Fuel Injection Pump Governor (e.g., Diesel) Patents (Class 123/364)
  • Patent number: 10107279
    Abstract: The subject invention provides a fluid flow apparatus for transporting a fluid to inflate and deflate a device including a pumping device and a housing defining a chamber, an inlet port, a fill port, and an exhaust port. A seal member is movable between a seated position closing the exhaust port and an unseated position. A motor has a shaft rotating in each of a first and second rotational direction. A clutch is disengaged from the shaft as the shaft rotates in the first rotational direction and is engaged with and rotates with the shaft as the shaft rotates in the second rotational direction. A centrifugal member is mounted and rotates with the clutch when the shaft rotates in the second rotational direction and engages the seal member to move the seal member to the unseated position for permitting the fluid within the chamber to escape through the exhaust port.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: October 23, 2018
    Assignee: KONGSBERG AUTOMOTIVE AB
    Inventors: Frank Dankbaar, Anders Grönhage
  • Patent number: 9523335
    Abstract: A plunger of a fuel pump is disclosed. The plunger may have a cylindrical base configured for axial movement and rotation within a pump barrel. The plunger may also have a fuel amount controlling end. The fuel amount controlling end may have a recessed surface region. The fuel amount controlling end may also have a sealing surface region. Further, the fuel amount controlling end may have a control interface connecting the recessed surface region with the sealing surface section in a radial direction. The transition from the recessed surface region to the control interface may be curved.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: December 20, 2016
    Assignee: Caterpillar Motoren GmbH & Co. KG
    Inventors: Andreas Von der Osten-Sack, Ole Ohrt
  • Patent number: 9512811
    Abstract: A fuel supply pump includes a low-pressure pump and a high-pressure pump. The low-pressure pump pumps up fuel from a fuel tank. The high-pressure pump includes a pressurizing chamber to which fuel pumped up by the low-pressure pump is supplied, and pressurizes fuel in the pressurizing chamber. The high-pressure pump further includes a cam shaft, a cam, a plunger, a housing, and a bush. The cam is provided eccentrically to a central axis of the cam shaft and is rotated integrally with the cam shaft. The plunger is driven by the cam to pressurize fuel in the pressurizing chamber. The housing accommodates the cam shaft. The bush is fixed to the housing to bearing-support the cam shaft. The housing includes a cooling passage, through which fuel discharged from the low-pressure pump flows on an outer peripheral side of the bush to serve as a medium for cooling the bush.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: December 6, 2016
    Assignee: DENSO CORPORATION
    Inventor: Naoto Oki
  • Publication number: 20150027406
    Abstract: An adjustment mechanism for allowing fine-tuning the amount of fuel to a Diesel engine by an operator of the engine is provided. A module conveniently within reach of the operator of the engine allows the operator to tune the engine independent of any throttle setting while the engine is operating. In one embodiment for an electronically controlled Diesel engine, an electrical input representative of barometric pressure to an electronic engine controller is modified to be under control of the operator, who can adjust the input independent of the throttle to vary injected quantities of fuel according to the instant conditions under which the engine is operating.
    Type: Application
    Filed: July 25, 2014
    Publication date: January 29, 2015
    Inventors: Douglas A. Cooper, Corey R. Springer
  • Patent number: 8875679
    Abstract: An apparatus for adjusting the fuel amount of a diesel engine is capable of preventing a decrease in the accuracy of the adjustment of the fuel amount. An engine stop operation input portion 12 is installed in the slider 5 and an engine stop operation output portion 13 is opposite to the engine stop operation input portion 12. When an engine stop operation is performed, engine stop operation force 14 is inputted from the engine stop operation output portion 13 to the engine stop operation input portion 12 and the slider 5 slides in the direction of the decrease in the fuel amount with the governor lever 1 remained intact so that the engine is stopped. A virtual line 16 is assumed to pass through a central portion of the biasing spring 9 when seen from a direction parallel to the adjustment amount rack pin 8.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: November 4, 2014
    Assignee: KUBOTA Corporation
    Inventors: Takahiro Yamazaki, Hiroki Kuwayama, Hozumi Ishida, Yutaka Ishigaki, Tadasi Nakano, Satoshi Fujii
  • Publication number: 20140060487
    Abstract: Disclosed are horsepower management systems and methods for use on power machines with an engine that powers a drive system. An engine speed control device controls the engine speed. A variable displacement drive pump controlled by a displacement control member provides pressurized fluid to a drive motor. A control system communicates with the engine speed control device and the pump displacement control member. The control system includes a user input device and a command lever rotatably coupled to the displacement control member and capable of receiving the user input. The command lever provides a signal to the engine speed control device in response to the user input. The command lever also commands a given displacement via the displacement control member subject to load forces on the hydrostatic pump transmitted to a limiting mechanism coupled to the command lever and the displacement control member.
