GB1132975A - Improvements in regulation devices for free piston internal combustion engines - Google Patents

Improvements in regulation devices for free piston internal combustion engines

Info

Publication number
GB1132975A
GB1132975A GB49655/65A GB4965565A GB1132975A GB 1132975 A GB1132975 A GB 1132975A GB 49655/65 A GB49655/65 A GB 49655/65A GB 4965565 A GB4965565 A GB 4965565A GB 1132975 A GB1132975 A GB 1132975A
Authority
GB
United Kingdom
Prior art keywords
piston
chamber
fuel
fluid
pressure
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
GB49655/65A
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
Automobiles 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 Automobiles Citroen SA filed Critical Automobiles Citroen SA
Publication of GB1132975A publication Critical patent/GB1132975A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B71/00Free-piston engines; Engines without rotary main shaft
    • F02B71/04Adaptations of such engines for special use; Combinations of such engines with apparatus driven thereby
    • F02B71/045Adaptations of such engines for special use; Combinations of such engines with apparatus driven thereby with hydrostatic transmission
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01BMACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B11/00Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type
    • F01B11/08Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type with direct fluid transmission link
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M49/00Fuel-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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Reciprocating Pumps (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

1,132,975. Hydraulic transmissions. SOC. ANON. ANDRE CITROEN. 23 Nov., 1965 [25 Nov., 1964], No. 49655/65. Heading F2D. [Also in Division F1] A free-piston I.C. engine has its piston 7 rigid with a pump plunger 2 forming part of an hydraulic transmission with a motor B. Each side of piston 7 is rigidly connected to tubular pistons 2 which reciprocate in cylinder 1. Two damping chambers C and D and a holding chamber E communicate with each cylinder 1. The hydraulic generator delivers pressurized fluid via delivery valves 4 and pipes 5 to motor B which returns fluid via pipes 6 and suction valve 3 to the hydraulic generator. On each piston stroke part of the fluid delivered by piston 2 is admitted into a chamber 41 which causes membrane 43 to expand to compress pressurized gas present in chamber 42 and also acts via passage 48, to move piston 49 thereby closing check valve 45. Delivery valve 4 then opens to permit delivery of the remaining part of the fluid. During the next suction stroke, the energy corresponding to the compression of gas in chamber 42 is restored to the plunger 2 and check valve 45 reopens. The power supplied to the motor B depends on the relative amounts of the two parts of the fluid delivery and therefore on the pressure of gas supplied from source M. The gas pressure is controlled by a pedal 50 which may control a distributing valve connecting a pressurized gas reservoir either with the delivery of a compressor or to atmosphere. In a modification pistons 53, Fig. 2, may be connected through a mechanism (not described) to control the pressure of the gas source M. Fuel regulation.-When pressure reduces in chamber 34 fuel from pipe 18 opens check valve 19 and pushes metering member 15 leftwards until washer 28a engages abutment 62a thus admitting fuel into space 17 proportionally to displacement l. At the end of movement of piston 7 to the right, pressure in chamber 34 is transmitted via passage 31 to head 15b. When the edge of sleeve 26 clears orifice 21 metering member 15 is driven to the right until orifice 21 is closed. A portion of the fuel volume is injected and is then driven by the air stream flowing through passages 31, 32 into chamber 33 where it is ignited. When orifice 22 is cleared the remaining fuel portion is injected and combustion in chamber 33 reverses the flow through passages 32 and 31 to cause an ignited fuel mixture to be injected into chamber 34. If the stroke of piston 2 exceeds a predetermined value the end of piston 2 enters hole 51 and fluid therein is directed via passage 56 and chamber 54 to act on piston 53. As piston 53 is moved leftwards the motion is transmitted via lever 66b, link 65b, lever 63b to move abutment 62b to the left, thus making the subsequent sliding displacement of the left hand metering member 15 smaller. This results in the next fuel injection on the left of piston 7 being smaller thereby reducing the length of the next rightwards movement of the piston. A similar adjustment occurs for the leftwards movement of the piston. If overpressure does not exist in hole 51, i.e. if the stroke is short, a check valve 59 is closed and fluid pressure is communicated via a small passage 60 to chamber 55. The differential pressures acting on piston 53 cause it to move to reduce the volume of chamber 54. This movement increases the length l at the opposite end of the engine thereby increasing the rate of fuel injection to increase the length of the subsequent stroke. In a modification piston 53, Fig. 3 (not shown), is biased by an external spring 61.
GB49655/65A 1964-11-25 1965-11-23 Improvements in regulation devices for free piston internal combustion engines Expired GB1132975A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR996313A FR1428516A (en) 1964-11-25 1964-11-25 Improvements made to regulating devices for free-piston engines

Publications (1)

Publication Number Publication Date
GB1132975A true GB1132975A (en) 1968-11-06

Family

ID=8843371

Family Applications (2)

