US3530845A - Centrifugal governor for controlling the r.p.m. of diesel engines - Google Patents

Centrifugal governor for controlling the r.p.m. of diesel engines Download PDF

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Publication number
US3530845A
US3530845A US773619A US3530845DA US3530845A US 3530845 A US3530845 A US 3530845A US 773619 A US773619 A US 773619A US 3530845D A US3530845D A US 3530845DA US 3530845 A US3530845 A US 3530845A
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US
United States
Prior art keywords
lever
spring
governor
centrifugal
contour plate
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
US773619A
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English (en)
Inventor
Heinrich Staudt
Rolf Muller
Eberhard Hofmann
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Robert Bosch GmbH
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Robert Bosch GmbH
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
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Publication of US3530845A publication Critical patent/US3530845A/en
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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2700/00—Mechanical control of speed or power of a single cylinder piston engine
    • F02D2700/02—Controlling by changing the air or fuel supply
    • F02D2700/0269—Controlling by changing the air or fuel supply for air compressing engines with compression ignition
    • F02D2700/0282—Control of fuel supply
    • F02D2700/0284—Control of fuel supply by acting on the fuel pump control element
    • F02D2700/0292—Control of fuel supply by acting on the fuel pump control element depending on the speed of a centrifugal governor

Definitions

  • Greigg ABSTRACT In a diesel engine, a centrifugal governor is connected (1 by a first linkage means to the control rod ofa fuel injection pump to cause displacement of said rod thereby varying the fuel delivery and (2) by a second linkage means to an adjustable abutment which limits said displacement and 7 Claims 1 Drawing thus limits the maximum fuel delivery under various operating [52] U.S.Cl... 123/140 conditions.
  • the position of said adjustable abutment is inde- [51] Int.Cl F02d 1/04 pendentofthe position ofsaid firstlinkage means.
  • the invention relates to a centrifugal governor for controlling the r.p.m. of diesel engines by means of a connecting linkage which, on the one hand, is in engagement with the regulator member displaced by the governor weights as a function of the rpm. and, on the other hand, is connected with the fuel delivery control rod of the injection pump.
  • the displacement of the fuel delivery control rod is, in the direction of increasing fuel quantities, limited by an adjustable stop determining a maximum fuel delivery.
  • An accumulator (a spring-type storage device) is loaded as soon and as long as the said connecting linkage tends to displace the said fuel delivery control rod beyond said stop or abutment.
  • the adjustable stop is coupled with said connecting linkage and is therefore affected by the position thereof. Stated in other terms, the adjustable stop is shifted with respect to a cooperating abutment plate fixedly secured to the housing and provided with various abutment faces every time the connecting linkage moves.
  • the position of the adjustable stop is thus dependent exclusively on the position of the centrifugal weights.
  • the roller bearing 5 transmits the displacing forces of the centrifugal weights 3 to a transfer element or adaptor sleeve 6 also slidably mounted on the stub shaft la.
  • the adaptor sleeve 6 receives in a coaxial annular cavity an adaptor spring 7 transmitting the adjusting forces from the adaptor sleeve 6 to the regulator member 8, as will be described in greater detail later.
  • the spring seat base 11 is axially displaceahly held in a socket 12 which threadedly engages a base plate 13 forming part of a housing 13a shown only in broken lines.
  • a control spring 14 which engages, on the one hand, the spring seat base 11 and,
  • a spring seat disc 15 threadedly held in the socket 12. Through the spring seat disc 15 there passes an axial adjusting screw 16 which, in turn, serves as a seat for an idling spring 17. At its other end, the spring 17 engages the terminal face of pin 10.
  • a shift lever 19 As a connecting linkage between the regulator member 8 and a fuel delivery control rod 18 of the fuel injection pump, there is provided a shift lever 19, a regulator lever 20, and a guide rod 21, which latter carries a spring-type accumulator generally indicated at 30.
  • the shift lever 19 has a pin 22 by which it is held in a forked extension 23a of a radial bolt 23 extending through and secured to the regulator member 8.
  • the shift lever 19 is pivotally secured to a bearing pin 24 fixedly held in housing 13a and is articulatedly connected to one end of regulator lever 20.
  • a pin 25 secured to an adjusting link 26 extends into a guiding slot 20a of the regulator lever 20.
  • the adjusting link 26 is, in a bell-crank manner, connected through a shaft 27 secured to housing 13a with an externally operable adjusting lever 28 disposed outside of the housing 13a,
  • the guide rod 21 which is pivotally connected to the regualtor lever 20 transmits the adjusting movements of the latter through a spring-type accumulator 30 to an arm 29 rigidly affixed to the control rod 18. If the control rod 18 abuts against a stop during its displacement in either direction and if, thereupon, the guide rod 20 continues its adjusting motion in the same direction, the spring 31 of the accumulator 30 is compressed from one or the other direction.
  • a contour plate 34 For stopping the control rod 18 in the direction of full load, there is provided a contour plate 34, the curved edge of which is adapted to be engaged by a finger 29a secured to and protruding from the arm 29. Said edge, as will be seen later, is formed of two consecutive curve-portions: one is associated with additional fuel delivery for starting while the other is an adaptor-curve assisting in the control of fuel subsequent to the starting phase of the engine.
