GB872739A - Improvements in and relating to free piston internal combustion engines - Google Patents

Improvements in and relating to free piston internal combustion engines

Info

Publication number
GB872739A
GB872739A GB3008757A GB3008757A GB872739A GB 872739 A GB872739 A GB 872739A GB 3008757 A GB3008757 A GB 3008757A GB 3008757 A GB3008757 A GB 3008757A GB 872739 A GB872739 A GB 872739A
Authority
GB
United Kingdom
Prior art keywords
cylinder
piston
combustion
free
products
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
GB3008757A
Inventor
Harry Fothergill
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.)
Richardsons Westgarth and Co Ltd
Original Assignee
Richardsons Westgarth and Co Ltd
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 Richardsons Westgarth and Co Ltd filed Critical Richardsons Westgarth and Co Ltd
Priority to GB3008757A priority Critical patent/GB872739A/en
Publication of GB872739A publication Critical patent/GB872739A/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
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

872,739. Free-piston engines. RICHARDSONS, WESTGARTH & CO. Ltd. Sept. 23, 1958 [Sept. 25, 1957], No. 30087/57. Class 7(1). In a free-piston engine comprising a cylinder 10 having a combustion space at or near each end and a free piston 16 arranged to be driven back and forth by the products of combustion, the cylinder has one or more inlets 18 connected to the delivery side of a blower or compressor 38 which is arranged to be driven by means other than the free piston and one or more outlets 28, 30 connected to a gas turbine 34 so that the turbine receives and is driven by products of combustion discharged under pressure from the cylinder, the cylinder also having one or more further outlets 20 which are so arranged as to be uncovered by the piston at or near the end of its stroke for the purpose of discharging from the cylinder the remaining products of combustion. Separate inlet and exhaust ports may be provided for each combustion chamber. As shown, the piston has extensions 32 with ports 60, 61 therein. In a modification the piston extensions are dispensed with. The gas may be released from the cylinder by a valve or valves which are loaded so as to open at a pressure exceeding that in the cylinder before combustion takes place. In another modification, a pair of pistons are rigidly joined together by a connecting rod having a cam which operates a pair of fuel pumps. The fuel control mechanism may be operated by the compression pressure in the combustion chamber. Two or more free-piston engine units may be contained in the same cylinder block. Specification 864,526 is referred to.
GB3008757A 1957-09-25 1957-09-25 Improvements in and relating to free piston internal combustion engines Expired GB872739A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3008757A GB872739A (en) 1957-09-25 1957-09-25 Improvements in and relating to free piston internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3008757A GB872739A (en) 1957-09-25 1957-09-25 Improvements in and relating to free piston internal combustion engines

Publications (1)

Publication Number Publication Date
GB872739A true GB872739A (en) 1961-07-12

Family

ID=10302049

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3008757A Expired GB872739A (en) 1957-09-25 1957-09-25 Improvements in and relating to free piston internal combustion engines

Country Status (1)

Country Link
GB (1) GB872739A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004046521A3 (en) * 2002-11-20 2004-08-12 Fev Motorentech Gmbh Two-stroke internal combustion engine with free opposed pistons

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004046521A3 (en) * 2002-11-20 2004-08-12 Fev Motorentech Gmbh Two-stroke internal combustion engine with free opposed pistons
US7047916B2 (en) 2002-11-20 2006-05-23 Fev Motorentechnik Gmbh Two-stroke internal combustion engine with free opposed pistons

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