Patent · US Expired

Seal grid for a rotary internal combustion engine

US4080116A · kind A · utility

1Cited by

4References

4Claims

0Family size

Assignee

Audi NSU Auto Union Aktiengesellschaft · DE

Inventors

Anton Mokratschek
Max Ruf · Obereisesheim, DE
Horst Ehemann

Key dates

Filing date	Jun 17, 1975
Grant date	Mar 21, 1978
Priority date	—
Expiry date	Jun 17, 1995

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The improved sealing grid for a rotary internal combustion engine of the Wankel type comprises a transfer passage means intermittently communicating the space between the inner and outer seals with the working chamber in the exhaust phase, to pass spent combustion gas from the latter to said space and thereby intermittently pressurize the space behind the inner seal and thereby urge the latter into sealing contact with the adjacent wall.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.