GB839796A - Improvements in or relating to devices for varying the fuel quantity to be injected and for adjusting the injection timing of injection internal combustion engines - Google Patents

Improvements in or relating to devices for varying the fuel quantity to be injected and for adjusting the injection timing of injection internal combustion engines

Info

Publication number
GB839796A
GB839796A GB1149758A GB1149758A GB839796A GB 839796 A GB839796 A GB 839796A GB 1149758 A GB1149758 A GB 1149758A GB 1149758 A GB1149758 A GB 1149758A GB 839796 A GB839796 A GB 839796A
Authority
GB
United Kingdom
Prior art keywords
valve
conduit
servo
pressure
spring
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
Application number
GB1149758A
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
Original Assignee
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 DE1956B0041486 external-priority patent/DE1072837B/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB839796A publication Critical patent/GB839796A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F02D1/12—Transmission of control impulse to pump control, e.g. with power drive or power assistance non-mechanical, e.g. hydraulic
    • 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
    • F02D1/16—Adjustment of injection timing
    • F02D1/18—Adjustment of injection timing with non-mechanical means for transmitting control impulse; with amplification of control impulse
    • F02D1/183—Adjustment of injection timing with non-mechanical means for transmitting control impulse; with amplification of control impulse hydraulic

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)

Abstract

839,796. Fluid-pressure servomotor control systems. BOSCH G.m.b.H., R. April 11, 1958 [April 13, 1957], No. 11497/58. Addition to 818,699. Class 135. The fuel injection quantity and timing in a fuel injection internal combustion engine are controlled by servo-pistons 68, 10, respectively, under the control of a centrifugal governor 8 which comprises balls 37 acting between a dished member 114 fixed axially on a shaft 111 and a chain-wheel 112, by which the governor is driven, axially movable on the shaft. The member 114 is loaded by an adjustable spring 42 so that the force applied by the shaft 111 to a valve member 96 is the difference between the spring force and the governor force. The governor force is also effective on a valve member 97 constituted by an extension of the chain-wheel 112. The valve members 96, 97, outlets from conduits 60, 7, respectively, fed by pumps 26, 2, thereby controlling the servopistons 68, 10 which are connected to the conduits 60, 7. The outlets from the valve members 96, 97 and the low-pressure sides of the servo-pistons 10, 68 are connected to the fuel tank 3 through a valve 103 which maintains the pressure slightly above atmospheric. Restrictions 77, 80 in the connections to the servo-piston 10 prevent displacement of the latter by sudden forces produced by rotary oscillations of the pump shaft 15. The servopiston 68 is also subject, in the lower part of the speed range of the engine, to control by a valve member 90 which controls a further outlet from the conduit 60 and is subject to the pressures in the conduits 7, 10 acting in opposition to a spring 92. To cause the injection pump 1 to give a high delivery for starting the engine a spring-loaded piston valve 83 is inserted in the conduit 60 between the servo-piston 68 and the valve member 96. This valve 83 is normally held by pressure in the conduit 7 in the position shown in which it does not interrupt the conduit 60 but when the engine is being started lack of pressure in the conduit 7 causes the valve 83 to interrupt the conduit 60 whereby the servo-piston 68, being subject to the full delivery pressure of the pump 26, overcomes a spring-loaded stop 70.
GB1149758A 1956-08-22 1958-04-11 Improvements in or relating to devices for varying the fuel quantity to be injected and for adjusting the injection timing of injection internal combustion engines Expired GB839796A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1956B0041486 DE1072837B (en) 1956-08-22 1956-08-22 DEVICE FOR ADJUSTING THE AMOUNT OF FUEL AND THE INJECTION TIME IN INJECTION MACHINES
DEB44293A DE1099265B (en) 1956-08-22 1957-04-13 Device for adjusting the amount of fuel and the time of injection in internal combustion engines

Publications (1)

Publication Number Publication Date
GB839796A true GB839796A (en) 1960-06-29

Family

ID=33453465

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1149758A Expired GB839796A (en) 1956-08-22 1958-04-11 Improvements in or relating to devices for varying the fuel quantity to be injected and for adjusting the injection timing of injection internal combustion engines

Country Status (3)

Country Link
AT (1) AT208133B (en)
DE (1) DE1099265B (en)
GB (1) GB839796A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT302726B (en) * 1969-04-22 1972-10-25 Bosch Gmbh Robert Control device for fuel injection pumps

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE526666C (en) * 1929-12-20 1931-06-09 Maschf Augsburg Nuernberg Ag Internal combustion engine with variable speed and injection timing adjustment
DE895995C (en) * 1940-01-20 1953-11-09 Friedrich Wilhelm Deckel Dipl Device for automatic adjustment of the start of injection on injection pumps for internal combustion engines
US2752145A (en) * 1951-05-10 1956-06-26 Bosch Arma Corp Hydraulic governor for fuel injection pump

Also Published As

Publication number Publication date
DE1099265B (en) 1961-02-09
AT208133B (en) 1960-03-25

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