  • the contour plate 34 is provided with a guiding slot 34a into which extends a cam 35 mounted on an eccentric 36 which, in turn, is affixed to the end face of a shaft 37 rotatably held in housing 13a. When shaft 37 is turned, the position of eccentric 36 changes.
  • the contour plate 34 is slidable with respect to cam 35 and substantially parallel to arm 29.
  • two levers 38 and 39 both pivotally attached to a common pin 40 fixedly secured to the housing 13a.
  • the lever 38 pivotally engages with a forked end 38a a pin 6b affixed to a lug 6a which, in turn, is secured to the adaptor sleeve 6.
  • the lever 38 transmits the adjusting motion of the adaptor sleeve 6 to lever 39 through the interposed drag spring 41 which, on the one hand, engages an angularly offstanding extension 38b of the lever 38 and, on the other hand, contacts a spring seat 39a affixed to lever 39.
  • the spring seat 39a has a curved extension 39b which is adapted to engage the lever 38 and thus limits the pivotal motion of the lever 39 with respect to pin 40.
  • the lever 39 is held in a forked terminus 42a of a connecting bolt 42 which, in turn, is slidably held in two aligned openings provided, respectively, in spaced flanges 34b and 340 extending normal to the contour plate 34.
  • the connecting bolt 42 is adjustable with respect to the contour plate 34, in a direction parallel to the length dimension of guiding slot 34a, by means of a nut 43 threadedly engaging the connecting bolt 42 and lying against the upper face of flange 34b of the contour plate 34. Between the spring seat 44 secured to the shaft of the connecting bolt 42 and the lower face of flange 3417 there is compressed a coil spring 45 surrounding the connecting bolt 42.
  • a purpose of providing levers 38 and 39 in the linkage that couples the adaptor sleeve 6 with the contour plate 34 is to obtain, at terminus 42a, a displacement that is larger than that of adaptor sleeve 6.
  • the driver moves the externally operable adjusting lever 28, and thus, the adjusting link 26, the control lever 20, the guide rod 21, the arm 29 and control rod 18 are displaced from the inoperative position shown in the figure into the full load position, whereby finger 29a is brought into contact with curve-portion 34' which determines the upper limit of the fuel delivery for start.
  • the adaptor sleeve 6 and the regulator member 8 are displaced directly by the adaptor spring 7 without compression thereof. Due to the said displacement of regulator member 8, the idling spring 17 is continuously and increasingly compressed by the pin 10 until the regulator member 8 abuts against the outer terminal face of spring seat base 11. As the adaptor sleeve 6 moves to the right, it causes lever 38 to rotate counterclockwise and, through spring 41, to push down on lever 39. As a result, the contour plate 34 is pulled downwardly through a determined distance and the curved edge of the contour plate 34 displaces follower nose 29a, arm 29 and control rod 18 to the right. Thus, the additional fuel delivery required for starting is shutoff.
  • the adaptor spring 7 is, due to the increasing forces of the centrifugal weights 3, continously and increasingly compressed until the adaptor sleeve 6 abuts against the regulator member 8. ln this rpm. range, in which only the adaptor sleeve 6 is displaced, the contour plate 34 is further pulled down until the upper terminal edge of guiding slot 340 eventually abuts against the cam 35.
  • the finger 39a engages the upper curve-portion 34" which limits the full load fuel delivery, for each r.p.m. another maximal fuel delivery may be set. Since in full load condition the guide rod 21 is held immobile by the driver, the length of spring 31 of the accumulator 30 changes by virtue of the motion of arm 29 caused by the contour plate 34.
  • contour plate 34 By suitably selecting the length ratio of levers 38 and 39, a displacement of contour plate 34 may be obtained which is large with respect to the relatively short shift the adaptor sleeve 6 executes in relation to regulator member 8. Consequently, the extent of travel of finger 29a with respect to and on the curved edge portion of contour plate 34 will be relatively large.
  • the r.p.m. control device described hereinabove not only ensures by simple means the required additional fuel delivery for good starting conditions, but also provides for a relatively easily adjustable adaptation of the fuel quantities to be injected in the full load range.
  • the control path for full load conditions may be set, while by adjusting the nut 43 the shut-off point of the addtional fuel delivery for starting conditions and the beginning of the adaptation of the fuel quantities for full load conditions may be regulated.
  • the shaft 37 may be actuated by control mechanisms which are arranged externally of the centrifugal governor and may operate dependent upon atmospheric and temperature conditions.
  • a centrifugal governor for controlling the rpm. of diesel engines, said governor including weights displaced as a function of the rpm. and o eratively connected through a governor member to a contro rod ofa fuel in ection pump for regulating the delivery thereof by displacing said rod along a path, coupling means connecting said weights with an adjustable abutment determining the maximum fuel delivery of said injection pump by limiting said path, the improvement in said coupling means comprising:
  • said transfer element is an adaptor sleeve slidably mounted on a drive shaft stub and displaceable thereon along a path coinciding with the path of displacement of said governor member.
  • first and a second lever both pivotable about a fixed common joint, said first lever is, at one end, pivotally secured to said transfer element and engages with its other, angularly bent end said second lever through a drag spring for transmitting the motion of said transfer element from said first lever to said second lever, said second lever is, at its end spaced from said common joint, coupled to said adjustable abutment.
  • said adjustable abutment is formed of a contour plate having a curved edge adapted to be engaged by a follower secured to said control rod, said contour plate is provided with a guide slot slidably engaged by a cam.