Application Number Title Priority Date Filing Date
GB49654/65A Expired GB1123635A (en) 1964-11-25 1965-11-23 Improvements in regulating devices for free piston internal combustion engines
GB49655/65A Expired GB1132975A (en) 1964-11-25 1965-11-23 Improvements in regulation devices for free piston internal combustion engines

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB49654/65A Expired GB1123635A (en) 1964-11-25 1965-11-23 Improvements in regulating devices for free piston internal combustion engines

Country Status (9)

Country Link
US (1) US3329133A (en)
BE (1) BE672030A (en)
DE (2) DE1451681B1 (en)
ES (2) ES319959A1 (en)
FR (1) FR1428516A (en)
GB (2) GB1123635A (en)
LU (1) LU49926A1 (en)
NL (3) NL6515345A (en)
SE (2) SE327858B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2183726A (en) * 1985-11-19 1987-06-10 Andrew David Marsh Double-acting two stroke I.C. engine
GB2353562A (en) * 1999-08-23 2001-02-28 Andrew Mark Stringer I.c. engine with a rigid piston/connecting rod unit and two combustion chambers, also with thermal insulation and water spray into combustion chambers
CN113801360A (en) * 2021-11-18 2021-12-17 赛宁(苏州)生物科技有限公司 Surface treatment method for realizing low-adsorption plastic liquid-transfer suction head
CN115124096A (en) * 2022-06-29 2022-09-30 新疆兵团勘测设计院(集团)有限责任公司 Shipborne river and lake ecological restoration sprinkling system

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1492914A (en) * 1966-05-09 1967-08-25 Citroen Sa Andre Improvements to liquid fuel injection devices for free-piston engines
US3507578A (en) * 1967-10-09 1970-04-21 Dresser Ind Method and apparatus for indicating and controlling the torque on an internal combustion engine
US3486685A (en) * 1968-04-08 1969-12-30 Tenneco Inc Engine-compressor control system and method
US3658387A (en) * 1970-12-09 1972-04-25 John Roper Thermally activated power brake system and pump therefor
US3918851A (en) * 1972-11-10 1975-11-11 William Maurice Bar Fitzgerald High velocity shaft seal
US3995974A (en) * 1974-09-18 1976-12-07 Herron Allen R Internal combustion assisted hydraulic engine
US11346219B2 (en) 2014-04-24 2022-05-31 Aquarius Engines (A.M.) Ltd. Engine with work stroke and gas exchange through piston rod
US9366199B2 (en) * 2014-05-09 2016-06-14 Ali Farzad Farzaneh Sliding engine with shaft on one or both ends for double or single ended combustion

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3089305A (en) * 1958-08-21 1963-05-14 Hobbs Transmission Ltd Internal combustion engines and power transmission therefor
US3199456A (en) * 1960-07-12 1965-08-10 Joy Mfg Co Vehicle and control system therefor
US3065703A (en) * 1960-11-03 1962-11-27 Int Harvester Co Free piston engine pump
US3168045A (en) * 1961-09-13 1965-02-02 Sebastiani Martin Pump for thick materials
FR1350753A (en) * 1962-12-15 1964-01-31 Anciens Etablissements Panhard Improvements made to variable-rate hydraulic transmission installations, in particular for motor vehicles

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2183726A (en) * 1985-11-19 1987-06-10 Andrew David Marsh Double-acting two stroke I.C. engine
GB2353562A (en) * 1999-08-23 2001-02-28 Andrew Mark Stringer I.c. engine with a rigid piston/connecting rod unit and two combustion chambers, also with thermal insulation and water spray into combustion chambers
CN113801360A (en) * 2021-11-18 2021-12-17 赛宁(苏州)生物科技有限公司 Surface treatment method for realizing low-adsorption plastic liquid-transfer suction head
CN113801360B (en) * 2021-11-18 2022-03-04 赛宁(苏州)生物科技有限公司 Surface treatment method for realizing low-adsorption plastic liquid-transfer suction head
CN115124096A (en) * 2022-06-29 2022-09-30 新疆兵团勘测设计院(集团)有限责任公司 Shipborne river and lake ecological restoration sprinkling system

Also Published As

Publication number Publication date
SE327858B (en) 1970-08-31
NL132112C (en)
FR1428516A (en) 1966-02-18
DE1451681B1 (en) 1972-03-16
BE672030A (en) 1966-03-01
NL6515344A (en) 1966-05-26
ES319959A1 (en) 1966-04-16
NL6515345A (en) 1966-05-26
LU49926A1 (en) 1966-01-25
US3329133A (en) 1967-07-04
DE1451682A1 (en) 1969-09-25
ES319958A1 (en) 1966-04-16
SE316326B (en) 1969-10-20
GB1123635A (en) 1968-08-14

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