit leading to the internal combustion engine so that no after-injections occur, and a sufficiently great stable pressure is maintained in the fuel supply system.

Abstract translation: 在插入在燃料喷射泵和内燃室的喷射阀之间的燃料供应管道中的压力阀中，包括阀构件和与阀构件配合并沿着燃料供给方向的开口的锁定构件，以及 背压释放阀，包括封闭锁定构件的轴向孔的关闭元件，节流孔设置在锁定构件的轴向孔之间的连接中，并且形成在连接到燃料供应导管的连接元件中的轴向凹部 导致内燃机，使得不会发生后喷射，并且在燃料供应系统中保持足够大的稳定压力。

公开(公告)号：US4539964A

公开(公告)日：1985-09-10

申请号：US634546

申请日：1984-07-26

Applicant: Ilja Djordjevic ,  Franz Eheim ,  Helmut Laufer

Inventor： Ilja Djordjevic ,  Franz Eheim ,  Helmut Laufer

IPC: F02M41/12 ,  F02M51/00 ,  F02M59/48 ,  F02M37/04

CPC classification number: F02M51/005 ,  F02M41/126 ,  F02M59/48

Abstract: To provide for accurate alignment of a housing (10) retaining a fuel injection element (12, 15), and a second housing (23) retaining a control element controlling a function of the fuel injection element, in which the relative positions of the pump housing (10) and of the control element housing (23) are determinative of adjustment and alignment of interengagement between the injection element and the control element, the two housings are provided with attachment screws to attach them securely together, while permitting respective removal, for example for replacement of a sealing gasket (26), and to insure precisely aligned re-assembly, the housings include position locating means (27-34, 35') such as interengaging projection-and-recess means (40, 50, 60, 70, 80, 90, 100, 110; 37, 47, 57, 67, 77, 87, 97, 107) which accurately position the housings with respect to each other, and which are positionable after the housings have been first assembled and aligned to provide for said adjusted and aligned interengagement of the injection element and the control element and reestablishment of said aligned position after separation of the housings. The housings may, also, be spot-welded at selected points beyond break-away zones so that, upon breaking away of the spot welds, they can be separated, with subsequent re-alignment based on the break-away zones.

Abstract translation: 为了提供保持燃料喷射元件（12,15）的壳体（10）和保持控制燃料喷射元件的功能的控制元件的第二壳体（23）的精确对准，其中泵的相对位置 壳体（10）和控制元件壳体（23）决定了注射元件和控制元件之间的相互接合的调整和对准，两个壳体设置有附接螺钉，以将它们牢固地附接在一起，同时允许相应的移除， 例如用于更换密封垫圈（26）并确保精确对准的重新组装，壳体包括位置定位装置（27-34,35'），例如相互接合的突出和凹陷装置（40,50,60， 70,80,90,100,110,37,47,57,67,77,87,97,107,107），其将壳体相对于彼此精确定位，并且在壳体首次组装和对准之后可定位 提供所述调整 以及注射元件和控制元件的对准的相互接合并且在分离壳体之后重新建立所述对准位置。 这些外壳也可以在超出断开区域的选定点进行点焊，使得在点焊断裂时，它们可以分离，随后基于脱离区重新对准。

公开(公告)号：US4535742A

公开(公告)日：1985-08-20

申请号：US595189

申请日：1984-03-30

Applicant: Helmut Laufer ,  Helmut Pfeifle ,  Max Straubel

Inventor： Helmut Laufer ,  Helmut Pfeifle ,  Max Straubel

IPC: F02M41/12 ,  F02M59/02 ,  F02M59/26 ,  F02M59/36 ,  F02M39/00

CPC classification number: F02M41/123 ,  F02M41/128 ,  F02M59/366 ,  F02B2275/14 ,  Y02T10/123

Abstract: A fuel injection pump for internal combustion engines, in which beyond a predetermined remnant stroke during the supply stroke of the pump piston a relief conduit is opened via a first control edge and the remaining fuel pumped by the pump piston is pumped into a reservoir connected there. During the subsequent intake stroke, the diverted fuel is pumped back into the pump work chamber of the pump piston, until the first control edge again closes the relief conduit. During the subsequent intake stroke of the pump piston, in particular at the bottom dead center position of the pump piston, the relief conduit to the reservoir is once again opened by a second control edge, and then a complete relief of the reservoir is attained. It is during this phase that the metering of the fuel to be injected during the next supply stroke of the pump piston also takes place, via a magnetic valve. With an apparatus of this kind, it is advantageous that the fuel quantity per supply stroke of the pump piston that is actually to be injected can be metered exactly by means of a magnetic valve under pressure conditions that remain constant despite variable opening times.

