Patent · US Expired

Subunit for an additional control valve device used for an intake pipe of a reciprocating internal combustion engine

US7222603B2 · kind B2 · utility

1Cited by

6References

8Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Rajko Colic · Bad Homburg vor der Höhe, DE
Herbert Severien · Gelnhausen, DE

Key dates

Filing date	Jun 17, 2004
Grant date	May 29, 2007
Priority date	—
Expiry date	Jun 17, 2024

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02B29/083
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

Disclosed is a subunit having a hollow cylinder which is provided with an opening on at least one face and in which a spring bearing is arranged on the inside of the face and a first valve spring resting against said spring bearing. A shaft that is guided within the spring bearing is disposed in the first valve spring so as to be reversibly movable in the direction of the longitudinal axis of the hollow cylinder. A thrust bearing for the first valve spring is located at the end of the shaft, which faces away from said face of the hollow cylinder, the thrust bearing being connected to the shaft. A second valve spring is placed between the thrust bearing and the interior on the opposite face of the hollow cylinder.

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