Inner seal for rotary piston engines and method of making same
US4080120A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 5, 1976 |
| Grant date | Mar 21, 1978 |
| Priority date | — |
| Expiry date | Nov 5, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01C19/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An inner or end seal ring for a rotary piston engine and a method of making the seal ring in which an annular sheet metal strip is formed to a U-shape which opens in the axial direction, while an insert ring having radially disposed axially extending partition elements thereon is placed in the seal ring. The radially inner leg of the seal ring inclines inwardly toward the central axis of the seal ring and the axially outer portion of the radially outer leg of the seal ring also inclines inwardly and holds the insert ring and partition elements thereon captive in the seal ring. The outer ends of the seal ring legs and of the partition elements are co-planar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.