    Type: Application
    Filed: December 28, 2012
    Publication date: March 6, 2014
    Applicant: Clark Equipment Company
    Inventors: Matthew J. Kaldor, Brian Dehnert
  • Patent number: 8087393
    Abstract: A valve apparatus for an internal combustion engine, the valve apparatus including: a main part having a wall section defining a valve cavity extending along a longitudinal length of the main part and an opening located in the wall section of the main part, the opening flow connected to the combustion chamber; an outer part configured and arranged so as to be reciprocally located in the valve cavity, the outer part having a wall section defining an inner passage extending along a longitudinal axis thereof; an inner part having a first end situated outside of the cavity and a second end situated within the cavity and the inner passage of the outer part, the inner part having a wall section defining an inner passage, a first opening at the first end, and one or more openings in that part of the walled section which is situated within the cavity.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: January 3, 2012
    Assignee: Arrow Leads, Inc.
    Inventor: Leonard Cascia
  • Patent number: 7948192
    Abstract: A dual redundant permanent magnet type dynamoelectric machine includes a dual flux throttle system to selectively disable one of a first motor and a second motor.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: May 24, 2011
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Richard A. Himmelmann
  • Patent number: 6955156
    Abstract: In an injection pump element 2, a communication route for communicating an injection pipe 3 connected to a fuel liquid outlet 212 and an inner peripheral surface of a plunger barrel 25 is formed by a purge passage 242 formed in a delivery valve seat 24, a purge passage 252 formed in the plunger barrel 25, and a purge port 253. When the injection pump element 2 is in a non-injection state, the plunger 26 is rotated circumferentially to such a rotational position that a purge groove 265 formed in an outer peripheral surface of the plunger 26 and a purge port 253 formed in an inner peripheral surface of the plunger barrel 25 are communicated to each other. The purge groove 265 is communicated to a fuel gallery 11 via a hole 263 and a notch 262. When the injection pump element 2 is in the non-injection state, the injection pipe 3 is communicated to the fuel gallery 11 even if the delivery valve 23 is closed.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: October 18, 2005
    Assignee: Bosch Automotive Systems Corporation
    Inventors: Toshifumi Noda, Shinya Nozaki, Daijo Ushiyama, Yukihiro Hayasaka
  • 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: 6901909
    Abstract: The centrifugal governor ensures that the governor lever (3) can apply a synthesized tensile force (STF) of the tensile forces (GS) of the main spring (4) and the tensile force (IS) of the idling spring (5) to the fuel adjuster (2) of the fuel pump (1) so as to increase the supply of fuel, and cause the governor weight (6) to decrease the fuel amount by pushing down the fuel adjuster (2), so that a disequilibrium between the synthetic tensile force (STF) of the two springs (4), (5) and the governor force (GF) is utilized for increasing or decreasing the supply of fuel through the operation of the fuel adjuster (2), and that the idling spring (5) which is constituted as a tension coiled spring spring-biases the governor lever (3) in the direction of increasing the supply of the fuel both in the non-load set and in the low-load set (LL), and negates the spring-biasing both in the high-load set (LH) and in the full-load set (4/4).
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: June 7, 2005
    Assignee: Kubota Corporation
    Inventors: Takahiro Kajihara, Shinkichi Iwasaki
  • Patent number: 6885932
    Abstract: A method and system for a misfire detection acquires (301) a series of acceleration data (302) representative of acceleration behavior of an engine. The data is sampled (304) to obtain acceleration data samples at a rate sufficient to obtain up to fourth-order perturbations of the data. The samples are filtered (322) to provide bandwidth limited samples, which are provided to at least two channels (325, 329). The samples are pattern matched (332) in a first channel to enhance harmonic phenomena and pattern canceled (330) in a second channel to enhance random phenomena. Hard and random misfires are detected (334) dependent on a magnitude of the filtered acceleration data samples. Preferably, a third channel (335) is added to detect multiple misfires.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: April 26, 2005
    Assignee: Motorola, Inc.
