US3577968A - Centrifugal r.p.m. regulator for internal combustion engines - Google Patents

Centrifugal r.p.m. regulator for internal combustion engines Download PDF

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Publication number
US3577968A
US3577968A US862877A US3577968DA US3577968A US 3577968 A US3577968 A US 3577968A US 862877 A US862877 A US 862877A US 3577968D A US3577968D A US 3577968DA US 3577968 A US3577968 A US 3577968A
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US
United States
Prior art keywords
lever
spring
governor sleeve
support lever
regulator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US862877A
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English (en)
Inventor
Heinrich Staudt
Eberhard Hofmann
Rolf Muller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
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Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19681803564 external-priority patent/DE1803564C3/de
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Application granted granted Critical
Publication of US3577968A publication Critical patent/US3577968A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
    • F02D1/02—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
    • F02D1/04—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered by mechanical means dependent on engine speed, e.g. using centrifugal governors
    • F02D1/045—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered by mechanical means dependent on engine speed, e.g. using centrifugal governors characterised by arrangement of springs or weights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
    • F02D1/02—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
    • F02D1/08—Transmission of control impulse to pump control, e.g. with power drive or power assistance
    • F02D1/10—Transmission of control impulse to pump control, e.g. with power drive or power assistance mechanical

Definitions

  • 'rhe p m regulator includes a springJoaded support arm Fozd 1/06 against which the governor sleeve is adapted to abut after Field of sum traveling a predetermined distance under the force exened (I), 140198 the centrifugal weights as the engine r.p.m. increases. Beyond a predetermined r.p.m. the last-named force overcomes the CM force of the su port lever spring thus permitting the governor P UNWED STA'I'ES PATENTS sleeve to be further displaced, shifting thereby said control 2,539,738 1 /1951 Grim et a1 123/140 member to lessen the injected fuel quantities.
  • the device is of the type that includes an intermediate lever connected at one end to a governor sleeve displaceable as a function of the r.p.m. and attached at the other end to a fuel quantity control member of a fuel injection pump.
  • the intermediate lever is also movable by an externally operable regulator link connected to said intermediate lever and serving for an arbitrary adjustment of said fuel quantity control member.
  • the intermediate lever pivots about its coupling with the regulator link and for motions of the regulator link, the intermediate lever pivots about its coupling with the governor sleeve.
  • the governor sleeve abuts, subsequent to a certain displacement in opposition to the force of an idler spring, against a support lever which is in engagement with an adjustable stop and which is pivotable about a stationary pin and is exposed to a regulator leaf spring, the force and effective length of which is adjustable.
  • the axial displacements of the governor sleeve 6 are transmitted by means of shift lever 7, an intermediate lever 8, a guide rod 9 and an arm 10 to a fuel delivery control rod 11 of the fuel injection pump.
  • the shift lever 7 is pivotally secured to housing 12 by a pin 13.
  • I operable adjusting lever 21 and is, on the one hand, pivotally secured to housing 12 by means of a pin 20, and, on the other hand, is connected to intermediate lever 8 by means of a pin 18 affixed to one end of regulator link 19 and extending into guide slot 17.
  • the guide rod 9 which is pivotally attached to the intermediate lever 8 at one end and which carries an accumulator 22 at the other end, transmits the setting forces exerted by the governor sleeve 6 and the regulator link 19 to an arm 10 affixed to the fuel quantity control rod 11. Should the latter, at the end of its travel in either of two possible directions, abut against a stop, the spring 23 of the accumulator 22, in case of continuing setting forces, is compressed from one or the other direction.
  • the preload of spring 23 is so designed that it overcomes at least the frictional forces generated in the r.p.m. regulator and in the fuel injection pump.
  • an axial depression 25 in which nests one end of an idler coil spring 26.
  • the latter extends through an opening 27 provided in a support lever 28 and engages, with its other end, a spring seat disc 29 secured to an adjusting screw 29 which is held in a twice-bent terminal portion 30 of the support lever 28.
  • the free end face of the adjusting screw 29 is provided with a radial slot 31 adapted to receive an adjusting tool such as a screwdriver.
  • the adjusting screw 29 may be immobilized in any position by means of a securing nut 32.
  • the support lever 28 is pivotally held by a pin 33, which, in turn, is fixedly secured to housing 12.
  • Pin 33 also serves as a pivotal support for a regulator leaf spring 34 and a bellcrank lever 35.
  • the fonner engages, with its terminus remote from the pin 33, a forklike end portion 36 of the support lever 28.
  • Said forklike end portion 36 engages a radial pin 37 rigidly secured to a head 40' of a support bolt 40 provided with a longitudinal groove 38.
  • the support bolt 40 is slidably held in a bore of a projection 41 of the housing 12 and is prevented from rotating by a pin 39 held in projection 41 and extending into groove 38 of support bolt 40.
  • a coil spring 43 urging the support bolt 40 outwardly of the bore of projection 41.
  • a nut 42 threadedly received by support bolt 40 and abutting against an opposed upstanding face of projection 41, retains the support bolt 40 in the projection 41 against the force of spring 43 and when rotated, effects an axial adjustment of support bolt 40, together with pin 37.
