Patent · US Expired

Variable valve distributor for load-controlling a spark-ignited internal combustion engine

US6837198B2 · kind B2 · utility

2Cited by

8References

8Claims

0Family size

Assignee

Ina Schaeffler KG · DE

Inventors

Gerhard Maas · Herzogenaurach, DE
Frank Himsel · Herzogenaurach, DE

Key dates

Filing date	Sep 20, 2001
Grant date	Jan 4, 2005
Priority date	—
Expiry date	Sep 20, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/2107
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention proposes a variable valve train (1) for throttle-free load control of an internal combustion engine. Each cylinder of the internal combustion engine is provided with two inlet valves (9). According to the invention, each inlet valve (9) cooperates with a particular adjusting element (8, 8a), and the adjusting elements (8, 8a) can be actuated independently of each another. This additionally enhances the variability of the valve train.

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