    Inventors: Louis Yizhang Liu, Richard J. Gilbert, Donald P. Kultgen, Jeffrey D. Naber, Hanlong Yang
  • Patent number: 6840216
    Abstract: In a mechanical fuel pump control device for a diesel engine, air at intake manifold pressure is fed to an actuator that is used to control the amount of fuel being injected into the engine cylinders. The mechanism is designed such that an increase in air pressure reduces fuelling and a decrease in air pressure increases fuelling. By this means the engine's (rotational) speed is held substantially constant at a predetermined value, the variation in (rotational) speed with increasing load (speed droop) being controllable within the design by altering the effective rate of fuel increase for given pressure decrease.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: January 11, 2005
    Assignee: Seneca Technology, Ltd.
    Inventor: Philip Clive Franklin
  • Patent number: 6757608
    Abstract: A method and a device for controlling operational sequences, particularly in a vehicle, at least one sensor having a connection unit being connected via a bus system to at least one control unit for controlling the operational sequences, the control unit likewise having a connection unit, and sensor information being transmitted to the control unit. The control unit reads in and/or processes the sensor information at specifiable synchronization points. A trigger signal is transmitted by the control unit via the bus system to the sensor in such a way with an allowance that the sensor information is available in a manner that it is able to be read in and/or processed exactly at the synchronization point for the control unit.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: June 29, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Helmut Gross, Bernhard Mencher, Peter Baeuerle
  • Patent number: 6668797
    Abstract: A fuel injection pump system specifically designed to provide a variety of fuels, including aviation kerosene-jet fuel, arctic fuels and diesel fuels to a single cylinder compression ignited engine using a single bore fuel injection pump and governor in a single housing. The fuel injection pump system includes a housing enclosing a fuel injection pump with governor system which is attached directly to the engine casing. thereby using the engine's oil for lubrication of the fuel injection pump. The internally attached governor system enables the engine to idle smoothly at a predetermined speed and also provide high-speed protection by reducing fuel at predetermined RPM settings. A uniquely designed plunger and barrel in the fuel injection pump incorporates an anti-knock helix shaped plunger that changes the idle injection timing for sound attenuation.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: December 30, 2003
    Assignee: Advanced Vehicle Technologies
    Inventor: Steven R. Smith
  • Publication number: 20030209226
    Abstract: A fuel injection pump system specifically designed to provide a variety of fuels, including aviation kerosene-jet fuel, arctic fuels and diesel fuels to a single cylinder compression ignited engine using a single bore fuel injection pump and governor in a single housing. The fuel injection pump system includes a housing enclosing a fuel injection pump with governor system which is attached directly to the engine casing thereby using the engine's oil for lubrication of the fuel injection pump. The internally attached governor system enables the engine to idle smoothly at a predetermined speed and also provide high-speed protection by reducing fuel at predetermined RPM settings. A uniquely designed plunger and barrel in the fuel injection pump incorporates an anti-knock helix shaped plunger that changes the idle injection timing for sound attenuation.
    Type: Application
    Filed: May 13, 2002
    Publication date: November 13, 2003
    Inventor: Steven R. Smith
  • Patent number: 6443127
    Abstract: A governor comprising a centrifugal weight mechanism coupled to an angularly adjustable metering valve member and an adjuster for adjusting the axial position of the meeting valve member to permit droop control.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: September 3, 2002
    Assignee: Delphi Technologies, Inc.
    Inventors: Geoffrey David Bootle, William Robert Burborough
  • Publication number: 20020096141
    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: Application
    Filed: November 13, 2001
    Publication date: July 25, 2002
    Inventor: Geoffrey D. Bootle
  • Publication number: 20020053339
    Abstract: A governor comprising a centrifugal weight mechanism coupled to an angularly adjustable metering valve member and an adjuster for adjusting the axial position of the meeting valve member to permit droop control.
