公开(公告)号：US4058687A

公开(公告)日：1977-11-15

申请号：US712945

申请日：1976-08-09

Applicant: Werner Broghammer ,  Jurgen Kramer ,  Helmut Laufer

Inventor： Werner Broghammer ,  Jurgen Kramer ,  Helmut Laufer

IPC: G11B15/07 ,  G11B15/06 ,  G11B15/675 ,  G11B31/00

CPC classification number: G11B15/06 ,  G11B31/003

Abstract: A magnetic tape recorder for recording as well as for playback of sound, having a noise suppression device, and sensor member with an abutment surface for engaging against an unopened break through tab of a tape cassette for causing a locking mode for the recording device to be inoperative. The sensor member has an additional abutment surface arranged such that the latter abutment surface senses the wall of the cassette outside of the broken-through penetration opening of the cassette and the insert movement of the sensor member is limited in the opened penetration opening. The sensor member is connected with the locking device; such that in the absence of the limitation due to the absence of a cassette, the locking device, is also inoperative.

Abstract translation: 一种用于记录和回放声音的磁带记录器，具有噪声抑制装置，以及具有抵靠表面的传感器构件，用于与磁带盒的未打开的突破突出部接合，用于使记录装置的锁定模式为 不起作用 传感器构件具有附加的邻接表面，其布置成使得后者的邻接表面感测到盒的破裂穿透开口外部的盒的壁，并且传感器构件的插入运动被限制在打开的穿透开口中。 传感器构件与锁定装置连接; 使得在没有由于没有盒带的限制的情况下，锁定装置也不起作用。

公开(公告)号：US3946713A

公开(公告)日：1976-03-30

申请号：US509676

申请日：1974-09-26

Applicant: Helmut Laufer

Inventor： Helmut Laufer

IPC: F02D1/02 ,  F02D1/04 ,  F02M41/12 ,  F02M59/24

CPC classification number: F02M41/126 ,  F02D1/04

Abstract: An improved rpm regulator for a fuel injection pump associated with an internal combustion engine. The regulator includes a suction chamber, an intermediate lever, a fuel quantity control sleeve connected to the intermediate lever, a regulating spring assembly connected to the intermediate lever, a device including centrifugal weights and a governor sleeve for developing and transmitting an rpm signal through the intermediate lever to the fuel quantity control sleeve in opposition to a force exerted by the regulating spring assembly, a control lever, and an adjustable stop, including a cam member, mounted to the housing for limiting the motion of the intermediate lever. A working chamber is provided between the governor sleeve and an end of a guide shaft forming part of the device for transmitting an rpm signal. Openings are provided in the governor sleeve which communicate with the suction chamber for effecting a damping of oscillations of the governor sleeve during predetermined load conditions.

公开(公告)号：US5538397A

公开(公告)日：1996-07-23

申请号：US125921

申请日：1993-09-23

Applicant: Helmut Laufer ,  Anton Karle

Inventor： Helmut Laufer ,  Anton Karle

IPC: F02D1/02 ,  F02D41/30 ,  F02M41/12 ,  F02M59/36 ,  F02M51/00

CPC classification number: F02M41/125 ,  F02D41/3082 ,  F02M59/366

Abstract: A fuel injection pump has a pump plunger (13), which is driven by a drive shaft (15) via a cam gear (14) at least in an axial stroke movement and in so doing generates a fuel injection pressure in a pump work space (16), and a magnet valve (30) blocking or releasing the pump work space (16) relative to a relief duct (26). The start of delivery of the pump plunger is determined by the closing of the relief duct (26) and the end of delivery of the pump plunger (13) is determined by the release of the relief duct (26). To prevent the so-called jumping off of the plunger in the cam gear (14), the magnet valve (30) is controlled after the end of delivery in such a way that a residual pressure lying below the injection pressure is built up in the pump work space (16) until the top dead center point is reached (FIG. 1).

