GB556454A - Improvements relating to free-piston machines, particularly to those with variable discharge pressure - Google Patents
Improvements relating to free-piston machines, particularly to those with variable discharge pressureInfo
- Publication number
- GB556454A GB556454A GB12477/40A GB1247740A GB556454A GB 556454 A GB556454 A GB 556454A GB 12477/40 A GB12477/40 A GB 12477/40A GB 1247740 A GB1247740 A GB 1247740A GB 556454 A GB556454 A GB 556454A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- accumulators
- pressure
- piston
- source
- 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
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
Abstract
556,454. Free-piston compressors and gas generators. PESCARA, R. P. Aug. 1, 1940, No. 12477. Convention date, Aug. 2, 1939. [Class 8 (i)] [Also in Group XXVII] A free-piston compressor or gas generator in which the pistons are returned by the pressure of gas in accumulators A', A<SP>2</SP> has controllable means for transferring gas between the accumulators and a source of pressure, the pressure in this source lying between the maximum and minimum pressures in the accumulators during each working cycle. The pistons 2<SP>1</SP> are actuated by internal combustion in a cylinder 1, and are connected to pistons 5<SP>1</SP> compressing air on their inner sides and delivering it to a chamber 9 acting as a source of scavenging air and as the said source of pressure. The fuel supply pump is actuated by the synchronizing pinion 10. When the mean pressure in the accumulator A<SP>1</SP> varies, the valve 31 opened by the piston at a point of its stroke communicates this variation to a cylinder 25 and so varies the position of a cam 28, and moves a valve 30 into communication with one of two ports 116<SP>2</SP> leading to chambers having valves which respectively allow passage of air to the accumulators from the scavenge space 9 and vice versa. The regulation of the fuel pump is controlled from the governor of a turbine supplied by the generator through a link 14, and in case of rapid change of load this link acts on an abutment 33 to give an immediate shift to the valve 30. A lever 39 also acts on release and supply valves in the passage leading to the accumulators. In a modification, some of the parts are omitted, the transfer valve 30 is replaced by valve chambers such as 115<SP>2</SP> caused to slide in a chamber in the transfer pipe, and the valve 31 is replaced by a restriction in the rod extending upwards from the piston 5<SP>1</SP>, this restriction cooperating with a pipe, leading to cylinder 25, through which the rod passes transversely.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU556454X | 1939-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB556454A true GB556454A (en) | 1943-10-06 |
Family
ID=19732913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12477/40A Expired GB556454A (en) | 1939-08-02 | 1940-08-01 | Improvements relating to free-piston machines, particularly to those with variable discharge pressure |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB556454A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2462745A (en) * | 1944-05-30 | 1949-02-22 | Raul Pateras Pescara | Free piston machine provided with pneumatic starting means |
| US2463051A (en) * | 1942-08-13 | 1949-03-01 | Pescara Raul Pateras | Starting device for free piston engines |
| US2783750A (en) * | 1953-01-30 | 1957-03-05 | Participations Soc Et | Auto-generators of hot gases under pressure, and in particular in free piston auto-generators |
| US2823653A (en) * | 1956-06-26 | 1958-02-18 | Gen Motors Corp | Free piston engine control |
| US2854963A (en) * | 1957-05-27 | 1958-10-07 | Baldwin Lima Hamilton Corp | Free piston engines |
| US2926642A (en) * | 1958-04-10 | 1960-03-01 | Soc Es Energie Sa | Automatic control of free-piston gas-generators |
| US3020706A (en) * | 1957-12-03 | 1962-02-13 | Participations Eau Soc Et | Control means for free-piston or semi-free piston engines |
-
1940
- 1940-08-01 GB GB12477/40A patent/GB556454A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2463051A (en) * | 1942-08-13 | 1949-03-01 | Pescara Raul Pateras | Starting device for free piston engines |
| US2462745A (en) * | 1944-05-30 | 1949-02-22 | Raul Pateras Pescara | Free piston machine provided with pneumatic starting means |
| US2783750A (en) * | 1953-01-30 | 1957-03-05 | Participations Soc Et | Auto-generators of hot gases under pressure, and in particular in free piston auto-generators |
| US2823653A (en) * | 1956-06-26 | 1958-02-18 | Gen Motors Corp | Free piston engine control |
| US2854963A (en) * | 1957-05-27 | 1958-10-07 | Baldwin Lima Hamilton Corp | Free piston engines |
| US3020706A (en) * | 1957-12-03 | 1962-02-13 | Participations Eau Soc Et | Control means for free-piston or semi-free piston engines |
| US2926642A (en) * | 1958-04-10 | 1960-03-01 | Soc Es Energie Sa | Automatic control of free-piston gas-generators |
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