Patent · US Active

Pneumatic hybrid internal combustion engine on the basis of fixed camshafts

US8657044B2 · kind B2 · utility

3Cited by

6References

14Claims

0Family size

Assignee

ETH ZURICH · CH

Inventors

Christian Dönitz · Markdorf, DE
Christopher Onder · Weisslingen, CH
Julian Vasile · Albeuve, CH
Lino Guzzella · Wallisellen, CH
Pascal Higelin · Saint-Jean-de-Braye, FR
Yann Chamaillard · Le Bardon, FR
Alain Charlet · Plaisir, FR

Key dates

Filing date	Sep 19, 2008
Grant date	Feb 25, 2014
Priority date	—
Expiry date	Sep 4, 2030

Classification

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

Abstract

The present disclosure relates to an pneumatic hybrid internal combustion engine with at least one combustion chamber composed of a cylinder in which a piston is arranged mechanically interconnected to a crank shaft via a piston rod. An inlet valve and an exhaust valve are both mechanically interconnected via a valve gear to the crank shaft. The engine further includes at least one charge valve which is actuated by a charge valve actuator in a fully variable manner such that the engine can be operated in a four stroke hybrid mode.

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