Pivoted Link Connected To Pump Rack Patents (Class 123/373)
  • Patent number: 9702326
    Abstract: Embodiments for an internal combustion engine are provided. In one example, and internal combustion engine comprises at least two cylinders each including an injection nozzle and a fuel supply system for supplying the cylinders with fuel. The fuel supply system includes a supply line connecting each injection nozzle to a first fuel reservoir storing fuel at a first pressure, the first fuel reservoir filled by a pump provided upstream, a second fuel reservoir storing fuel at a second pressure less than the first pressure and connected to the first fuel reservoir via a connecting line for filling with fuel, and a bypass line connecting the second fuel reservoir to each injection nozzle. The bypass line opens into the fuel supply system downstream of the first fuel reservoir, thereby forming a connection point, and a shutoff element is arranged in the bypass line, opening or shutting off the bypass line.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: July 11, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Daniel Roettger, Christian Winge Vigild, Leonhard Bartsch
  • Patent number: 7644697
    Abstract: A governor device comprises a first lever connecting a governor lever to a rotary speed setting lever interlockingly, a second lever pivotally supported by the first lever, and a third lever pivotally supported by the second lever, regulated its rotation amount by the second lever and interlocked with a governor weight. A fuel injection compensation spring is provided between the first lever and the second lever so as to bias them for decreasing the rotary speed for a fixed amount at the time of low speed rotation. A compensation starting rotary speed setting device, which is a set load changing means for the fuel injection compensation spring, is provided on the first lever near the fuel injection compensation spring.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: January 12, 2010
    Assignee: Yanmar Co., Ltd.
    Inventors: Jyunichi Samo, Toshio Kamiyama, Masashi Sagara
  • Patent number: 6953022
    Abstract: A fuel injection pump, comprising three sub-mechanism parts; a lower mechanism part (A), a head mechanism part (B), and a governor mechanism part (C), wherein, when the governor mechanism part (C) is assembled into the combination of the lower mechanism part (A) and head mechanism part (B) after the lower mechanism part (A) and head mechanism part (B) are assembled with each other, a governor link (27) installed extendedly from the governor mechanism part (C) is inserted into both mechanism parts (A, B) and, when a hook groove (27a) at the tip of the governor link (27) is engaged with a lock pin (21a) in a control slider (21) for the rotation of a plunger (7) disposed inside the lower mechanism part (A) and head mechanism part (B), first, with a cut surface (33b) of a lift pin (33) facing upward, the governor link (27) is put on the cut surface (33b) so as to position the hook groove (27a) under the lock pin (21a), and then the lift pin (33) is rotated to face the cut surface (33b) downward, and the governor
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: October 11, 2005
    Assignee: Yanmar Co., Ltd.
    Inventors: Seiji Itsuki, Satoshi Hattori, Hajimu Imanaka, Junichi Samo, Masamichi Tanaka, Yoshihiro Yokome
  • Patent number: 6807940
    Abstract: A governor for use in an engine provided with an overspeed protection device arranged to trip in the event that engine speed exceeds a predetermined speed. The governor comprises a centrifugal weight mechanism comprising at least one weight coupled to an angularly adjustable metering valve member through a lever member, the metering valve member being operable to control the level of fuelling of the associated engine depending on engine speed. The governor further comprises a damping arrangement associated with the lever member which is arranged to damp oscillatory movement of the lever member, in use, and a prevention arrangement for preventing the overspeed protection device associated with the engine tripping upon engine start up.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: October 26, 2004
    Assignee: Delphi Technologies, Inc.
    Inventor: Geoffrey D Bootle
  • Patent number: 6782870
    Abstract: A load timer mechanism of a fuel injection pump includes a governor shaft, which is secured to a housing, and a governor sleeve, which is axially slidably supported around the governor shaft. The governor shaft includes a fuel relief passage, which is communicated with a low pressure side of the pump and has an outer opening in an outer peripheral surface of the governor shaft, and a first annular groove, which is recessed in the outer peripheral surface of the governor shaft such that the first annular groove is axially displaced from the outer opening. The governor sleeve includes a port, which extends between an outer peripheral surface and an inner peripheral surface of the governor sleeve, and a second annular groove, which is recessed in the inner peripheral surface of the governor sleeve such that the second annular groove is axially displaced from the port.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: August 31, 2004
    Assignee: Denso Corporation
    Inventor: Hiroki Ishida
  • Patent number: 6755180
    Abstract: A chamfering portion provided at an inlet corner of a port of an inside way-out in a governor shaft is effective to decrease energy loss of fuel flowing into the inside way-out to less than one half in comparison with that of a conventional art. A flow amount characteristic of the fuel into the inside way-out improves so that a hysteresis between a pump chamber pressure decrease characteristic on increasing a load (a retarding characteristic) and a pump chamber pressure increase characteristic on decreasing the load (an advancing characteristic) is lowered, resulting in securing a highly accurate control of fuel injection timing.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: June 29, 2004
    Assignee: Denso Corporation
    Inventor: Hiroki Ishida
  • Patent number: 6076501
    Abstract: A two speed governor for an internal combustion engine includes a flyweight assembly rotatably mounted in a housing. The riser is positioned in the housing and operably connected to the flyweight assembly. The riser is moveable between a retracted position, and intermediate position and an advanced position. A first spring is operably mounted in the housing to bias the riser toward its retracted position when the riser is located anywhere between its retracted position and its advanced position. A second spring is operably mounted in the housing to bias the riser toward its retracted position when the riser is between its intermediate and advanced positions. The second spring has a pre-load but is inoperable when the riser is between its retracted position and its intermediate position.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: June 20, 2000
    Assignee: Caterpillar Inc.