Abstract translation: 燃料喷射泵具有泵柱塞（13），所述泵柱塞（13）至少在轴向行程运动中经由凸轮齿轮（14）由驱动轴（15）驱动，并且在泵工作空间中产生燃料喷射压力 （16），以及相对于释放管道（26）阻塞或释放所述泵工作空间（16）的磁阀（30）。 泵柱塞的输送开始由释放管道26的关闭确定，并且泵柱塞（13）的输送结束由释放管道26的释放决定。 为了防止凸轮齿轮（14）中所谓的柱塞的跳动，在输送结束后控制磁阀（30），使得位于喷射压力以下的残余压力在 泵工作空间（16）直到达到上止点（图1）。

公开(公告)号：US5325837A

公开(公告)日：1994-07-05

申请号：US130495

申请日：1993-10-01

Applicant: Helmut Laufer

Inventor： Helmut Laufer

IPC: F02M41/12 ,  F02B3/06 ,  F02D41/40 ,  F02M45/06 ,  F02M51/04 ,  F02M65/00 ,  F02M37/04

CPC classification number: F02D41/403 ,  F02M45/06 ,  F02B3/06 ,  F02D2200/063 ,  F02D41/402 ,  F02D41/408 ,  Y02T10/44

Abstract: A fuel injection apparatus for internal combustion engines comprising a pump work chamber defined in a bore of a housing by a pump piston. The pump work chamber is supplied with fuel and relieved via a fuel line containing a magnet control valve. Moreover, the pump work chamber communicates with an injection valve via a supply line. Controlling of the injection is done via the opening or closing of the magnet control valve during the pumping stroke of the pump piston; to that end, the magnet valve is triggered by a control unit. To enable performing an accurate injection, a needle stroke transducer is disposed on the nozzle needle of the injection valve; if a limit value is exceeded, its stroke motion is detected as a precise signal for the onset and end and hence the size of the injection quantity and is transmitted to the control unit, where this actual value is compared with a set-point value from a performance graph, and a correction of the magnet valve triggering is consequently done performed, if needed.

Abstract translation: 一种用于内燃机的燃料喷射装置，包括通过泵活塞限定在壳体的孔中的泵工作室。 泵工作室通过包含磁力控制阀的燃油管路供给燃料并释放。 此外，泵工作室经由供给管路与喷射阀连通。 通过在泵活塞的泵送冲程期间通过磁体控制阀的打开或关闭来进行喷射的控制; 为此，电磁阀由控制单元触发。 为了能够进行精确的注射，针头换能器设置在喷射阀的喷嘴针上; 如果超过极限值，则其行程运动被检测为起始和结束的精确信号，因此被检测为喷射量的大小，并被传送到控制单元，其中该实际值与来自 因此，如果需要，执行性能图表和磁阀触发的校正。

公开(公告)号：US5201297A

公开(公告)日：1993-04-13

申请号：US238433

申请日：1988-08-31

Applicant: Ewald Eblen ,  Anton Karle ,  Helmut Laufer ,  Max Straubel

Inventor： Ewald Eblen ,  Anton Karle ,  Helmut Laufer ,  Max Straubel

IPC: F02D1/02 ,  F02B3/06 ,  F02D1/18 ,  F02M41/12 ,  F02M45/00 ,  F02M59/36

CPC classification number: F02M41/128 ,  F02D1/18 ,  F02D1/183 ,  F02M41/125 ,  F02M45/00 ,  F02M59/366 ,  F02B3/06 ,  F02M2200/09

Abstract: It is possible in a simple manner, especially in distributor injection pumps, to attain quiet combustion in the idling range of a Diesel engine, without modifying the basic construction of the fuel injection pump by shifting the injection pumping to the last portion of the stroke of the cam driving the pump piston of the fuel injection pump for idling, by means of an injection onset adjusting device, in combination with a determination of injection duration via the closing phase of an electrically controlled valve that relieves the pump work chamber.

