GB753924A - Improvements in internal-combustion-operated free-piston machines including a pneumatic return-energy accumulator - Google Patents

Improvements in internal-combustion-operated free-piston machines including a pneumatic return-energy accumulator

Info

Publication number
GB753924A
GB753924A GB14883/54A GB1488354A GB753924A GB 753924 A GB753924 A GB 753924A GB 14883/54 A GB14883/54 A GB 14883/54A GB 1488354 A GB1488354 A GB 1488354A GB 753924 A GB753924 A GB 753924A
Authority
GB
United Kingdom
Prior art keywords
piston
aperture
free
generator
reciprocating movement
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
GB14883/54A
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.)
Societe dEtudes et de Participations Eau Gaz Electricite Energie SA
Original Assignee
Societe dEtudes et de Participations Eau Gaz Electricite Energie 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 Societe dEtudes et de Participations Eau Gaz Electricite Energie SA filed Critical Societe dEtudes et de Participations Eau Gaz Electricite Energie SA
Publication of GB753924A publication Critical patent/GB753924A/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
    • 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
    • F02B71/06—Free-piston combustion gas generators per se
    • 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
    • F01B11/02—Equalising or cushioning devices
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

753,924. Free-piston engines and gas generators. SOC. D'ETUDES ET DE PARTICIPATIONS EAU, GAZ, ELECTRICITE, ENERGIE SOC. ANON. May 20,1954 [June 11, 1953], No. 14883/54. Classes 7(1) and 7(2) An internal combustion operated free piston machine comprises a free-piston assembly including a power piston and a compressor piston rigidly coupled together and slidable in a 'power and a compressor cylinder respectively and a pneumatic accumulator arranged to provide an air cushion which is compressed during the outward strokes of the piston assembly and which restores the energy thus accumulated to the piston assembly during the inward strokes thereof and the pneumatic accumulator is provided with a discharge aperture and means responsive to the reciprocating movement of the piston assembly to maintain the aperture closed during the reciprocating movement and to open the aperture when the reciprocating movement ceases and the means are responsive to variations in the pressure of the air cushion and are adapted to maintain the aperture closed while such pressure variations take place and to open the aperture when the pressure variations cease. The Figs. show a wholly-free-piston gas generator supplying power gas to a turbine or other machine. The pneumatic accumulator chamber 4b comprises a discharge aperture 10 controlled by a piston. While the generator is running the aperture is closed but is opened by the spring 16 when the generator stops. This obviates the pistons moving inwardly and jamming in the case of an accidental stoppage of the generator. An aperture 15 may be provided in the wall of the cylinder instead of in the piston as shown. It is known to discharge the accumulator by means of a valve by operating a stopping member provided for this purpose and which for instance stops the injection of fuel. Semifree piston engines in which only are dead point and generally the inner one is free from mechanical control are referred'to.
GB14883/54A 1953-06-11 1954-05-20 Improvements in internal-combustion-operated free-piston machines including a pneumatic return-energy accumulator Expired GB753924A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR753924X 1953-06-11

Publications (1)

Publication Number Publication Date
GB753924A true GB753924A (en) 1956-08-01

Family

ID=9164007

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14883/54A Expired GB753924A (en) 1953-06-11 1954-05-20 Improvements in internal-combustion-operated free-piston machines including a pneumatic return-energy accumulator

Country Status (1)

Country Link
GB (1) GB753924A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0676610A1 (en) * 1994-04-09 1995-10-11 Loral Europe Limited A free piston machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0676610A1 (en) * 1994-04-09 1995-10-11 Loral Europe Limited A free piston machine
US5646363A (en) * 1994-04-09 1997-07-08 Loral Europe Limited Free piston machine

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