Abstract translation: 一种用于内燃机的燃料喷射泵，其中在泵活塞的供给冲程期间超过预定的剩余行程，释放管经由第一控制边缘打开，并且由泵活塞泵送的剩余燃料被泵入与其连接的储存器 。 在随后的进气冲程期间，转向的燃料被泵送回泵活塞的泵工作室，直到第一控制边缘再次关闭释放管道。 在泵活塞的随后的进气冲程期间，特别是在泵活塞的下死点位置，通过第二控制边缘再次打开到储油器的排放管，然后获得储存器的完全释放。 正是在这个阶段，在泵活塞的下一次供给冲程期间，通过电磁阀进行喷射的燃料计量。 使用这种装置，有利的是，实际上要注射的泵活塞的每供应冲程的燃料量可以通过电磁阀精确地在压力条件下计量，压力条件尽管可变的打开时间保持恒定。

公开(公告)号：US4409939A

公开(公告)日：1983-10-18

申请号：US232443

申请日：1981-02-06

Applicant: Franz Eheim ,  Gerald Hofer ,  Helmut Laufer

Inventor： Franz Eheim ,  Gerald Hofer ,  Helmut Laufer

IPC: F02M41/06 ,  F02M41/12 ,  F02M59/20 ,  F02M59/32

CPC classification number: F02M41/126 ,  F02M41/06 ,  F02M59/205 ,  F02M59/32

Abstract: A fuel injection system is proposed which has a high-pressure pump, a fuel reservoir determining the injection pressure, and an intermediate piston, during whose first half-stroke meters fuel under low pressure and during a second half-stroke, driven by the reservoir, injects the metered fuel. In order to vary the duration of injection, the pressure in the reservoir is determined either by means of the supply quantity of the high-pressure pump or by means of an appropriate pressure control valve in an outflow conduit.

Abstract translation: 提出了一种燃料喷射系统，其具有高压泵，确定喷射压力的燃料储存器和中间活塞，在其第一次半冲程期间，在低压下和在第二半冲程期间的燃料在储存器 注入计量燃料。 为了改变喷射持续时间，储存器中的压力可以通过高压泵的供给量或通过流出管道中适当的压力控制阀确定。

公开(公告)号：US4133498A

公开(公告)日：1979-01-09

申请号：US848598

申请日：1977-11-04

Applicant: Helmut Laufer

Inventor： Helmut Laufer

IPC: G11B15/44 ,  G03B1/04 ,  G11B15/32

CPC classification number: G11B15/442 ,  Y10T74/1921

Abstract: A drive device for a tape recorder by which the recording tape is drawn off one spool by means of a capstan, and is wound-up on another spool, which is driven over a friction coupling by a motor with a speed not substantially above the highest required winding speed, with a drive device driven by the same motor, the drive device for the purpose of fast rewinding being selectively coupleable on one of the two spools. The two drive gears are arranged on a swingable carrier arm driven continuously in oppsite working directions by a stationarily arranged motor via a belt. By swinging the carrier arm in opposite operating directions out of a neutral center position, the drive gears are coupleable from time to time with one of the spool-carrying winding spindles for fast rewinding. One of the drive gears, which is coaxially seated over a friction clutch, is connected with another drive gear of smaller diameter, the latter in a neutral center position of the carrier arm being able to be brought into engagement with still another drive gear by means of an axial movement of one of these other drive gears, said still another drive gear being coaxially seated on the winding spindle which carries the spool which in the play-operation serves as the winding-up spool.