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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)
US773619A 1967-11-14 1968-11-05 Centrifugal governor for controlling the r.p.m. of diesel engines Expired - Lifetime US3530845A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1576291 1967-11-14

Publications (1)

Publication Number Publication Date
US3530845A true US3530845A (en) 1970-09-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
US773619A Expired - Lifetime US3530845A (en) 1967-11-14 1968-11-05 Centrifugal governor for controlling the r.p.m. of diesel engines

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US (1) US3530845A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5022167B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) AT288088B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BG (1) BG16353A3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES360231A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1585720A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1245145A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659570A (en) * 1970-08-03 1972-05-02 Diesel Kiki Co Centrifugal governor for injection internal combustion engines
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
US3903860A (en) * 1973-07-07 1975-09-09 Bosch Gmbh Robert Centrifugal rpm governor for fuel injected internal combustion engines
US4015573A (en) * 1973-03-05 1977-04-05 Diesel Kiki Co., Ltd. Supercharged diesel engine fuel injection pump governor assembly
US4038958A (en) * 1974-04-23 1977-08-02 Diesel Kiki Co. Fuel injection pump governor
US4067303A (en) * 1974-12-19 1978-01-10 Diesel Kiki Co., Ltd. Fuel injection pump governor
US4109627A (en) * 1975-11-05 1978-08-29 Diesel Kiki Co., Ltd. Two-speed fuel injection pump governor
US4164924A (en) * 1976-12-16 1979-08-21 Nippondenso Co., Ltd. Centrifugal speed governor for an internal combustion engine
US4175529A (en) * 1976-07-13 1979-11-27 Motoren- und Turbinen-Union Friedrichafen GmbH Regulating device
US4235212A (en) * 1978-12-18 1980-11-25 General Motors Corporation Cam actuated fuel modulating engine governor
DE2947631A1 (de) * 1979-11-27 1981-07-23 Klöckner-Humboldt-Deutz AG, 5000 Köln Kraftstoffeinspritzpumpe
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
US4453520A (en) * 1980-07-03 1984-06-12 Lucas Industries Limited Liquid fuel pumping apparatus
US4586470A (en) * 1984-04-19 1986-05-06 Robert Bosch Gmbh Centrifugal speed governor for fuel-injected internal combustion engines
US4621601A (en) * 1984-05-16 1986-11-11 Robert Bosch Gmbh Fuel injection pump in internal combustion engines
US4782804A (en) * 1985-12-06 1988-11-08 Robert Bosch Gmbh Centrifugal speed governor for internal combustion engines
EP0425801A1 (de) * 1989-10-31 1991-05-08 Robert Bosch Gmbh Fliehkraftdrehzahlregler für Einspritzbrennkraftmaschinen
CN104047746A (zh) * 2013-03-15 2014-09-17 江苏普盛动力股份有限公司 一种柴油机怠速机构