    Type: Application
    Filed: November 29, 1999
    Publication date: May 9, 2002
    Inventors: GEOFFREY DAVID BOOTLE, WILLIAM ROBERT BURBOROUGH
  • Patent number: 6360716
    Abstract: A governor for use in an engine, the governor including a drive shaft and a plurality of weights carried by the drive shaft. The weights are rotatable with the drive shaft and are moveable relative to the drive shaft. A lever is moveable in response to movement of the weights, the lever being moveable against the action of a return biasing arrangement. The governor further includes a further arrangement for holding at least one of the weights against movement so as to permit adjustment of the operating speed of the governor.
    Type: Grant
    Filed: September 7, 2000
    Date of Patent: March 26, 2002
    Assignee: Delphi Technologies, Inc.
    Inventor: Geoffrey David Bootle
  • Patent number: 5647320
    Abstract: A method and device for assembling and setting the injection pump elements in which the control rod is pressed against an elastically compliant stop in the form of a pin, which engages one end of a longitudinal groove of the control rod. In this position of the control rod, the injection pump elements have an adjusting pin inserted into a recess of the control rod, which adjusting pin is connected by a control arm to the plunger of the injection pump element, and the injection pump element is rotated so that the control arm lies against a stop of the injection pump element. The injection pump element is then bolted in place in this position.By this method and device the control rod, during assembly, is intentionally set a short distance further than it is possible to move it in normal operation by the controller.
    Type: Grant
    Filed: June 13, 1995
    Date of Patent: July 15, 1997
    Assignee: Klockner-Humboldt-Deutz AG
    Inventors: Rolf Preuss, Josef Vonnahme
  • Patent number: 5460132
    Abstract: A fuel injection pump for an engine comprises a magnetic coupling 37 straddling a partition 36 for connecting a timing control rod 6 and a displacement transfer section 34 of a governor so as to enable efficient transfer of rotational force from the displacement transfer section to the timing control rod without need for an oil seal therebetween, and a prestroke controller for the fuel injection pump 131 includes an injection advance adjustment add-on device 136 for conducting prestroke control independently of the magnetic coupling and thereby provide greater freedom in establishing injection timing advance characteristics by enabling injection timing control in response to temperature or load and/or a safety mechanism 237 for ensuring operation of a governor mechanism 20 based on movement of a flyweight 11 even if the magnetic coupling should stick.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: October 24, 1995
    Assignee: Zexel Corporation
    Inventors: Hiroshi Ishiwata, Tohru Yokota, Mitsuaki Kobayashi
  • 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: 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: 5247917
    Abstract: A fuel injection pump for internal combustion engines with a plurality of pump elements in which the fuel injection quantity is varied via a governor rod, which is supported in a U-shaped guide rail; according to the invention, this guide rail is loaded in its middle region by at least one spring element, in order to prevent transverse vibration of the governor rod.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: September 28, 1993
    Assignee: Robert Bosch GmbH
    Inventors: Karsten Hummel, Karl Rapp, Hansjoerg Frey
  • Patent number: 5190004
    Abstract: Herein disclosed is an internal combustion engine in which a cylinder block at a side thereof opposed to a fly-wheel in the crankshaft direction has an opening covered with a side cover. A power take-off provided at a side of the side cover, and crankshaft has its one end supported by a bearing of the side cover. A lubricating oil pump is disposed in the cylinder block wall at the side of the fly-wheel.
    Type: Grant
    Filed: September 11, 1991
    Date of Patent: March 2, 1993
    Assignee: Yanmar Diesel Engine Co., Ltd.
    Inventor: Mitsunori Iwata
  • 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: 5080564
    Abstract: A prestroke control device for a fuel injection pump includes at least one control sleeve slidably fitted on at least one plunger, a control rod engaging the control sleeve, the control rod extending perpendicularly to the plunger and rotatable about an axis thereof for varying an axial position of the control sleeve relative to the plunger to thereby control the prestroke of the plunger, and an actuator for rotatively driving the control rod about its own axis. A counterweight is movable in unison with rotation of the control rod for cancelling a rotating force generated by axial movement of the control sleeve and acting upon the control rod.
    Type: Grant
    Filed: January 24, 1990
    Date of Patent: January 14, 1992
    Assignee: Diesel Kiki Co., Ltd.
