GB819860A - Improvements relating to free piston engines - Google Patents
Improvements relating to free piston enginesInfo
- Publication number
- GB819860A GB819860A GB16302/58A GB1630258A GB819860A GB 819860 A GB819860 A GB 819860A GB 16302/58 A GB16302/58 A GB 16302/58A GB 1630258 A GB1630258 A GB 1630258A GB 819860 A GB819860 A GB 819860A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- oil
- ring
- bearing surfaces
- compressor
- 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
Abstract
819,860. Pistons. GENERAL MOTORS CORPORATION. May 21, 1958 [May 23, 1957], No. 16302/58. Class 122 (1). A piston assembly for a free-piston engine comprises a compressor piston and power piston 32 having bearing surfaces 81, 82 upon which the piston 32 is rotatable relatively to the compressor piston and which are provided with ducts 96 for feeding oil to the bearing surfaces. The piston 32, which may be of cast iron, is formed with a reduced portion 92 on which is press-fitted a sintered iron or bronze bearing band 58, which has a radial flange 94 contacting a ring 79 on a sleeve 29 bolted to the compressor piston and a sleeve portion 90 in contact with the power cylinder 12. A flange 86, also formed on the piston 32, extends through the ring 79 and a snap-ring 88 thereon retains the two pistons together so that the bearing surfaces 81, 82 are in contact. Cooling and lubricating oil is fed through a pipe 52 into an annular chamber 66 in the piston 32 from which it is fed through the ducts 96 to the bearing band 58. The oil is discharged through openings 74 in an inner sleeve 64 in the piston 32 and a pipe 54, a replaceable baffle 114 being provided, if desired, to partially block the openings in order to regulate the amount of oil in the chamber 66.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US819860XA | 1957-05-23 | 1957-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB819860A true GB819860A (en) | 1959-09-09 |
Family
ID=22167667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16302/58A Expired GB819860A (en) | 1957-05-23 | 1958-05-21 | Improvements relating to free piston engines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB819860A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012080575A1 (en) * | 2010-12-16 | 2012-06-21 | Reijo Salminen | Internal combustion engine of the annular piston type and a center shaft for such an engine |
-
1958
- 1958-05-21 GB GB16302/58A patent/GB819860A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012080575A1 (en) * | 2010-12-16 | 2012-06-21 | Reijo Salminen | Internal combustion engine of the annular piston type and a center shaft for such an engine |
| RU2568696C2 (en) * | 2010-12-16 | 2015-11-20 | Реййо САЛМИНЕН | Internal combustion engine with ring piston and central shaft of such engine |
| US9261018B2 (en) | 2010-12-16 | 2016-02-16 | Reijo Salminen | Internal combustion engine of the annular piston type and a center shaft for such an engine |
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