GB993574A - Seal for rotary piston machine - Google Patents
Seal for rotary piston machineInfo
- Publication number
- GB993574A GB993574A GB3850162A GB3850162A GB993574A GB 993574 A GB993574 A GB 993574A GB 3850162 A GB3850162 A GB 3850162A GB 3850162 A GB3850162 A GB 3850162A GB 993574 A GB993574 A GB 993574A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- sealing strip
- sliding edge
- axis
- recess
- 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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C19/00—Sealing arrangements in rotary-piston machines or engines
- F01C19/10—Sealings for working fluids between radially and axially movable parts
Abstract
993,574. Rotary-piston machines. N.S.U. MOTORENWERKE A.G. Oct. 11. 1962 [Oct. 11, 1961; Nov. 14, 1961], No. 38501/62. Heading F1F. To prevent jamming of the radial seal for the piston of a rotary-piston machine which is rotatably and eccentrically arranged within a cylinder whose contoured surface together with side walls defines an inner space, the radial seal which comprises a sealing strip having clearance within a groove extending the axial width of the piston and a sliding edge parallel to the piston axis for continuous sealing engagement with the contoured surface to seal two adjacent chambers from each other, has the sliding edge of the sealing strip tiltable about an axis parallel to the piston axis which is located in each position of the piston in front of the sliding edge as viewed in the direction of rotation of the piston. Applied to a trochoidal type rotary-piston engine, the sealing strip 6, Fig. 2, loosely mounted in a groove 5 in the corner 8 of a three-sided piston, on rotation of the piston swings through an angle Ï max with respect to the two-lobed epitrochoidal contour 1 .of the cylinder. The invention provides that the sliding edge 7 is tiltable about an axis lying within the arms of an angle a which is the supplement of the angle ° max. with the piston rotating in the direction of the arrow D. As shown in Fig. 3, a recess 10 is provided on the trailing side of the sealing strip 9 and the sliding edge 12 tilts about the base 11 of the recess. In another embodiment, the sealing strip 13a, Fig. 4, mounted in a carrier strip 13 urged outwardly by a spring 17. The sealing strip 13a is bent rearwardly so that its sliding edge 14 tilts about an axis 15 at the leading corner of the carrier strip 13. In a further embodiment, the carrier strip 13<SP>1</SP>, Fig. 5, is chamfered on its leading edge so that it lies within the groove 5 and its trailing face formed with a recess 28 to which lubricant is supplied through a duct 29. Other embodiments are disclosed in Figs. 6 and 7, not shown.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEN20665A DE1174121B (en) | 1961-10-11 | 1961-10-11 | Sealing strip for internal-axis rotary piston machines |
| DEN0020815 | 1961-11-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB993574A true GB993574A (en) | 1965-05-26 |
Family
ID=25988775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3850162A Expired GB993574A (en) | 1961-10-11 | 1962-10-11 | Seal for rotary piston machine |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB993574A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3447477A (en) * | 1967-06-22 | 1969-06-03 | Sperry Rand Corp | Power transmission |
-
1962
- 1962-10-11 GB GB3850162A patent/GB993574A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3447477A (en) * | 1967-06-22 | 1969-06-03 | Sperry Rand Corp | Power transmission |
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