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2308260C2 (de) * 1973-02-20 1983-11-24 Robert Bosch Gmbh, 7000 Stuttgart Fliehkraftdrehzahlregler für Einspritzbrennkraftmaschinen
AT374890B (de) * 1979-05-04 1984-06-12 List Hans Drehzahlregler fuer dieselmotoren
DE3133898A1 (de) * 1981-08-27 1983-03-10 Spica S.p.A., Livorno "fliehkraftdrehzahlregler fuer kraftstoffeinspritzpumpen
AT385562B (de) * 1982-01-08 1988-04-25 Friedmann & Maier Ag Regler fuer die foerdermengenverstellung von einspritzpumpen einer einspritzbrennkraftmaschine

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659570A (en) * 1970-08-03 1972-05-02 Diesel Kiki Co Centrifugal governor for injection internal combustion engines
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
US4015573A (en) * 1973-03-05 1977-04-05 Diesel Kiki Co., Ltd. Supercharged diesel engine fuel injection pump governor assembly
US3903860A (en) * 1973-07-07 1975-09-09 Bosch Gmbh Robert Centrifugal rpm governor for fuel injected internal combustion engines
US4038958A (en) * 1974-04-23 1977-08-02 Diesel Kiki Co. Fuel injection pump governor
US4067303A (en) * 1974-12-19 1978-01-10 Diesel Kiki Co., Ltd. Fuel injection pump governor
US4109627A (en) * 1975-11-05 1978-08-29 Diesel Kiki Co., Ltd. Two-speed fuel injection pump governor
US4175529A (en) * 1976-07-13 1979-11-27 Motoren- und Turbinen-Union Friedrichafen GmbH Regulating device
US4164924A (en) * 1976-12-16 1979-08-21 Nippondenso Co., Ltd. Centrifugal speed governor for an internal combustion engine
US4235212A (en) * 1978-12-18 1980-11-25 General Motors Corporation Cam actuated fuel modulating engine governor
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
DE2947631A1 (de) * 1979-11-27 1981-07-23 Klöckner-Humboldt-Deutz AG, 5000 Köln Kraftstoffeinspritzpumpe
US4453520A (en) * 1980-07-03 1984-06-12 Lucas Industries Limited Liquid fuel pumping apparatus
US4586470A (en) * 1984-04-19 1986-05-06 Robert Bosch Gmbh Centrifugal speed governor for fuel-injected internal combustion engines
US4621601A (en) * 1984-05-16 1986-11-11 Robert Bosch Gmbh Fuel injection pump in internal combustion engines
US4782804A (en) * 1985-12-06 1988-11-08 Robert Bosch Gmbh Centrifugal speed governor for internal combustion engines
EP0425801A1 (de) * 1989-10-31 1991-05-08 Robert Bosch Gmbh Fliehkraftdrehzahlregler für Einspritzbrennkraftmaschinen
CN104047746A (zh) * 2013-03-15 2014-09-17 江苏普盛动力股份有限公司 一种柴油机怠速机构
CN104047746B (zh) * 2013-03-15 2017-05-03 江苏普盛动力股份有限公司 一种柴油机怠速机构

Also Published As

Publication number Publication date
AT288088B (de) 1971-02-25
BG16353A3 (bg) 1972-08-20
JPS5022167B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-07-29
GB1245145A (en) 1971-09-08
ES360231A1 (es) 1970-07-01
FR1585720A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1970-01-30

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