    Inventors: Gregory E. Costley, Thomas S. Lane, Larry R. Mitzelfelt, Jr., Jeffrey R. Ries
  • Patent number: 5979403
    Abstract: A fuel control system responsive to a power controller and controlling a fuel delivery system. The fuel control system includes a control arm connected to both the power controller and the fuel delivery system, a position sensor connected to the control arm, and a trim controller connected to the control arm at a pivot point and connected to the position sensor.
    Type: Grant
    Filed: July 28, 1998
    Date of Patent: November 9, 1999
    Assignee: Teledyne Industries, Inc.
    Inventors: James William Brogdon, David Keith Gill
  • Patent number: 5755200
    Abstract: A control assembly and method for operating the throttle of an internal combustion engine, in particular, but not exclusively, a diesel engine of a heavy duty vehicle, is provided whereby fuel can be saved by controlling the throttle operation and a driver can be trained to exhibit better driving skills. Detector means detect certain undesirable throttle conditions or movements such as full throttle for an excessive period of time; the number of times a throttle is pumped; and the speed with which the throttle mechanism is moved, and the assembly acts to reduce the fuel supply to the engine to an extent whereat the engine does not lose engine speed to any appreciable extent at constant load, but full throttle is temporarily unavailable.
    Type: Grant
    Filed: January 22, 1997
    Date of Patent: May 26, 1998
    Inventor: Henning M. Henderson
  • Patent number: 5752483
    Abstract: A governor arrangement for an internal combustion engine is disclosed which comprises a plurality of weights rotatable with a rotatable drive shaft and pivotable with respect to the shaft. The weights are engageable with a washer which, in turn, engages a sleeve. The sleeve engages a lever the position of which is used to control the setting of a metering valve. A hydrodynamic bearing arrangement is provided between the sleeve and washer. A drive arrangement may be provided to drive the washer when the rotational speed of the shaft is insufficient to cause the weights to move the sleeve.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: May 19, 1998
    Assignee: Lucas Industries, plc
    Inventors: Adrian Mark Greaney, Daniel Jeremy Hopley, Jack Paine
  • Patent number: 5722369
    Abstract: A fuel injection pump that has both a governor spring and an adjustable idling spring, suspended in a manner structurally connected to the housing. The setting of the spring is adjustable between a minimum idling setting and a maximum idling setting via a coupling arrangement, in accordance with an adjustment of an adjusting lever.
    Type: Grant
    Filed: August 5, 1996
    Date of Patent: March 3, 1998
    Assignee: Robert Bosch, GmbH
    Inventor: Willi Weippert
  • Patent number: 5642710
    Abstract: A governor mechanism for use with a fuel pumping apparatus includes a centrifugal weight mechanism which is coupled to an output member the latter being coupled to a fuel control member so that with increasing speed the quantity of fuel supplied by the apparatus is reduced. A governor spring opposes the movement of the output member but in addition a leaf spring is provided to supplement the action of the governor spring. The leaf spring is formed by one end of a torsion spring which is wound about a cylindrical member. The cylindrical member and the torsion spring are axially movable relative to each other to alter the effective number of turns of the torsion spring connected in series with the leaf spring.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: July 1, 1997
    Assignee: Lucas Industries public limited Company
    Inventors: Daniel Jeremy Hopley, Adrian Mark Greaney
  • Patent number: 5617830
    Abstract: A prestroke controller 31 for an engine fuel injection pump 30 utilizes a magnetic coupling 26 and, by taking advantage of the fact that the secondary side (driven side internal magnet) of the magnetic coupling can be controlled to a desired position without being driven by force from a flyweight 11 on the primary side (driving side external magnet), not only secures speed timer characteristics but also provides a greater degree of freedom in determining the injection timing advance characteristic. The prestroke controller 31 includes the magnetic coupling 26 as a member of a displacement transfer section provided between the flyweight 11 and the timing control rod 6 and also includes an add-on device 36 for injection timing advance adjustment which can be engaged with or disengaged from the timing control rod 6 and is capable of controlling the prestroke independently of the magnetic coupling 26.