Abstract translation: 特别是在分配器喷射泵中，可以在柴油发动机的怠速范围内获得安静的燃烧，而不需要通过将喷射泵送到最后的部分行程来改变燃油喷射泵的基本结构 所述凸轮驱动所述燃料喷射泵的泵活塞通过喷射开始调节装置与用于释放所述泵工作室的电控阀的关闭阶段的喷射持续时间的确定相结合。

公开(公告)号：US5070836A

公开(公告)日：1991-12-10

申请号：US577754

申请日：1990-09-05

Applicant: Josef Wahl ,  Alf Loffler ,  Hermann Grieshaber ,  Wilhelm Polach ,  Ewald Eblen ,  Joachim Tauscher ,  Helmut Laufer ,  Ulrich Flaig ,  Johannes Locher ,  Manfred Birk ,  Gerhard Engel ,  Alfred Schmitt ,  Pierre Lauvin ,  Fridolin Piwonka ,  Anton Karle ,  Hermann Kull

Inventor： Josef Wahl ,  Alf Loffler ,  Hermann Grieshaber ,  Wilhelm Polach ,  Ewald Eblen ,  Joachim Tauscher ,  Helmut Laufer ,  Ulrich Flaig ,  Johannes Locher ,  Manfred Birk ,  Gerhard Engel ,  Alfred Schmitt ,  Pierre Lauvin ,  Fridolin Piwonka ,  Anton Karle ,  Hermann Kull

IPC: F02B3/06 ,  F02D41/20 ,  F02D41/24 ,  F02D41/40 ,  F02D45/00

CPC classification number: F02D41/403 ,  F02D35/023 ,  F02D41/247 ,  F02B3/06 ,  F02D41/402 ,  Y02T10/44

Abstract: The invention is directed to a method and an arrangement for controlling the fuel injection in a high-pressure fuel pump. Magnetic valves determine the fuel quantity to be injected into the engine. The magnetic valve is controlled during the pumping phase of the pumping element in such a manner that first a preinjection and then a main injection is carried out. In specific operating conditions, the control apparatus determines the duration of the drive pulses for the magnetic valve at which a preinjection just takes place. With the duration of the drive pulses as a basis, the control apparatus forms compensating signals for the drive pulses which effect preinjection and stores the same.

Abstract translation: 本发明涉及用于控制高压燃料泵中的燃料喷射的方法和装置。 电磁阀确定要喷入发动机的燃油量。 在抽吸元件的泵送阶段期间控制电磁阀，使得首先进行预注射，然后进行主注射。 在特定的操作条件下，控制装置确定刚好发生预注射的电磁阀的驱动脉冲的持续时间。 以驱动脉冲的持续时间为基础，控制装置形成驱动脉冲的补偿信号，该驱动脉冲实现预注入并存储。

公开(公告)号：US4711221A

公开(公告)日：1987-12-08

申请号：US857660

申请日：1986-04-30

Applicant: Helmut Laufer

Inventor： Helmut Laufer

IPC: F02M41/12 ,  F02M39/00

CPC classification number: F02M41/126 ,  F02B2275/14 ,  Y02T10/123

Abstract: A fuel injection pump for internal combustion engines having a pump piston defining a pump work chamber and having control of the injection quantity by the opening, during the compression stroke of the pump piston, an axially displaceable regulating slide disposed about the pump piston, and of a relief conduit extending in the pump piston and discharging into the jacket face of the pump piston. Upon the opening, the relief conduit discharges into an outflow conduit provided between the pump piston and the regulating slide; at the onset of the opening stroke this conduit is fully opened, and during the course of the stroke it is throttled.

Abstract translation: 一种用于内燃机的燃料喷射泵，其具有限定泵工作室的泵活塞，并且在泵活塞的压缩冲程期间控制由开口的喷射量，围绕泵活塞设置的可轴向移动的调节滑块，以及 在泵活塞中延伸并排放到泵活塞的护套表面的释放导管。 在开启时，排放管排出到设置在泵活塞和调节滑块之间的流出管道中; 在开始行程开始时，该管道完全打开，并且在行程过程中被节流。

公开(公告)号：US4649883A

公开(公告)日：1987-03-17

申请号：US610724

申请日：1984-05-16

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 ,  F02M39/00

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.