  • One leg 35 of bellcrank lever 35 forms a support for a cylindrical fulcrum 44 threadedly secured to, and longitudinally adjustable along leg 35' by, a bolt 45 (held by bellcrank lever 35) to vary the effective length of leg 35.
  • the other leg 35" of the bellcrank lever 35 engages with its terminus a stud 46 which is threadedly secured to, and longitudinally adjustable by, a bolt 47 (held in housing 12) to change the angular position of the bellcrank lever 35 in such a manner that the cylindrical fulcrum 44, depending in which direction the adjusting bolt 47 is turned, is urged with greater or lesser force against the spring 34.
  • the force exerted by the fulcrum 44 on the leaf spring 34 generates a preload therein, whichdetermines a maximum permissible r.p.m.
  • the position of fulcrum 44 along the arm 35' determines the advantage and the spring constant of leaf spring 34, thus determining the proportional range of the r.p.m. regulator.
  • housing 12 has a respective opening 12 and 12" normally covered with a removable closure plate 48 and 49, respectively.
  • the aforedescribed structure permits an adjustment of the idling r.p.m. by means of adjusting screw 29 independently of the adjustment of leaf spring 34.
  • the r.p.m. regulator is shown in a position when the internal combustion engine is at standstill.
  • the externally operable lever 21 is in a position for idling.
  • the operating lever 21 For starting the engine, the operating lever 21 is brought into its full-load" position whereby the fuel quantity control rod 11 is displaced into a starting position by the linkage assembly consisting of the adjusting link 19, the intermediate lever 8, the guide rod 9 and the arm 10.
  • the fuel injection pump delivers to the internal combustion engine a fuel quantity which is in excess of the full-load" quantities and which facilitates the starting of the engine.
  • the r.p.m. of the engine continuously increases and the weights 3 swing outwardly under the centrifugal forces from their position shown in the FIGURE.
  • the weights 3 exert with arms 4, a force through the roller bearing 5 on the governor sleeve 6 which travels distance X against the force of the idler spring 26 and then, with frontal face 24, abuts against the support lever 28.
  • the bolt 16 pulls the fuel quantity control rod 11 from its engine-starting position into the full-load position by means of articulated transmission members 7, 8, 9 and 10.
  • the r.p.m. regulator remains in this position during further increase of r.p.m., until the latter reaches a maximum r.p.m. set by the preload of the spring 34. Should this maximum r.p.m. be exceeded by an only partially loaded engine, the axial force exerted by the arms 4 on governor sleeve 6 overcomes the force of leaf spring 34 and, as a result, the governor sleeve 6, moving the support lever 28 away from its abutment pin 37, travels beyond path X.
  • the governor sleeve 6 shifts (by means of transmission members 7, 8, 9, 10) the fuel quantity control rod 11 until it assumes a position in which the fuel quantity delivered by the fuel injection pump is decreased to correspond to the momentarily required engine output and to ensure that the r.p.m. is main tained within the proportional range.
  • the easily accessible support bolt 40 permits the provision of an additional device in contact therewith for the arbitrary adjustment of the abutment 37.
  • Such an additional device may be a lever, an electromagnet or a pneumatic adjusting mechanism.
  • An adjustment of support bolt 40 displaces support lever 28, changing thereby the preload of the leaf spring 34 and the length of path X. ln this manner the regulator characteristics are varied.
  • the possibility of such variation is desirable to enable an adaptation of the r.p.m. regulator to different operational conditions of the engine such as overload run or charging run, operation at high altitudes or when minimum power output is desired.
  • the above-described centrifugal governor device is a regulator that controls an idling and a maximum r.p.m. In one terminal position of operating lever 21 the device determines the idling r.p.m. of the engine, whereas in intermediate positions of the operating lever 21 and in its other terminal position, it sets predetermined fuel quantities. If, m any of these lastnamed two positions of the operating lever 21 the maximum predetermined r.p.m. is exceeded, the regulator device automatically decreases the r.p.m.
  • abutment pin 37 permits to convert without additional changes, the aforedescribed regulator for controlling an idling and a maximum r.p.m., into a centrifugal control device which seeks to maintain any r.p.m. value lying between the idling r.p.m. and a maximum r.p.m. and a maximum r.p.m. and set by the operating lever 21.
  • a centrifugal governor device for regulating the r.p.m. of an internal combustion engine, where said device is of the known type that includes (A) a governor sleeve displaceable as a function of the engine-r.p.m., (B) a linkage assembly connecting said governor sleeve with a fuel quantity control member to cause an r.p.m.-dependent displacement of the latter, (C) an intermediate lever fon'ning part of said linkage assembly and (D) an arbitrarily settable operating lever connected to said intermediate lever to displace said fuel quantity control member at will, the improvement comprising:
  • said idler spring is a coil spring arranged in axial alignment with said governor sleeve
  • said support lever includes an opening through which said coil spring is adapted to extend
  • said support lever further includes a part that carries said adjusting means associated with said idler spring, said last-named adjusting means supports one end of said idler spring.
  • said regulator spring is a leaf spring mounted on, and movable about said pivot
  • said adjusting means associated with said regulator spring includes a fulcrum in engagement with, and adjustable along, said regulator spring to vary the preload force exerted by the latter on said support lever.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)
US862877A 1968-10-17 1969-10-01 Centrifugal r.p.m. regulator for internal combustion engines Expired - Lifetime US3577968A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681803564 DE1803564C3 (de) 1968-10-17 Fliehkraftregler zur Drehzahlregelung von Brennkraftmaschinen