    Type: Grant
    Filed: July 27, 1995
    Date of Patent: April 8, 1997
    Assignee: Zexel Corporation
    Inventors: Hiroshi Ishiwata, Tohru Yokota, Mitsuaki Kobayashi, Tsutomu Katori, Teruo Ohsawa
  • Patent number: 5572972
    Abstract: A control system for a diesel engine for creating an ON/OFF feedback signal for controlling engine-related functions includes a mechanical assembly involving a fuel injection pump, a governor for the fuel injection pump, a pair of cam stops as part of the governor and an electrically grounded moveable rack finger. One of the cam stops is a fixed stop which limits travel of the rack finger and thus limits fueling to a predetermined level. The only variable which determines fuel quantity for this full load cam stop is engine speed. The second stop which limits rack finger travel is an air-fuel cam stop which has two independent variables that determine the fuel limit. These independent variables are engine speed and engine boost pressure. The air-fuel cam stop is placed within a housing which is electrically isolated from the rest of the fuel pump and the engine.
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: November 12, 1996
    Assignee: Cummins Engine Company, Inc.
    Inventors: Todd A. Sheridan, Rod Radovanovic, Angela R. May
  • Patent number: 5372111
    Abstract: The setting of the full load stop cam of a speed governor can be effected by simple means in a manner which is advantageous in terms of production technology. This simplification of the final setting of the cam (13) which is designed as a full load stop cam is achieved by combining the cam (13) with the lid (12) of the housing (11) of the fuel injection pump speed governor, to form a single structual unit, with adjusting elements being provided on the lid (12) which facilitate simple means of adjustment of the cam (13). This setting device for fuel apportioning is used in speed governors of fuel injection pumps.
    Type: Grant
    Filed: November 3, 1992
    Date of Patent: December 13, 1994
    Assignee: Robert Bosch GmbH
    Inventors: Sieghart Maier, Siegfried Ruthardt, Jurgen Hanneke
  • Patent number: 5325831
    Abstract: The governor of the present invention includes the reverse Angleich lever 9 one end of which is jointed to the control block 5 which moves in the axial direction in accordance with the movement of the fly weight 3, and the other is jointed to the mid-portion of the control lever 18. At the mid-portion of the reverse Angleich lever 9, there is provided the stopper pin 25, and on the tension lever 12, there is provided the abut member 26 for detachably abutting to the stopper pin 25.When the cam shaft 2 rotates at a high speed, the stopper pin 25 abuts to the abut member, avoiding the rotation of the reverse Angleich lever 9. Thus, the reverse Angleich characteristic can be obtained.
    Type: Grant
    Filed: July 30, 1993
    Date of Patent: July 5, 1994
    Assignee: Nippondenso Co., Ltd.
    Inventor: Shizuo Handa
  • Patent number: 5307775
    Abstract: In all-speed governors controlled by centrifugal force and controlling the full-load fuel delivery quantity of the respective fuel injection pump as a function of boost pressure, the starting fuel delivery is to be reduced at higher operating temperatures of the internal combustion engine to prevent smoke bursts during warm starting. For this purpose, the speed governor has an added support provided in addition to a base support and supported of the later swivelably between two adjusting stops. In addition to a full-load stop arranged on the base support, the added support has an added stop which can be displaced by an adapter unit transversely to the swiveling direction as a function of the boost pressure.
    Type: Grant
    Filed: February 9, 1993
    Date of Patent: May 3, 1994
    Assignee: Robert Bosch GmbH
    Inventor: Siegfried Ruthardt
  • Patent number: 5275140
    Abstract: A speed governor for fuel injection pumps of internal combustion engines in which part of an oscillation damper member, in the form of a capsule, is disposed between a drive shaft and a flyweight adjuster; two claws of a support that receives the flyweights of the centrifugal adjuster and two claws of a coupling element connected to the drive shaft. The two claws are connected to one another by way of a segmented type buffer element, all of which protrude into the capsule. The claws of the coupling element protrude into the open part of the capsule, while the claws of the support protrude into the capsule through openings in the capsule bottom. For the sake of greater strength of the capsule, the openings are embodied in closed form according to the invention.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: January 4, 1994
    Assignee: Robert Bosch GmbH
    Inventors: Helmut Knoedl, Karsten Hummel, Sieghart Maier, Rolf Mueller
  • Patent number: 5265569
    Abstract: A rotational speed control system for controlling the number of revolutions of an engine through remote control of rotation of a governor lever. This rotational speed control system includes a stepping motor for rotating the governor lever, lever position sensor switches for detecting abutment of the governor lever against stoppers, respectively, a pulse counter, and a controller. The controller is adapted to store a count value of the pulse counter as a renewable reference value when the position sensor switches are turned on, to carry out the rotational speed control of the engine and necessary preadjustments according the reference value.
