IE35521B1 - Free piston engine - Google Patents
Free piston engineInfo
- Publication number
- IE35521B1 IE35521B1 IE1036/71A IE103671A IE35521B1 IE 35521 B1 IE35521 B1 IE 35521B1 IE 1036/71 A IE1036/71 A IE 1036/71A IE 103671 A IE103671 A IE 103671A IE 35521 B1 IE35521 B1 IE 35521B1
- Authority
- IE
- Ireland
- Prior art keywords
- piston
- power
- movement
- moment
- velocity
- Prior art date
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)
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (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]
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 IE35521L (en) | 1972-02-24 |
IE35521B1 true 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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3932989A (en) * | 1972-12-11 | 1976-01-20 | Demetrescu Mihai C | Resonant gas-expansion engine with hydraulic energy conversion |
US3848415A (en) * | 1972-12-11 | 1974-11-19 | M Demetrescu | 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 |
WO2014172382A1 (en) * | 2013-04-16 | 2014-10-23 | Regents Of The University Of Minnesota | Systems and methods for transient control of a free-piston engine |
Family Cites Families (8)
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 |
-
1970
- 1970-08-24 US US66385A patent/US3643638A/en not_active Expired - Lifetime
-
1971
- 1971-07-16 ZA ZA714719A patent/ZA714719B/en unknown
- 1971-08-16 IE IE1036/71A patent/IE35521B1/en unknown
- 1971-08-17 BE BE771418A patent/BE771418A/en not_active IP Right Cessation
- 1971-08-17 NL NL7111343A patent/NL7111343A/xx unknown
- 1971-08-18 GB GB3880971A patent/GB1355099A/en not_active Expired
- 1971-08-19 CA CA120,958A patent/CA941748A/en not_active Expired
- 1971-08-20 AU AU32592/71A patent/AU461891B2/en not_active Expired
- 1971-08-20 FR FR7130366A patent/FR2102017A5/fr not_active Expired
- 1971-08-23 AT AT734771A patent/AT313000B/en not_active IP Right Cessation
- 1971-08-23 CH CH1233071A patent/CH556473A/en not_active IP Right Cessation
- 1971-08-23 ES ES394449A patent/ES394449A1/en not_active Expired
- 1971-08-23 CS CS602671A patent/CS157128B2/cs unknown
- 1971-08-23 BR BR5494/71A patent/BR7105494D0/en unknown
- 1971-08-24 SE SE7110734A patent/SE372965B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
ES394449A1 (en) | 1974-11-01 |
IE35521L (en) | 1972-02-24 |
NL7111343A (en) | 1972-02-28 |
AU3259271A (en) | 1973-02-22 |
CH556473A (en) | 1974-11-29 |
BR7105494D0 (en) | 1973-07-10 |
AT313000B (en) | 1974-01-25 |
DE2142203A1 (en) | 1972-03-02 |
CS157128B2 (en) | 1974-08-23 |
US3643638A (en) | 1972-02-22 |
SE372965B (en) | 1975-01-20 |
DE2142203B2 (en) | 1975-08-21 |
BE771418A (en) | 1971-12-31 |
GB1355099A (en) | 1974-06-05 |
CA941748A (en) | 1974-02-12 |
ZA714719B (en) | 1973-02-28 |
AU461891B2 (en) | 1975-06-12 |
FR2102017A5 (en) | 1972-03-31 |
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