Publications (1)

Publication Number Publication Date
US3577968A true US3577968A (en) 1971-05-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
US862877A Expired - Lifetime US3577968A (en) 1968-10-17 1969-10-01 Centrifugal r.p.m. regulator for internal combustion engines

Country Status (5)

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US (1) US3577968A (enrdf_load_stackoverflow)
AT (1) AT298880B (enrdf_load_stackoverflow)
FR (1) FR2020893A1 (enrdf_load_stackoverflow)
GB (1) GB1287631A (enrdf_load_stackoverflow)
PL (1) PL69752B1 (enrdf_load_stackoverflow)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3759236A (en) * 1970-10-03 1973-09-18 Bosch Gmbh Robert Centrifugal governor for regulating the rpm of internal combustion engines
US3791362A (en) * 1971-12-23 1974-02-12 Komatsu Mfg Co Ltd Governor for controlling the fuel delivery of a fuel injection pump for an internal combustion engine
US3797470A (en) * 1972-02-10 1974-03-19 Teledyne Ind Fuel regulating system for an internal combustion engine
US3830211A (en) * 1972-05-20 1974-08-20 Bosch Gmbh Robert Centrifugal governor for controlling the rpm of injection type internal combustion engines
US3841111A (en) * 1972-03-21 1974-10-15 Bosch Gmbh Robert Elastic rotary coupling for a centrifugal governor of an rpm regulator associated with an internal combustion engine
US3884206A (en) * 1973-02-20 1975-05-20 Bosch Gmbh Robert Centrifugal rpm regulator for internal combustion engines
US3903860A (en) * 1973-07-07 1975-09-09 Bosch Gmbh Robert Centrifugal rpm governor for fuel injected internal combustion engines
US3911885A (en) * 1974-10-31 1975-10-14 Caterpillar Tractor Co Torque rise limiting governor
US3923025A (en) * 1973-04-20 1975-12-02 Diesel Kiki Co Fuel injection pump governor assembly for an internal combustion engine
US3923026A (en) * 1973-06-01 1975-12-02 Diesel Kiki Co Diesel engine fuel injection pump governor
US3926164A (en) * 1972-06-06 1975-12-16 Sigma Regulating devices for the flow of fuel for internal combustion engines
US3938488A (en) * 1973-06-01 1976-02-17 Diesel Kiki Co., Ltd. Diesel engine fuel injection pump governor
US3970064A (en) * 1974-01-23 1976-07-20 Robert Bosch G.M.B.H. RPM regulator for fuel injection pumps
US3973542A (en) * 1973-03-06 1976-08-10 C.A.V. Limited Liquid fuel injection pumping apparatus
US3973541A (en) * 1973-05-30 1976-08-10 Kabushiki Kaisha Komatsu Seisakusho Governor for use in fuel injection pump
US4038958A (en) * 1974-04-23 1977-08-02 Diesel Kiki Co. Fuel injection pump governor
US4054112A (en) * 1974-08-01 1977-10-18 Diesel Kiki Co., Ltd. Fuel injection governor
US4100890A (en) * 1975-06-13 1978-07-18 Diesel Kiki Co., Ltd. Mechanical governor for internal combustion engine
US4109629A (en) * 1974-04-01 1978-08-29 C.A.V. Limited Fuel injection pumping apparatus
US4121555A (en) * 1975-06-14 1978-10-24 Motoren-Und Turbinen-Union Friedrichshafen Gmbh Transmission linkage
US4148290A (en) * 1976-07-01 1979-04-10 Robert Bosch Gmbh Centrifugal regulator system for fuel injection combustion engines
US4164925A (en) * 1976-12-11 1979-08-21 Robert Bosch Gmbh Centrifugal rpm governor for internal combustion engines
US4286558A (en) * 1979-01-04 1981-09-01 Robert Bosch Gmbh Centrifugal rpm governor for fuel injected internal combustion engines, especially an idling and final rpm governor for diesel vehicle engines
US4497295A (en) * 1982-12-18 1985-02-05 Robert Bosch Gmbh Minimum-maximum speed governor for fuel-injected engines
US5307775A (en) * 1991-06-19 1994-05-03 Robert Bosch Gmbh Speed governor for internal combustion engines
US5325831A (en) * 1992-07-31 1994-07-05 Nippondenso Co., Ltd. Centrifugal governor for fuel injection pump
CN105443252A (zh) * 2015-12-18 2016-03-30 陕西航天动力高科技股份有限公司 一种无级自由调速柴油发动机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1459412A (en) * 1973-03-06 1976-12-22 Cav Ltd Liquid fuel injection pumping apparatus
DE3625985A1 (de) * 1985-08-16 1987-02-26 Bosch Gmbh Robert Fliehkraftdrehzahlregler von kraftstoffeinspritzpumpen