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: November 30, 1993
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Masaki Egashira, Masakazu Haga, Osamu Tomikawa, Touichi Hirata
  • Patent number: 5255652
    Abstract: A speed governor for fuel injection pumps of internal combustion engines that has a centrifugal adjuster that acts counter to the force of governor springs to generate a speed-dependent adjustment travel of a governor sleeve and that acts on a fuel quantity adjusting device of a fuel injection pump via the governor sleeve and a governor lever disposed thereupon In this process a charge-pressure-dependently adjustable stop for a full-load fuel supply quantity, which is disposed on a stop lever is pivoted as a function of temperature and speed into the adjustment path of a counter stop disposed on the fuel quantity adjusting device, in such a way that, after a certain speed and a certain operating temperature of the engine has been reached, the stop comes into contact with this counter stop of the fuel quantity adjusting device.
    Type: Grant
    Filed: March 10, 1993
    Date of Patent: October 26, 1993
    Assignee: Robert Bosch GmbH
    Inventors: Martin Boehm, Karsten Hummel, Siegfried Ruthhardt
  • Patent number: 5233957
    Abstract: A fuel injection pump for internal combustion engines has a fuel-quantity adjusting member, and an adjusting device associated with the adjusting member and operative for altering a possible travel of the fuel-quantity adjusting member as a function of an atmospheric pressure. The device has a pivotally mounted two-armed stop lever against which the fuel-quantity adjusting member can be brought to rest. A circuit is provided with a working element which acts on the stop lever and changes its position or length following a closure and opening of the circuit. The adjusting device has a switching element which is acted upon by the atmospheric pressure and, as a function of atmospheric pressure closes and opens the circuit.
    Type: Grant
    Filed: November 22, 1991
    Date of Patent: August 10, 1993
    Assignee: Robert Bosch GmbH
    Inventors: Karl Konrath, Claus Koester, Wolf-Ruediger Walk, Karl-Friedrich Ruesseler, Helmut Tschoeke, Mohammad-Ali Khosrawi, Alfons Schoetz
  • Patent number: 5226795
    Abstract: A fuel injection pump for internal combustion engines is proposed, having a reciprocating piston that defines a pump work chamber in a pump cylinder and that on its jacket face has a control recess communicating with the pump work chamber, and a control slide is displaceable on the pump piston in order to control the high-pressure pumping. This control slide, which cooperates with the control recess on the pump piston, is actuated via an adjusting lever disposed on an adjusting lever shaft; the adjusting lever shaft is moved by an adjusting lever mounted on it outside the housing. This adjusting lever can be pivoted between two stops; according to the invention, these stops are disposed on a base plate that simultaneously acts as a flange of the adjusting lever shaft bearing bush and that can be moved relative to the pump housing via oblong slots in order to adjust the stops.
    Type: Grant
    Filed: October 28, 1992
    Date of Patent: July 13, 1993
    Assignee: Robert Bosch GmbH
    Inventor: Manfred Kraemer
  • Patent number: 5203301
    Abstract: A centrifugal speed governor including a control capsule. The control capsule includes a face-end part which is interchangeable and always has the same thickness (d). To enable making adjustments and to compensate for tolerances, the face-end has a set of indentations that can be made with various heights, in such a way that a middle part of the face-end protrudes outward, as viewed from a direction of the control capsule.
    Type: Grant
    Filed: May 8, 1992
    Date of Patent: April 20, 1993
    Assignee: Robert Bosch GmbH
    Inventors: Sieghart Maier, Guenther Koch
  • Patent number: 5195490
    Abstract: A speed governor for internal combustion engines, having a centrifugal speed transducer serving to govern the speed, acting counter to the force of governor springs, generating a speed-dependent adjusting travel of a governor sleeve, and equipped with flyweights, which transducer acts via the governor sleeve and a governor lever upon a fuel quantity adjusting device governor rod of the fuel injection pump. The governor sleeve comprises a first, inner drag member part and a second, outer drag member part, between which two drag springs are coaxially disposed, of which one drag spring is operative in only one direction of axial motion.
    Type: Grant
    Filed: July 9, 1992
    Date of Patent: March 23, 1993
    Assignee: Robert Bosch GmbH
    Inventor: Sieghart Maier
  • Patent number: 5190010
    Abstract: An arrangement for regenerating a soot burn-off filter in the exhaust duct of an air-compressing fuel injected internal combustion engine having a mechanical speed governor and an altitude matching device dependent on the atmospheric pressure into which the regenerating arrangement is integrated in such a way that, as the exhaust-gas backpressure increases, the speed governor is acted upon via the altitude matching device to reduce the injection quantity to be metered to the internal combustion engine.
    Type: Grant
    Filed: December 2, 1991
    Date of Patent: March 2, 1993
    Assignee: Mercedes-Benz AG
    Inventors: Wendelin Klugl, Walter Putz
  • Patent number: 5188076
    Abstract: A fuel injection pump for internal combustion engines having a fuel injection quantity adjusting device, in which by the imposition of a stepping motor and by varying a spring assembly at the adjusting device, not only can the starting and full-load injection quantities be controlled but the idling injection quantity can also be regulated as a function of engine operating parameters.
