IE35521L - Free piston engines - Google Patents

Free piston engines

Info

Publication number
IE35521L
IE35521L IE711036A IE103671A IE35521L IE 35521 L IE35521 L IE 35521L IE 711036 A IE711036 A IE 711036A IE 103671 A IE103671 A IE 103671A IE 35521 L IE35521 L IE 35521L
Authority
IE
Ireland
Prior art keywords
piston
power
movement
moment
velocity
Prior art date
Application number
IE711036A
Other versions
IE35521B1 (en
Original Assignee
Braun Anton
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 Braun Anton filed Critical Braun Anton
Publication of IE35521L publication Critical patent/IE35521L/en
Publication of IE35521B1 publication Critical patent/IE35521B1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
    • F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
    • F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure
    • 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
    • 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
    • F02B71/02—Starting
    • 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
    • F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
    • F02P5/15—Digital data processing
    • F02P5/1502—Digital data processing using one central computing unit
    • F02P5/1512—Digital data processing using one central computing unit with particular means concerning an individual cylinder
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S60/00—Power plants
    • Y10S60/91—Free piston

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

Apparatus and method features are disclosed for initiating combustion in free piston engines in response to a movement-related characteristic of the power piston, such as its rate of change of position in the power cylinder of the engine, so that combustion is caused to occur at a desired time which is related to the time the power piston reverses direction at the start of a power stroke, without regard to variations from one stroke to another in the actual physical position of the power piston along its path of movement in the power cylinder at the moment of piston reversal. Various means are shown or suggested for sensing piston movement and causing combustion in response to changes in the velocity or acceleration of such piston movement at a controlled time interval before or after such velocity drops to zero or after such velocity has reached a maximum, i.e., at or near the moment when the piston reaches its inner dead point in the power cylinder, and preferably somewhat before that moment. [US3643638A]
IE1036/71A 1970-08-24 1971-08-16 Free piston engine IE35521B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6638570A 1970-08-24 1970-08-24

Publications (2)

Publication Number Publication Date
IE35521L true IE35521L (en) 1972-02-24
IE35521B1 IE35521B1 (en) 1976-03-03

Family

ID=22069181

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1036/71A IE35521B1 (en) 1970-08-24 1971-08-16 Free piston engine

Country Status (15)

Country Link
US (1) US3643638A (en)
AT (1) AT313000B (en)
AU (1) AU461891B2 (en)
BE (1) BE771418A (en)
BR (1) BR7105494D0 (en)
CA (1) CA941748A (en)
CH (1) CH556473A (en)
CS (1) CS157128B2 (en)
ES (1) ES394449A1 (en)
FR (1) FR2102017A5 (en)
GB (1) GB1355099A (en)
IE (1) IE35521B1 (en)
NL (1) NL7111343A (en)
SE (1) SE372965B (en)
ZA (1) ZA714719B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3848415A (en) * 1972-12-11 1974-11-19 M Demetrescu Resonant gas-expansion engine with hydraulic energy conversion
US3932989A (en) * 1972-12-11 1976-01-20 Demetrescu Mihai C Resonant gas-expansion engine with hydraulic energy conversion
US4109475A (en) * 1974-12-10 1978-08-29 Van Kooten B.V. Pile-driving ram and method of controlling the same
US4403474A (en) * 1981-04-13 1983-09-13 Ruthven William A Hydrolic fluid-lubricated piston-combustion engine
US4665703A (en) * 1984-03-06 1987-05-19 David Constant V External combustion engine with air-supported free piston
US4653274A (en) * 1984-03-06 1987-03-31 David Constant V Method of controlling a free piston external combustion engine
GB2219671B (en) * 1988-04-26 1993-01-13 Joseph Frank Kos Computer controlled optimized hybrid engine
US4876991A (en) * 1988-12-08 1989-10-31 Galitello Jr Kenneth A Two stroke cycle engine
US5287827A (en) * 1991-09-17 1994-02-22 Tectonics Companies, Inc. Free piston engine control system
US6199519B1 (en) * 1998-06-25 2001-03-13 Sandia Corporation Free-piston engine
US6206656B1 (en) * 1999-02-22 2001-03-27 Caterpillar Inc. Method of operating a free piston internal combustion engine with high pressure hydraulic fluid upon misfire or initial start-up
WO2005100769A2 (en) * 2004-04-19 2005-10-27 Volvo Technology Corporation Method and system for controlling a free-piston energy converter
US6966280B1 (en) * 2004-05-07 2005-11-22 Ford Global Technologies, Llc Compression pulse starting of a free piston internal combustion engine having multiple cylinders
US6971340B1 (en) * 2004-05-20 2005-12-06 Ford Global Technologies, Llc Compression pulse starting of a free piston internal combustion engine
CN101761438B (en) * 2009-12-23 2012-11-21 北京理工大学 Ignition system based on piston linear displacement signal
US10202897B2 (en) * 2013-04-16 2019-02-12 Regents Of The University Of Minnesota Systems and methods for transient control of a free-piston engine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US929696A (en) * 1908-08-21 1909-08-03 Robert S Oberly Explosion power-hammer.
US1732694A (en) * 1926-04-09 1929-10-22 Pescara Raul Pateras Ignition device for air compressors
US2423720A (en) * 1940-11-29 1947-07-08 Mullejans Paul Starter for free piston motor compressors
US2434877A (en) * 1943-05-31 1948-01-20 English Electric Co Ltd Means for starting free piston internal-combustion operated compressors or gas generators
US2462745A (en) * 1944-05-30 1949-02-22 Raul Pateras Pescara Free piston machine provided with pneumatic starting means
US2983098A (en) * 1955-01-25 1961-05-09 Bush Vannevar Gas lubricated free piston engines with supercharging arrangements
US2918788A (en) * 1956-08-09 1959-12-29 Joy Mfg Co Starting mechanism for compressor
US3071120A (en) * 1960-07-19 1963-01-01 Battelle Development Corp Mechanical starter for freepiston engine

Also Published As

Publication number Publication date
GB1355099A (en) 1974-06-05
ES394449A1 (en) 1974-11-01
ZA714719B (en) 1973-02-28
DE2142203B2 (en) 1975-08-21
CS157128B2 (en) 1974-08-23
CH556473A (en) 1974-11-29
AU461891B2 (en) 1975-06-12
BE771418A (en) 1971-12-31
BR7105494D0 (en) 1973-07-10
IE35521B1 (en) 1976-03-03
NL7111343A (en) 1972-02-28
US3643638A (en) 1972-02-22
AT313000B (en) 1974-01-25
CA941748A (en) 1974-02-12
DE2142203A1 (en) 1972-03-02
FR2102017A5 (en) 1972-03-31
SE372965B (en) 1975-01-20
AU3259271A (en) 1973-02-22

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