Abstract translation: 一种用于磁带记录器的驱动装置，通过该驱动装置，记录带通过主导轴从一个卷轴上被抽出，并且被卷绕在另一个卷轴上，该卷轴由电动机以摩擦力驱动，速度基本上不高于最高 所需的卷绕速度，由同一马达驱动的驱动装置，用于快速重绕的驱动装置选择性地连接在两个卷轴之一上。 两个驱动齿轮被布置在通过一个固定布置的马达经由皮带连续地以开角工作方向驱动的摆动托架臂上。 通过使托架臂在相反的操作方向上摆动中立位置，驱动齿轮可随时与其中一个卷轴承载卷绕轴相配合，从而快速重绕。 与摩擦离合器同轴位置的驱动齿轮中的一个与另一个较小直径的传动齿轮连接，该传动齿轮在承载臂的空档中心位置能够通过装置与另一驱动齿轮啮合 这些其他驱动齿轮中的一个的轴向运动，所述另一个驱动齿轮同轴地安置在卷绕轴上，承载卷轴，该卷轴在播放操作中用作卷绕卷轴。

公开(公告)号：US5386810A

公开(公告)日：1995-02-07

申请号：US61415

申请日：1993-05-12

Applicant: Roland Gronenberg ,  Helmut Laufer ,  Werner Fischer ,  Dietbert Schoenfelder ,  Joachim Berger

Inventor： Roland Gronenberg ,  Helmut Laufer ,  Werner Fischer ,  Dietbert Schoenfelder ,  Joachim Berger

IPC: F02D41/20 ,  F02B1/04 ,  F02B3/06 ,  F02D41/24 ,  F02D41/34 ,  F02D41/38 ,  F02D41/40 ,  F02D45/00 ,  F02M7/00

CPC classification number: F02D41/28 ,  F02D41/0097 ,  F02D41/38 ,  F02D41/401 ,  F02B1/04 ,  F02B3/06 ,  F02D2250/12 ,  Y02T10/44

Abstract: In a system and method for controlling a solenoid-valve-controlled fuel-metering device, in particular for a diesel gasoline engine, the duration of delivery is determined based upon the speed value during the preceding metering-in operation.

Abstract translation: 在用于控制电磁阀控制的燃料计量装置，特别是用于柴油机的发动机的系统和方法中，基于在前一计量操作期间的速度值确定输送持续时间。

公开(公告)号：US5044890A

公开(公告)日：1991-09-03

申请号：US544561

申请日：1990-06-27

Applicant: Alf Loeffler ,  Wolfgang Fehlmann ,  Eberhard Fiedler ,  Wolfgang Geiger ,  Helmut Laufer

Inventor： Alf Loeffler ,  Wolfgang Fehlmann ,  Eberhard Fiedler ,  Wolfgang Geiger ,  Helmut Laufer

IPC: F02B3/06 ,  F02D1/08 ,  F02D11/10 ,  F02M41/12 ,  F02M59/44

CPC classification number: F02M59/44 ,  F02D1/08 ,  F02M41/123 ,  F02B3/06

Abstract: A fuel injection pump for internal combustion engines that has a pump interior and a final control element chamber, separated from it, the latter having an electric final control element for actuating a quantity adjusting device that determines a fuel injection quantity, parts of the final control element from which a control variable for the injection quantity is derived and which thereby serves as a material measure, are to be protected from the influence of fuel. By means of a jet pump through which a permanent propulsive flow flows and which is part of a flow conduit, the static pressure at the intake bore of the jet pump that communicates with the final control element chamber is lowered, and this negative pressure is utilized for evacuating the fuel entering the final control element chamber in the form of a leakage flow along the bearing of a control shaft. This arrangement is particularly suitable for high-pressure injection in Diesel engines, to attain highly accurate fuel metering that is stable over a long period of time.

Abstract translation: 一种用于内燃机的燃料喷射泵，其具有与其分离的泵内部和最终控制元件室，后者具有用于确定燃料喷射量的电动最终控制元件，用于确定燃料喷射量的部分， 导出喷射量的控制变量并因此用作材料测量的元件将被保护免受燃料的影响。 通过喷射泵，永久性推进流动通过该喷射泵流动并且是流动管道的一部分，与最终控制元件室连通的喷射泵进气孔处的静压力降低，并且利用该负压 用于以沿着控制轴的轴承的泄漏流的形式排出进入最终控制元件室的燃料。 这种布置特别适用于柴油发动机的高压喷射，以获得在长时间内稳定的高精度燃油计量。