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2539738A (en) * 1948-10-20 1951-01-30 Caterpillar Tractor Co Engine governor
US2619080A (en) * 1950-11-06 1952-11-25 Bosch Gmbh Robert Fuel injection system for compression ignition engines
DE900507C (de) * 1950-11-07 1953-12-28 Bosch Gmbh Robert Kraftstoffeinspritzanlage fuer Brennkraftmaschinen
US2708921A (en) * 1950-03-21 1955-05-24 Daimler Benz Ag Control device for combustion engines
US2767700A (en) * 1955-04-26 1956-10-23 Caterpillar Tractor Co Fuel control for supercharged engines
GB788497A (en) * 1956-03-29 1958-01-02 Bosch Gmbh Robert Improvements in or relating to speed governors for fuel injection internal combustion engines
DE1080814B (de) * 1956-07-03 1960-04-28 Bosch Gmbh Robert Fliehkraftdrehzahlregler fuer Einspritzbrennkraftmaschinen
US2986291A (en) * 1957-07-09 1961-05-30 Allis Chalmers Mfg Co Fuel injection system
US3185141A (en) * 1963-01-29 1965-05-25 Simms Motor Units Ltd Variable rate spring devices
US3495535A (en) * 1967-08-22 1970-02-17 Simms Motor Units Ltd Fuel injection apparatus for motor vehicles

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2539738A (en) * 1948-10-20 1951-01-30 Caterpillar Tractor Co Engine governor
US2708921A (en) * 1950-03-21 1955-05-24 Daimler Benz Ag Control device for combustion engines
US2619080A (en) * 1950-11-06 1952-11-25 Bosch Gmbh Robert Fuel injection system for compression ignition engines
DE900507C (de) * 1950-11-07 1953-12-28 Bosch Gmbh Robert Kraftstoffeinspritzanlage fuer Brennkraftmaschinen
US2767700A (en) * 1955-04-26 1956-10-23 Caterpillar Tractor Co Fuel control for supercharged engines
GB788497A (en) * 1956-03-29 1958-01-02 Bosch Gmbh Robert Improvements in or relating to speed governors for fuel injection internal combustion engines
DE1080814B (de) * 1956-07-03 1960-04-28 Bosch Gmbh Robert Fliehkraftdrehzahlregler fuer Einspritzbrennkraftmaschinen
US2986291A (en) * 1957-07-09 1961-05-30 Allis Chalmers Mfg Co Fuel injection system
US3185141A (en) * 1963-01-29 1965-05-25 Simms Motor Units Ltd Variable rate spring devices
US3495535A (en) * 1967-08-22 1970-02-17 Simms Motor Units Ltd Fuel injection apparatus for motor vehicles