    Inventors: Toshiaki Kasahara, Kenichi Kubo, Hiroshi Ishiwata, Toru Yokota, Susumu Yamaguchi
  • 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: 4895119
    Abstract: A speed governing apparatus for an internal combustion engine. A plurality of flyweights are pivoted to a flyweight carrier mounted on the cam shaft of the engine and a surface of each flyweight is engaged with the end of a spool that is mounted for rotation with the cam shaft, but can move axially thereof. A spring loaded non-rotatable fork straddles the cam shaft and is engaged with the opposite end of the spool. The fork is secured to a rod which, in turn, is operably connected to the throttle of the engine. The end of the spool, against which the fork rides, is an undulating cam surface which results in the continuous axial oscillation of the spool, and corresponding continuous radial oscillation of the flyweights relative to the spool, during operation of the engine.
    Type: Grant
    Filed: May 16, 1988
    Date of Patent: January 23, 1990
    Assignee: Briggs & Stratton Corporation
    Inventor: Joseph R. Harkness
  • Patent number: 4854282
    Abstract: The control magnet is secured with cap screws on a cap of a control mechanism of an injection pump by means of a holder element, which is a two-armed leaf spring having pre-stressing. The leaf spring has a middle section which comes to rest flush on the magnet core and both arms come to rest flush on a support face of the cap. The spring force spring stressing of the two-armed leaf spring pre-stressed in this manner has an effect of keeping the control magnet secured such that it is not jarred loose even in the event of high acceleration peaks of the injection pump.
    Type: Grant
    Filed: October 9, 1987
    Date of Patent: August 8, 1989
    Assignee: Robert Bosch GmbH
    Inventor: Peter Knorreck
  • Patent number: 4850321
    Abstract: In a fuel injection system having a stepper motor (40) positioning the pump rack (32) in the fuel injection pump (18) to control the end of injection, a preloaded, compliant linkage (52,54,56) is interposed between the stepper motor output pinion gear (48) and the pump rack (32) to prevent a phase shift between the actual and the desired stepper motor position. The preload of the linkage (52,54,56) is set at greater than the normal operating load and less than the stepper motor output. The linkage includes a rack member (52) that is urged by a spring-loaded mechanism (76) against the output pinion (48) of the stepper motor (40) to maintain tooth engagement, and a clevis member (56) that is pivoted to allow the rack member to move away from the pinion in the event of a pump rack load of extremely high (tooth-damaging) magnitude. A closed throttle position is assured by a spring (99) urging the single-acting linkage against a stop (98).
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: July 25, 1989
    Assignee: AIL Corporation
    Inventors: Eric S. Brisbon, Mark Krosney
  • Patent number: 4834046
    Abstract: A disc-shaped centrifugal weight support (2) for a centrifugal force governor having recesses (3) for accepting knife-edge supported centrifugal weights (4) maintained in an assembled relationship by abutment means such as a ring (7) to form a single-unit mountable assembly.
    Type: Grant
    Filed: October 21, 1987
    Date of Patent: May 30, 1989
    Assignee: Kloeckner-Humboldt-Deutz AG
    Inventors: Horst-Herbert Krause, Werner Lemme
  • Patent number: 4796581
    Abstract: The governor includes a torque-control capsule actuated by a governor member that adjusts in accordance with rpm and disposed in a force-transmitting member subject to the force of a governor spring, by means of which torque-control capsule both the onset and control stroke (b) of torque control are adjustable or settable in an infinitely graduated manner without affecting one another. The torque-control capsule has a stop bolt inserted in a stepped longitudinal bore of a stop housing, a torque-control spring and an adjusting screw, which forms an abutment for the torque-control spring. The adjusting screw is adjustable in an infinitely graduated manner and is secured in a positionally fixed manner inside the stop housing in the vicinity of an internal thread.
