The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 12, 2013
Filed:
Dec. 06, 2007
Stefan Ruppel, Heidelberg, DE;
Yakup Özkaya, Kornwestheim, DE;
Stefan Ruppel, Heidelberg, DE;
Yakup Özkaya, Kornwestheim, DE;
Mahle International GmbH, , DE;
Abstract
The present invention relates to a ventilation device () for ventilating a crankcase () of an internal combustion engine (), particularly in a motor vehicle, comprising a ventilation line (), which is connected at the input side to the crankcase () of the internal combustion engine () in the mounted state, and which is connected at the output side to a fresh gas line () feeding fresh gas to the internal combustion engine (), a ventilation line (), which in the mounted state is connected to the fresh gas line () at the input side and to the crankcase () at the output side. A separator () is arranged in the ventilation line () to remove pollution from the gas that is discharged from the crankcase () and a pressure valve () is arranged in the ventilation line () to control the gas volume discharged from the crankcase (). In order to increase the smoothness of running of the internal combustion engine () in idle, the ventilation device () comprises a locking device () for locking the ventilation line ().