Abstract translation: 一种燃料喷射泵，其具有用于向泵工作室供应燃料的切断装置，包括控制到燃料喷射泵的工作室的进气孔的电磁阀。 燃料喷射泵还具有释放导管，其通过泵活塞上的环形滑块与吸入室连接，以终止泵活塞的有效供给冲程。 为了确保对泵工作室的燃料供应的可靠关闭，在泵活塞的进气冲程期间，止回阀还设置在泵工作室和吸入室之间的连接中，止回阀被关闭， 伴随着从吸入室到泵工作室的压降。

公开(公告)号：US4628957A

公开(公告)日：1986-12-16

申请号：US675332

申请日：1984-11-27

Applicant: Gerald Hofer ,  Helmut Laufer

Inventor： Gerald Hofer ,  Helmut Laufer

IPC: F02M59/46 ,  F02M63/00 ,  F16K17/26

CPC classification number: F02M59/462 ,  F02M2200/30 ,  Y10T137/7774 ,  Y10T137/7777

Abstract: Disclosed is a pressure valve connectable between a fuel injection pump and the fuel injection valve of an internal combustion engine. The valve includes a cylindrical valve closing member which moves due to the pressure of fuel from the pump and expells a quantity of fuel to the injection valve. A throttling passage is provided as a bypass to the closing member and guarantees a stable pressure in the fuel supply conduit when the closing member is in open position. To neutralize reflected pressure waves in the supply conduit after injection the valve closing body is delayed by the throttling passage during its return movement into closing position. In addition, a check valve is arranged in the closing member which controls the stable pressure to a desired value.

Abstract translation: 公开了一种可连接在燃料喷射泵和内燃机的燃料喷射阀之间的压力阀。 该阀包括一个圆柱形的阀关闭件，它由于来自泵的燃料压力而移动，并将一定数量的燃料排出到喷射阀。 提供节流通道作为旁路到关闭构件，并且当关闭构件处于打开位置时确保燃料供应管道中的稳定的压力。 为了在注入之后中和供应管道中的反射压力波，在其返回运动进入关闭位置时，阀关闭体被节流通道延迟。 此外，在关闭构件中布置止回阀，其将稳定压力控制到期望值。

公开(公告)号：US4502449A

公开(公告)日：1985-03-05

申请号：US379805

申请日：1982-05-19

Applicant: Helmut Laufer

Inventor： Helmut Laufer

IPC: F02D1/18 ,  F02M59/20

CPC classification number: F02D1/183

Abstract: A fuel injection pump which has an adjusting piston for the purpose of injection instant adjustment. The adjusting piston has opposite ends defining respective work chambers. The work chambers are supplied with fuel under rpm-dependent pressure from a suction chamber of the fuel injection pump, via respective throttles, and are relieved via respective outflow lines. The outflow cross sections of the outflow lines are controlled in complementary fashion by a control slide of a control valve. The control slide is exposed to a modifiable control pressure derived from the rpm-dependent pressure, and for the peripheral conditions of a cold engine and rpm of the engine below a threshold rpm, the maximum controlled pressure is established by means of a third control valve.

Abstract translation: 一种燃油喷射泵，其具有用于喷射即时调节目的的调节活塞。 调节活塞具有限定相应工作室的相对端。 工作室经由相应的节流阀从燃料喷射泵的吸入室以与转速相关的压力供给燃料，并通过相应的流出管路释放。 通过控制阀的控制滑块互补地控制流出管路的流出横截面。 控制滑块暴露于从转速相关压力导出的可修改的控制压力，并且对于冷发动机的周边条件和发动机的转速低于阈值rpm，最大控制压力通过第三控制阀 。