Piston with variable side clearance
US4158328A · kind A · utility
17Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 23, 1977 |
| Grant date | Jun 19, 1979 |
| Priority date | — |
| Expiry date | Sep 23, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J1/04
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A piston having a floating wedge carried in a recess of the skirt for limited axial movement. Reciprocation of the piston shifts the wedge position between upper and lower extremes, reducing the effective piston clearance in its cylinder during the upper portions of its stroke, thus reducing lateral piston motion and resulting piston slap caused noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.