    Type: Grant
    Filed: May 14, 1992
    Date of Patent: February 23, 1993
    Assignee: Robert Bosch GmbH
    Inventors: Carlos Alvarez-Avila, Karl-Friedrich Ruesseler, Helmut Tschoeke, Karl Konrath
  • Patent number: 5161509
    Abstract: A fuel injection pump having a speed governor which is housed in a pump body under a control pressure and which actuates an injection quantity control element, and a hydraulic injection timing mechanism which is connected with the pump body and which adjusts the start of injection (SB) to "early" with increasing pressure in the pump body, and to "late" with decreasing pressure. For the implementation of a load-dependent start of delivery (LFB), a governor sleeve of the speed governor governs in a load dependent manner, a relief throttle in the pump body, which, depending on the displacement setting of the governor sleeve, uncovers a varying cross-sectional throttle area to an outlet bore.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: November 10, 1992
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Krieger, Karl-Friedrich Russeler, Michael Scharf
  • Patent number: 5138998
    Abstract: A distributor-type fuel injection pump comprising a mechanical speed regulator in which a tension lever and a starting lever interact as a regulating lever system in such a manner that they act in combination above the idling speed. In such an arrangement a quantity control element is connected to the starting lever and, in addition, this starting lever is engaged by an idling spring. A pretension of the spring can be changed, in dependence on operating characteristics in order to obtain a corresponding change in the delivery quantity during idling, for example with idling overload.
    Type: Grant
    Filed: June 5, 1991
    Date of Patent: August 18, 1992
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Krieger, Karl Konrath, Carlos Alvarez-Avilla
  • Patent number: 5131361
    Abstract: A centrifugal governor for an internal combustion engine having a bosshead (2) which can be displaced axially along a governor driving shaft (1) by centrifugal weights (3) and a governor lever (7), the pivoted position of which is controlled by the axial movement of the bosshead (2). Axial motion of the bosshead (2) is converted to pivotal motion of the governor lever (4) by a pair of bearings (5) mounted on the latter and having outer raceways (6) which roll on the bosshead (2).
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: July 21, 1992
    Assignee: Kloeckner-Humboldt-Deutz AG
    Inventors: Ernst-Siegfried Hartmann, Werner Lemme
  • Patent number: 5113825
    Abstract: An engine controller which is arranged to operate a governor through an actuator which is controllable either by an accelerator lever in an operator's station or by radio control. First and second levers are rotatably mounted on a shaft, and are biased respectively by a spring to turn in one direction. The first lever is connected to the governor by a wire in such a manner as to increase the engine speed when turned in a direction reverse to the biased direction. The second lever is connected to the accelerator lever by a second wire in such a manner as to rotate in the reverse direction when the accelerator lever is operated in the direction of acceleration. A pulley is mounted on the shaft, and a third lever is securely fixed to the pulley. The pulley is connected to the actuator by a third wire such that the pulley is rotated according to the rotation of the actuator. A rod is securely fixed to the first lever to transmit the reverse rotations of the second and third levers to the first lever.
    Type: Grant
    Filed: August 16, 1991
    Date of Patent: May 19, 1992
    Assignee: Shin Caterpillar Mitsubishi Ltd.
    Inventor: Keiichi Takahashi
  • Patent number: 5086742
    Abstract: For the sake of improving quiet operation during idling and at low partial load by lengthening the injection duration, a fuel injection pump for internal combustion engines has a relief conduit originating in a pump work chamber, the relief conduit including a throttle and being blockable at upper partial load, full load and openable by a control slide. The relief conduit is controlled by a pressure maintenance valve, the opening pressure of which can be adapted from outside to the opening pressure of injection nozzles. The control slide is controlled by a centrifugal governor in such a manner that at idling and lower partial load. The control slide is shifted by the pressure in a fuel low-pressure chamber into its operating position that uncovers the relief conduit, and at upper partial load, full load and starting, the control slide is disconnected from the low-pressure chamber, so that it can drop back into its basic position that blocks off the relief conduit.
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: February 11, 1992
    Assignee: Robert Bosch GmbH
    Inventor: Hans-Jorg Vogtmann
  • Patent number: 5083545
    Abstract: In a diesel engine, a cylinder block has a pump housing integratedly provided for a fuel injection pump unit at the lateral side thereof. A timing transmission case is fixedly secured to the fore portions of the cylinder block and the pump housing. A governor weight of a mechanical governor and a transmission member for transmitting a centrifugal force of the governor weight are supported by a fuel injection camshaft within the pump housing. A governor lever and a governor spring are disposed within the pump housing in such a condition as not entering the timing transmission case.
