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ES339938A1 - Liquid fuel injection devices for free piston internal combustion engines - Google Patents

Liquid fuel injection devices for free piston internal combustion engines

Info

Publication number
ES339938A1
ES339938A1 ES339938A ES339938A ES339938A1 ES 339938 A1 ES339938 A1 ES 339938A1 ES 339938 A ES339938 A ES 339938A ES 339938 A ES339938 A ES 339938A ES 339938 A1 ES339938 A1 ES 339938A1
Authority
ES
Spain
Prior art keywords
piston
fuel
stroke
pressure
chamber
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
ES339938A
Other languages
Spanish (es)
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.)
Automobiles Citroen SA
Original Assignee
Andre Citroen SA
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
Application filed by Andre Citroen SA filed Critical Andre Citroen SA
Publication of ES339938A1 publication Critical patent/ES339938A1/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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/32—Varying fuel delivery in quantity or timing fuel delivery being controlled by means of fuel-displaced auxiliary pistons, which effect injection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B11/00—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type
    • F01B11/08—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type with direct fluid transmission link
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B71/00—Free-piston engines; Engines without rotary main shaft
    • F02B71/04—Adaptations of such engines for special use; Combinations of such engines with apparatus driven thereby
    • F02B71/045—Adaptations of such engines for special use; Combinations of such engines with apparatus driven thereby with hydrostatic transmission
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M49/00—Fuel-injection apparatus in which injection pumps are driven or injectors are actuated, by the pressure in engine working cylinders, or by impact of engine working piston
    • F02M49/04—Fuel-injection apparatus in which injection pumps are driven or injectors are actuated, by the pressure in engine working cylinders, or by impact of engine working piston using the piston impact
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2700/00—Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
    • F02M2700/07—Nozzles and injectors with controllable fuel supply
    • F02M2700/078—Injectors combined with fuel injection pump

Landscapes

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

Abstract

A free piston I. C, engine in which the piston 7 is connected to hydraulic pump pistons 2, is fed with fuel from an injection pump which is hydraulically actuated towards the end of the compression stroke of the piston 7 by an extension 22 on the piston 2 entering a bore 21 displacing liquid which acts through passages 33, 34 and chamber 24 on a piston 23 having an extension 23b acting as a fuel injection pump to discharge fuel drawn in through inlet valve 27 to a passage in the member 16 housing an injection valve 20 loaded by a spring 40 and discharging into a combustion chamber 17 formed in the piston 7. Injection stops when piston 23a uncovers port 35. The return stroke of the piston 23 is ensured by incoming fuel pressure and spring 36 and is limited by an abutment 39 which is actuated through levers by a corresponding piston rod 50 on the opposite side of the engine as shown in Fig. 3. The piston 46 operates in a cylinder 47 connected by passage 48 to a chamber 45 which the piston 2 enters at the end of its stroke so that the piston 46 is moved inwardly thereby reducing the quantity of fuel injected. The passage surrounding the valve stem 19 is kept under pressure by reducing the diameter of the portion 37 of the piston 23 so that pressure in the cylinder 1 acts to bias the piston 23 in the direction of the pressure stroke. The hydraulic pump comprises inlet and outlet valves (3, 4 Fig. 1 not shown) each having an associated damping chamber (C). Each cylinder 1 has an accumulator (E).
ES339938A 1966-05-09 1967-04-28 Liquid fuel injection devices for free piston internal combustion engines Expired ES339938A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR60769A FR1492914A (en) 1966-05-09 1966-05-09 Improvements to liquid fuel injection devices for free-piston engines

Publications (1)

Publication Number Publication Date
ES339938A1 true ES339938A1 (en) 1968-06-16

Family

ID=8608128

Family Applications (1)

Application Number Title Priority Date Filing Date
ES339938A Expired ES339938A1 (en) 1966-05-09 1967-04-28 Liquid fuel injection devices for free piston internal combustion engines

Country Status (8)

Country Link
US (1) US3363609A (en)
BE (1) BE698165A (en)
DE (1) DE1576189A1 (en)
ES (1) ES339938A1 (en)
FR (1) FR1492914A (en)
GB (1) GB1150392A (en)
NL (1) NL6706479A (en)
SE (1) SE307474B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE791450A (en) * 1971-11-18 1973-03-16 Fitzgerald William M B POWER GENERATOR
US4031920A (en) * 1972-11-10 1977-06-28 Fitzgerald William Maurice Bar Pressurized hydraulic sump system
US3918851A (en) * 1972-11-10 1975-11-11 William Maurice Bar Fitzgerald High velocity shaft seal
DE3029287A1 (en) * 1980-08-01 1982-03-04 Frank Stelzer TWO-STROKE COMBUSTION ENGINE
DE3342183A1 (en) * 1983-11-23 1985-05-30 Breinlich, Richard, Dr., 7120 Bietigheim-Bissingen Units through which fluid flows, having pistons reciprocating in cylinders, such as pumps, motors, combustion engines and internal combustion engines

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2274693A (en) * 1938-08-16 1942-03-03 Bosch Gmbh Robert Governor apparatus for the fuel delivery of diesel and other injection internal combustion engines
US2537371A (en) * 1943-02-04 1951-01-09 Petersen Ove Fuel injection arrangements in internal-combustion engines
US3106896A (en) * 1959-08-03 1963-10-15 Lely Nv C Van Der Fluid pumps
US3110152A (en) * 1961-05-01 1963-11-12 Int Harvester Co Starting and operating control system for free piston engine hydraulic pump as a power plant of a hydrostatic driven vehicle
NL132112C (en) * 1964-11-25

Also Published As

Publication number Publication date
US3363609A (en) 1968-01-16
NL6706479A (en) 1967-11-10
SE307474B (en) 1969-01-07
GB1150392A (en) 1969-04-30
FR1492914A (en) 1967-08-25
DE1576189A1 (en) 1970-05-06
BE698165A (en) 1967-10-16

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