    Type: Grant
    Filed: February 29, 1984
    Date of Patent: January 10, 1989
    Assignee: Robert Bosch GmbH
    Inventor: Werner Bruhmann
  • Patent number: 4794899
    Abstract: A correction spring capsule which has a stop bolt inserted in a stepped longitudinal bore of a housing embodied as a screw sheath, a correction spring and an adjusting screw, which forms the abutment for the correction spring. This adjusting screw has the form of a cup-shaped adjusting ring provided with a continuous external thread and having a bottom and a sheath-like wall. The sheath-like wall is deformed into an oval shape in order to attain positional fixation of the adjusting screw and has its greatest deformation in the vicinity of one end section that is open toward the outside. As a result, the adjusting screw is infinitely adjustable and is secured in a positionally fixed manner in any position inside the housing in the vicinity of an internal thread.
    Type: Grant
    Filed: February 29, 1984
    Date of Patent: January 3, 1989
    Assignee: Robert Bosch GmbH
    Inventor: Werner Bruhmann
  • Patent number: 4735182
    Abstract: Centrifugal speed governor of fuel injection pumps for internal combustion engines comprising a centrifugal force adjuster, which actuates an articulated head with its centrifugal weights. The articulated head articulates a double-armed guide lever with brackets by means of an axle. The axle 17 is supported by means of a cross bearing in the articulated head and in a borehole has an oblong cross section which in the adjusting direction, so that the axle can execute a limited swiveling movement about the cross bearing in the borehole.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: April 5, 1988
    Assignee: Robert Bosch GmbH
    Inventors: Werner Bruhmann, Ernst Ritter
  • Patent number: 4735180
    Abstract: A centrifugal adjuster for a fuel injection pump governor having a driving part driven at an rpm in synchronism with the engine and having a torsionally elastically coupled flyweight holder guided in a rotational guide. Via a step, beyond a predetermined rotational deflection, the centrifugal adjuster displaces the flyweight holder axially with respect to the driving part, so that a jolt-like stroke effected by means of the step is superimposed on the regulating stroke effected via the flyweights of the centrifugal adjuster whenever the rpm is at a low level, for instance at idling rpm. As a result, a friction that leads to see-sawing of the engine and exhibits pronounced hysteresis is shaken out of the governor.
    Type: Grant
    Filed: June 10, 1986
    Date of Patent: April 5, 1988
    Assignee: Robert Bosch GmbH
    Inventor: Manfred Kramer
  • Patent number: 4706626
    Abstract: A fuel injection pump for internal combustion engines having in-line pumping elements, having pump pistons on which control slides are axially displaceable, in particular for adjusting the injection onset; in a relatively greatly displaced position, these control slides being arranged to interrupt the injection. The control slides are moved by first and second governor rods, each part of which carries one group of driver members of the control slides, and both governor rods are rotatable relative to one another. As a result, it is possible for normal operation to be controlled by the one governor rod, while at the same time an appropriate number of engine cylinders is shut off by the other governor rod, in that the associated control slides are displaced into respective corresponding positions.
    Type: Grant
    Filed: August 23, 1985
    Date of Patent: November 17, 1987
    Assignee: Robert Bosch GmbH
    Inventors: Walter Hafele, Josef Guntert
  • Patent number: 4617894
    Abstract: A fuel injected internal combustion engine which drives a device such as a vehicle which is susceptible to sudden undesirable acceleration or deceleration is provided with injection pumps having fuel quantity control members which are coupled to an activator which in turn effects simultaneous adjustment of the control members under the control of an operator. At least one mass is coupled to the activator and prevents or compensates for undesired forces tending to effect movement of the control members as a result of accidental acceleration or deceleration of the device.
    Type: Grant
    Filed: May 1, 1985
    Date of Patent: October 21, 1986
    Assignee: Motorenfabrik Hatz GmbH & Co. KG
    Inventor: Guenter Kampichler
  • Patent number: 4580538
    Abstract: There is proposed a speed governor for a fuel injection pump for internal combustion engines having a governor lever for setting the fuel injection quantity and a governor spring assembly arranged to engage the governor lever and counter to which an rpm-dependent force acts. To compensate for manufacturing tolerances of the governor spring assembly, it is also proposed that the effective length of a spring of the governor spring assembly be varied by realizing one of the supporting parts of the governor spring assembly as a multiple-part element. The supporting part is embodied such that it can be displaced by an adjusting lever in order to vary the pre-stressing of the governor spring, and that the first part is extended coaxially through it out of the interior of the fuel injection pump and can then be rotated in order to adjust the effective length of the governor spring and then fixed in an intended rotational position.