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3759236A (en) * 1970-10-03 1973-09-18 Bosch Gmbh Robert Centrifugal governor for regulating the rpm of internal combustion engines
US3791362A (en) * 1971-12-23 1974-02-12 Komatsu Mfg Co Ltd Governor for controlling the fuel delivery of a fuel injection pump for an internal combustion engine
US3797470A (en) * 1972-02-10 1974-03-19 Teledyne Ind Fuel regulating system for an internal combustion engine
US3841111A (en) * 1972-03-21 1974-10-15 Bosch Gmbh Robert Elastic rotary coupling for a centrifugal governor of an rpm regulator associated with an internal combustion engine
US3830211A (en) * 1972-05-20 1974-08-20 Bosch Gmbh Robert Centrifugal governor for controlling the rpm of injection type internal combustion engines
US3926164A (en) * 1972-06-06 1975-12-16 Sigma Regulating devices for the flow of fuel for internal combustion engines
US3884206A (en) * 1973-02-20 1975-05-20 Bosch Gmbh Robert Centrifugal rpm regulator for internal combustion engines
US3973542A (en) * 1973-03-06 1976-08-10 C.A.V. Limited Liquid fuel injection pumping apparatus
US3923025A (en) * 1973-04-20 1975-12-02 Diesel Kiki Co Fuel injection pump governor assembly for an internal combustion engine
US3973541A (en) * 1973-05-30 1976-08-10 Kabushiki Kaisha Komatsu Seisakusho Governor for use in fuel injection pump
US3923026A (en) * 1973-06-01 1975-12-02 Diesel Kiki Co Diesel engine fuel injection pump governor
US3938488A (en) * 1973-06-01 1976-02-17 Diesel Kiki Co., Ltd. Diesel engine fuel injection pump governor
US3903860A (en) * 1973-07-07 1975-09-09 Bosch Gmbh Robert Centrifugal rpm governor for fuel injected internal combustion engines
US3970064A (en) * 1974-01-23 1976-07-20 Robert Bosch G.M.B.H. RPM regulator for fuel injection pumps
US4109629A (en) * 1974-04-01 1978-08-29 C.A.V. Limited Fuel injection pumping apparatus
US4038958A (en) * 1974-04-23 1977-08-02 Diesel Kiki Co. Fuel injection pump governor
US4054112A (en) * 1974-08-01 1977-10-18 Diesel Kiki Co., Ltd. Fuel injection governor
US3911885A (en) * 1974-10-31 1975-10-14 Caterpillar Tractor Co Torque rise limiting governor
US4100890A (en) * 1975-06-13 1978-07-18 Diesel Kiki Co., Ltd. Mechanical governor for internal combustion engine
US4121555A (en) * 1975-06-14 1978-10-24 Motoren-Und Turbinen-Union Friedrichshafen Gmbh Transmission linkage
US4148290A (en) * 1976-07-01 1979-04-10 Robert Bosch Gmbh Centrifugal regulator system for fuel injection combustion engines
US4164925A (en) * 1976-12-11 1979-08-21 Robert Bosch Gmbh Centrifugal rpm governor for internal combustion engines
US4286558A (en) * 1979-01-04 1981-09-01 Robert Bosch Gmbh Centrifugal rpm governor for fuel injected internal combustion engines, especially an idling and final rpm governor for diesel vehicle engines
US4497295A (en) * 1982-12-18 1985-02-05 Robert Bosch Gmbh Minimum-maximum speed governor for fuel-injected engines
US5307775A (en) * 1991-06-19 1994-05-03 Robert Bosch Gmbh Speed governor for internal combustion engines
US5325831A (en) * 1992-07-31 1994-07-05 Nippondenso Co., Ltd. Centrifugal governor for fuel injection pump
CN105443252A (zh) * 2015-12-18 2016-03-30 陕西航天动力高科技股份有限公司 一种无级自由调速柴油发动机

Also Published As

Publication number Publication date
DE1803564B2 (de) 1976-12-16
AT298880B (de) 1972-05-25
GB1287631A (en) 1972-09-06
PL69752B1 (enrdf_load_stackoverflow) 1973-08-31
SU382310A3 (enrdf_load_stackoverflow) 1973-05-22
DE1803564A1 (de) 1970-08-06
FR2020893A1 (enrdf_load_stackoverflow) 1970-07-17

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