    Type: Grant
    Filed: September 5, 1990
    Date of Patent: January 28, 1992
    Assignee: Kubota Corporation
    Inventors: Kenji Yamashita, Tatsuyuki Nakamura, Shinji Sasaki
  • Patent number: 5080063
    Abstract: The invention relates to a mechanical speed governor, apparatus for an injection pump of compression-ignition internal combustion engines provided with an electronically controlled adapting device. The adapting device is provided for correcting fuel quantity delivered by the pump in the range of the full-load and starting speeds, and is in operative connection with a quantity-control member of the injection pump via a two-step stop. The two-step stop can be transferred as a function of speed from a position corresponding to the starting speed into a position corresponding to the full-load speed.
    Type: Grant
    Filed: December 8, 1989
    Date of Patent: January 14, 1992
    Assignee: Dr. Ing. h.c.F. Porsche AG
    Inventor: Ulrich Augustin
  • Patent number: 5063900
    Abstract: A mechanical speed governor for a fuel injection pump of air-compressing auto-ignition internal combustion engines has a stop bracket effecting the release of the starting quantity and limiting the full-load quantity, a flyweight arrangement with integrated positive adaptation acting in the upper speed range and a rocker lever which is in effective connection with the flyweight arrangement. The stop bracket is shifted from a position corresponding to the full-load speed. The rocker lever alters the control travel of the quantity control member for full load via the stop bracket and a counterstop connected to the quantity control member, and effects a negative adaptation in the lower speed range.
    Type: Grant
    Filed: December 4, 1990
    Date of Patent: November 12, 1991
    Assignee: Mercedes-Benz AG
    Inventor: Ulrich Augustin
  • Patent number: 5036815
    Abstract: A mechanical injection-pump governor with an electronically controlled torque-control in which, as a function of parameters, a stepping motor controllable by an electronic control device adjusts with its actuator a full-load stop interacting with the quantity-adjustment member of the injection pump. The torque-control movement of the actuator is limited by an end stop situated a short distance above the maximum full-load control path and by an end stop situated a short distance below the minimum full-load control path.
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: August 6, 1991
    Assignee: Daimler-Benz AG
    Inventors: Ulrich Augustin, Bernd Busenthur
  • Patent number: 5027767
    Abstract: A fuel injection pump including a housing having an adjustable coupling device on the outside of the housing by which the speed governor can be adjusted from outside the housing of the fuel injection pump. By use of the adjustable coupling device on the outside of the housing, it is possible to eliminate production-oriented parts tolerances by means of adjustments of the speed governor, without tampering with its internal conditions.
    Type: Grant
    Filed: August 28, 1989
    Date of Patent: July 2, 1991
    Assignee: Robert Bosch GmbH
    Inventors: Guenter Bofinger, Claus Maier
  • Patent number: 4987875
    Abstract: A fuel injection pump for supplying the combustion chambers of internal combustion engines intended for vehicle operation having, in addition to a fuel quantity regulating device operative in accordance with operating parameters of the engine, an adjusting device in which in accordance with an anti-buckling signal obtained from fast relative movements on the vehicle the fuel supply quantity of the fuel injection pump is varied in phase opposition to the acceleration event triggering the bucking. This adjustment is accomplished in accordance with the invention by intervention with a setting device of the fuel injection pump, by means of which device the basic setting of the fuel supply quantity is adjusted independently of the supply quantity varied by the fuel quantity regulating device.
    Type: Grant
    Filed: December 5, 1986
    Date of Patent: January 29, 1991
    Assignee: Robert Bosch GmbH
    Inventors: Gerald Hofer, Helmut Laufer, Max Staubel
  • Patent number: 4934326
    Abstract: A fuel injection rate control apparatus for a V-engine, formed so that the rational speed of the engine can be prevented from varying when the engine is inclined forward or backward, even if a commonly mass-produced inexpensive governer is used. This control apparatus has a fuel injection pump (1) provided with a governer (2) and mounted on one side portion of a cylinder block, a governer-free fuel injection pump (1') mounted on the other side portion of the cylinder block, and a link mechanism consisting of a connecting shaft (4.sub.1) provided in front of the two fuel injection pumps so that the connecting shaft can be turned freely so as to transmit the movement of a rack rod (3) of the governer-carrying fuel injection pump (1) to a rack rod (3) of the other fuel injection pump (1'), a pair of levers (4.sub.2-1, 4.sub.2-2) fixed to both sides of the connecting shaft so as to project in the opposite directions, and a pair of links (4.sub.3) connecting these levers and two rack rods together.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: June 19, 1990
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Tsuneo Tanozaki, Yukio Yamamoto, Chuukichi Nihei, Katsuya Fujimoto, Mitsuru Ueno
  • Patent number: 4924827
    Abstract: The shut-down device stops a diesel engine by cutting the fuel supply or the intake air supply. The device comprises a timer having a capacitor which outputs engine stop signals for a predetermined time when a key switch is turned off, and a drive element having a switching device which supplies an actuator for stopping the engine with operation signals in accordance with the engine stop signals from the capacitor. The switching device includes an NPN-type transistor to receive the engine stop signals as a base voltage and to be connected to a starter of the engine, and a PNP-type transistor to receive a divdied voltage from a battery in accordance with the starter operation and to output the operation signals to the actuator.