    Type: Grant
    Filed: February 12, 1985
    Date of Patent: April 8, 1986
    Assignee: Robert Bosch GmbH
    Inventor: Franz Eheim
  • Patent number: 4576130
    Abstract: A fuel injection pump for internal combustion engines is disclosed, in which a profiled governor rod of a supply quantity adjusting member, the latter controlled by a final control element, is extended at its end toward the final control element out of the pump housing and is supported in a displaceable manner at the point where it emerges. For the sake of sealing the support point, a cylindrical slide bearing sheath is secured in the pump housing at the location where the governor rod emerges from the pump housing. A cylindrical governor rod guide means which is joined to the profiled governor rod and closes it off or surrounds it in a sealing manner is guided displaceably, with the least possible play, in the slide bearing sheath.
    Type: Grant
    Filed: December 12, 1984
    Date of Patent: March 18, 1986
    Assignee: Robert Bosch GmbH
    Inventors: Walter Hafele, Peter Knorreck
  • Patent number: 4567870
    Abstract: A governor system for controlling the setting of a fuel control member of a fuel injection pump includes a manually operable member, a connecting device connecting said members, the connecting device being such as to allow movement of the fuel control member independently of the manually operable member. The system includes a pivot lever upon which acts a speed responsive device which moves the lever in opposition to the force exerted by resilient means in the middle speed range of the associated engine. The lever is connected to the fuel control member through a dash-pot device which acts in the middle speed range to adjust the setting of the fuel control member if there is a sudden change of engine speed. A high speed spring and an idling spring are also provided to provide a normal two speed governor action.
    Type: Grant
    Filed: October 13, 1981
    Date of Patent: February 4, 1986
    Assignee: Lucas Industries Limited
    Inventor: Brian W. Tumber
  • Patent number: 4541391
    Abstract: Fuel injection apparatuses are used to inject fuel into the combustion chambers of compression ignition engines. The known mechanical drive arrangements for driving the distributor rotor and controlling beginning moment of fuel injection are complex, bulky and expensive to manufacture. The subject timing control for fuel injection apparatus includes a planetary gear arrangement driven by a pumping section and drivingly connected to a distributor rotor. A ring gear controls the timing phase relationship between the rotor and a delivery passage communicating the pumping section with the rotor. A riser of a flyweight assembly is mechanically connected to the ring gear so that the ring gear is positioned in accordance with the engine speed. The planetary gear arrangement is of simple construction requiring a minimum of space and is relatively inexpensive to manufacture.
    Type: Grant
    Filed: March 27, 1984
    Date of Patent: September 17, 1985
    Assignee: Caterpillar Tractor Co.
    Inventor: Dennis H. Gibson
  • Patent number: 4531492
    Abstract: Fuel injection devices are used for injecting fuel into the combustion chambers of compression ignition engines. It is desirable to isolate the mechanical drive for fuel injection timing from the flow path of high pressure fuel to minimize the seepage of fuel into the fluid lubricating the mechanical drive while using only one speed responsive device for both the timing and governing functions. The subject fuel injection apparatus includes a planetary gear arrangement having a ring gear to change the timing phase relationship between a distributor rotor and a delivery passage which communicates the pump section with the rotor. A metering collar is adapted to meter the quantity of fuel delivered by the rotor to the outlet ports. Both the ring gear and the metering collar are mechanically connected to an element of a single flyweight assembly. The metering collar is widely spaced from the planetary gear arrangement to minimize the leakage of fuel into the lubricating fluid.
    Type: Grant
    Filed: March 27, 1984
    Date of Patent: July 30, 1985
    Assignee: Caterpillar Tractor Co.
    Inventor: Dennis H. Gibson
  • Patent number: 4512305
    Abstract: For concurrently regulating the delivery of fuel-injection pumps of polycylindrical Diesel engines, a rod slidably supported by antifriction means is operatively connected to the individual pump governors. The supporting members are mounted with the aid of centering rings which coact with flanges secured to the engine block by screws.The problem of the simultaneous control of a number of injection pumps is thus solved both simply and cheaply.
    Type: Grant
    Filed: October 7, 1983
    Date of Patent: April 23, 1985
    Assignee: SAME S.p.A.