    Type: Grant
    Filed: June 15, 1989
    Date of Patent: May 15, 1990
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventor: Masami Minegishi
  • Patent number: 4920938
    Abstract: A governor for fuel injection pumps, said governor having two or three cooperating levers used to move a fuel injection quantity control slide. A regulating spring and the idling spring engage the drag lever. A start spring is disposed between the drag lever and the start lever, the start spring is opposed by the force of a flyweight assembly which is speed-dependent. When starting the combustion engine, the start lever, which is connected to the drag lever via a pivot pin, is in an initial position corresponding to a setting of the quantity control slide, which setting is smaller than the full injection quantity. When starting, the quantity control slide is displaced through a first control range to deliver a greater quantity of fuel, up to the full load injection quantities. Thereupon, when instituting a decrease, further displacement of the flyweight assembly results in the quantity control slide being displaced through a second control range in the direction of smaller quantities of fuel.
    Type: Grant
    Filed: December 7, 1988
    Date of Patent: May 1, 1990
    Assignee: Robert Bosch GmbH
    Inventors: Manfred Schwarz, Wolfgang Braun, Carlos Alverez-Avila
  • Patent number: 4913115
    Abstract: When motor vehicles are driven, discontinuities that lead to load spikes arise between overrunning and running under load. The load spikes are avoided by means of a discontinuous increase in fuel quantity, which makes it possible for the engine to come gently to rest in its suspension, to bypass the drive play, and to convert the changes in increased fuel quantity without bucking. By incorporating drag elements into the connection between the arbitrary actuation of an intermediate lever, which affects the fuel injection quantity, and an idling stop, a discontinuous adjustment of the intermediate lever is attained.
    Type: Grant
    Filed: April 7, 1989
    Date of Patent: April 3, 1990
    Assignee: Robert Bosch GmbH
    Inventors: Karl Konrath, Claus Koester, Manfred Schwarz, Klaus Krieger, Helmut Tschoeke, Ulrich Stratemeier
  • Patent number: 4909216
    Abstract: The lever (13) cooperates on the one hand with a rotatable part (12) and, on the other, is coupled with a to-and-fro movable adjusting member (14). The lever (13) consists of a housing (15) traversed by the rotatable part (12), of a piston-like spring plate (16) and of a return spring (19) clamped-in between housing (15) and sping plate (16). Spring plate (16) and rotatable part (12) form in the mutually cooperating area a torque-limiting driving device. The hollow space (25) underneath the spring plate (16) is adapted to be acted upon with oil pressure by bores (21, 22) in the rotatable part (12) which are controllably connected to a pressure oil source (24). The oil pressure displaces the spring plate (16) so that the driving device is disengaged. The lever (13) is then displaced by the spring (27) of the to-and-fro movable part into an end position independently of the position of the rotatable part (12) which corresponds to the zero delivery of the fuel injection pump (11).
    Type: Grant
    Filed: July 6, 1988
    Date of Patent: March 20, 1990
    Assignee: MTU Friedrichshafen GmbH
    Inventor: Michael Groddeck
  • Patent number: 4903661
    Abstract: A fuel pumping apparatus for supplying fuel to an engine has a high pressure pump which includes a component movable to determine the maximum amount of fuel which can be supplied to the engine. The component is biased by a spring to a minimum fuel position and to adjust the setting of the component there is provided a three armed lever one arm of which is coupled to the component. The other two arms are coupled to engine operating parameter responsive devices. In the example the device is a piston which is spring loaded and is responsive to the output pressure of a low pressure fuel pump and the device includes a diaphragm which is subjected to the air inlet manifold pressure.
    Type: Grant
    Filed: August 3, 1988
    Date of Patent: February 27, 1990
    Assignee: Lucas Industries Public Limited Company
    Inventor: Robert H. Scott
  • Patent number: 4884543
    Abstract: Fuel injection pump having a pump piston including a working space that is connected via a check valve with a reservoir closed off by a movable wall. A control line leads from this reservoir to a regulating cylinder. An adjustable regulating member is displaceably disposed in this regulating cylinder, permitting adjustment of the fuel quantity control slide according to the position of the regulating member. The subject of the invention achieves a simple construction for a fuel injection pump, for which only a small amount of drive power is required.