    Inventor: Luigi Pitozzi
  • Patent number: 4499873
    Abstract: The control rod system for the fuel injection devices being designed as pump-nozzle-units (1) for Diesel engines comprises two control rods (7, 8) offset transversely relative to the axis to the pump-nozzle-unit and in longitudinal direction of this axis, said control rods being connected via slide pieces (11, 12) and lever arms (15, 16) with the control shafts (9, 10) rotatably supported on the engine and being common for all pump-nozzle-units (1). As seen in axial direction of the pump-nozzle-unit (1), at least the slide piece (12) located less remote from the nozzle is, with retracted control rod (8), not overlapping the control shaft (9) which is located more remote from the nozzle, so that dismounting of the pump-nozzle-unit by moving it upwardly can be effected without dismounting the control shaft (FIG. 5).
    Type: Grant
    Filed: January 12, 1981
    Date of Patent: February 19, 1985
    Assignee: Friedmann & Maier Aktiengesellschaft
    Inventor: Gerhard Lehner
  • Patent number: 4463720
    Abstract: A flyweight governor comprising first and second sets of flyweights disposed pivotably on a flyweight support, the flyweights of the first set are arrested by stops after having traversed an idle speed angle of traverse (.alpha..sub.LL), on which stops the flyweights of said second set rest only after having traversed the total angle of traverse (.alpha..sub.max). The flyweight masses of the first set of flyweights acting only in the idle speed control have, in their position of rest, an outer contour which is, in comparison to said second set of flyweights, displaced further outwardly with an inclination angle (.beta..sub.LL) to the rotational axis (A) corresponding to the idle speed angle of traverse (.alpha..sub.LL).
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: August 7, 1984
    Assignee: Robert Bosch GmbH
    Inventor: Ernst Ritter
  • Patent number: 4448166
    Abstract: A unit injector is disposed on a cylinder head in an oblique state and rocker arms for actuating intake and exhaust valves, respectively, are disposed on both sides of the unit injector. Another rocker arm for actuating the unit injector is disposed between these two rocker arms. Support beds for supporting a rocker arm shaft that supports both rocker arms for actuating the intake and exhaust valves and another rocker arm shaft that supports the rocker arm for actuating the unit injector are formed as a unitary structure. One cam shaft for operating the rocker arms for actuating the intake and exhaust valves and the rocker arm for actuating the unit injector is disposed at a low position on the side of the unit injector as close as possible to the axis of a piston.
    Type: Grant
    Filed: November 30, 1981
    Date of Patent: May 15, 1984
    Assignee: Yanmar Diesel Engine Co., Ltd.
    Inventors: Koichi Amemori, Toshihiko Kawabe
  • Patent number: 4426970
    Abstract: A resilient drive for a fuel injection pump governor comprising a resilient coupling connecting the governor speed sensing mechanism to the governor shaft. In a preferred embodiment, the governor flyweight assembly is rotatably mounted with respect to the governor shaft and is connected thereto by a resilient coupling which permits the limited momentary rotation of the flyweight assembly with respect to the shaft to dampen torsional vibrations.
    Type: Grant
    Filed: January 12, 1981
    Date of Patent: January 24, 1984
    Assignee: Ambac Industries, Inc.
    Inventors: Leon A. Galis, Richard J. Czarnik
  • Patent number: 4397277
    Abstract: In a centrifugal governor for use with an internal combustion engine, means is provided which is adapted to bring an adjusting member into urging contact with a fuel quantity increasing lever engaging the guide lever and the floating lever only at engine full load in medium and high engine speed ranges, whereby contraction of the adaptation spring causes angular displacement of the fuel quantity increasing lever in the fuel quantity increasing direction. Stopper means may also be provided which is adapted to be in urging contact with the fuel quantity increasing lever in the medium and high engine speed ranges to prohibit angular displacement of the fuel quantity increasing lever in the fuel quantity decreasing direction which is caused by the contraction of the adaptation spring, when the adjusting member is positioned off the fuel quantity increasing lever at engine partial load.
    Type: Grant
    Filed: November 2, 1981
    Date of Patent: August 9, 1983
    Assignee: Diesel Kiki Co., Ltd.
    Inventor: Masaatsu Takahashi