    Type: Grant
    Filed: November 10, 1988
    Date of Patent: December 5, 1989
    Assignee: Robert Bosch GmbH
    Inventor: Heinz Stutzenberger
  • Patent number: 4884542
    Abstract: In a fuel injection pump for internal combustion engines for motor vehicles, a damping device is provided to eliminate so-called vehicle bucking. The device allows rapid adjusting movements of an rpm adjusting lever, which is connected to the driving lever, to affect the supply quantity setting of the fuel injection pump only with a delay. To this end, the damping device has a damping chamber defined by a damping cylinder and a damping piston displaceable therein. The damping chamber communicates with the pump interior via two parallel throttles and via counter-parallel check valves located in series with the parallel throttles. The damping piston is connected to a damper lever on which the rpm adjusting lever is supported via a pre-stressed drag spring.
    Type: Grant
    Filed: December 7, 1988
    Date of Patent: December 5, 1989
    Assignee: Robert Bosch GmbH
    Inventors: Karl Konrath, Claus Koester, Karl Zibold, Manfred Schwarz, Karl-Friedrich Russeler, Klaus Krieger, Roland Kupzik
  • Patent number: 4875449
    Abstract: In order to prevent troublesome load change shocks in an internal combustion engine for a vehicle, the power control element thereof consists of an adjustment lever operationally positioned between two spring stops. The first spring stop provides elastic transmission of accelerator pedal commands from a fuel control cable and the second spring stop, which comprises a stronger spring, is effective only after the adjustment lever moves through a preset free path and engages a support fixed on the housing. As a result, during a fuel control cable motion defined by the first spring stop, the adjustment lever is not moved, whereas thereafter, during a further fuel control cable motion, the adjustment lever is moved since the force of the spring associated with the second stop is overcome.
    Type: Grant
    Filed: October 19, 1988
    Date of Patent: October 24, 1989
    Assignee: Volkswagen AG
    Inventors: Karl-Martin Kramer, Richard Dorenkamp
  • Patent number: 4864993
    Abstract: A boost compensator has a valve operative in response to a boost pressure. When the boost pressure is equal to or lower than a setting pressure, the valve intercepts communication between first and second chambers of the boost compensator which are partitioned by a diaphragm. When the boost pressure exceeds the setting pressure, the valve brings the first and second chambers into communication with each other. By the communication, pressure within the second chamber is raised so that the diaphragm and a push rod operatively connected to the diaphragm are moved toward the first chamber. As a result, a control member of a fuel injection pump is caused to be moved in a fuel decreasing direction.
    Type: Grant
    Filed: December 27, 1988
    Date of Patent: September 12, 1989
    Assignee: Diesel Kiki Co., Ltd.
    Inventors: Satoru Itoh, Hiroshi Naganuma
  • Patent number: 4831984
    Abstract: According to the present invention, there is provided a centrifugal governor for an injection type internal combustion engine, particularly an all speed governor for a small fuel injection pump which is accomodatable in a housing a cam shaft extends through. A flyweight is disposed at an end of the cam shaft so as to produce propulsion power backward, and the movement of the flyweight causes the tension lever, which has a point of support at its center, to rotate, thereby pressing a governor spring assembly of a concentric, multi-core spring which exerts no load on elements that support the spring assembly. The displacement of the flyweight causes via the tension lever the torque cam to rotate. A guide lever and a floating lever are rotatably supported at the lower end of the tension lever, and the opposite end of the guide lever is united with the floating lever by a cancellation spring.
    Type: Grant
    Filed: September 14, 1988
    Date of Patent: May 23, 1989
    Assignee: Disel Kiki Co., Ltd.
    Inventor: Masaatsu Takahashi
  • Patent number: 4817575
    Abstract: A fuel injection pump of the distributor pump type having a pump piston driven for simultaneous reciprocation and rotation, the supply quantity of which that is effective for injection is controlled by the opening of a relief conduit of the pump work chamber in that with the aid of a mechanical regulator an annular slide is moved into variable stroke positions on the pump piston. Additionally, for an electronic regulation of the total injection quantity, a pre-stroke (hv) is provided, which is determined by a first valve and which, under the control of a second, electrically controlled valve connected to the output side of the first valve, is added to the basic supply stroke in a variably effective manner in terms of injection. Thus the fuel injection quantity can be regulated within the context of the fuel injection quantity difference resulting from the pre-stroke.
    Type: Grant
    Filed: December 31, 1987
    Date of Patent: April 4, 1989
    Assignee: Robert Bosch GmbH
    Inventor: Gerald Hofer
  • Patent number: 4813389
    Abstract: A fuel injection system for spontaneous-combustion engines wherein a first reciprocable element regulates the quantity of injected fuel and a second reciprocable element regulates the timing of fuel injection. The elements are movable by discrete centrifugal governors on a shaft which is driven by the camshaft as a function of the RPM of the engine. The elements are further movable by additional moving devices in dependency on changes of other engine parameters. Such additional devices can include a turbo charger, a vacuum governor, a gas pedal and an arresting lever. The elements adjust the fuel injector pump or pumps of the engine.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: March 21, 1989
    Inventors: Ludwig Elsbett, Gunter Elsbett, Klaus Elsbett